blob: 2e9ea46e2f0ce72800ddab6813210e9feddbfab2
1 | /* vi: set sw=4 ts=4: */ |
2 | /* |
3 | * Busybox main internal header file |
4 | * |
5 | * Based in part on code from sash, Copyright (c) 1999 by David I. Bell |
6 | * Permission has been granted to redistribute this code under GPL. |
7 | * |
8 | * Licensed under GPLv2, see file LICENSE in this source tree. |
9 | */ |
10 | #ifndef LIBBB_H |
11 | #define LIBBB_H 1 |
12 | |
13 | #include "platform.h" |
14 | |
15 | #include <ctype.h> |
16 | #include <dirent.h> |
17 | #include <errno.h> |
18 | #include <fcntl.h> |
19 | #include <inttypes.h> |
20 | #include <netdb.h> |
21 | #include <setjmp.h> |
22 | #include <signal.h> |
23 | #include <paths.h> |
24 | #if defined __UCLIBC__ /* TODO: and glibc? */ |
25 | /* use inlined versions of these: */ |
26 | # define sigfillset(s) __sigfillset(s) |
27 | # define sigemptyset(s) __sigemptyset(s) |
28 | # define sigisemptyset(s) __sigisemptyset(s) |
29 | #endif |
30 | #include <stdint.h> |
31 | #include <stdio.h> |
32 | #include <stdlib.h> |
33 | #include <stdarg.h> |
34 | #include <stddef.h> |
35 | #include <string.h> |
36 | /* There are two incompatible basename's, let's not use them! */ |
37 | /* See the dirname/basename man page for details */ |
38 | #include <libgen.h> /* dirname,basename */ |
39 | #undef basename |
40 | #define basename dont_use_basename |
41 | #include <poll.h> |
42 | #include <sys/ioctl.h> |
43 | #include <sys/mman.h> |
44 | #include <sys/socket.h> |
45 | #include <sys/stat.h> |
46 | #include <sys/time.h> |
47 | #include <sys/types.h> |
48 | #ifndef major |
49 | # include <sys/sysmacros.h> |
50 | #endif |
51 | #include <sys/wait.h> |
52 | #include <termios.h> |
53 | #include <time.h> |
54 | #include <sys/param.h> |
55 | #include <pwd.h> |
56 | #include <grp.h> |
57 | #if ENABLE_FEATURE_SHADOWPASSWDS |
58 | # if !ENABLE_USE_BB_SHADOW |
59 | /* If using busybox's shadow implementation, do not include the shadow.h |
60 | * header as the toolchain may not provide it at all. |
61 | */ |
62 | # include <shadow.h> |
63 | # endif |
64 | #endif |
65 | #if defined(ANDROID) || defined(__ANDROID__) |
66 | # define endpwent() ((void)0) |
67 | # define endgrent() ((void)0) |
68 | #endif |
69 | #ifdef HAVE_MNTENT_H |
70 | # include <mntent.h> |
71 | #endif |
72 | #ifdef HAVE_SYS_STATFS_H |
73 | # include <sys/statfs.h> |
74 | #endif |
75 | /* Don't do this here: |
76 | * #include <sys/sysinfo.h> |
77 | * Some linux/ includes pull in conflicting definition |
78 | * of struct sysinfo (only in some toolchanins), which breaks build. |
79 | * Include sys/sysinfo.h only in those files which need it. |
80 | */ |
81 | #if ENABLE_SELINUX |
82 | # include <selinux/selinux.h> |
83 | # include <selinux/context.h> |
84 | #endif |
85 | #if ENABLE_FEATURE_UTMP |
86 | # if defined __UCLIBC__ && ( \ |
87 | (UCLIBC_VERSION >= KERNEL_VERSION(0, 9, 32) \ |
88 | && UCLIBC_VERSION < KERNEL_VERSION(0, 9, 34) \ |
89 | && defined __UCLIBC_HAS_UTMPX__ \ |
90 | ) || ( \ |
91 | UCLIBC_VERSION >= KERNEL_VERSION(0, 9, 34) \ |
92 | ) \ |
93 | ) |
94 | # include <utmpx.h> |
95 | # elif defined __UCLIBC__ |
96 | # include <utmp.h> |
97 | # define utmpx utmp |
98 | # define setutxent setutent |
99 | # define endutxent endutent |
100 | # define getutxent getutent |
101 | # define getutxid getutid |
102 | # define getutxline getutline |
103 | # define pututxline pututline |
104 | # define utmpxname utmpname |
105 | # define updwtmpx updwtmp |
106 | # define _PATH_UTMPX _PATH_UTMP |
107 | # else |
108 | # include <utmp.h> |
109 | # include <utmpx.h> |
110 | # if defined _PATH_UTMP && !defined _PATH_UTMPX |
111 | # define _PATH_UTMPX _PATH_UTMP |
112 | # endif |
113 | # endif |
114 | #endif |
115 | #if ENABLE_LOCALE_SUPPORT |
116 | # include <locale.h> |
117 | #else |
118 | # define setlocale(x,y) ((void)0) |
119 | #endif |
120 | #ifdef DMALLOC |
121 | # include <dmalloc.h> |
122 | #endif |
123 | /* Just in case libc doesn't define some of these... */ |
124 | #ifndef _PATH_PASSWD |
125 | #define _PATH_PASSWD "/etc/passwd" |
126 | #endif |
127 | #ifndef _PATH_GROUP |
128 | #define _PATH_GROUP "/etc/group" |
129 | #endif |
130 | #ifndef _PATH_SHADOW |
131 | #define _PATH_SHADOW "/etc/shadow" |
132 | #endif |
133 | #ifndef _PATH_GSHADOW |
134 | #define _PATH_GSHADOW "/etc/gshadow" |
135 | #endif |
136 | #if defined __FreeBSD__ || defined __OpenBSD__ |
137 | # include <netinet/in.h> |
138 | # include <arpa/inet.h> |
139 | #elif defined __APPLE__ |
140 | # include <netinet/in.h> |
141 | #else |
142 | # include <arpa/inet.h> |
143 | //This breaks on bionic: |
144 | //# if !defined(__socklen_t_defined) && !defined(_SOCKLEN_T_DECLARED) |
145 | ///* We #define socklen_t *after* includes, otherwise we get |
146 | // * typedef redefinition errors from system headers |
147 | // * (in case "is it defined already" detection above failed) |
148 | // */ |
149 | //# define socklen_t bb_socklen_t |
150 | // typedef unsigned socklen_t; |
151 | //# endif |
152 | //if this is still needed, add a fix along the lines of |
153 | // ifdef SPECIFIC_BROKEN_LIBC_CHECK / typedef socklen_t / endif |
154 | //in platform.h instead! |
155 | #endif |
156 | #ifndef HAVE_CLEARENV |
157 | # define clearenv() do { if (environ) environ[0] = NULL; } while (0) |
158 | #endif |
159 | #ifndef HAVE_FDATASYNC |
160 | # define fdatasync fsync |
161 | #endif |
162 | #ifndef HAVE_XTABS |
163 | # define XTABS TAB3 |
164 | #endif |
165 | |
166 | |
167 | /* Some libc's forget to declare these, do it ourself */ |
168 | |
169 | extern char **environ; |
170 | #if defined(__GLIBC__) && __GLIBC__ < 2 |
171 | int vdprintf(int d, const char *format, va_list ap); |
172 | #endif |
173 | /* klogctl is in libc's klog.h, but we cheat and not #include that */ |
174 | int klogctl(int type, char *b, int len); |
175 | #ifndef PATH_MAX |
176 | # define PATH_MAX 256 |
177 | #endif |
178 | #ifndef BUFSIZ |
179 | # define BUFSIZ 4096 |
180 | #endif |
181 | |
182 | |
183 | /* Busybox does not use threads, we can speed up stdio. */ |
184 | #ifdef HAVE_UNLOCKED_STDIO |
185 | # undef getc |
186 | # define getc(stream) getc_unlocked(stream) |
187 | # undef getchar |
188 | # define getchar() getchar_unlocked() |
189 | # undef putc |
190 | # define putc(c,stream) putc_unlocked(c,stream) |
191 | # undef putchar |
192 | # define putchar(c) putchar_unlocked(c) |
193 | # undef fgetc |
194 | # define fgetc(stream) getc_unlocked(stream) |
195 | # undef fputc |
196 | # define fputc(c,stream) putc_unlocked(c,stream) |
197 | #endif |
198 | /* Above functions are required by POSIX.1-2008, below ones are extensions */ |
199 | #ifdef HAVE_UNLOCKED_LINE_OPS |
200 | # undef fgets |
201 | # define fgets(s,n,stream) fgets_unlocked(s,n,stream) |
202 | # undef fputs |
203 | # define fputs(s,stream) fputs_unlocked(s,stream) |
204 | /* musl <= 1.1.15 does not support fflush_unlocked(NULL) */ |
205 | //# undef fflush |
206 | //# define fflush(stream) fflush_unlocked(stream) |
207 | # undef feof |
208 | # define feof(stream) feof_unlocked(stream) |
209 | # undef ferror |
210 | # define ferror(stream) ferror_unlocked(stream) |
211 | # undef fileno |
212 | # define fileno(stream) fileno_unlocked(stream) |
213 | #endif |
214 | |
215 | |
216 | /* Make all declarations hidden (-fvisibility flag only affects definitions) */ |
217 | /* (don't include system headers after this until corresponding pop!) */ |
218 | PUSH_AND_SET_FUNCTION_VISIBILITY_TO_HIDDEN |
219 | |
220 | |
221 | #if ENABLE_USE_BB_PWD_GRP |
222 | # include "pwd_.h" |
223 | # include "grp_.h" |
224 | #endif |
225 | #if ENABLE_FEATURE_SHADOWPASSWDS |
226 | # if ENABLE_USE_BB_SHADOW |
227 | # include "shadow_.h" |
228 | # endif |
229 | #endif |
230 | |
231 | /* Tested to work correctly with all int types (IIRC :]) */ |
232 | #define MAXINT(T) (T)( \ |
233 | ((T)-1) > 0 \ |
234 | ? (T)-1 \ |
235 | : (T)~((T)1 << (sizeof(T)*8-1)) \ |
236 | ) |
237 | |
238 | #define MININT(T) (T)( \ |
239 | ((T)-1) > 0 \ |
240 | ? (T)0 \ |
241 | : ((T)1 << (sizeof(T)*8-1)) \ |
242 | ) |
243 | |
244 | /* Large file support */ |
245 | /* Note that CONFIG_LFS=y forces bbox to be built with all common ops |
246 | * (stat, lseek etc) mapped to "largefile" variants by libc. |
247 | * Practically it means that open() automatically has O_LARGEFILE added |
248 | * and all filesize/file_offset parameters and struct members are "large" |
249 | * (in today's world - signed 64bit). For full support of large files, |
250 | * we need a few helper #defines (below) and careful use of off_t |
251 | * instead of int/ssize_t. No lseek64(), O_LARGEFILE etc necessary */ |
252 | #if ENABLE_LFS |
253 | /* CONFIG_LFS is on */ |
254 | # if ULONG_MAX > 0xffffffff |
255 | /* "long" is long enough on this system */ |
256 | typedef unsigned long uoff_t; |
257 | # define XATOOFF(a) xatoul_range((a), 0, LONG_MAX) |
258 | /* usage: sz = BB_STRTOOFF(s, NULL, 10); if (errno || sz < 0) die(); */ |
259 | # define BB_STRTOOFF bb_strtoul |
260 | # define STRTOOFF strtoul |
261 | /* usage: printf("size: %"OFF_FMT"d (%"OFF_FMT"x)\n", sz, sz); */ |
262 | # define OFF_FMT "l" |
263 | # else |
264 | /* "long" is too short, need "long long" */ |
265 | typedef unsigned long long uoff_t; |
266 | # define XATOOFF(a) xatoull_range((a), 0, LLONG_MAX) |
267 | # define BB_STRTOOFF bb_strtoull |
268 | # define STRTOOFF strtoull |
269 | # define OFF_FMT "ll" |
270 | # endif |
271 | #else |
272 | /* CONFIG_LFS is off */ |
273 | # if UINT_MAX == 0xffffffff |
274 | /* While sizeof(off_t) == sizeof(int), off_t is typedef'ed to long anyway. |
275 | * gcc will throw warnings on printf("%d", off_t). Crap... */ |
276 | typedef unsigned long uoff_t; |
277 | # define XATOOFF(a) xatoi_positive(a) |
278 | # define BB_STRTOOFF bb_strtou |
279 | # define STRTOOFF strtol |
280 | # define OFF_FMT "l" |
281 | # else |
282 | typedef unsigned long uoff_t; |
283 | # define XATOOFF(a) xatoul_range((a), 0, LONG_MAX) |
284 | # define BB_STRTOOFF bb_strtoul |
285 | # define STRTOOFF strtol |
286 | # define OFF_FMT "l" |
287 | # endif |
288 | #endif |
289 | /* scary. better ideas? (but do *test* them first!) */ |
290 | #define OFF_T_MAX ((off_t)~((off_t)1 << (sizeof(off_t)*8-1))) |
291 | /* Users report bionic to use 32-bit off_t even if LARGEFILE support is requested. |
292 | * We misdetected that. Don't let it build: |
293 | */ |
294 | struct BUG_off_t_size_is_misdetected { |
295 | char BUG_off_t_size_is_misdetected[sizeof(off_t) == sizeof(uoff_t) ? 1 : -1]; |
296 | }; |
297 | |
298 | /* Some useful definitions */ |
299 | #undef FALSE |
300 | #define FALSE ((int) 0) |
301 | #undef TRUE |
302 | #define TRUE ((int) 1) |
303 | #undef SKIP |
304 | #define SKIP ((int) 2) |
305 | |
306 | /* Macros for min/max. */ |
307 | #ifndef MIN |
308 | #define MIN(a,b) (((a)<(b))?(a):(b)) |
309 | #endif |
310 | |
311 | #ifndef MAX |
312 | #define MAX(a,b) (((a)>(b))?(a):(b)) |
313 | #endif |
314 | |
315 | /* buffer allocation schemes */ |
316 | #if ENABLE_FEATURE_BUFFERS_GO_ON_STACK |
317 | #define RESERVE_CONFIG_BUFFER(buffer,len) char buffer[len] |
318 | #define RESERVE_CONFIG_UBUFFER(buffer,len) unsigned char buffer[len] |
319 | #define RELEASE_CONFIG_BUFFER(buffer) ((void)0) |
320 | #else |
321 | #if ENABLE_FEATURE_BUFFERS_GO_IN_BSS |
322 | #define RESERVE_CONFIG_BUFFER(buffer,len) static char buffer[len] |
323 | #define RESERVE_CONFIG_UBUFFER(buffer,len) static unsigned char buffer[len] |
324 | #define RELEASE_CONFIG_BUFFER(buffer) ((void)0) |
325 | #else |
326 | #define RESERVE_CONFIG_BUFFER(buffer,len) char *buffer = xmalloc(len) |
327 | #define RESERVE_CONFIG_UBUFFER(buffer,len) unsigned char *buffer = xmalloc(len) |
328 | #define RELEASE_CONFIG_BUFFER(buffer) free(buffer) |
329 | #endif |
330 | #endif |
331 | |
332 | #if defined(__GLIBC__) |
333 | /* glibc uses __errno_location() to get a ptr to errno */ |
334 | /* We can just memorize it once - no multithreading in busybox :) */ |
335 | extern int *const bb_errno; |
336 | #undef errno |
337 | #define errno (*bb_errno) |
338 | #endif |
339 | |
340 | #if !(ULONG_MAX > 0xffffffff) |
341 | /* Only 32-bit CPUs need this, 64-bit ones use inlined version */ |
342 | uint64_t bb_bswap_64(uint64_t x) FAST_FUNC; |
343 | #endif |
344 | |
345 | unsigned long long monotonic_ns(void) FAST_FUNC; |
