blob: 887387ab1e27592b61a2eb4277234f9e748d1ef1
| 1 | #include <stdio.h> |
| 2 | #include <stdlib.h> |
| 3 | #include <string.h> |
| 4 | #include <fcntl.h> |
| 5 | |
| 6 | #include <errno.h> |
| 7 | #include <sys/stat.h> |
| 8 | #include <unistd.h> |
| 9 | |
| 10 | #include "ubootenv/Ubootenv.h" |
| 11 | |
| 12 | |
| 13 | // ------------------------------------ |
| 14 | // for uboot environment variable operation |
| 15 | // ------------------------------------ |
| 16 | |
| 17 | |
| 18 | int set_bootloader_env(const char* name, const char* value) |
| 19 | { |
| 20 | Ubootenv *ubootenv = new Ubootenv(); |
| 21 | |
| 22 | char ubootenv_name[128] = {0}; |
| 23 | const char *ubootenv_var = "ubootenv.var."; |
| 24 | sprintf(ubootenv_name, "%s%s", ubootenv_var, name); |
| 25 | |
| 26 | if (ubootenv->updateValue(ubootenv_name, value)) { |
| 27 | fprintf(stderr,"could not set boot env\n"); |
| 28 | return -1; |
| 29 | } |
| 30 | |
| 31 | return 0; |
| 32 | } |
| 33 | |
| 34 | char *get_bootloader_env(const char * name) |
| 35 | { |
| 36 | Ubootenv *ubootenv = new Ubootenv(); |
| 37 | char ubootenv_name[128] = {0}; |
| 38 | const char *ubootenv_var = "ubootenv.var."; |
| 39 | sprintf(ubootenv_name, "%s%s", ubootenv_var, name); |
| 40 | return (char *)ubootenv->getValue(ubootenv_name); |
| 41 | } |
| 42 | |
| 43 | |
| 44 | int set_env_optarg(char * optarg) |
| 45 | { |
| 46 | int ret = -1; |
| 47 | char *buffer = NULL, *name = NULL, *value = NULL; |
| 48 | if ((optarg == NULL) || (strlen(optarg) == 0)) { |
| 49 | printf("param error!\n"); |
| 50 | return -1; |
| 51 | } |
| 52 | |
| 53 | buffer = strdup(optarg); |
| 54 | if (!buffer) { |
| 55 | printf("strdup for buffer failed\n"); |
| 56 | return -1; |
| 57 | } |
| 58 | |
| 59 | name = strtok(buffer, "="); |
| 60 | if (strlen(name) == strlen(optarg)) { |
| 61 | printf("strtok for '=' failed\n"); |
| 62 | goto END; |
| 63 | } |
| 64 | |
| 65 | value = optarg + strlen(name) + 1; |
| 66 | if (strlen(name) == 0) { |
| 67 | printf("name is NULL\n"); |
| 68 | goto END; |
| 69 | } |
| 70 | |
| 71 | if (strlen(value) == 0) { |
| 72 | printf("value is NULL\n"); |
| 73 | goto END; |
| 74 | } |
| 75 | |
| 76 | ret = set_bootloader_env(name, value); |
| 77 | if (ret < 0) { |
| 78 | printf("set env :%s=%s failed", name, value); |
| 79 | } |
| 80 | |
| 81 | END: |
| 82 | |
| 83 | if (buffer != NULL) { |
| 84 | free(buffer); |
| 85 | buffer = NULL; |
| 86 | } |
| 87 | return ret; |
| 88 | } |
| 89 | |
| 90 | int get_env_optarg(const char * optarg) |
| 91 | { |
| 92 | int ret = -1; |
| 93 | |
| 94 | if (optarg == NULL) { |
| 95 | printf("param error!\n"); |
| 96 | return -1; |
| 97 | } |
| 98 | |
| 99 | char *env = get_bootloader_env(optarg); |
| 100 | if (env != NULL) |
| 101 | { |
| 102 | printf("get %s value:%s\n", optarg, env); |
| 103 | ret = 0; |
| 104 | } |
| 105 | |
| 106 | return ret; |
| 107 | } |
| 108 |