run_parts: make it sort executables by name (required by API)
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| @@ -34,27 +34,32 @@ | |
| #include "libbb.h" | |
| - | #if ENABLE_FEATURE_RUN_PARTS_LONG_OPTIONS |
| - | static const char runparts_longopts[] ALIGN1 = |
| - | "arg\0" Required_argument "a" |
| - | "umask\0" Required_argument "u" |
| - | "test\0" No_argument "t" |
| - | #if ENABLE_FEATURE_RUN_PARTS_FANCY |
| - | "list\0" No_argument "l" |
| - | //TODO: "reverse\0" No_argument "r" |
| - | //TODO: "verbose\0" No_argument "v" |
| - | #endif |
| - | ; |
| - | #endif |
| - | |
| struct globals { | |
| - | smalluint mode; |
| - | char *cmd[10]; /* merely arbitrary arg count */ |
| + | char **names; |
| + | int cur; |
| + | char *cmd[1]; |
| }; | |
| #define G (*(struct globals*)&bb_common_bufsiz1) | |
| + | #define names (G.names) |
| + | #define cur (G.cur ) |
| + | #define cmd (G.cmd ) |
| + | |
| + | enum { NUM_CMD = (COMMON_BUFSIZE - sizeof(struct globals)) / sizeof(cmd[0]) }; |
| + | |
| + | enum { |
| + | RUN_PARTS_OPT_a = (1 << 0), |
| + | RUN_PARTS_OPT_u = (1 << 1), |
| + | RUN_PARTS_OPT_t = (1 << 2), |
| + | RUN_PARTS_OPT_l = (1 << 3) * ENABLE_FEATURE_RUN_PARTS_FANCY, |
| + | }; |
| + | |
| + | #if ENABLE_FEATURE_RUN_PARTS_FANCY |
| + | #define list_mode (option_mask32 & RUN_PARTS_OPT_l) |
| + | #else |
| + | #define list_mode 0 |
| + | #endif |
| - | /* valid_name */ |
| - | /* True or false? Is this a valid filename (upper/lower alpha, digits, |
| + | /* Is this a valid filename (upper/lower alpha, digits, |
| * underscores, and hyphens only?) | |
| */ | |
| static bool invalid_name(const char *c) | |
| @@ -67,80 +72,103 @@ static bool invalid_name(const char *c) | |
| return *c; /* TRUE (!0) if terminating NUL is not reached */ | |
| } | |
| - | #define RUN_PARTS_OPT_a (1<<0) |
| - | #define RUN_PARTS_OPT_u (1<<1) |
| - | #define RUN_PARTS_OPT_t (1<<2) |
| - | #if ENABLE_FEATURE_RUN_PARTS_FANCY |
| - | #define RUN_PARTS_OPT_l (1<<3) |
| - | #endif |
| - | |
| - | #define test_mode (G.mode & RUN_PARTS_OPT_t) |
| - | #if ENABLE_FEATURE_RUN_PARTS_FANCY |
| - | #define list_mode (G.mode & RUN_PARTS_OPT_l) |
| - | #else |
| - | #define list_mode (0) |
| - | #endif |
| + | static int bb_alphasort(const void *p1, const void *p2) |
| + | { |
| + | return strcmp(*(char **) p1, *(char **) p2); |
| + | } |
| static int act(const char *file, struct stat *statbuf, void *args, int depth) | |
| { | |
| - | int ret; |
| - | |
| if (depth == 1) | |
| return TRUE; | |
| - | if (depth == 2 && |
| - | ((!list_mode && access(file, X_OK)) || |
| - | invalid_name(file) || |
| - | !(statbuf->st_mode & (S_IFREG | S_IFLNK))) ) |
| + | if (depth == 2 |
| + | && ( !(statbuf->st_mode & (S_IFREG | S_IFLNK)) |
| + | || invalid_name(file) |
| + | || (!list_mode && access(file, X_OK) != 0)) |
| + | ) { |
| return SKIP; | |
| - | |
| - | if (test_mode || list_mode) { |
| - | puts(file); |
| - | return TRUE; |
| } | |
| - | G.cmd[0] = (char*)file; |
| - | ret = wait4pid(spawn(G.cmd)); |
| - | if (ret < 0) { |
| - | bb_perror_msg("failed to exec %s", file); |
| - | } else if (ret > 0) { |
| - | bb_error_msg("%s exited with return code %d", file, ret); |
| - | } |
| - | return !ret; |
| + | |
| + | names = xrealloc(names, (cur + 2) * sizeof(names[0])); |