346 | unsigned long long monotonic_us(void) FAST_FUNC; |
347 | unsigned long long monotonic_ms(void) FAST_FUNC; |
348 | unsigned monotonic_sec(void) FAST_FUNC; |
349 | |
350 | extern void chomp(char *s) FAST_FUNC; |
351 | extern void trim(char *s) FAST_FUNC; |
352 | extern char *skip_whitespace(const char *) FAST_FUNC; |
353 | extern char *skip_non_whitespace(const char *) FAST_FUNC; |
354 | extern char *skip_dev_pfx(const char *tty_name) FAST_FUNC; |
355 | |
356 | extern char *strrstr(const char *haystack, const char *needle) FAST_FUNC; |
357 | |
358 | //TODO: supply a pointer to char[11] buffer (avoid statics)? |
359 | extern const char *bb_mode_string(mode_t mode) FAST_FUNC; |
360 | extern int is_directory(const char *name, int followLinks) FAST_FUNC; |
361 | enum { /* cp.c, mv.c, install.c depend on these values. CAREFUL when changing them! */ |
362 | FILEUTILS_PRESERVE_STATUS = 1 << 0, /* -p */ |
363 | FILEUTILS_DEREFERENCE = 1 << 1, /* !-d */ |
364 | FILEUTILS_RECUR = 1 << 2, /* -R */ |
365 | FILEUTILS_FORCE = 1 << 3, /* -f */ |
366 | FILEUTILS_INTERACTIVE = 1 << 4, /* -i */ |
367 | FILEUTILS_MAKE_HARDLINK = 1 << 5, /* -l */ |
368 | FILEUTILS_MAKE_SOFTLINK = 1 << 6, /* -s */ |
369 | FILEUTILS_DEREF_SOFTLINK = 1 << 7, /* -L */ |
370 | FILEUTILS_DEREFERENCE_L0 = 1 << 8, /* -H */ |
371 | /* -a = -pdR (mapped in cp.c) */ |
372 | /* -r = -dR (mapped in cp.c) */ |
373 | /* -P = -d (mapped in cp.c) */ |
374 | FILEUTILS_VERBOSE = (1 << 12) * ENABLE_FEATURE_VERBOSE, /* -v */ |
375 | FILEUTILS_UPDATE = 1 << 13, /* -u */ |
376 | #if ENABLE_SELINUX |
377 | FILEUTILS_PRESERVE_SECURITY_CONTEXT = 1 << 14, /* -c */ |
378 | #endif |
379 | FILEUTILS_RMDEST = 1 << (15 - !ENABLE_SELINUX), /* --remove-destination */ |
380 | /* |
381 | * Hole. cp may have some bits set here, |
382 | * they should not affect remove_file()/copy_file() |
383 | */ |
384 | #if ENABLE_SELINUX |
385 | FILEUTILS_SET_SECURITY_CONTEXT = 1 << 30, |
386 | #endif |
387 | FILEUTILS_IGNORE_CHMOD_ERR = 1 << 31, |
388 | }; |
389 | #define FILEUTILS_CP_OPTSTR "pdRfilsLHarPvu" IF_SELINUX("c") |
390 | extern int remove_file(const char *path, int flags) FAST_FUNC; |
391 | /* NB: without FILEUTILS_RECUR in flags, it will basically "cat" |
392 | * the source, not copy (unless "source" is a directory). |
393 | * This makes "cp /dev/null file" and "install /dev/null file" (!!!) |
394 | * work coreutils-compatibly. */ |
395 | extern int copy_file(const char *source, const char *dest, int flags) FAST_FUNC; |
396 | |
397 | enum { |
398 | ACTION_RECURSE = (1 << 0), |
399 | ACTION_FOLLOWLINKS = (1 << 1), |
400 | ACTION_FOLLOWLINKS_L0 = (1 << 2), |
401 | ACTION_DEPTHFIRST = (1 << 3), |
402 | /*ACTION_REVERSE = (1 << 4), - unused */ |
403 | ACTION_QUIET = (1 << 5), |
404 | ACTION_DANGLING_OK = (1 << 6), |
405 | }; |
406 | typedef uint8_t recurse_flags_t; |
407 | extern int recursive_action(const char *fileName, unsigned flags, |
408 | int FAST_FUNC (*fileAction)(const char *fileName, struct stat* statbuf, void* userData, int depth), |
409 | int FAST_FUNC (*dirAction)(const char *fileName, struct stat* statbuf, void* userData, int depth), |
410 | void* userData, unsigned depth) FAST_FUNC; |
411 | extern int device_open(const char *device, int mode) FAST_FUNC; |
412 | enum { GETPTY_BUFSIZE = 16 }; /* more than enough for "/dev/ttyXXX" */ |
413 | extern int xgetpty(char *line) FAST_FUNC; |
414 | extern int get_console_fd_or_die(void) FAST_FUNC; |
415 | extern void console_make_active(int fd, const int vt_num) FAST_FUNC; |
416 | extern char *find_block_device(const char *path) FAST_FUNC; |
417 | /* bb_copyfd_XX print read/write errors and return -1 if they occur */ |
418 | extern off_t bb_copyfd_eof(int fd1, int fd2) FAST_FUNC; |
419 | extern off_t bb_copyfd_size(int fd1, int fd2, off_t size) FAST_FUNC; |
420 | extern void bb_copyfd_exact_size(int fd1, int fd2, off_t size) FAST_FUNC; |
421 | /* "short" copy can be detected by return value < size */ |
422 | /* this helper yells "short read!" if param is not -1 */ |
423 | extern void complain_copyfd_and_die(off_t sz) NORETURN FAST_FUNC; |
424 | |
425 | extern char bb_process_escape_sequence(const char **ptr) FAST_FUNC; |
426 | char* strcpy_and_process_escape_sequences(char *dst, const char *src) FAST_FUNC; |
427 | /* xxxx_strip version can modify its parameter: |
428 | * "/" -> "/" |
429 | * "abc" -> "abc" |
430 | * "abc/def" -> "def" |
431 | * "abc/def/" -> "def" !! |
432 | */ |
433 | char *bb_get_last_path_component_strip(char *path) FAST_FUNC; |
434 | /* "abc/def/" -> "" and it never modifies 'path' */ |
435 | char *bb_get_last_path_component_nostrip(const char *path) FAST_FUNC; |
436 | /* Simpler version: does not special case "/" string */ |
437 | const char *bb_basename(const char *name) FAST_FUNC; |
438 | /* NB: can violate const-ness (similarly to strchr) */ |
439 | char *last_char_is(const char *s, int c) FAST_FUNC; |
440 | const char* endofname(const char *name) FAST_FUNC; |
441 | char *is_prefixed_with(const char *string, const char *key) FAST_FUNC; |
442 | char *is_suffixed_with(const char *string, const char *key) FAST_FUNC; |
443 | |
444 | int ndelay_on(int fd) FAST_FUNC; |
445 | int ndelay_off(int fd) FAST_FUNC; |
446 | void close_on_exec_on(int fd) FAST_FUNC; |
447 | void xdup2(int, int) FAST_FUNC; |
448 | void xmove_fd(int, int) FAST_FUNC; |
449 | |
450 | |
451 | DIR *xopendir(const char *path) FAST_FUNC; |
452 | DIR *warn_opendir(const char *path) FAST_FUNC; |
453 | |
454 | char *xmalloc_realpath(const char *path) FAST_FUNC RETURNS_MALLOC; |
455 | char *xmalloc_readlink(const char *path) FAST_FUNC RETURNS_MALLOC; |
456 | char *xmalloc_readlink_or_warn(const char *path) FAST_FUNC RETURNS_MALLOC; |
457 | /* !RETURNS_MALLOC: it's a realloc-like function */ |
458 | char *xrealloc_getcwd_or_warn(char *cwd) FAST_FUNC; |
459 | |
460 | char *xmalloc_follow_symlinks(const char *path) FAST_FUNC RETURNS_MALLOC; |
461 | |
462 | |
463 | enum { |
464 | /* bb_signals(BB_FATAL_SIGS, handler) catches all signals which |
465 | * otherwise would kill us, except for those resulting from bugs: |
466 | * SIGSEGV, SIGILL, SIGFPE. |
467 | * Other fatal signals not included (TODO?): |
468 | * SIGBUS Bus error (bad memory access) |
469 | * SIGPOLL Pollable event. Synonym of SIGIO |
470 | * SIGPROF Profiling timer expired |
471 | * SIGSYS Bad argument to routine |
472 | * SIGTRAP Trace/breakpoint trap |
473 | * |
474 | * The only known arch with some of these sigs not fitting |
475 | * into 32 bits is parisc (SIGXCPU=33, SIGXFSZ=34, SIGSTKFLT=36). |
476 | * Dance around with long long to guard against that... |
477 | */ |
478 | BB_FATAL_SIGS = (int)(0 |
479 | + (1LL << SIGHUP) |
480 | + (1LL << SIGINT) |
481 | + (1LL << SIGTERM) |
482 | + (1LL << SIGPIPE) // Write to pipe with no readers |
483 | + (1LL << SIGQUIT) // Quit from keyboard |
484 | + (1LL << SIGABRT) // Abort signal from abort(3) |
485 | + (1LL << SIGALRM) // Timer signal from alarm(2) |
486 | + (1LL << SIGVTALRM) // Virtual alarm clock |
487 | + (1LL << SIGXCPU) // CPU time limit exceeded |
488 | + (1LL << SIGXFSZ) // File size limit exceeded |
489 | + (1LL << SIGUSR1) // Yes kids, these are also fatal! |
490 | + (1LL << SIGUSR2) |
491 | + 0), |
492 | }; |
493 | void bb_signals(int sigs, void (*f)(int)) FAST_FUNC; |
494 | /* Unlike signal() and bb_signals, sets handler with sigaction() |
495 | * and in a way that while signal handler is run, no other signals |
496 | * will be blocked; syscalls will not be restarted: */ |
497 | void bb_signals_recursive_norestart(int sigs, void (*f)(int)) FAST_FUNC; |
498 | /* syscalls like read() will be interrupted with EINTR: */ |
499 | void signal_no_SA_RESTART_empty_mask(int sig, void (*handler)(int)) FAST_FUNC; |
500 | /* syscalls like read() won't be interrupted (though select/poll will be): */ |
501 | void signal_SA_RESTART_empty_mask(int sig, void (*handler)(int)) FAST_FUNC; |
502 | void wait_for_any_sig(void) FAST_FUNC; |
503 | void kill_myself_with_sig(int sig) NORETURN FAST_FUNC; |
504 | void sig_block(int sig) FAST_FUNC; |
505 | void sig_unblock(int sig) FAST_FUNC; |
506 | /* Will do sigaction(signum, act, NULL): */ |
507 | int sigaction_set(int sig, const struct sigaction *act) FAST_FUNC; |
508 | /* SIG_BLOCK/SIG_UNBLOCK all signals: */ |
509 | int sigprocmask_allsigs(int how) FAST_FUNC; |
510 | /* Standard handler which just records signo */ |
511 | extern smallint bb_got_signal; |
512 | void record_signo(int signo); /* not FAST_FUNC! */ |
513 | |
514 | |
515 | void xsetgid(gid_t gid) FAST_FUNC; |
516 | void xsetuid(uid_t uid) FAST_FUNC; |
517 | void xsetegid(gid_t egid) FAST_FUNC; |
518 | void xseteuid(uid_t euid) FAST_FUNC; |
519 | void xchdir(const char *path) FAST_FUNC; |
520 | void xfchdir(int fd) FAST_FUNC; |
521 | void xchroot(const char *path) FAST_FUNC; |
522 | void xsetenv(const char *key, const char *value) FAST_FUNC; |
523 | void bb_unsetenv(const char *key) FAST_FUNC; |
524 | void bb_unsetenv_and_free(char *key) FAST_FUNC; |
525 | void xunlink(const char *pathname) FAST_FUNC; |
526 | void xstat(const char *pathname, struct stat *buf) FAST_FUNC; |
527 | void xfstat(int fd, struct stat *buf, const char *errmsg) FAST_FUNC; |
528 | int open3_or_warn(const char *pathname, int flags, int mode) FAST_FUNC; |
529 | int open_or_warn(const char *pathname, int flags) FAST_FUNC; |
530 | int xopen3(const char *pathname, int flags, int mode) FAST_FUNC; |
531 | int xopen(const char *pathname, int flags) FAST_FUNC; |
532 | int xopen_nonblocking(const char *pathname) FAST_FUNC; |
533 | int xopen_as_uid_gid(const char *pathname, int flags, uid_t u, gid_t g) FAST_FUNC; |
534 | int open_or_warn_stdin(const char *pathname) FAST_FUNC; |
535 | int xopen_stdin(const char *pathname) FAST_FUNC; |
536 | void xrename(const char *oldpath, const char *newpath) FAST_FUNC; |
537 | int rename_or_warn(const char *oldpath, const char *newpath) FAST_FUNC; |
538 | off_t xlseek(int fd, off_t offset, int whence) FAST_FUNC; |
539 | int xmkstemp(char *template) FAST_FUNC; |
540 | off_t fdlength(int fd) FAST_FUNC; |
541 | |
542 | uoff_t FAST_FUNC get_volume_size_in_bytes(int fd, |
543 | const char *override, |
544 | unsigned override_units, |
545 | int extend); |
546 | |
547 | void xpipe(int filedes[2]) FAST_FUNC; |
548 | /* In this form code with pipes is much more readable */ |
549 | struct fd_pair { int rd; int wr; }; |
550 | #define piped_pair(pair) pipe(&((pair).rd)) |
551 | #define xpiped_pair(pair) xpipe(&((pair).rd)) |
552 | |
553 | /* Useful for having small structure members/global variables */ |
554 | typedef int8_t socktype_t; |
555 | typedef int8_t family_t; |
556 | struct BUG_too_small { |
557 | char BUG_socktype_t_too_small[(0 |
558 | | SOCK_STREAM |
559 | | SOCK_DGRAM |
560 | | SOCK_RDM |
561 | | SOCK_SEQPACKET |
562 | | SOCK_RAW |
563 | ) <= 127 ? 1 : -1]; |
564 | char BUG_family_t_too_small[(0 |
565 | | AF_UNSPEC |
566 | | AF_INET |
567 | | AF_INET6 |
568 | | AF_UNIX |
569 | #ifdef AF_PACKET |
570 | | AF_PACKET |
571 | #endif |
572 | #ifdef AF_NETLINK |
573 | | AF_NETLINK |
574 | #endif |
575 | /* | AF_DECnet */ |
576 | /* | AF_IPX */ |
577 | ) <= 127 ? 1 : -1]; |
578 | }; |
579 | |
580 | |
581 | void parse_datestr(const char *date_str, struct tm *ptm) FAST_FUNC; |
582 | time_t validate_tm_time(const char *date_str, struct tm *ptm) FAST_FUNC; |
583 | char *strftime_HHMMSS(char *buf, unsigned len, time_t *tp) FAST_FUNC; |
584 | char *strftime_YYYYMMDDHHMMSS(char *buf, unsigned len, time_t *tp) FAST_FUNC; |
585 | |
586 | int xsocket(int domain, int type, int protocol) FAST_FUNC; |
587 | void xbind(int sockfd, struct sockaddr *my_addr, socklen_t addrlen) FAST_FUNC; |
588 | void xlisten(int s, int backlog) FAST_FUNC; |
589 | void xconnect(int s, const struct sockaddr *s_addr, socklen_t addrlen) FAST_FUNC; |
590 | ssize_t xsendto(int s, const void *buf, size_t len, const struct sockaddr *to, |
591 | socklen_t tolen) FAST_FUNC; |
592 | |
593 | int setsockopt_int(int fd, int level, int optname, int optval) FAST_FUNC; |
594 | int setsockopt_1(int fd, int level, int optname) FAST_FUNC; |
595 | int setsockopt_SOL_SOCKET_int(int fd, int optname, int optval) FAST_FUNC; |
596 | int setsockopt_SOL_SOCKET_1(int fd, int optname) FAST_FUNC; |
597 | /* SO_REUSEADDR allows a server to rebind to an address that is already |
