Changeset 1770 in MondoRescue for branches/stable/mindi-busybox/coreutils/id.c
- Timestamp:
- Nov 6, 2007, 11:01:53 AM (16 years ago)
- File:
-
- 1 edited
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branches/stable/mindi-busybox/coreutils/id.c (modified) (4 diffs)
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branches/stable/mindi-busybox/coreutils/id.c
r821 r1770 11 11 /* Hacked by Tito Ragusa (C) 2004 to handle usernames of whatever length and to 12 12 * be more similar to GNU id. 13 * -Z option support: by Yuichi Nakamura <ynakam@hitachisoft.jp> 13 14 */ 14 15 15 #include "busybox.h" 16 #include "pwd_.h" 17 #include <stdio.h> 18 #include <unistd.h> 19 #include <sys/types.h> 20 21 #ifdef CONFIG_SELINUX 22 #include <selinux/selinux.h> /* for is_selinux_enabled() */ 23 #endif 16 #include "libbb.h" 24 17 25 18 #define PRINT_REAL 1 … … 27 20 #define JUST_USER 4 28 21 #define JUST_GROUP 8 22 #if ENABLE_SELINUX 23 #define JUST_CONTEXT 16 24 #endif 29 25 30 static short printf_full(unsigned int id, const char *arg, const char prefix)26 static int printf_full(unsigned int id, const char *arg, const char prefix) 31 27 { 32 28 const char *fmt = "%cid=%u"; 33 short status=EXIT_FAILURE;29 int status = EXIT_FAILURE; 34 30 35 if (arg) {31 if (arg) { 36 32 fmt = "%cid=%u(%s)"; 37 status =EXIT_SUCCESS;33 status = EXIT_SUCCESS; 38 34 } 39 bb_printf(fmt, prefix, id, arg);35 printf(fmt, prefix, id, arg); 40 36 return status; 41 37 } 42 38 39 int id_main(int argc, char **argv); 43 40 int id_main(int argc, char **argv) 44 41 { … … 48 45 unsigned long flags; 49 46 short status; 50 47 #if ENABLE_SELINUX 48 security_context_t scontext; 49 #endif 51 50 /* Don't allow -n -r -nr -ug -rug -nug -rnug */ 52 51 /* Don't allow more than one username */ 53 bb_opt_complementally = "?1:?:u--g:g--u:r?ug:n?ug";54 flags = bb_getopt_ulflags(argc, argv, "rnug");52 opt_complementary = "?1:u--g:g--u:r?ug:n?ug" USE_SELINUX(":u--Z:Z--u:g--Z:Z--g"); 53 flags = getopt32(argv, "rnug" USE_SELINUX("Z")); 55 54 56 55 /* This values could be overwritten later */ … … 62 61 } 63 62 64 if (argv[optind]) {65 p =getpwnam(argv[optind]);66 /* bb_xgetpwnamis needed because it exits on failure */67 uid = bb_xgetpwnam(argv[optind]);63 if (argv[optind]) { 64 p = getpwnam(argv[optind]); 65 /* xuname2uid is needed because it exits on failure */ 66 uid = xuname2uid(argv[optind]); 68 67 gid = p->pw_gid; 69 68 /* in this case PRINT_REAL is the same */ 70 69 } 71 70 72 if (flags & (JUST_GROUP | JUST_USER)) {71 if (flags & (JUST_GROUP | JUST_USER USE_SELINUX(| JUST_CONTEXT))) { 73 72 /* JUST_GROUP and JUST_USER are mutually exclusive */ 74 if (flags & NAME_NOT_NUMBER) {75 /* bb_get pwuid and bb_getgrgid exit on failure soputs cannot segfault */76 puts((flags & JUST_USER) ? bb_getpwuid(NULL, uid, -1 ) : bb_getgrgid(NULL, gid, -1));73 if (flags & NAME_NOT_NUMBER) { 74 /* bb_getXXXid(-1) exit on failure, puts cannot segfault */ 75 puts((flags & JUST_USER) ? bb_getpwuid(NULL, -1, uid) : bb_getgrgid(NULL, -1, gid)); 77 76 } else { 78 bb_printf("%u\n",(flags & JUST_USER) ? uid : gid); 77 if (flags & JUST_USER) { 78 printf("%u\n", uid); 79 } 80 if (flags & JUST_GROUP) { 81 printf("%u\n", gid); 82 } 79 83 } 84 85 #if ENABLE_SELINUX 86 if (flags & JUST_CONTEXT) { 87 selinux_or_die(); 88 if (argc - optind == 1) { 89 bb_error_msg_and_die("user name can't be passed with -Z"); 90 } 91 92 if (getcon(&scontext)) { 93 bb_error_msg_and_die("can't get process context"); 94 } 95 printf("%s\n", scontext); 96 } 97 #endif 80 98 /* exit */ 81 bb_fflush_stdout_and_exit(EXIT_SUCCESS);99 fflush_stdout_and_exit(EXIT_SUCCESS); 82 100 } 83 101 84 102 /* Print full info like GNU id */ 85 /* bb_getpwuid doesn't exit on failure here*/86 status =printf_full(uid, bb_getpwuid(NULL, uid, 0), 'u');103 /* bb_getpwuid(0) doesn't exit on failure (returns NULL) */ 104 status = printf_full(uid, bb_getpwuid(NULL, 0, uid), 'u'); 87 105 putchar(' '); 88 /* bb_getgrgid doesn't exit on failure here */ 89 status|=printf_full(gid, bb_getgrgid(NULL, gid, 0), 'g'); 106 status |= printf_full(gid, bb_getgrgid(NULL, 0, gid), 'g'); 90 107 91 #ifdef CONFIG_SELINUX 92 if ( is_selinux_enabled() ) { 93 security_context_t mysid; 94 char context[80]; 95 int len = sizeof(context); 108 #if ENABLE_SELINUX 109 if (is_selinux_enabled()) { 110 security_context_t mysid; 111 const char *context; 96 112 97 getcon(&mysid); 98 context[0] = '\0'; 99 if (mysid) { 100 len = strlen(mysid)+1; 101 safe_strncpy(context, mysid, len); 102 freecon(mysid); 103 }else{ 104 safe_strncpy(context, "unknown",8); 105 } 106 bb_printf(" context=%s", context); 113 context = "unknown"; 114 getcon(&mysid); 115 if (mysid) { 116 context = alloca(strlen(mysid) + 1); 117 strcpy((char*)context, mysid); 118 freecon(mysid); 119 } 120 printf(" context=%s", context); 107 121 } 108 122 #endif 109 123 110 124 putchar('\n'); 111 bb_fflush_stdout_and_exit(status);125 fflush_stdout_and_exit(status); 112 126 }
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