blob: 263091945739f8aad8f49bf84a906a4d181ad8a3
1 | /* |
2 | * Copyright (C) 2002-2005 Roman Zippel <zippel@linux-m68k.org> |
3 | * Copyright (C) 2002-2005 Sam Ravnborg <sam@ravnborg.org> |
4 | * |
5 | * Released under the terms of the GNU GPL v2.0. |
6 | */ |
7 | |
8 | #include <string.h> |
9 | #include "lkc.h" |
10 | |
11 | /* file already present in list? If not add it */ |
12 | struct file *file_lookup(const char *name) |
13 | { |
14 | struct file *file; |
15 | |
16 | for (file = file_list; file; file = file->next) { |
17 | if (!strcmp(name, file->name)) |
18 | return file; |
19 | } |
20 | |
21 | file = malloc(sizeof(*file)); |
22 | memset(file, 0, sizeof(*file)); |
23 | file->name = strdup(name); |
24 | file->next = file_list; |
25 | file_list = file; |
26 | return file; |
27 | } |
28 | |
29 | /* write a dependency file as used by kbuild to track dependencies */ |
30 | int file_write_dep(const char *name) |
31 | { |
32 | struct file *file; |
33 | FILE *out; |
34 | |
35 | if (!name) |
36 | name = ".kconfig.d"; |
37 | out = fopen("..config.tmp", "w"); |
38 | if (!out) |
39 | return 1; |
40 | fprintf(out, "deps_config := \\\n"); |
41 | for (file = file_list; file; file = file->next) { |
42 | if (file->next) |
43 | fprintf(out, "\t%s \\\n", file->name); |
44 | else |
45 | fprintf(out, "\t%s\n", file->name); |
46 | } |
47 | fprintf(out, |
48 | "\n" |
49 | ".config include/autoconf.h: $(deps_config)\n" |
50 | "\n" |
51 | "include/autoconf.h: .config\n" /* bbox */ |
52 | "\n" |
53 | "$(deps_config):\n"); |
54 | fclose(out); |
55 | rename("..config.tmp", name); |
56 | return 0; |
57 | } |
58 | |
59 | |
60 | /* Allocate initial growable string */ |
61 | struct gstr str_new(void) |
62 | { |
63 | struct gstr gs; |
64 | gs.s = malloc(sizeof(char) * 64); |
65 | gs.len = 16; |
66 | strcpy(gs.s, "\0"); |
67 | return gs; |
68 | } |
69 | |
70 | /* Allocate and assign growable string */ |
71 | struct gstr str_assign(const char *s) |
72 | { |
73 | struct gstr gs; |
74 | gs.s = strdup(s); |
75 | gs.len = strlen(s) + 1; |
76 | return gs; |
77 | } |
78 | |
79 | /* Free storage for growable string */ |
80 | void str_free(struct gstr *gs) |
81 | { |
82 | if (gs->s) |
83 | free(gs->s); |
84 | gs->s = NULL; |
85 | gs->len = 0; |
86 | } |
87 | |
88 | /* Append to growable string */ |
89 | void str_append(struct gstr *gs, const char *s) |
90 | { |
91 | size_t l = strlen(gs->s) + strlen(s) + 1; |
92 | if (l > gs->len) { |
93 | gs->s = realloc(gs->s, l); |
94 | gs->len = l; |
95 | } |
96 | strcat(gs->s, s); |
97 | } |
98 | |
99 | /* Append printf formatted string to growable string */ |
100 | void str_printf(struct gstr *gs, const char *fmt, ...) |
101 | { |
102 | va_list ap; |
103 | char s[10000]; /* big enough... */ |
104 | va_start(ap, fmt); |
105 | vsnprintf(s, sizeof(s), fmt, ap); |
106 | str_append(gs, s); |
107 | va_end(ap); |
108 | } |
109 | |
110 | /* Retrieve value of growable string */ |
111 | const char *str_get(struct gstr *gs) |
112 | { |
113 | return gs->s; |
114 | } |
115 |