598 | * "in use" by old connections to e.g. previous server instance which is |
599 | * killed or crashed. Without it bind will fail until all such connections |
600 | * time out. Linux does not allow multiple live binds on same ip:port |
601 | * regardless of SO_REUSEADDR (unlike some other flavors of Unix). |
602 | * Turn it on before you call bind(). */ |
603 | void setsockopt_reuseaddr(int fd) FAST_FUNC; /* On Linux this never fails. */ |
604 | int setsockopt_keepalive(int fd) FAST_FUNC; |
605 | int setsockopt_broadcast(int fd) FAST_FUNC; |
606 | int setsockopt_bindtodevice(int fd, const char *iface) FAST_FUNC; |
607 | /* NB: returns port in host byte order */ |
608 | unsigned bb_lookup_port(const char *port, const char *protocol, unsigned default_port) FAST_FUNC; |
609 | typedef struct len_and_sockaddr { |
610 | socklen_t len; |
611 | union { |
612 | struct sockaddr sa; |
613 | struct sockaddr_in sin; |
614 | #if ENABLE_FEATURE_IPV6 |
615 | struct sockaddr_in6 sin6; |
616 | #endif |
617 | } u; |
618 | } len_and_sockaddr; |
619 | enum { |
620 | LSA_LEN_SIZE = offsetof(len_and_sockaddr, u), |
621 | LSA_SIZEOF_SA = sizeof( |
622 | union { |
623 | struct sockaddr sa; |
624 | struct sockaddr_in sin; |
625 | #if ENABLE_FEATURE_IPV6 |
626 | struct sockaddr_in6 sin6; |
627 | #endif |
628 | } |
629 | ) |
630 | }; |
631 | /* Create stream socket, and allocate suitable lsa. |
632 | * (lsa of correct size and lsa->sa.sa_family (AF_INET/AF_INET6)) |
633 | * af == AF_UNSPEC will result in trying to create IPv6 socket, |
634 | * and if kernel doesn't support it, fall back to IPv4. |
635 | * This is useful if you plan to bind to resulting local lsa. |
636 | */ |
637 | int xsocket_type(len_and_sockaddr **lsap, int af, int sock_type) FAST_FUNC; |
638 | int xsocket_stream(len_and_sockaddr **lsap) FAST_FUNC; |
639 | /* Create server socket bound to bindaddr:port. bindaddr can be NULL, |
640 | * numeric IP ("N.N.N.N") or numeric IPv6 address, |
641 | * and can have ":PORT" suffix (for IPv6 use "[X:X:...:X]:PORT"). |
642 | * Only if there is no suffix, port argument is used */ |
643 | /* NB: these set SO_REUSEADDR before bind */ |
644 | int create_and_bind_stream_or_die(const char *bindaddr, int port) FAST_FUNC; |
645 | int create_and_bind_dgram_or_die(const char *bindaddr, int port) FAST_FUNC; |
646 | /* Create client TCP socket connected to peer:port. Peer cannot be NULL. |
647 | * Peer can be numeric IP ("N.N.N.N"), numeric IPv6 address or hostname, |
648 | * and can have ":PORT" suffix (for IPv6 use "[X:X:...:X]:PORT"). |
649 | * If there is no suffix, port argument is used */ |
650 | int create_and_connect_stream_or_die(const char *peer, int port) FAST_FUNC; |
651 | /* Connect to peer identified by lsa */ |
652 | int xconnect_stream(const len_and_sockaddr *lsa) FAST_FUNC; |
653 | /* Get local address of bound or accepted socket */ |
654 | len_and_sockaddr *get_sock_lsa(int fd) FAST_FUNC RETURNS_MALLOC; |
655 | /* Get remote address of connected or accepted socket */ |
656 | len_and_sockaddr *get_peer_lsa(int fd) FAST_FUNC RETURNS_MALLOC; |
657 | /* Return malloc'ed len_and_sockaddr with socket address of host:port |
658 | * Currently will return IPv4 or IPv6 sockaddrs only |
659 | * (depending on host), but in theory nothing prevents e.g. |
660 | * UNIX socket address being returned, IPX sockaddr etc... |
661 | * On error does bb_error_msg and returns NULL */ |
662 | len_and_sockaddr* host2sockaddr(const char *host, int port) FAST_FUNC RETURNS_MALLOC; |
663 | /* Version which dies on error */ |
664 | len_and_sockaddr* xhost2sockaddr(const char *host, int port) FAST_FUNC RETURNS_MALLOC; |
665 | len_and_sockaddr* xdotted2sockaddr(const char *host, int port) FAST_FUNC RETURNS_MALLOC; |
666 | /* Same, useful if you want to force family (e.g. IPv6) */ |
667 | #if !ENABLE_FEATURE_IPV6 |
668 | #define host_and_af2sockaddr(host, port, af) host2sockaddr((host), (port)) |
669 | #define xhost_and_af2sockaddr(host, port, af) xhost2sockaddr((host), (port)) |
670 | #else |
671 | len_and_sockaddr* host_and_af2sockaddr(const char *host, int port, sa_family_t af) FAST_FUNC RETURNS_MALLOC; |
672 | len_and_sockaddr* xhost_and_af2sockaddr(const char *host, int port, sa_family_t af) FAST_FUNC RETURNS_MALLOC; |
673 | #endif |
674 | /* Assign sin[6]_port member if the socket is an AF_INET[6] one, |
675 | * otherwise no-op. Useful for ftp. |
676 | * NB: does NOT do htons() internally, just direct assignment. */ |
677 | void set_nport(struct sockaddr *sa, unsigned port) FAST_FUNC; |
678 | /* Retrieve sin[6]_port or return -1 for non-INET[6] lsa's */ |
679 | int get_nport(const struct sockaddr *sa) FAST_FUNC; |
680 | /* Reverse DNS. Returns NULL on failure. */ |
681 | char* xmalloc_sockaddr2host(const struct sockaddr *sa) FAST_FUNC RETURNS_MALLOC; |
682 | /* This one doesn't append :PORTNUM */ |
683 | char* xmalloc_sockaddr2host_noport(const struct sockaddr *sa) FAST_FUNC RETURNS_MALLOC; |
684 | /* This one also doesn't fall back to dotted IP (returns NULL) */ |
685 | char* xmalloc_sockaddr2hostonly_noport(const struct sockaddr *sa) FAST_FUNC RETURNS_MALLOC; |
686 | /* inet_[ap]ton on steroids */ |
687 | char* xmalloc_sockaddr2dotted(const struct sockaddr *sa) FAST_FUNC RETURNS_MALLOC; |
688 | char* xmalloc_sockaddr2dotted_noport(const struct sockaddr *sa) FAST_FUNC RETURNS_MALLOC; |
689 | // "old" (ipv4 only) API |
690 | // users: traceroute.c hostname.c - use _list_ of all IPs |
691 | struct hostent *xgethostbyname(const char *name) FAST_FUNC; |
692 | // Also mount.c and inetd.c are using gethostbyname(), |
693 | // + inet_common.c has additional IPv4-only stuff |
694 | |
695 | |
696 | void socket_want_pktinfo(int fd) FAST_FUNC; |
697 | ssize_t send_to_from(int fd, void *buf, size_t len, int flags, |
698 | const struct sockaddr *to, |
699 | const struct sockaddr *from, |
700 | socklen_t tolen) FAST_FUNC; |
701 | ssize_t recv_from_to(int fd, void *buf, size_t len, int flags, |
702 | struct sockaddr *from, |
703 | struct sockaddr *to, |
704 | socklen_t sa_size) FAST_FUNC; |
705 | |
706 | uint16_t inet_cksum(uint16_t *addr, int len) FAST_FUNC; |
707 | |
708 | char *xstrdup(const char *s) FAST_FUNC RETURNS_MALLOC; |
709 | char *xstrndup(const char *s, int n) FAST_FUNC RETURNS_MALLOC; |
710 | void *xmemdup(const void *s, int n) FAST_FUNC RETURNS_MALLOC; |
711 | void overlapping_strcpy(char *dst, const char *src) FAST_FUNC; |
712 | char *safe_strncpy(char *dst, const char *src, size_t size) FAST_FUNC; |
713 | char *strncpy_IFNAMSIZ(char *dst, const char *src) FAST_FUNC; |
714 | unsigned count_strstr(const char *str, const char *sub) FAST_FUNC; |
715 | char *xmalloc_substitute_string(const char *src, int count, const char *sub, const char *repl) FAST_FUNC; |
716 | /* Guaranteed to NOT be a macro (smallest code). Saves nearly 2k on uclibc. |
717 | * But potentially slow, don't use in one-billion-times loops */ |
718 | int bb_putchar(int ch) FAST_FUNC; |
719 | /* Note: does not use stdio, writes to fd 2 directly */ |
720 | int bb_putchar_stderr(char ch) FAST_FUNC; |
721 | char *xasprintf(const char *format, ...) __attribute__ ((format(printf, 1, 2))) FAST_FUNC RETURNS_MALLOC; |
722 | char *auto_string(char *str) FAST_FUNC; |
723 | // gcc-4.1.1 still isn't good enough at optimizing it |
724 | // (+200 bytes compared to macro) |
725 | //static ALWAYS_INLINE |
726 | //int LONE_DASH(const char *s) { return s[0] == '-' && !s[1]; } |
727 | //static ALWAYS_INLINE |
728 | //int NOT_LONE_DASH(const char *s) { return s[0] != '-' || s[1]; } |
729 | #define LONE_DASH(s) ((s)[0] == '-' && !(s)[1]) |
730 | #define NOT_LONE_DASH(s) ((s)[0] != '-' || (s)[1]) |
731 | #define LONE_CHAR(s,c) ((s)[0] == (c) && !(s)[1]) |
732 | #define NOT_LONE_CHAR(s,c) ((s)[0] != (c) || (s)[1]) |
733 | #define DOT_OR_DOTDOT(s) ((s)[0] == '.' && (!(s)[1] || ((s)[1] == '.' && !(s)[2]))) |
734 | |
735 | typedef struct uni_stat_t { |
736 | unsigned byte_count; |
737 | unsigned unicode_count; |
738 | unsigned unicode_width; |
739 | } uni_stat_t; |
740 | /* Returns a string with unprintable chars replaced by '?' or |
741 | * SUBST_WCHAR. This function is unicode-aware. */ |
742 | const char* FAST_FUNC printable_string(uni_stat_t *stats, const char *str); |
743 | /* Prints unprintable char ch as ^C or M-c to file |
744 | * (M-c is used only if ch is ORed with PRINTABLE_META), |
745 | * else it is printed as-is (except for ch = 0x9b) */ |
746 | enum { PRINTABLE_META = 0x100 }; |
747 | void fputc_printable(int ch, FILE *file) FAST_FUNC; |
748 | /* Return a string that is the printable representation of character ch. |
749 | * Buffer must hold at least four characters. */ |
750 | enum { |
751 | VISIBLE_ENDLINE = 1 << 0, |
752 | VISIBLE_SHOW_TABS = 1 << 1, |
753 | }; |
754 | void visible(unsigned ch, char *buf, int flags) FAST_FUNC; |
755 | |
756 | /* dmalloc will redefine these to it's own implementation. It is safe |
757 | * to have the prototypes here unconditionally. */ |
758 | void *malloc_or_warn(size_t size) FAST_FUNC RETURNS_MALLOC; |
759 | void *xmalloc(size_t size) FAST_FUNC RETURNS_MALLOC; |
760 | void *xzalloc(size_t size) FAST_FUNC RETURNS_MALLOC; |
761 | void *xrealloc(void *old, size_t size) FAST_FUNC; |
762 | /* After v = xrealloc_vector(v, SHIFT, idx) it's ok to use |
763 | * at least v[idx] and v[idx+1], for all idx values. |
764 | * SHIFT specifies how many new elements are added (1:2, 2:4, ..., 8:256...) |
765 | * when all elements are used up. New elements are zeroed out. |
766 | * xrealloc_vector(v, SHIFT, idx) *MUST* be called with consecutive IDXs - |
767 | * skipping an index is a bad bug - it may miss a realloc! |
768 | */ |
769 | #define xrealloc_vector(vector, shift, idx) \ |
770 | xrealloc_vector_helper((vector), (sizeof((vector)[0]) << 8) + (shift), (idx)) |
771 | void* xrealloc_vector_helper(void *vector, unsigned sizeof_and_shift, int idx) FAST_FUNC; |
772 | |
773 | |
774 | extern ssize_t safe_read(int fd, void *buf, size_t count) FAST_FUNC; |
775 | extern ssize_t nonblock_immune_read(int fd, void *buf, size_t count) FAST_FUNC; |
776 | // NB: will return short read on error, not -1, |
777 | // if some data was read before error occurred |
778 | extern ssize_t full_read(int fd, void *buf, size_t count) FAST_FUNC; |
779 | extern void xread(int fd, void *buf, size_t count) FAST_FUNC; |
780 | extern unsigned char xread_char(int fd) FAST_FUNC; |
781 | extern ssize_t read_close(int fd, void *buf, size_t maxsz) FAST_FUNC; |
782 | extern ssize_t open_read_close(const char *filename, void *buf, size_t maxsz) FAST_FUNC; |
783 | // Reads one line a-la fgets (but doesn't save terminating '\n'). |
784 | // Reads byte-by-byte. Useful when it is important to not read ahead. |
785 | // Bytes are appended to pfx (which must be malloced, or NULL). |
786 | extern char *xmalloc_reads(int fd, size_t *maxsz_p) FAST_FUNC; |
787 | /* Reads block up to *maxsz_p (default: INT_MAX - 4095) */ |
788 | extern void *xmalloc_read(int fd, size_t *maxsz_p) FAST_FUNC RETURNS_MALLOC; |
789 | /* Returns NULL if file can't be opened (default max size: INT_MAX - 4095) */ |
790 | extern void *xmalloc_open_read_close(const char *filename, size_t *maxsz_p) FAST_FUNC RETURNS_MALLOC; |
791 | /* Never returns NULL */ |
792 | extern void *xmalloc_xopen_read_close(const char *filename, size_t *maxsz_p) FAST_FUNC RETURNS_MALLOC; |
793 | |
794 | #if defined(ARG_MAX) && (ARG_MAX >= 60*1024 || !defined(_SC_ARG_MAX)) |
795 | /* Use _constant_ maximum if: defined && (big enough || no variable one exists) */ |
796 | # define bb_arg_max() ((unsigned)ARG_MAX) |
797 | #elif defined(_SC_ARG_MAX) |
798 | /* Else use variable one (a bit more expensive) */ |
799 | unsigned bb_arg_max(void) FAST_FUNC; |
800 | #else |
801 | /* If all else fails */ |
802 | # define bb_arg_max() ((unsigned)(32 * 1024)) |
803 | #endif |
804 | unsigned bb_clk_tck(void) FAST_FUNC; |
805 | |
806 | #define SEAMLESS_COMPRESSION (0 \ |
807 | || ENABLE_FEATURE_SEAMLESS_XZ \ |
808 | || ENABLE_FEATURE_SEAMLESS_LZMA \ |
809 | || ENABLE_FEATURE_SEAMLESS_BZ2 \ |
810 | || ENABLE_FEATURE_SEAMLESS_GZ \ |
811 | || ENABLE_FEATURE_SEAMLESS_Z) |
812 | |
813 | #if SEAMLESS_COMPRESSION |
814 | /* Autodetects gzip/bzip2 formats. fd may be in the middle of the file! */ |