| + | names[cur++] = xstrdup(file); |
| + | names[cur] = NULL; |
| + | |
| + | return TRUE; |
| } | |
| + | #if ENABLE_FEATURE_RUN_PARTS_LONG_OPTIONS |
| + | static const char runparts_longopts[] ALIGN1 = |
| + | "arg\0" Required_argument "a" |
| + | "umask\0" Required_argument "u" |
| + | "test\0" No_argument "t" |
| + | #if ENABLE_FEATURE_RUN_PARTS_FANCY |
| + | "list\0" No_argument "l" |
| + | //TODO: "reverse\0" No_argument "r" |
| + | //TODO: "verbose\0" No_argument "v" |
| + | #endif |
| + | ; |
| + | #endif |
| + | |
| int run_parts_main(int argc, char **argv); | |
| int run_parts_main(int argc, char **argv) | |
| { | |
| - | char *umask_p; |
| + | const char *umask_p = "22"; |
| llist_t *arg_list = NULL; | |
| - | unsigned tmp; |
| + | unsigned n; |
| + | int ret; |
| - | umask(022); |
| - | /* We require exactly one argument: the directory name */ |
| - | opt_complementary = "=1:a::"; |
| #if ENABLE_FEATURE_RUN_PARTS_LONG_OPTIONS | |
| applet_long_options = runparts_longopts; | |
| #endif | |
| - | tmp = getopt32(argv, "a:u:t"USE_FEATURE_RUN_PARTS_FANCY("l"), &arg_list, &umask_p); |
| - | G.mode = tmp &~ (RUN_PARTS_OPT_a|RUN_PARTS_OPT_u); |
| - | if (tmp & RUN_PARTS_OPT_u) { |
| - | /* Check and set the umask of the program executed. |
| - | * As stated in the original run-parts, the octal conversion in |
| - | * libc is not foolproof; it will take the 8 and 9 digits under |
| - | * some circumstances. We'll just have to live with it. |
| - | */ |
| - | umask(xstrtoul_range(umask_p, 8, 0, 07777)); |
| + | /* We require exactly one argument: the directory name */ |
| + | opt_complementary = "=1:a::"; |
| + | getopt32(argv, "a:u:t"USE_FEATURE_RUN_PARTS_FANCY("l"), &arg_list, &umask_p); |
| + | |
| + | umask(xstrtou_range(umask_p, 8, 0, 07777)); |
| + | |
| + | n = 1; |
| + | while (arg_list && n < NUM_CMD) { |
| + | cmd[n] = arg_list->data; |
| + | arg_list = arg_list->link; |
| + | n++; |
| } | |
| - | for (tmp = 1; arg_list; arg_list = arg_list->link, tmp++) |
| - | G.cmd[tmp] = arg_list->data; |
| - | /* G.cmd[tmp] = NULL; - G is already zeroed out */ |
| - | if (!recursive_action(argv[argc - 1], |
| + | /* cmd[n] = NULL; - is already zeroed out */ |
| + | |
| + | /* run-parts has to sort executables by name before running them */ |
| + | |
| + | recursive_action(argv[optind], |
| ACTION_RECURSE|ACTION_FOLLOWLINKS, | |
| - | act, /* file action */ |
| - | act, /* dir action */ |
| - | NULL, /* user data */ |
| - | 1 /* depth */ |
| - | )) |
| - | return EXIT_FAILURE; |
| - | return EXIT_SUCCESS; |
| + | act, /* file action */ |
| + | act, /* dir action */ |
| + | NULL, /* user data */ |
| + | 1 /* depth */ |
| + | ); |
| + | |
| + | if (!names) |
| + | return 0; |
| + | |
| + | qsort(names, cur, sizeof(char *), bb_alphasort); |
| + | |
| + | n = 0; |
| + | while (1) { |
| + | char *name = *names++; |
| + | if (!name) |
| + | break; |
| + | if (option_mask32 & (RUN_PARTS_OPT_t | RUN_PARTS_OPT_l)) { |
| + | puts(name); |
| + | continue; |
| + | } |
| + | cmd[0] = name; |
| + | ret = wait4pid(spawn(cmd)); |
| + | if (ret == 0) |
| + | continue; |
| + | n = 1; |
| + | if (ret < 0) |
| + | bb_perror_msg("failed to exec %s", name); |
| + | else /* ret > 0 */ |
| + | bb_error_msg("%s exited with return code %d", name, ret); |
| + | } |
| + | |
| + | return n; |
| } | |