815 | extern int setup_unzip_on_fd(int fd, int fail_if_not_compressed) FAST_FUNC; |
816 | /* Autodetects .gz etc */ |
817 | extern int open_zipped(const char *fname, int fail_if_not_compressed) FAST_FUNC; |
818 | extern void *xmalloc_open_zipped_read_close(const char *fname, size_t *maxsz_p) FAST_FUNC RETURNS_MALLOC; |
819 | #else |
820 | # define setup_unzip_on_fd(...) (0) |
821 | # define open_zipped(fname, fail_if_not_compressed) open((fname), O_RDONLY); |
822 | # define xmalloc_open_zipped_read_close(fname, maxsz_p) xmalloc_open_read_close((fname), (maxsz_p)) |
823 | #endif |
824 | |
825 | extern ssize_t safe_write(int fd, const void *buf, size_t count) FAST_FUNC; |
826 | // NB: will return short write on error, not -1, |
827 | // if some data was written before error occurred |
828 | extern ssize_t full_write(int fd, const void *buf, size_t count) FAST_FUNC; |
829 | extern void xwrite(int fd, const void *buf, size_t count) FAST_FUNC; |
830 | extern void xwrite_str(int fd, const char *str) FAST_FUNC; |
831 | extern ssize_t full_write1_str(const char *str) FAST_FUNC; |
832 | extern ssize_t full_write2_str(const char *str) FAST_FUNC; |
833 | extern void xopen_xwrite_close(const char* file, const char *str) FAST_FUNC; |
834 | |
835 | /* Close fd, but check for failures (some types of write errors) */ |
836 | extern void xclose(int fd) FAST_FUNC; |
837 | |
838 | /* Reads and prints to stdout till eof, then closes FILE. Exits on error: */ |
839 | extern void xprint_and_close_file(FILE *file) FAST_FUNC; |
840 | |
841 | /* Reads a line from a text file, up to a newline or NUL byte, inclusive. |
842 | * Returns malloc'ed char*. If end is NULL '\n' isn't considered |
843 | * end of line. If end isn't NULL, length of the chunk is stored in it. |
844 | * Returns NULL if EOF/error. |
845 | */ |
846 | extern char *bb_get_chunk_from_file(FILE *file, int *end) FAST_FUNC; |
847 | /* Reads up to (and including) TERMINATING_STRING: */ |
848 | extern char *xmalloc_fgets_str(FILE *file, const char *terminating_string) FAST_FUNC RETURNS_MALLOC; |
849 | /* Same, with limited max size, and returns the length (excluding NUL): */ |
850 | extern char *xmalloc_fgets_str_len(FILE *file, const char *terminating_string, size_t *maxsz_p) FAST_FUNC RETURNS_MALLOC; |
851 | /* Chops off TERMINATING_STRING from the end: */ |
852 | extern char *xmalloc_fgetline_str(FILE *file, const char *terminating_string) FAST_FUNC RETURNS_MALLOC; |
853 | /* Reads up to (and including) "\n" or NUL byte: */ |
854 | extern char *xmalloc_fgets(FILE *file) FAST_FUNC RETURNS_MALLOC; |
855 | /* Chops off '\n' from the end, unlike fgets: */ |
856 | extern char *xmalloc_fgetline(FILE *file) FAST_FUNC RETURNS_MALLOC; |
857 | /* Same, but doesn't try to conserve space (may have some slack after the end) */ |
858 | /* extern char *xmalloc_fgetline_fast(FILE *file) FAST_FUNC RETURNS_MALLOC; */ |
859 | |
860 | void die_if_ferror(FILE *file, const char *msg) FAST_FUNC; |
861 | void die_if_ferror_stdout(void) FAST_FUNC; |
862 | int fflush_all(void) FAST_FUNC; |
863 | void fflush_stdout_and_exit(int retval) NORETURN FAST_FUNC; |
864 | int fclose_if_not_stdin(FILE *file) FAST_FUNC; |
865 | FILE* xfopen(const char *filename, const char *mode) FAST_FUNC; |
866 | /* Prints warning to stderr and returns NULL on failure: */ |
867 | FILE* fopen_or_warn(const char *filename, const char *mode) FAST_FUNC; |
868 | /* "Opens" stdin if filename is special, else just opens file: */ |
869 | FILE* xfopen_stdin(const char *filename) FAST_FUNC; |
870 | FILE* fopen_or_warn_stdin(const char *filename) FAST_FUNC; |
871 | FILE* fopen_for_read(const char *path) FAST_FUNC; |
872 | FILE* xfopen_for_read(const char *path) FAST_FUNC; |
873 | FILE* fopen_for_write(const char *path) FAST_FUNC; |
874 | FILE* xfopen_for_write(const char *path) FAST_FUNC; |
875 | FILE* xfdopen_for_read(int fd) FAST_FUNC; |
876 | FILE* xfdopen_for_write(int fd) FAST_FUNC; |
877 | |
878 | int bb_pstrcmp(const void *a, const void *b) /* not FAST_FUNC! */; |
879 | void qsort_string_vector(char **sv, unsigned count) FAST_FUNC; |
880 | |
881 | /* Wrapper which restarts poll on EINTR or ENOMEM. |
882 | * On other errors complains [perror("poll")] and returns. |
883 | * Warning! May take (much) longer than timeout_ms to return! |
884 | * If this is a problem, use bare poll and open-code EINTR/ENOMEM handling */ |
885 | int safe_poll(struct pollfd *ufds, nfds_t nfds, int timeout_ms) FAST_FUNC; |
886 | |
887 | char *safe_gethostname(void) FAST_FUNC; |
888 | |
889 | /* Convert each alpha char in str to lower-case */ |
890 | char* str_tolower(char *str) FAST_FUNC; |
891 | |
892 | char *utoa(unsigned n) FAST_FUNC; |
893 | char *itoa(int n) FAST_FUNC; |
894 | /* Returns a pointer past the formatted number, does NOT null-terminate */ |
895 | char *utoa_to_buf(unsigned n, char *buf, unsigned buflen) FAST_FUNC; |
896 | char *itoa_to_buf(int n, char *buf, unsigned buflen) FAST_FUNC; |
897 | /* Intelligent formatters of bignums */ |
898 | char *smart_ulltoa4(unsigned long long ul, char buf[4], const char *scale) FAST_FUNC; |
899 | char *smart_ulltoa5(unsigned long long ul, char buf[5], const char *scale) FAST_FUNC; |
900 | /* If block_size == 0, display size without fractional part, |
901 | * else display (size * block_size) with one decimal digit. |
902 | * If display_unit == 0, show value no bigger than 1024 with suffix (K,M,G...), |
903 | * else divide by display_unit and do not use suffix. */ |
904 | #define HUMAN_READABLE_MAX_WIDTH 7 /* "1024.0G" */ |
905 | #define HUMAN_READABLE_MAX_WIDTH_STR "7" |
906 | //TODO: provide pointer to buf (avoid statics)? |
907 | const char *make_human_readable_str(unsigned long long size, |
908 | unsigned long block_size, unsigned long display_unit) FAST_FUNC; |
909 | /* Put a string of hex bytes ("1b2e66fe"...), return advanced pointer */ |
910 | char *bin2hex(char *dst, const char *src, int count) FAST_FUNC; |
911 | /* Reverse */ |
912 | char* hex2bin(char *dst, const char *src, int count) FAST_FUNC; |
913 | |
914 | /* Generate a UUID */ |
915 | void generate_uuid(uint8_t *buf) FAST_FUNC; |
916 | |
917 | /* Last element is marked by mult == 0 */ |
918 | struct suffix_mult { |
919 | char suffix[4]; |
920 | unsigned mult; |
921 | }; |
922 | extern const struct suffix_mult bkm_suffixes[]; |
923 | #define km_suffixes (bkm_suffixes + 1) |
924 | extern const struct suffix_mult cwbkMG_suffixes[]; |
925 | #define kMG_suffixes (cwbkMG_suffixes + 3) |
926 | |
927 | #include "xatonum.h" |
928 | /* Specialized: */ |
929 | |
930 | /* Using xatoi() instead of naive atoi() is not always convenient - |
931 | * in many places people want *non-negative* values, but store them |
932 | * in signed int. Therefore we need this one: |
933 | * dies if input is not in [0, INT_MAX] range. Also will reject '-0' etc. |
934 | * It should really be named xatoi_nonnegative (since it allows 0), |
935 | * but that would be too long. |
936 | */ |
937 | int xatoi_positive(const char *numstr) FAST_FUNC; |
938 | |
939 | /* Useful for reading port numbers */ |
940 | uint16_t xatou16(const char *numstr) FAST_FUNC; |
941 | |
942 | |
943 | /* These parse entries in /etc/passwd and /etc/group. This is desirable |
944 | * for BusyBox since we want to avoid using the glibc NSS stuff, which |
945 | * increases target size and is often not needed on embedded systems. */ |
946 | long xuname2uid(const char *name) FAST_FUNC; |
947 | long xgroup2gid(const char *name) FAST_FUNC; |
948 | /* wrapper: allows string to contain numeric uid or gid */ |
949 | unsigned long get_ug_id(const char *s, long FAST_FUNC (*xname2id)(const char *)) FAST_FUNC; |
950 | struct bb_uidgid_t { |
951 | uid_t uid; |
952 | gid_t gid; |
953 | }; |
954 | /* always sets uid and gid; returns 0 on failure */ |
955 | int get_uidgid(struct bb_uidgid_t*, const char*) FAST_FUNC; |
956 | /* always sets uid and gid; exits on failure */ |
957 | void xget_uidgid(struct bb_uidgid_t*, const char*) FAST_FUNC; |
958 | /* chown-like handling of "user[:[group]" */ |
959 | void parse_chown_usergroup_or_die(struct bb_uidgid_t *u, char *user_group) FAST_FUNC; |
960 | struct passwd* xgetpwnam(const char *name) FAST_FUNC; |
961 | struct group* xgetgrnam(const char *name) FAST_FUNC; |
962 | struct passwd* xgetpwuid(uid_t uid) FAST_FUNC; |
963 | struct group* xgetgrgid(gid_t gid) FAST_FUNC; |
964 | char* xuid2uname(uid_t uid) FAST_FUNC; |
965 | char* xgid2group(gid_t gid) FAST_FUNC; |
966 | char* uid2uname(uid_t uid) FAST_FUNC; |
967 | char* gid2group(gid_t gid) FAST_FUNC; |
968 | char* uid2uname_utoa(uid_t uid) FAST_FUNC; |
969 | char* gid2group_utoa(gid_t gid) FAST_FUNC; |
970 | /* versions which cache results (useful for ps, ls etc) */ |
971 | const char* get_cached_username(uid_t uid) FAST_FUNC; |
972 | const char* get_cached_groupname(gid_t gid) FAST_FUNC; |
973 | void clear_username_cache(void) FAST_FUNC; |
974 | /* internally usernames are saved in fixed-sized char[] buffers */ |
975 | enum { USERNAME_MAX_SIZE = 32 - sizeof(uid_t) }; |
976 | #if ENABLE_FEATURE_CHECK_NAMES |
977 | void die_if_bad_username(const char* name) FAST_FUNC; |
978 | #else |
979 | #define die_if_bad_username(name) ((void)(name)) |
980 | #endif |
981 | |
982 | #if ENABLE_FEATURE_UTMP |
983 | void FAST_FUNC write_new_utmp(pid_t pid, int new_type, const char *tty_name, const char *username, const char *hostname); |
984 | void FAST_FUNC update_utmp(pid_t pid, int new_type, const char *tty_name, const char *username, const char *hostname); |
985 | void FAST_FUNC update_utmp_DEAD_PROCESS(pid_t pid); |
986 | #else |
987 | # define write_new_utmp(pid, new_type, tty_name, username, hostname) ((void)0) |
988 | # define update_utmp(pid, new_type, tty_name, username, hostname) ((void)0) |
989 | # define update_utmp_DEAD_PROCESS(pid) ((void)0) |
990 | #endif |
991 | |
992 | |
993 | int file_is_executable(const char *name) FAST_FUNC; |
994 | char *find_executable(const char *filename, char **PATHp) FAST_FUNC; |
995 | int executable_exists(const char *filename) FAST_FUNC; |
996 | |
997 | /* BB_EXECxx always execs (it's not doing NOFORK/NOEXEC stuff), |
998 | * but it may exec busybox and call applet instead of searching PATH. |
999 | */ |
1000 | #if ENABLE_FEATURE_PREFER_APPLETS |
1001 | int BB_EXECVP(const char *file, char *const argv[]) FAST_FUNC; |
1002 | #define BB_EXECLP(prog,cmd,...) \ |
1003 | do { \ |
1004 | if (find_applet_by_name(prog) >= 0) \ |
1005 | execlp(bb_busybox_exec_path, cmd, __VA_ARGS__); \ |
1006 | execlp(prog, cmd, __VA_ARGS__); \ |
1007 | } while (0) |
1008 | #else |
1009 | #define BB_EXECVP(prog,cmd) execvp(prog,cmd) |
1010 | #define BB_EXECLP(prog,cmd,...) execlp(prog,cmd,__VA_ARGS__) |
1011 | #endif |
1012 | void BB_EXECVP_or_die(char **argv) NORETURN FAST_FUNC; |
1013 | void exec_prog_or_SHELL(char **argv) NORETURN FAST_FUNC; |
1014 | |
1015 | /* xvfork() can't be a _function_, return after vfork in child mangles stack |
1016 | * in the parent. It must be a macro. */ |
1017 | #define xvfork() \ |
1018 | ({ \ |
1019 | pid_t bb__xvfork_pid = vfork(); \ |
1020 | if (bb__xvfork_pid < 0) \ |
1021 | bb_perror_msg_and_die("vfork"); \ |
1022 | bb__xvfork_pid; \ |
1023 | }) |
1024 | #if BB_MMU |
1025 | pid_t xfork(void) FAST_FUNC; |
1026 | #endif |
1027 | void xvfork_parent_waits_and_exits(void) FAST_FUNC; |
1028 | |
1029 | /* NOMMU friendy fork+exec: */ |
1030 | pid_t spawn(char **argv) FAST_FUNC; |
1031 | pid_t xspawn(char **argv) FAST_FUNC; |
1032 | |
1033 | pid_t safe_waitpid(pid_t pid, int *wstat, int options) FAST_FUNC; |
1034 | pid_t wait_any_nohang(int *wstat) FAST_FUNC; |
1035 | /* wait4pid: unlike waitpid, waits ONLY for one process. |
1036 | * Returns sig + 0x180 if child is killed by signal. |
1037 | * It's safe to pass negative 'pids' from failed [v]fork - |
1038 | * wait4pid will return -1 (and will not clobber [v]fork's errno). |
1039 | * IOW: rc = wait4pid(spawn(argv)); |
1040 | * if (rc < 0) bb_perror_msg("%s", argv[0]); |
1041 | * if (rc > 0) bb_error_msg("exit code: %d", rc & 0xff); |
1042 | */ |
1043 | int wait4pid(pid_t pid) FAST_FUNC; |
1044 | int wait_for_exitstatus(pid_t pid) FAST_FUNC; |
1045 | /* Same as wait4pid(spawn(argv)), but with NOFORK/NOEXEC if configured: */ |
1046 | int spawn_and_wait(char **argv) FAST_FUNC; |
1047 | /* Does NOT check that applet is NOFORK, just blindly runs it */ |
1048 | int run_nofork_applet(int applet_no, char **argv) FAST_FUNC; |
1049 | |
1050 | /* Helpers for daemonization. |
1051 | * |
1052 | * bb_daemonize(flags) = daemonize, does not compile on NOMMU |
1053 | * |
1054 | * bb_daemonize_or_rexec(flags, argv) = daemonizes on MMU (and ignores argv), |
1055 | * rexec's itself on NOMMU with argv passed as command line. |
1056 | * Thus bb_daemonize_or_rexec may cause your <applet>_main() to be re-executed |
1057 | * from the start. (It will detect it and not reexec again second time). |
1058 | * You have to audit carefully that you don't do something twice as a result |
1059 | * (opening files/sockets, parsing config files etc...)! |
1060 | * |
1061 | * Both of the above will redirect fd 0,1,2 to /dev/null and drop ctty |
1062 | * (will do setsid()). |
1063 | * |
1064 | * fork_or_rexec(argv) = bare-bones fork on MMU, |
1065 | * "vfork + re-exec ourself" on NOMMU. No fd redirection, no setsid(). |
1066 | * On MMU ignores argv. |
1067 | * |
1068 | * Helper for network daemons in foreground mode: |
1069 | * |
1070 | * bb_sanitize_stdio() = make sure that fd 0,1,2 are opened by opening them |
1071 | * to /dev/null if they are not. |
1072 | */ |
1073 | enum { |
1074 | DAEMON_CHDIR_ROOT = 1, |
1075 | DAEMON_DEVNULL_STDIO = 2, |
1076 | DAEMON_CLOSE_EXTRA_FDS = 4, |
1077 | DAEMON_ONLY_SANITIZE = 8, /* internal use */ |
1078 | DAEMON_DOUBLE_FORK = 16, /* double fork to avoid controlling tty */ |
1079 | }; |
1080 | #if BB_MMU |
1081 | enum { re_execed = 0 }; |
1082 | # define fork_or_rexec(argv) xfork() |
1083 | # define bb_daemonize_or_rexec(flags, argv) bb_daemonize_or_rexec(flags) |
1084 | # define bb_daemonize(flags) bb_daemonize_or_rexec(flags, bogus) |
1085 | #else |
1086 | extern bool re_execed; |
1087 | /* Note: re_exec() and fork_or_rexec() do argv[0][0] |= 0x80 on NOMMU! |
1088 | * _Parent_ needs to undo it if it doesn't want to have argv[0] mangled. |
1089 | */ |
1090 | void re_exec(char **argv) NORETURN FAST_FUNC; |
1091 | pid_t fork_or_rexec(char **argv) FAST_FUNC; |
1092 | int BUG_fork_is_unavailable_on_nommu(void) FAST_FUNC; |
1093 | int BUG_daemon_is_unavailable_on_nommu(void) FAST_FUNC; |
1094 | void BUG_bb_daemonize_is_unavailable_on_nommu(void) FAST_FUNC; |
1095 | # define fork() BUG_fork_is_unavailable_on_nommu() |
1096 | # define xfork() BUG_fork_is_unavailable_on_nommu() |
1097 | # define daemon(a,b) BUG_daemon_is_unavailable_on_nommu() |
1098 | # define bb_daemonize(a) BUG_bb_daemonize_is_unavailable_on_nommu() |
1099 | #endif |
1100 | void bb_daemonize_or_rexec(int flags, char **argv) FAST_FUNC; |
1101 | void bb_sanitize_stdio(void) FAST_FUNC; |
1102 | /* Clear dangerous stuff, set PATH. Return 1 if was run by different user. */ |
1103 | int sanitize_env_if_suid(void) FAST_FUNC; |
1104 | |
1105 | |
1106 | char* single_argv(char **argv) FAST_FUNC; |
1107 | extern const char *const bb_argv_dash[]; /* "-", NULL */ |
1108 | extern const char *opt_complementary; |
1109 | #if ENABLE_LONG_OPTS || ENABLE_FEATURE_GETOPT_LONG |
1110 | #define No_argument "\0" |
1111 | #define Required_argument "\001" |
1112 | #define Optional_argument "\002" |
1113 | extern const char *applet_long_options; |
1114 | #endif |
1115 | extern uint32_t option_mask32; |
1116 | extern uint32_t getopt32(char **argv, const char *applet_opts, ...) FAST_FUNC; |
1117 | |
1118 | |
1119 | /* Having next pointer as a first member allows easy creation |
1120 | * of "llist-compatible" structs, and using llist_FOO functions |
1121 | * on them. |
1122 | */ |
1123 | typedef struct llist_t { |
1124 | struct llist_t *link; |
1125 | char *data; |
1126 | } llist_t; |
1127 | void llist_add_to(llist_t **old_head, void *data) FAST_FUNC; |
1128 | void llist_add_to_end(llist_t **list_head, void *data) FAST_FUNC; |
1129 | void *llist_pop(llist_t **elm) FAST_FUNC; |
1130 | void llist_unlink(llist_t **head, llist_t *elm) FAST_FUNC; |
1131 | void llist_free(llist_t *elm, void (*freeit)(void *data)) FAST_FUNC; |
1132 | llist_t *llist_rev(llist_t *list) FAST_FUNC; |
1133 | llist_t *llist_find_str(llist_t *first, const char *str) FAST_FUNC; |
1134 | /* BTW, surprisingly, changing API to |
1135 | * llist_t *llist_add_to(llist_t *old_head, void *data) |
1136 | * etc does not result in smaller code... */ |
1137 | |
1138 | /* start_stop_daemon and udhcpc are special - they want |
1139 | * to create pidfiles regardless of FEATURE_PIDFILE */ |
1140 | #if ENABLE_FEATURE_PIDFILE || defined(WANT_PIDFILE) |
1141 | /* True only if we created pidfile which is *file*, not /dev/null etc */ |
1142 | extern smallint wrote_pidfile; |
1143 | void write_pidfile(const char *path) FAST_FUNC; |
1144 | #define remove_pidfile(path) do { if (wrote_pidfile) unlink(path); } while (0) |
1145 | #else |
1146 | enum { wrote_pidfile = 0 }; |
1147 | #define write_pidfile(path) ((void)0) |
1148 | #define remove_pidfile(path) ((void)0) |
1149 | #endif |
1150 | |
1151 | enum { |
1152 | LOGMODE_NONE = 0, |
1153 | LOGMODE_STDIO = (1 << 0), |
1154 | LOGMODE_SYSLOG = (1 << 1) * ENABLE_FEATURE_SYSLOG, |
1155 | LOGMODE_BOTH = LOGMODE_SYSLOG + LOGMODE_STDIO, |
1156 | }; |
1157 | extern const char *msg_eol; |
1158 | extern smallint syslog_level; |
1159 | extern smallint logmode; |
1160 | extern uint8_t xfunc_error_retval; |
1161 | extern void (*die_func)(void); |
1162 | extern void xfunc_die(void) NORETURN FAST_FUNC; |
1163 | extern void bb_show_usage(void) NORETURN FAST_FUNC; |
1164 | extern void bb_error_msg(const char *s, ...) __attribute__ ((format (printf, 1, 2))) FAST_FUNC; |
1165 | extern void bb_error_msg_and_die(const char *s, ...) __attribute__ ((noreturn, format (printf, 1, 2))) FAST_FUNC; |
1166 | extern void bb_perror_msg(const char *s, ...) __attribute__ ((format (printf, 1, 2))) FAST_FUNC; |
1167 | extern void bb_simple_perror_msg(const char *s) FAST_FUNC; |
1168 | extern void bb_perror_msg_and_die(const char *s, ...) __attribute__ ((noreturn, format (printf, 1, 2))) FAST_FUNC; |
1169 | extern void bb_simple_perror_msg_and_die(const char *s) NORETURN FAST_FUNC; |
1170 | extern void bb_herror_msg(const char *s, ...) __attribute__ ((format (printf, 1, 2))) FAST_FUNC; |
1171 | extern void bb_herror_msg_and_die(const char *s, ...) __attribute__ ((noreturn, format (printf, 1, 2))) FAST_FUNC; |
1172 | extern void bb_perror_nomsg_and_die(void) NORETURN FAST_FUNC; |
1173 | extern void bb_perror_nomsg(void) FAST_FUNC; |
1174 | extern void bb_verror_msg(const char *s, va_list p, const char *strerr) FAST_FUNC; |
1175 | extern void bb_logenv_override(void) FAST_FUNC; |
1176 | |
1177 | /* We need to export XXX_main from libbusybox |
1178 | * only if we build "individual" binaries |
1179 | */ |
1180 | #if ENABLE_FEATURE_INDIVIDUAL |
1181 | #define MAIN_EXTERNALLY_VISIBLE EXTERNALLY_VISIBLE |
1182 | #else |
1183 | #define MAIN_EXTERNALLY_VISIBLE |
1184 | #endif |
1185 | |
1186 | |
1187 | /* Applets which are useful from another applets */ |
1188 | int bb_cat(char** argv); |
1189 | /* If shell needs them, they exist even if not enabled as applets */ |
1190 | int echo_main(int argc, char** argv) IF_ECHO(MAIN_EXTERNALLY_VISIBLE); |
1191 | int printf_main(int argc, char **argv) IF_PRINTF(MAIN_EXTERNALLY_VISIBLE); |
1192 | int test_main(int argc, char **argv) |
1193 | #if ENABLE_TEST || ENABLE_TEST1 || ENABLE_TEST2 |
1194 | MAIN_EXTERNALLY_VISIBLE |
1195 | #endif |
1196 | ; |
1197 | int kill_main(int argc, char **argv) |
1198 | #if ENABLE_KILL || ENABLE_KILLALL || ENABLE_KILLALL5 |
1199 | MAIN_EXTERNALLY_VISIBLE |
1200 | #endif |
1201 | ; |
1202 | /* Similar, but used by chgrp, not shell */ |
1203 | int chown_main(int argc, char **argv) IF_CHOWN(MAIN_EXTERNALLY_VISIBLE); |
1204 | /* Used by ftpd */ |
1205 | int ls_main(int argc, char **argv) IF_LS(MAIN_EXTERNALLY_VISIBLE); |
1206 | /* Don't need IF_xxx() guard for these */ |
1207 | int gunzip_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; |
1208 | int bunzip2_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; |
1209 | |
1210 | #if ENABLE_ROUTE |
1211 | void bb_displayroutes(int noresolve, int netstatfmt) FAST_FUNC; |
1212 | #endif |
1213 | |
1214 | |
1215 | /* Networking */ |
1216 | /* This structure defines protocol families and their handlers. */ |
1217 | struct aftype { |
1218 | const char *name; |
1219 | const char *title; |
1220 | int af; |
1221 | int alen; |
1222 | char* FAST_FUNC (*print)(unsigned char *); |
1223 | const char* FAST_FUNC (*sprint)(struct sockaddr *, int numeric); |
1224 | int FAST_FUNC (*input)(/*int type,*/ const char *bufp, struct sockaddr *); |
1225 | void FAST_FUNC (*herror)(char *text); |
1226 | int FAST_FUNC (*rprint)(int options); |
1227 | int FAST_FUNC (*rinput)(int typ, int ext, char **argv); |
1228 | /* may modify src */ |
1229 | int FAST_FUNC (*getmask)(char *src, struct sockaddr *mask, char *name); |
1230 | }; |
1231 | /* This structure defines hardware protocols and their handlers. */ |
1232 | struct hwtype { |
1233 | const char *name; |
1234 | const char *title; |
1235 | int type; |
1236 | int alen; |
1237 | char* FAST_FUNC (*print)(unsigned char *); |
1238 | int FAST_FUNC (*input)(const char *, struct sockaddr *); |
1239 | int FAST_FUNC (*activate)(int fd); |
1240 | int suppress_null_addr; |
1241 | }; |
1242 | extern smallint interface_opt_a; |
1243 | int display_interfaces(char *ifname) FAST_FUNC; |
1244 | int in_ether(const char *bufp, struct sockaddr *sap) FAST_FUNC; |
1245 | #if ENABLE_FEATURE_HWIB |
1246 | int in_ib(const char *bufp, struct sockaddr *sap) FAST_FUNC; |
1247 | #else |
1248 | #define in_ib(a, b) 1 /* fail */ |
1249 | #endif |
1250 | const struct aftype *get_aftype(const char *name) FAST_FUNC; |
1251 | const struct hwtype *get_hwtype(const char *name) FAST_FUNC; |
1252 | const struct hwtype *get_hwntype(int type) FAST_FUNC; |
1253 | |
1254 | |
1255 | #ifndef BUILD_INDIVIDUAL |
1256 | extern int find_applet_by_name(const char *name) FAST_FUNC; |
1257 | extern void run_applet_no_and_exit(int a, char **argv) NORETURN FAST_FUNC; |
1258 | #endif |
1259 | |
1260 | #ifdef HAVE_MNTENT_H |
1261 | extern int match_fstype(const struct mntent *mt, const char *fstypes) FAST_FUNC; |
1262 | extern struct mntent *find_mount_point(const char *name, int subdir_too) FAST_FUNC; |
1263 | #endif |
1264 | extern void erase_mtab(const char * name) FAST_FUNC; |
1265 | extern unsigned int tty_baud_to_value(speed_t speed) FAST_FUNC; |
1266 | extern speed_t tty_value_to_baud(unsigned int value) FAST_FUNC; |
1267 | #if ENABLE_DESKTOP |
1268 | extern void bb_warn_ignoring_args(char *arg) FAST_FUNC; |
1269 | #else |
1270 | # define bb_warn_ignoring_args(arg) ((void)0) |
1271 | #endif |
1272 | |
1273 | extern int get_linux_version_code(void) FAST_FUNC; |
1274 | |
1275 | extern char *query_loop(const char *device) FAST_FUNC; |
1276 | extern int del_loop(const char *device) FAST_FUNC; |
1277 | /* If *devname is not NULL, use that name, otherwise try to find free one, |
1278 | * malloc and return it in *devname. |
1279 | * return value: 1: read-only loopdev was setup, 0: rw, < 0: error */ |
1280 | extern int set_loop(char **devname, const char *file, unsigned long long offset, int ro) FAST_FUNC; |
1281 | |
1282 | /* Like bb_ask below, but asks on stdin with no timeout. */ |
1283 | char *bb_ask_stdin(const char * prompt) FAST_FUNC; |
1284 | //TODO: pass buf pointer or return allocated buf (avoid statics)? |
1285 | char *bb_ask(const int fd, int timeout, const char * prompt) FAST_FUNC; |
1286 | int bb_ask_confirmation(void) FAST_FUNC; |
1287 | |
1288 | /* Returns -1 if input is invalid. current_mode is a base for e.g. "u+rw" */ |
1289 | int bb_parse_mode(const char* s, unsigned cur_mode) FAST_FUNC; |
1290 | |
1291 | /* |
1292 | * Config file parser |
1293 | */ |
1294 | enum { |
1295 | PARSE_COLLAPSE = 0x00010000, // treat consecutive delimiters as one |
1296 | PARSE_TRIM = 0x00020000, // trim leading and trailing delimiters |
1297 | // TODO: COLLAPSE and TRIM seem to always go in pair |
1298 | PARSE_GREEDY = 0x00040000, // last token takes entire remainder of the line |
1299 | PARSE_MIN_DIE = 0x00100000, // die if < min tokens found |
1300 | // keep a copy of current line |
1301 | PARSE_KEEP_COPY = 0x00200000 * ENABLE_FEATURE_CROND_D, |
1302 | PARSE_EOL_COMMENTS = 0x00400000, // comments are recognized even if they aren't the first char |
1303 | // NORMAL is: |
1304 | // * remove leading and trailing delimiters and collapse |
1305 | // multiple delimiters into one |
1306 | // * warn and continue if less than mintokens delimiters found |
1307 | // * grab everything into last token |
1308 | // * comments are recognized even if they aren't the first char |
1309 | PARSE_NORMAL = PARSE_COLLAPSE | PARSE_TRIM | PARSE_GREEDY | PARSE_EOL_COMMENTS, |
1310 | }; |
1311 | typedef struct parser_t { |
1312 | FILE *fp; |
1313 | char *data; |
1314 | char *line, *nline; |
1315 | size_t line_alloc, nline_alloc; |
1316 | int lineno; |
1317 | } parser_t; |
1318 | parser_t* config_open(const char *filename) FAST_FUNC; |
1319 | parser_t* config_open2(const char *filename, FILE* FAST_FUNC (*fopen_func)(const char *path)) FAST_FUNC; |
1320 | /* delims[0] is a comment char (use '\0' to disable), the rest are token delimiters */ |
1321 | int config_read(parser_t *parser, char **tokens, unsigned flags, const char *delims) FAST_FUNC; |
1322 | #define config_read(parser, tokens, max, min, str, flags) \ |
1323 | config_read(parser, tokens, ((flags) | (((min) & 0xFF) << 8) | ((max) & 0xFF)), str) |
1324 | void config_close(parser_t *parser) FAST_FUNC; |
1325 | |
1326 | /* Concatenate path and filename to new allocated buffer. |
1327 | * Add "/" only as needed (no duplicate "//" are produced). |
1328 | * If path is NULL, it is assumed to be "/". |
1329 | * filename should not be NULL. */ |
1330 | char *concat_path_file(const char *path, const char *filename) FAST_FUNC; |
1331 | /* Returns NULL on . and .. */ |
1332 | char *concat_subpath_file(const char *path, const char *filename) FAST_FUNC; |
1333 | |
1334 | |
1335 | int bb_make_directory(char *path, long mode, int flags) FAST_FUNC; |
1336 | |
1337 | int get_signum(const char *name) FAST_FUNC; |
1338 | const char *get_signame(int number) FAST_FUNC; |
1339 | void print_signames(void) FAST_FUNC; |
1340 | |
1341 | char *bb_simplify_path(const char *path) FAST_FUNC; |
1342 | /* Returns ptr to NUL */ |
1343 | char *bb_simplify_abs_path_inplace(char *path) FAST_FUNC; |
1344 | |
1345 | #ifndef LOGIN_FAIL_DELAY |
1346 | #define LOGIN_FAIL_DELAY 3 |
1347 | #endif |
1348 | extern void bb_do_delay(int seconds) FAST_FUNC; |
1349 | extern void change_identity(const struct passwd *pw) FAST_FUNC; |
1350 | extern void run_shell(const char *shell, int loginshell, const char **args) NORETURN FAST_FUNC; |
1351 | |
1352 | /* Returns $SHELL, getpwuid(getuid())->pw_shell, or DEFAULT_SHELL. |
1353 | * Note that getpwuid result might need xstrdup'ing |
1354 | * if there is a possibility of intervening getpwxxx() calls. |
1355 | */ |
1356 | const char *get_shell_name(void) FAST_FUNC; |
1357 | |
1358 | #if ENABLE_SELINUX |
1359 | extern void renew_current_security_context(void) FAST_FUNC; |
1360 | extern void set_current_security_context(security_context_t sid) FAST_FUNC; |
1361 | extern context_t set_security_context_component(security_context_t cur_context, |
1362 | char *user, char *role, char *type, char *range) FAST_FUNC; |
1363 | extern void setfscreatecon_or_die(security_context_t scontext) FAST_FUNC; |
1364 | extern void selinux_preserve_fcontext(int fdesc) FAST_FUNC; |
1365 | #else |
1366 | #define selinux_preserve_fcontext(fdesc) ((void)0) |
1367 | #endif |
1368 | extern void selinux_or_die(void) FAST_FUNC; |
1369 | |
1370 | |
1371 | /* setup_environment: |
1372 | * if chdir pw->pw_dir: ok: else if to_tmp == 1: goto /tmp else: goto / or die |
1373 | * if clear_env = 1: cd(pw->pw_dir), clear environment, then set |
1374 | * TERM=(old value) |
1375 | * USER=pw->pw_name, LOGNAME=pw->pw_name |
1376 | * PATH=bb_default_[root_]path |
1377 | * HOME=pw->pw_dir |
1378 | * SHELL=shell |
1379 | * else if change_env = 1: |
1380 | * if not root (if pw->pw_uid != 0): |
1381 | * USER=pw->pw_name, LOGNAME=pw->pw_name |
1382 | * HOME=pw->pw_dir |
1383 | * SHELL=shell |
1384 | * else does nothing |
1385 | */ |
1386 | #define SETUP_ENV_CHANGEENV (1 << 0) |
1387 | #define SETUP_ENV_CLEARENV (1 << 1) |
1388 | #define SETUP_ENV_TO_TMP (1 << 2) |
1389 | #define SETUP_ENV_NO_CHDIR (1 << 4) |
1390 | void setup_environment(const char *shell, int flags, const struct passwd *pw) FAST_FUNC; |
1391 | void nuke_str(char *str) FAST_FUNC; |
1392 | int check_password(const struct passwd *pw, const char *plaintext) FAST_FUNC; |
1393 | int ask_and_check_password_extended(const struct passwd *pw, int timeout, const char *prompt) FAST_FUNC; |
1394 | int ask_and_check_password(const struct passwd *pw) FAST_FUNC; |
1395 | /* Returns a malloced string */ |
1396 | #if !ENABLE_USE_BB_CRYPT |
1397 | #define pw_encrypt(clear, salt, cleanup) pw_encrypt(clear, salt) |
1398 | #endif |
1399 | extern char *pw_encrypt(const char *clear, const char *salt, int cleanup) FAST_FUNC; |
1400 | extern int obscure(const char *old, const char *newval, const struct passwd *pwdp) FAST_FUNC; |
1401 | /* |
1402 | * rnd is additional random input. New one is returned. |
1403 | * Useful if you call crypt_make_salt many times in a row: |
1404 | * rnd = crypt_make_salt(buf1, 4, 0); |
1405 | * rnd = crypt_make_salt(buf2, 4, rnd); |
1406 | * rnd = crypt_make_salt(buf3, 4, rnd); |
1407 | * (otherwise we risk having same salt generated) |
1408 | */ |
1409 | extern int crypt_make_salt(char *p, int cnt /*, int rnd*/) FAST_FUNC; |
1410 | /* "$N$" + sha_salt_16_bytes + NUL */ |
1411 | #define MAX_PW_SALT_LEN (3 + 16 + 1) |
1412 | extern char* crypt_make_pw_salt(char p[MAX_PW_SALT_LEN], const char *algo) FAST_FUNC; |
1413 | |
1414 | |
1415 | /* Returns number of lines changed, or -1 on error */ |
1416 | #if !(ENABLE_FEATURE_ADDUSER_TO_GROUP || ENABLE_FEATURE_DEL_USER_FROM_GROUP) |
1417 | #define update_passwd(filename, username, data, member) \ |
1418 | update_passwd(filename, username, data) |
1419 | #endif |
1420 | extern int update_passwd(const char *filename, |
1421 | const char *username, |
1422 | const char *data, |
1423 | const char *member) FAST_FUNC; |
1424 | |
1425 | int index_in_str_array(const char *const string_array[], const char *key) FAST_FUNC; |
1426 | int index_in_strings(const char *strings, const char *key) FAST_FUNC; |
1427 | int index_in_substr_array(const char *const string_array[], const char *key) FAST_FUNC; |
1428 | int index_in_substrings(const char *strings, const char *key) FAST_FUNC; |
1429 | const char *nth_string(const char *strings, int n) FAST_FUNC; |
1430 | |
1431 | extern void print_login_issue(const char *issue_file, const char *tty) FAST_FUNC; |
1432 | extern void print_login_prompt(void) FAST_FUNC; |
1433 | |
1434 | char *xmalloc_ttyname(int fd) FAST_FUNC RETURNS_MALLOC; |
1435 | /* NB: typically you want to pass fd 0, not 1. Think 'applet | grep something' */ |
1436 | int get_terminal_width_height(int fd, unsigned *width, unsigned *height) FAST_FUNC; |
1437 | int get_terminal_width(int fd) FAST_FUNC; |
1438 | |
1439 | int tcsetattr_stdin_TCSANOW(const struct termios *tp) FAST_FUNC; |
1440 | |
1441 | /* NB: "unsigned request" is crucial! "int request" will break some arches! */ |
1442 | int ioctl_or_perror(int fd, unsigned request, void *argp, const char *fmt,...) __attribute__ ((format (printf, 4, 5))) FAST_FUNC; |
1443 | int ioctl_or_perror_and_die(int fd, unsigned request, void *argp, const char *fmt,...) __attribute__ ((format (printf, 4, 5))) FAST_FUNC; |
1444 | #if ENABLE_IOCTL_HEX2STR_ERROR |
1445 | int bb_ioctl_or_warn(int fd, unsigned request, void *argp, const char *ioctl_name) FAST_FUNC; |
1446 | int bb_xioctl(int fd, unsigned request, void *argp, const char *ioctl_name) FAST_FUNC; |
1447 | #define ioctl_or_warn(fd,request,argp) bb_ioctl_or_warn(fd,request,argp,#request) |
1448 | #define xioctl(fd,request,argp) bb_xioctl(fd,request,argp,#request) |
1449 | #else |
1450 | int bb_ioctl_or_warn(int fd, unsigned request, void *argp) FAST_FUNC; |
1451 | int bb_xioctl(int fd, unsigned request, void *argp) FAST_FUNC; |
1452 | #define ioctl_or_warn(fd,request,argp) bb_ioctl_or_warn(fd,request,argp) |
1453 | #define xioctl(fd,request,argp) bb_xioctl(fd,request,argp) |
1454 | #endif |
1455 | |
1456 | char *is_in_ino_dev_hashtable(const struct stat *statbuf) FAST_FUNC; |
1457 | void add_to_ino_dev_hashtable(const struct stat *statbuf, const char *name) FAST_FUNC; |
1458 | void reset_ino_dev_hashtable(void) FAST_FUNC; |
1459 | #ifdef __GLIBC__ |
1460 | /* At least glibc has horrendously large inline for this, so wrap it */ |
1461 | unsigned long long bb_makedev(unsigned major, unsigned minor) FAST_FUNC; |
1462 | #undef makedev |
1463 | #define makedev(a,b) bb_makedev(a,b) |
1464 | #endif |
1465 | |
1466 | |
1467 | /* "Keycodes" that report an escape sequence. |
1468 | * We use something which fits into signed char, |
1469 | * yet doesn't represent any valid Unicode character. |
1470 | * Also, -1 is reserved for error indication and we don't use it. */ |
1471 | enum { |
1472 | KEYCODE_UP = -2, |
1473 | KEYCODE_DOWN = -3, |
1474 | KEYCODE_RIGHT = -4, |
1475 | KEYCODE_LEFT = -5, |
1476 | KEYCODE_HOME = -6, |
1477 | KEYCODE_END = -7, |
1478 | KEYCODE_INSERT = -8, |
1479 | KEYCODE_DELETE = -9, |
1480 | KEYCODE_PAGEUP = -10, |
1481 | KEYCODE_PAGEDOWN = -11, |
1482 | KEYCODE_BACKSPACE = -12, /* Used only if Alt/Ctrl/Shifted */ |
1483 | KEYCODE_D = -13, /* Used only if Alted */ |
1484 | #if 0 |
1485 | KEYCODE_FUN1 = , |
1486 | KEYCODE_FUN2 = , |
1487 | KEYCODE_FUN3 = , |
1488 | KEYCODE_FUN4 = , |
1489 | KEYCODE_FUN5 = , |
1490 | KEYCODE_FUN6 = , |
1491 | KEYCODE_FUN7 = , |
1492 | KEYCODE_FUN8 = , |
1493 | KEYCODE_FUN9 = , |
1494 | KEYCODE_FUN10 = , |
1495 | KEYCODE_FUN11 = , |
1496 | KEYCODE_FUN12 = , |
1497 | #endif |
1498 | /* ^^^^^ Be sure that last defined value is small enough. |
1499 | * Current read_key() code allows going up to -32 (0xfff..fffe0). |
1500 | * This gives three upper bits in LSB to play with: |
1501 | * KEYCODE_foo values are 0xfff..fffXX, lowest XX bits are: scavvvvv, |
1502 | * s=0 if SHIFT, c=0 if CTRL, a=0 if ALT, |
1503 | * vvvvv bits are the same for same key regardless of "shift bits". |
1504 | */ |
1505 | //KEYCODE_SHIFT_... = KEYCODE_... & ~0x80, |
1506 | KEYCODE_CTRL_RIGHT = KEYCODE_RIGHT & ~0x40, |
1507 | KEYCODE_CTRL_LEFT = KEYCODE_LEFT & ~0x40, |
1508 | KEYCODE_ALT_RIGHT = KEYCODE_RIGHT & ~0x20, |
1509 | KEYCODE_ALT_LEFT = KEYCODE_LEFT & ~0x20, |
1510 | KEYCODE_ALT_BACKSPACE = KEYCODE_BACKSPACE & ~0x20, |
1511 | KEYCODE_ALT_D = KEYCODE_D & ~0x20, |
1512 | |
1513 | KEYCODE_CURSOR_POS = -0x100, /* 0xfff..fff00 */ |
1514 | /* How long is the longest ESC sequence we know? |
1515 | * We want it big enough to be able to contain |
1516 | * cursor position sequence "ESC [ 9999 ; 9999 R" |
1517 | */ |
1518 | KEYCODE_BUFFER_SIZE = 16 |
1519 | }; |
1520 | /* Note: fd may be in blocking or non-blocking mode, both make sense. |
1521 | * For one, less uses non-blocking mode. |
1522 | * Only the first read syscall inside read_key may block indefinitely |
1523 | * (unless fd is in non-blocking mode), |
1524 | * subsequent reads will time out after a few milliseconds. |
1525 | * Return of -1 means EOF or error (errno == 0 on EOF). |
1526 | * buffer[0] is used as a counter of buffered chars and must be 0 |
1527 | * on first call. |
1528 | * timeout: |
1529 | * -2: do not poll for input; |
1530 | * -1: poll(-1) (i.e. block); |
1531 | * >=0: poll for TIMEOUT milliseconds, return -1/EAGAIN on timeout |
1532 | */ |
1533 | int64_t read_key(int fd, char *buffer, int timeout) FAST_FUNC; |
1534 | void read_key_ungets(char *buffer, const char *str, unsigned len) FAST_FUNC; |
1535 | |
1536 | |
1537 | #if ENABLE_FEATURE_EDITING |
1538 | /* It's NOT just ENABLEd or disabled. It's a number: */ |
1539 | # if defined CONFIG_FEATURE_EDITING_HISTORY && CONFIG_FEATURE_EDITING_HISTORY > 0 |
1540 | # define MAX_HISTORY (CONFIG_FEATURE_EDITING_HISTORY + 0) |
1541 | unsigned size_from_HISTFILESIZE(const char *hp) FAST_FUNC; |
1542 | # else |
1543 | # define MAX_HISTORY 0 |
1544 | # endif |
1545 | typedef struct line_input_t { |
1546 | int flags; |
1547 | const char *path_lookup; |
1548 | # if MAX_HISTORY |
1549 | int cnt_history; |
1550 | int cur_history; |
1551 | int max_history; /* must never be <= 0 */ |
1552 | # if ENABLE_FEATURE_EDITING_SAVEHISTORY |
1553 | /* meaning of this field depends on FEATURE_EDITING_SAVE_ON_EXIT: |
1554 | * if !FEATURE_EDITING_SAVE_ON_EXIT: "how many lines are |
1555 | * in on-disk history" |
1556 | * if FEATURE_EDITING_SAVE_ON_EXIT: "how many in-memory lines are |
1557 | * also in on-disk history (and thus need to be skipped on save)" |
1558 | */ |
1559 | unsigned cnt_history_in_file; |
1560 | const char *hist_file; |
1561 | # endif |
1562 | char *history[MAX_HISTORY + 1]; |
1563 | # endif |
1564 | } line_input_t; |
1565 | enum { |
1566 | DO_HISTORY = 1 * (MAX_HISTORY > 0), |
1567 | TAB_COMPLETION = 2 * ENABLE_FEATURE_TAB_COMPLETION, |
1568 | USERNAME_COMPLETION = 4 * ENABLE_FEATURE_USERNAME_COMPLETION, |
1569 | VI_MODE = 8 * ENABLE_FEATURE_EDITING_VI, |
1570 | WITH_PATH_LOOKUP = 0x10, |
1571 | FOR_SHELL = DO_HISTORY | TAB_COMPLETION | USERNAME_COMPLETION, |
1572 | }; |
1573 | line_input_t *new_line_input_t(int flags) FAST_FUNC; |
1574 | /* So far static: void free_line_input_t(line_input_t *n) FAST_FUNC; */ |
1575 | /* |
1576 | * maxsize must be >= 2. |
1577 | * Returns: |
1578 | * -1 on read errors or EOF, or on bare Ctrl-D, |
1579 | * 0 on ctrl-C (the line entered is still returned in 'command'), |
1580 | * >0 length of input string, including terminating '\n' |
1581 | */ |
1582 | int read_line_input(line_input_t *st, const char *prompt, char *command, int maxsize, int timeout) FAST_FUNC; |
1583 | void show_history(const line_input_t *st) FAST_FUNC; |
1584 | # if ENABLE_FEATURE_EDITING_SAVE_ON_EXIT |
1585 | void save_history(line_input_t *st); |
1586 | # endif |
1587 | #else |
1588 | #define MAX_HISTORY 0 |
1589 | int read_line_input(const char* prompt, char* command, int maxsize) FAST_FUNC; |
1590 | #define read_line_input(state, prompt, command, maxsize, timeout) \ |
1591 | read_line_input(prompt, command, maxsize) |
1592 | #endif |
1593 | |
1594 | |
1595 | #ifndef COMM_LEN |
1596 | # ifdef TASK_COMM_LEN |
1597 | enum { COMM_LEN = TASK_COMM_LEN }; |
1598 | # else |
1599 | /* synchronize with sizeof(task_struct.comm) in /usr/include/linux/sched.h */ |
1600 | enum { COMM_LEN = 16 }; |
1601 | # endif |
1602 | #endif |
1603 | |
1604 | struct smaprec { |
1605 | unsigned long mapped_rw; |
1606 | unsigned long mapped_ro; |
1607 | unsigned long shared_clean; |
1608 | unsigned long shared_dirty; |
1609 | unsigned long private_clean; |
1610 | unsigned long private_dirty; |
1611 | unsigned long stack; |
1612 | unsigned long smap_pss, smap_swap; |
1613 | unsigned long smap_size; |
1614 | unsigned long smap_start; |
1615 | char smap_mode[5]; |
1616 | char *smap_name; |
1617 | }; |
1618 | |
1619 | #if !ENABLE_PMAP |
1620 | #define procps_read_smaps(pid, total, cb, data) \ |
1621 | procps_read_smaps(pid, total) |
1622 | #endif |
1623 | int FAST_FUNC procps_read_smaps(pid_t pid, struct smaprec *total, |
1624 | void (*cb)(struct smaprec *, void *), void *data); |
1625 | |
1626 | typedef struct procps_status_t { |
1627 | DIR *dir; |
1628 | IF_FEATURE_SHOW_THREADS(DIR *task_dir;) |
1629 | uint8_t shift_pages_to_bytes; |
1630 | uint8_t shift_pages_to_kb; |
1631 | /* Fields are set to 0/NULL if failed to determine (or not requested) */ |
1632 | uint16_t argv_len; |
1633 | char *argv0; |
1634 | char *exe; |
1635 | IF_SELINUX(char *context;) |
1636 | IF_FEATURE_SHOW_THREADS(unsigned main_thread_pid;) |
1637 | /* Everything below must contain no ptrs to malloc'ed data: |
1638 | * it is memset(0) for each process in procps_scan() */ |
1639 | unsigned long vsz, rss; /* we round it to kbytes */ |
1640 | unsigned long stime, utime; |
1641 | unsigned long start_time; |
1642 | unsigned pid; |
1643 | unsigned ppid; |
1644 | unsigned pgid; |
1645 | unsigned sid; |
1646 | unsigned uid; |
1647 | unsigned gid; |
1648 | #if ENABLE_FEATURE_PS_ADDITIONAL_COLUMNS |
1649 | unsigned ruid; |
1650 | unsigned rgid; |
1651 | int niceness; |
1652 | #endif |
1653 | unsigned tty_major,tty_minor; |
1654 | #if ENABLE_FEATURE_TOPMEM |
1655 | struct smaprec smaps; |
1656 | #endif |
1657 | char state[4]; |
1658 | /* basename of executable in exec(2), read from /proc/N/stat |
1659 | * (if executable is symlink or script, it is NOT replaced |
1660 | * by link target or interpreter name) */ |
1661 | char comm[COMM_LEN]; |
1662 | /* user/group? - use passwd/group parsing functions */ |
1663 | #if ENABLE_FEATURE_TOP_SMP_PROCESS |
1664 | int last_seen_on_cpu; |
1665 | #endif |
1666 | } procps_status_t; |
1667 | /* flag bits for procps_scan(xx, flags) calls */ |
1668 | enum { |
1669 | PSSCAN_PID = 1 << 0, |
1670 | PSSCAN_PPID = 1 << 1, |
1671 | PSSCAN_PGID = 1 << 2, |
1672 | PSSCAN_SID = 1 << 3, |
1673 | PSSCAN_UIDGID = 1 << 4, |
1674 | PSSCAN_COMM = 1 << 5, |
1675 | /* PSSCAN_CMD = 1 << 6, - use read_cmdline instead */ |
1676 | PSSCAN_ARGV0 = 1 << 7, |
1677 | PSSCAN_EXE = 1 << 8, |
1678 | PSSCAN_STATE = 1 << 9, |
1679 | PSSCAN_VSZ = 1 << 10, |
1680 | PSSCAN_RSS = 1 << 11, |
1681 | PSSCAN_STIME = 1 << 12, |
1682 | PSSCAN_UTIME = 1 << 13, |
1683 | PSSCAN_TTY = 1 << 14, |
1684 | PSSCAN_SMAPS = (1 << 15) * ENABLE_FEATURE_TOPMEM, |
1685 | /* NB: used by find_pid_by_name(). Any applet using it |
1686 | * needs to be mentioned here. */ |
1687 | PSSCAN_ARGVN = (1 << 16) * (ENABLE_KILLALL |
1688 | || ENABLE_PGREP || ENABLE_PKILL |
1689 | || ENABLE_PIDOF |
1690 | || ENABLE_SESTATUS |
1691 | ), |
1692 | PSSCAN_CONTEXT = (1 << 17) * ENABLE_SELINUX, |
1693 | PSSCAN_START_TIME = 1 << 18, |
1694 | PSSCAN_CPU = (1 << 19) * ENABLE_FEATURE_TOP_SMP_PROCESS, |
1695 | PSSCAN_NICE = (1 << 20) * ENABLE_FEATURE_PS_ADDITIONAL_COLUMNS, |
1696 | PSSCAN_RUIDGID = (1 << 21) * ENABLE_FEATURE_PS_ADDITIONAL_COLUMNS, |
1697 | PSSCAN_TASKS = (1 << 22) * ENABLE_FEATURE_SHOW_THREADS, |
1698 | }; |
1699 | //procps_status_t* alloc_procps_scan(void) FAST_FUNC; |
1700 | void free_procps_scan(procps_status_t* sp) FAST_FUNC; |
1701 | procps_status_t* procps_scan(procps_status_t* sp, int flags) FAST_FUNC; |
1702 | /* Format cmdline (up to col chars) into char buf[size] */ |
1703 | /* Puts [comm] if cmdline is empty (-> process is a kernel thread) */ |
1704 | void read_cmdline(char *buf, int size, unsigned pid, const char *comm) FAST_FUNC; |
1705 | pid_t *find_pid_by_name(const char* procName) FAST_FUNC; |
1706 | pid_t *pidlist_reverse(pid_t *pidList) FAST_FUNC; |
1707 | int starts_with_cpu(const char *str) FAST_FUNC; |
1708 | unsigned get_cpu_count(void) FAST_FUNC; |
1709 | |
1710 | |
1711 | /* Use strict=1 if you process input from untrusted source: |
1712 | * it will return NULL on invalid %xx (bad hex chars) |
1713 | * and str + 1 if decoded char is / or NUL. |
1714 | * In non-strict mode, it always succeeds (returns str), |
1715 | * and also it additionally decoded '+' to space. |
1716 | */ |
1717 | char *percent_decode_in_place(char *str, int strict) FAST_FUNC; |
1718 | |
1719 | |
1720 | extern const char bb_uuenc_tbl_base64[] ALIGN1; |
1721 | extern const char bb_uuenc_tbl_std[] ALIGN1; |
1722 | void bb_uuencode(char *store, const void *s, int length, const char *tbl) FAST_FUNC; |
1723 | enum { |
1724 | BASE64_FLAG_UU_STOP = 0x100, |
1725 | /* Sign-extends to a value which never matches fgetc result: */ |
1726 | BASE64_FLAG_NO_STOP_CHAR = 0x80, |
1727 | }; |
1728 | const char *decode_base64(char **pp_dst, const char *src) FAST_FUNC; |
1729 | void read_base64(FILE *src_stream, FILE *dst_stream, int flags) FAST_FUNC; |
1730 | |
1731 | typedef struct md5_ctx_t { |
1732 | uint8_t wbuffer[64]; /* always correctly aligned for uint64_t */ |
1733 | void (*process_block)(struct md5_ctx_t*) FAST_FUNC; |
1734 | uint64_t total64; /* must be directly before hash[] */ |
1735 | uint32_t hash[8]; /* 4 elements for md5, 5 for sha1, 8 for sha256 */ |
1736 | } md5_ctx_t; |
1737 | typedef struct md5_ctx_t sha1_ctx_t; |
1738 | typedef struct md5_ctx_t sha256_ctx_t; |
1739 | typedef struct sha512_ctx_t { |
1740 | uint64_t total64[2]; /* must be directly before hash[] */ |
1741 | uint64_t hash[8]; |
1742 | uint8_t wbuffer[128]; /* always correctly aligned for uint64_t */ |
1743 | } sha512_ctx_t; |
1744 | typedef struct sha3_ctx_t { |
1745 | uint64_t state[25]; |
1746 | unsigned bytes_queued; |
1747 | unsigned input_block_bytes; |
1748 | } sha3_ctx_t; |
1749 | void md5_begin(md5_ctx_t *ctx) FAST_FUNC; |
1750 | void md5_hash(md5_ctx_t *ctx, const void *buffer, size_t len) FAST_FUNC; |
1751 | void md5_end(md5_ctx_t *ctx, void *resbuf) FAST_FUNC; |
1752 | void sha1_begin(sha1_ctx_t *ctx) FAST_FUNC; |
1753 | #define sha1_hash md5_hash |
1754 | void sha1_end(sha1_ctx_t *ctx, void *resbuf) FAST_FUNC; |
1755 | void sha256_begin(sha256_ctx_t *ctx) FAST_FUNC; |
1756 | #define sha256_hash md5_hash |
1757 | #define sha256_end sha1_end |
1758 | void sha512_begin(sha512_ctx_t *ctx) FAST_FUNC; |
1759 | void sha512_hash(sha512_ctx_t *ctx, const void *buffer, size_t len) FAST_FUNC; |
1760 | void sha512_end(sha512_ctx_t *ctx, void *resbuf) FAST_FUNC; |
1761 | void sha3_begin(sha3_ctx_t *ctx) FAST_FUNC; |
1762 | void sha3_hash(sha3_ctx_t *ctx, const void *buffer, size_t len) FAST_FUNC; |
1763 | void sha3_end(sha3_ctx_t *ctx, void *resbuf) FAST_FUNC; |
1764 | |
1765 | extern uint32_t *global_crc32_table; |
1766 | uint32_t *crc32_filltable(uint32_t *tbl256, int endian) FAST_FUNC; |
1767 | uint32_t crc32_block_endian1(uint32_t val, const void *buf, unsigned len, uint32_t *crc_table) FAST_FUNC; |
1768 | uint32_t crc32_block_endian0(uint32_t val, const void *buf, unsigned len, uint32_t *crc_table) FAST_FUNC; |
1769 | |
1770 | typedef struct masks_labels_t { |
1771 | const char *labels; |
1772 | const int masks[]; |
1773 | } masks_labels_t; |
1774 | int print_flags_separated(const int *masks, const char *labels, |
1775 | int flags, const char *separator) FAST_FUNC; |
1776 | int print_flags(const masks_labels_t *ml, int flags) FAST_FUNC; |
1777 | |
1778 | typedef struct bb_progress_t { |
1779 | unsigned last_size; |
1780 | unsigned last_update_sec; |
1781 | unsigned last_change_sec; |
1782 | unsigned start_sec; |
1783 | const char *curfile; |
1784 | } bb_progress_t; |
1785 | |
1786 | #define is_bb_progress_inited(p) ((p)->curfile != NULL) |
1787 | #define bb_progress_free(p) do { \ |
1788 | if (ENABLE_UNICODE_SUPPORT) free((char*)((p)->curfile)); \ |
1789 | (p)->curfile = NULL; \ |
1790 | } while (0) |
1791 | void bb_progress_init(bb_progress_t *p, const char *curfile) FAST_FUNC; |
1792 | void bb_progress_update(bb_progress_t *p, |
1793 | uoff_t beg_range, |
1794 | uoff_t transferred, |
1795 | uoff_t totalsize) FAST_FUNC; |
1796 | |
1797 | unsigned ubi_devnum_from_devname(const char *str) FAST_FUNC; |
1798 | int ubi_get_volid_by_name(unsigned ubi_devnum, const char *vol_name) FAST_FUNC; |
1799 | |
1800 | |
1801 | extern const char *applet_name; |
1802 | |
1803 | /* Some older linkers don't perform string merging, we used to have common strings |
1804 | * as global arrays to do it by hand. But: |
1805 | * (1) newer linkers do it themselves, |
1806 | * (2) however, they DONT merge string constants with global arrays, |
1807 | * even if the value is the same (!). Thus global arrays actually |
1808 | * increased size a bit: for example, "/etc/passwd" string from libc |
1809 | * wasn't merged with bb_path_passwd_file[] array! |
1810 | * Therefore now we use #defines. |
1811 | */ |
1812 | /* "BusyBox vN.N.N (timestamp or extra_version)" */ |
1813 | extern const char bb_banner[] ALIGN1; |
1814 | extern const char bb_msg_memory_exhausted[] ALIGN1; |
1815 | extern const char bb_msg_invalid_date[] ALIGN1; |
1816 | #define bb_msg_read_error "read error" |
1817 | #define bb_msg_write_error "write error" |
1818 | extern const char bb_msg_unknown[] ALIGN1; |
1819 | extern const char bb_msg_can_not_create_raw_socket[] ALIGN1; |
1820 | extern const char bb_msg_perm_denied_are_you_root[] ALIGN1; |
1821 | extern const char bb_msg_you_must_be_root[] ALIGN1; |
1822 | extern const char bb_msg_requires_arg[] ALIGN1; |
1823 | extern const char bb_msg_invalid_arg_to[] ALIGN1; |
1824 | extern const char bb_msg_standard_input[] ALIGN1; |
1825 | extern const char bb_msg_standard_output[] ALIGN1; |
1826 | |
1827 | /* NB: (bb_hexdigits_upcase[i] | 0x20) -> lowercase hex digit */ |
1828 | extern const char bb_hexdigits_upcase[] ALIGN1; |
1829 | |
1830 | extern const char bb_path_wtmp_file[] ALIGN1; |
1831 | |
1832 | /* Busybox mount uses either /proc/mounts or /etc/mtab to |
1833 | * get the list of currently mounted filesystems */ |
1834 | #define bb_path_mtab_file IF_FEATURE_MTAB_SUPPORT("/etc/mtab")IF_NOT_FEATURE_MTAB_SUPPORT("/proc/mounts") |
1835 | |
1836 | #define bb_path_passwd_file _PATH_PASSWD |
1837 | #define bb_path_group_file _PATH_GROUP |
1838 | #define bb_path_shadow_file _PATH_SHADOW |
1839 | #define bb_path_gshadow_file _PATH_GSHADOW |
1840 | |
1841 | #define bb_path_motd_file "/etc/motd" |
1842 | |
1843 | #define bb_dev_null "/dev/null" |
1844 | extern const char bb_busybox_exec_path[] ALIGN1; |
1845 | /* util-linux manpage says /sbin:/bin:/usr/sbin:/usr/bin, |
1846 | * but I want to save a few bytes here */ |
1847 | extern const char bb_PATH_root_path[] ALIGN1; /* "PATH=/sbin:/usr/sbin:/bin:/usr/bin" */ |
1848 | #define bb_default_root_path (bb_PATH_root_path + sizeof("PATH")) |
1849 | #define bb_default_path (bb_PATH_root_path + sizeof("PATH=/sbin:/usr/sbin")) |
1850 | |
1851 | extern const int const_int_0; |
1852 | //extern const int const_int_1; |
1853 | |
1854 | /* This struct is deliberately not defined. */ |
1855 | /* See docs/keep_data_small.txt */ |
1856 | struct globals; |
1857 | /* '*const' ptr makes gcc optimize code much better. |
1858 | * Magic prevents ptr_to_globals from going into rodata. |
1859 | * If you want to assign a value, use SET_PTR_TO_GLOBALS(x) */ |
1860 | extern struct globals *const ptr_to_globals; |
1861 | /* At least gcc 3.4.6 on mipsel system needs optimization barrier */ |
1862 | #define barrier() __asm__ __volatile__("":::"memory") |
1863 | #define SET_PTR_TO_GLOBALS(x) do { \ |
1864 | (*(struct globals**)&ptr_to_globals) = (void*)(x); \ |
1865 | barrier(); \ |
1866 | } while (0) |
1867 | #define FREE_PTR_TO_GLOBALS() do { \ |
1868 | if (ENABLE_FEATURE_CLEAN_UP) { \ |
1869 | free(ptr_to_globals); \ |
1870 | } \ |
1871 | } while (0) |
1872 | |
1873 | /* You can change LIBBB_DEFAULT_LOGIN_SHELL, but don't use it, |
1874 | * use bb_default_login_shell and following defines. |
1875 | * If you change LIBBB_DEFAULT_LOGIN_SHELL, |
1876 | * don't forget to change increment constant. */ |
1877 | #define LIBBB_DEFAULT_LOGIN_SHELL "-/bin/sh" |
1878 | extern const char bb_default_login_shell[] ALIGN1; |
1879 | /* "/bin/sh" */ |
1880 | #define DEFAULT_SHELL (bb_default_login_shell+1) |
1881 | /* "sh" */ |
1882 | #define DEFAULT_SHELL_SHORT_NAME (bb_default_login_shell+6) |
1883 | |
1884 | /* The following devices are the same on all systems. */ |
1885 | #define CURRENT_TTY "/dev/tty" |
1886 | #define DEV_CONSOLE "/dev/console" |
1887 | |
1888 | #if defined(__FreeBSD_kernel__) |
1889 | # define CURRENT_VC CURRENT_TTY |
1890 | # define VC_1 "/dev/ttyv0" |
1891 | # define VC_2 "/dev/ttyv1" |
1892 | # define VC_3 "/dev/ttyv2" |
1893 | # define VC_4 "/dev/ttyv3" |
1894 | # define VC_5 "/dev/ttyv4" |
1895 | # define VC_FORMAT "/dev/ttyv%d" |
1896 | #elif defined(__GNU__) |
1897 | # define CURRENT_VC CURRENT_TTY |
1898 | # define VC_1 "/dev/tty1" |
1899 | # define VC_2 "/dev/tty2" |
1900 | # define VC_3 "/dev/tty3" |
1901 | # define VC_4 "/dev/tty4" |
1902 | # define VC_5 "/dev/tty5" |
1903 | # define VC_FORMAT "/dev/tty%d" |
1904 | #elif ENABLE_FEATURE_DEVFS |
1905 | /*Linux, obsolete devfs names */ |
1906 | # define CURRENT_VC "/dev/vc/0" |
1907 | # define VC_1 "/dev/vc/1" |
1908 | # define VC_2 "/dev/vc/2" |
1909 | # define VC_3 "/dev/vc/3" |
1910 | # define VC_4 "/dev/vc/4" |
1911 | # define VC_5 "/dev/vc/5" |
1912 | # define VC_FORMAT "/dev/vc/%d" |
1913 | # define LOOP_FORMAT "/dev/loop/%u" |
1914 | # define LOOP_NAMESIZE (sizeof("/dev/loop/") + sizeof(int)*3 + 1) |
1915 | # define LOOP_NAME "/dev/loop/" |
1916 | # define FB_0 "/dev/fb/0" |
1917 | #else |
1918 | /*Linux, normal names */ |
1919 | # define CURRENT_VC "/dev/tty0" |
1920 | # define VC_1 "/dev/tty1" |
1921 | # define VC_2 "/dev/tty2" |
1922 | # define VC_3 "/dev/tty3" |
1923 | # define VC_4 "/dev/tty4" |
1924 | # define VC_5 "/dev/tty5" |
1925 | # define VC_FORMAT "/dev/tty%d" |
1926 | # define LOOP_FORMAT "/dev/loop%u" |
1927 | # define LOOP_NAMESIZE (sizeof("/dev/loop") + sizeof(int)*3 + 1) |
1928 | # define LOOP_NAME "/dev/loop" |
1929 | # define FB_0 "/dev/fb0" |
1930 | #endif |
1931 | |
1932 | |
1933 | #define ARRAY_SIZE(x) ((unsigned)(sizeof(x) / sizeof((x)[0]))) |
1934 | #define BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)])) |
1935 | |
1936 | |
1937 | /* We redefine ctype macros. Unicode-correct handling of char types |
1938 | * can't be done with such byte-oriented operations anyway, |
1939 | * we don't lose anything. |
1940 | */ |
1941 | #undef isalnum |
1942 | #undef isalpha |
1943 | #undef isascii |
1944 | #undef isblank |
1945 | #undef iscntrl |
1946 | #undef isdigit |
1947 | #undef isgraph |
1948 | #undef islower |
1949 | #undef isprint |
1950 | #undef ispunct |
1951 | #undef isspace |
1952 | #undef isupper |
1953 | #undef isxdigit |
1954 | #undef toupper |
1955 | #undef tolower |
1956 | |
1957 | /* We save ~500 bytes on isdigit alone. |
1958 | * BTW, x86 likes (unsigned char) cast more than (unsigned). */ |
1959 | |
1960 | /* These work the same for ASCII and Unicode, |
1961 | * assuming no one asks "is this a *Unicode* letter?" using isalpha(letter) */ |
1962 | #define isascii(a) ((unsigned char)(a) <= 0x7f) |
1963 | #define isdigit(a) ((unsigned char)((a) - '0') <= 9) |
1964 | #define isupper(a) ((unsigned char)((a) - 'A') <= ('Z' - 'A')) |
1965 | #define islower(a) ((unsigned char)((a) - 'a') <= ('z' - 'a')) |
1966 | #define isalpha(a) ((unsigned char)(((a)|0x20) - 'a') <= ('z' - 'a')) |
1967 | #define isblank(a) ({ unsigned char bb__isblank = (a); bb__isblank == ' ' || bb__isblank == '\t'; }) |
1968 | #define iscntrl(a) ({ unsigned char bb__iscntrl = (a); bb__iscntrl < ' ' || bb__iscntrl == 0x7f; }) |
1969 | /* In POSIX/C locale isspace is only these chars: "\t\n\v\f\r" and space. |
1970 | * "\t\n\v\f\r" happen to have ASCII codes 9,10,11,12,13. |
1971 | */ |
1972 | #define isspace(a) ({ unsigned char bb__isspace = (a) - 9; bb__isspace == (' ' - 9) || bb__isspace <= (13 - 9); }) |
1973 | // Unsafe wrt NUL: #define ispunct(a) (strchr("!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~", (a)) != NULL) |
1974 | #define ispunct(a) (strchrnul("!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~", (a))[0]) |
1975 | // Bigger code: #define isalnum(a) ({ unsigned char bb__isalnum = (a) - '0'; bb__isalnum <= 9 || ((bb__isalnum - ('A' - '0')) & 0xdf) <= 25; }) |
1976 | #define isalnum(a) bb_ascii_isalnum(a) |
1977 | static ALWAYS_INLINE int bb_ascii_isalnum(unsigned char a) |
1978 | { |
1979 | unsigned char b = a - '0'; |
1980 | if (b <= 9) |
1981 | return (b <= 9); |
1982 | b = (a|0x20) - 'a'; |
1983 | return b <= 'z' - 'a'; |
1984 | } |
1985 | #define isxdigit(a) bb_ascii_isxdigit(a) |
1986 | static ALWAYS_INLINE int bb_ascii_isxdigit(unsigned char a) |
1987 | { |
1988 | unsigned char b = a - '0'; |
1989 | if (b <= 9) |
1990 | return (b <= 9); |
1991 | b = (a|0x20) - 'a'; |
1992 | return b <= 'f' - 'a'; |
1993 | } |
1994 | #define toupper(a) bb_ascii_toupper(a) |
1995 | static ALWAYS_INLINE unsigned char bb_ascii_toupper(unsigned char a) |
1996 | { |
1997 | unsigned char b = a - 'a'; |
1998 | if (b <= ('z' - 'a')) |
1999 | a -= 'a' - 'A'; |
2000 | return a; |
2001 | } |
2002 | #define tolower(a) bb_ascii_tolower(a) |
2003 | static ALWAYS_INLINE unsigned char bb_ascii_tolower(unsigned char a) |
2004 | { |
2005 | unsigned char b = a - 'A'; |
2006 | if (b <= ('Z' - 'A')) |
2007 | a += 'a' - 'A'; |
2008 | return a; |
2009 | } |
2010 | |
2011 | /* In ASCII and Unicode, these are likely to be very different. |
2012 | * Let's prevent ambiguous usage from the start */ |
2013 | #define isgraph(a) isgraph_is_ambiguous_dont_use(a) |
2014 | #define isprint(a) isprint_is_ambiguous_dont_use(a) |
2015 | /* NB: must not treat EOF as isgraph or isprint */ |
2016 | #define isgraph_asciionly(a) ((unsigned)((a) - 0x21) <= 0x7e - 0x21) |
2017 | #define isprint_asciionly(a) ((unsigned)((a) - 0x20) <= 0x7e - 0x20) |
2018 | |
2019 | |
2020 | /* Simple unit-testing framework */ |
2021 | |
2022 | typedef void (*bbunit_testfunc)(void); |
2023 | |
2024 | struct bbunit_listelem { |
2025 | const char* name; |
2026 | bbunit_testfunc testfunc; |
2027 | }; |
2028 | |
2029 | void bbunit_registertest(struct bbunit_listelem* test); |
2030 | void bbunit_settestfailed(void); |
2031 | |
2032 | #define BBUNIT_DEFINE_TEST(NAME) \ |
2033 | static void bbunit_##NAME##_test(void); \ |
2034 | static struct bbunit_listelem bbunit_##NAME##_elem = { \ |
2035 | .name = #NAME, \ |
2036 | .testfunc = bbunit_##NAME##_test, \ |
2037 | }; \ |
2038 | static void INIT_FUNC bbunit_##NAME##_register(void) \ |
2039 | { \ |
2040 | bbunit_registertest(&bbunit_##NAME##_elem); \ |
2041 | } \ |
2042 | static void bbunit_##NAME##_test(void) |
2043 | |
2044 | /* |
2045 | * Both 'goto bbunit_end' and 'break' are here only to get rid |
2046 | * of compiler warnings. |
2047 | */ |
2048 | #define BBUNIT_ENDTEST \ |
2049 | do { \ |
2050 | goto bbunit_end; \ |
2051 | bbunit_end: \ |
2052 | break; \ |
2053 | } while (0) |
2054 | |
2055 | #define BBUNIT_PRINTASSERTFAIL \ |
2056 | do { \ |
2057 | bb_error_msg( \ |
2058 | "[ERROR] Assertion failed in file %s, line %d", \ |
2059 | __FILE__, __LINE__); \ |
2060 | } while (0) |
2061 | |
2062 | #define BBUNIT_ASSERTION_FAILED \ |
2063 | do { \ |
2064 | bbunit_settestfailed(); \ |
2065 | goto bbunit_end; \ |
2066 | } while (0) |
2067 | |
2068 | /* |
2069 | * Assertions. |
2070 | * For now we only offer assertions which cause tests to fail |
2071 | * immediately. In the future 'expects' might be added too - |
2072 | * similar to those offered by the gtest framework. |
2073 | */ |
2074 | #define BBUNIT_ASSERT_EQ(EXPECTED, ACTUAL) \ |
2075 | do { \ |
2076 | if ((EXPECTED) != (ACTUAL)) { \ |
2077 | BBUNIT_PRINTASSERTFAIL; \ |
2078 | bb_error_msg("[ERROR] '%s' isn't equal to '%s'", \ |
2079 | #EXPECTED, #ACTUAL); \ |
2080 | BBUNIT_ASSERTION_FAILED; \ |
2081 | } \ |
2082 | } while (0) |
2083 | |
2084 | #define BBUNIT_ASSERT_NOTEQ(EXPECTED, ACTUAL) \ |
2085 | do { \ |
2086 | if ((EXPECTED) == (ACTUAL)) { \ |
2087 | BBUNIT_PRINTASSERTFAIL; \ |
2088 | bb_error_msg("[ERROR] '%s' is equal to '%s'", \ |
2089 | #EXPECTED, #ACTUAL); \ |
2090 | BBUNIT_ASSERTION_FAILED; \ |
2091 | } \ |
2092 | } while (0) |
2093 | |
2094 | #define BBUNIT_ASSERT_NOTNULL(PTR) \ |
2095 | do { \ |
2096 | if ((PTR) == NULL) { \ |
2097 | BBUNIT_PRINTASSERTFAIL; \ |
2098 | bb_error_msg("[ERROR] '%s' is NULL!", #PTR); \ |
2099 | BBUNIT_ASSERTION_FAILED; \ |
2100 | } \ |
2101 | } while (0) |
2102 | |
2103 | #define BBUNIT_ASSERT_NULL(PTR) \ |
2104 | do { \ |
2105 | if ((PTR) != NULL) { \ |
2106 | BBUNIT_PRINTASSERTFAIL; \ |
2107 | bb_error_msg("[ERROR] '%s' is not NULL!", #PTR); \ |
2108 | BBUNIT_ASSERTION_FAILED; \ |
2109 | } \ |
2110 | } while (0) |
2111 | |
2112 | #define BBUNIT_ASSERT_FALSE(STATEMENT) \ |
2113 | do { \ |
2114 | if ((STATEMENT)) { \ |
2115 | BBUNIT_PRINTASSERTFAIL; \ |
2116 | bb_error_msg("[ERROR] Statement '%s' evaluated to true!", \ |
2117 | #STATEMENT); \ |
2118 | BBUNIT_ASSERTION_FAILED; \ |
2119 | } \ |
2120 | } while (0) |
2121 | |
2122 | #define BBUNIT_ASSERT_TRUE(STATEMENT) \ |
2123 | do { \ |
2124 | if (!(STATEMENT)) { \ |
2125 | BBUNIT_PRINTASSERTFAIL; \ |
2126 | bb_error_msg("[ERROR] Statement '%s' evaluated to false!", \ |
2127 | #STATEMENT); \ |
2128 | BBUNIT_ASSERTION_FAILED; \ |
2129 | } \ |
2130 | } while (0) |
2131 | |
2132 | #define BBUNIT_ASSERT_STREQ(STR1, STR2) \ |
2133 | do { \ |
2134 | if (strcmp(STR1, STR2) != 0) { \ |
2135 | BBUNIT_PRINTASSERTFAIL; \ |
2136 | bb_error_msg("[ERROR] Strings '%s' and '%s' " \ |
2137 | "are not the same", STR1, STR2); \ |
2138 | BBUNIT_ASSERTION_FAILED; \ |
2139 | } \ |
2140 | } while (0) |
2141 | |
2142 | #define BBUNIT_ASSERT_STRNOTEQ(STR1, STR2) \ |
2143 | do { \ |
2144 | if (strcmp(STR1, STR2) == 0) { \ |
2145 | BBUNIT_PRINTASSERTFAIL; \ |
2146 | bb_error_msg("[ERROR] Strings '%s' and '%s' " \ |
2147 | "are the same, but were " \ |
2148 | "expected to differ", STR1, STR2); \ |
2149 | BBUNIT_ASSERTION_FAILED; \ |
2150 | } \ |
2151 | } while (0) |
2152 | |
2153 | |
2154 | POP_SAVED_FUNCTION_VISIBILITY |
2155 | |
2156 | #endif |
2157 |