From d14084019fb5258977061ea69c5d8374b9ae0bdd Mon Sep 17 00:00:00 2001 From: Glenn L McGrath Date: Sat, 1 May 2004 11:47:24 +0000 Subject: This patch makes the id command SuS3 compliant and provides a groups applet via an alias to id. - Add G option - Pedantic option checking - If effective group and user differs from the real one show both. id. - Alias id -Gn to groups applet --- patches/id_groups_alias.patch | 314 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 314 insertions(+) create mode 100644 patches/id_groups_alias.patch diff --git a/patches/id_groups_alias.patch b/patches/id_groups_alias.patch new file mode 100644 index 000000000..3dadae0ce --- /dev/null +++ b/patches/id_groups_alias.patch @@ -0,0 +1,314 @@ +Index: coreutils/Config.in +=================================================================== +RCS file: /var/cvs/busybox/coreutils/Config.in,v +retrieving revision 1.24 +diff -u -r1.24 Config.in +--- a/coreutils/Config.in 15 Mar 2004 08:28:19 -0000 1.24 ++++ b/coreutils/Config.in 1 May 2004 11:39:04 -0000 +@@ -218,6 +218,14 @@ + help + id displays the current user and group ID names. + ++config CONFIG_FEATURE_ID_GROUPS_ALIAS ++ bool " Support 'groups' as alias to 'id -Gn'" ++ default y ++ depends on CONFIG_ID ++ help ++ Print the groups a user is in. This is an alias to 'id -Gn' on ++ most systems. ++ + config CONFIG_INSTALL + bool "install" + default n +Index: coreutils/id.c +=================================================================== +RCS file: /var/cvs/busybox/coreutils/id.c,v +retrieving revision 1.24 +diff -u -r1.24 id.c +--- a/coreutils/id.c 15 Mar 2004 08:28:20 -0000 1.24 ++++ b/coreutils/id.c 1 May 2004 11:39:05 -0000 +@@ -3,6 +3,8 @@ + * Mini id implementation for busybox + * + * Copyright (C) 2000 by Randolph Chung ++ * Copyright (C) 2004 by Tony J. White ++ * Copyright (C) 2004 by Glenn McGrath + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by +@@ -20,7 +22,6 @@ + * + */ + +-/* BB_AUDIT SUSv3 _NOT_ compliant -- option -G is not currently supported. */ + + #include "busybox.h" + #include +@@ -33,78 +34,153 @@ + #include + #endif + +-#define JUST_USER 1 +-#define JUST_GROUP 2 +-#define PRINT_REAL 4 +-#define NAME_NOT_NUMBER 8 ++#define ID_OPT_JUST_USER 1 ++#define ID_OPT_JUST_GROUP 2 ++#define ID_OPT_ALL_GROUPS 4 ++#define ID_OPT_PRINT_REAL 8 ++#define ID_OPT_NAME_NOT_NUMBER 16 ++ ++static void print_groups(unsigned long flags, const char sep) ++{ ++ gid_t gids[64]; ++ int gid_count; ++ int i; ++ ++ gid_count = getgroups(64, gids); ++ ++ for (i = 0; i < gid_count; i++) { ++ struct group *tmp_grp; ++ ++ if (i != 0) { ++ putchar(sep); ++ } ++ tmp_grp = getgrgid(gids[i]); ++ if (flags & ID_OPT_NAME_NOT_NUMBER) { ++ if (tmp_grp == NULL) { ++ continue; ++ } ++ printf("%s", tmp_grp->gr_name); ++ } else { ++ printf("%u", gids[i]); ++ if (!(flags & ID_OPT_ALL_GROUPS)) { ++ if (tmp_grp == NULL) { ++ continue; ++ } ++ printf("(%s)", tmp_grp->gr_name); ++ } ++ } ++ } ++} + + extern int id_main(int argc, char **argv) + { +- char user[9], group[9]; +- long pwnam, grnam; +- int uid, gid; +- int flags; ++ struct group *grp; ++ struct passwd *usr; ++ unsigned long flags; ++ uid_t uid; ++ uid_t gid; ++ uid_t euid; ++ uid_t egid; + #ifdef CONFIG_SELINUX + int is_flask_enabled_flag = is_flask_enabled(); + #endif + +- flags = bb_getopt_ulflags(argc, argv, "ugrn"); ++ bb_opt_complementaly = "u~gG:g~uG:G~ug:~n"; ++ flags = bb_getopt_ulflags(argc, argv, "ugGrn"); + +- if (((flags & (JUST_USER | JUST_GROUP)) == (JUST_USER | JUST_GROUP)) +- || (argc > optind + 1) +- ) { ++ /* Check one and only one context option was given */ ++ if ((flags & 0x80000000UL) || ++ (flags & (ID_OPT_PRINT_REAL | ID_OPT_ALL_GROUPS)) || ++ ((flags & (ID_OPT_PRINT_REAL | ID_OPT_NAME_NOT_NUMBER)) == ++ (ID_OPT_PRINT_REAL | ID_OPT_NAME_NOT_NUMBER))) { + bb_show_usage(); + } + ++#ifdef CONFIG_FEATURE_ID_GROUPS_ALIAS ++ /* groups command is an alias for 'id -Gn' */ ++ if (bb_applet_name[0] == 'g') { ++ flags |= (ID_OPT_ALL_GROUPS + ID_OPT_NAME_NOT_NUMBER); ++ } ++#endif ++ ++ uid = getuid(); ++ gid = getgid(); ++ euid = geteuid(); ++ egid = getegid(); ++ ++ if (flags & ID_OPT_PRINT_REAL) { ++ euid = uid; ++ egid = gid; ++ } ++ + if (argv[optind] == NULL) { +- if (flags & PRINT_REAL) { +- uid = getuid(); +- gid = getgid(); +- } else { +- uid = geteuid(); +- gid = getegid(); +- } +- my_getpwuid(user, uid); ++ usr = getpwuid(euid); ++ grp = getgrgid(egid); + } else { +- safe_strncpy(user, argv[optind], sizeof(user)); +- gid = my_getpwnamegid(user); ++ usr = getpwnam(argv[optind]); ++ grp = getgrnam(argv[optind]); + } +- my_getgrgid(group, gid); + +- pwnam=my_getpwnam(user); +- grnam=my_getgrnam(group); ++ if (usr == NULL) { ++ bb_perror_msg_and_die("cannot find user name"); ++ } ++ if (grp == NULL) { ++ bb_perror_msg_and_die("cannot find group name"); ++ } + +- if (flags & (JUST_GROUP | JUST_USER)) { +- char *s = group; +- if (flags & JUST_USER) { +- s = user; +- grnam = pwnam; ++ if (flags & ID_OPT_JUST_USER) { ++ if (flags & ID_OPT_NAME_NOT_NUMBER) { ++ printf("%s", grp->gr_name); ++ } else { ++ printf("%u", euid); + } +- if (flags & NAME_NOT_NUMBER) { +- puts(s); ++ } ++ else if (flags & ID_OPT_JUST_GROUP) { ++ if (flags & ID_OPT_NAME_NOT_NUMBER) { ++ printf("%s", grp->gr_name); + } else { +- printf("%ld\n", grnam); ++ printf("%u", egid); + } ++ } ++ else if (flags & ID_OPT_ALL_GROUPS) { ++ print_groups(flags, ' '); + } else { +-#ifdef CONFIG_SELINUX +- printf("uid=%ld(%s) gid=%ld(%s)", pwnam, user, grnam, group); +- if(is_flask_enabled_flag) +- { +- security_id_t mysid = getsecsid(); +- char context[80]; +- int len = sizeof(context); +- context[0] = '\0'; +- if(security_sid_to_context(mysid, context, &len)) +- strcpy(context, "unknown"); +- printf(" context=%s\n", context); +- } +- else +- printf("\n"); +-#else +- printf("uid=%ld(%s) gid=%ld(%s)\n", pwnam, user, grnam, group); +-#endif ++ printf("uid=%u(%s) gid=%u(%s)", uid, usr->pw_name, gid, grp->gr_name); ++ if (uid != euid) { ++ struct passwd *eusr; ++ printf(" euid=%u", euid); ++ eusr = getpwuid(euid); ++ if (eusr != NULL) { ++ printf("(%s)", eusr->pw_name); ++ } ++ } ++ if (gid != egid) { ++ struct group *egrp; ++ printf(" egid=%u", egid); ++ egrp = getgrgid(egid); ++ if (egrp != NULL) { ++ printf("(%s)", egrp->gr_name); ++ } ++ } ++ printf(" groups="); ++ print_groups(flags, ','); ++ } + ++#ifdef CONFIG_SELINUX ++ if (is_flask_enabled_flag) ++ { ++ security_id_t mysid = getsecsid(); ++ char context[80]; ++ int len = sizeof(context); ++ ++ context[0] = '\0'; ++ if (security_sid_to_context(mysid, len, &len)) { ++ strcpy(context, "unknown"); ++ } ++ printf(" context=%s", context); + } ++#endif + ++ putchar('\n'); + bb_fflush_stdout_and_exit(0); + } +Index: include/applets.h +=================================================================== +RCS file: /var/cvs/busybox/include/applets.h,v +retrieving revision 1.113 +diff -u -r1.113 applets.h +--- a/include/applets.h 6 Apr 2004 16:59:43 -0000 1.113 ++++ b/include/applets.h 1 May 2004 11:39:06 -0000 +@@ -232,6 +232,9 @@ + #ifdef CONFIG_GREP + APPLET(grep, grep_main, _BB_DIR_BIN, _BB_SUID_NEVER) + #endif ++#if defined(CONFIG_FEATURE_ID_GROUPS_ALIAS) ++ APPLET(groups, id_main, _BB_DIR_USR_BIN, _BB_SUID_NEVER) ++#endif + #ifdef CONFIG_GUNZIP + APPLET(gunzip, gunzip_main, _BB_DIR_BIN, _BB_SUID_NEVER) + #endif +Index: include/usage.h +=================================================================== +RCS file: /var/cvs/busybox/include/usage.h,v +retrieving revision 1.207 +diff -u -r1.207 usage.h +--- a/include/usage.h 14 Apr 2004 17:59:21 -0000 1.207 ++++ b/include/usage.h 1 May 2004 11:39:10 -0000 +@@ -800,6 +800,16 @@ + "$ grep ^[rR]oo. /etc/passwd\n" \ + "root:x:0:0:root:/root:/bin/bash\n" + ++#define groups_trivial_usage \ ++ " [USERNAME]" ++#define groups_full_usage \ ++ "Print all group names that USERNAME is a member of." ++#define groups_example_usage \ ++ "$ groups\n" \ ++ "andersen users\n" \ ++ "$ groups tjw\n" \ ++ "tjw users\n" ++ + #define gunzip_trivial_usage \ + "[OPTION]... FILE" + #define gunzip_full_usage \ +@@ -1035,7 +1045,7 @@ + #endif + + #define id_trivial_usage \ +- "[OPTIONS]... [USERNAME]" ++ "[-Ggu[nr]]] [USERNAME]" + #define id_full_usage \ + "Print information for USERNAME or the current user\n\n" \ + "Options:\n" \ +@@ -1043,10 +1053,11 @@ + "\t-g\tprints only the group ID\n" \ + "\t-u\tprints only the user ID\n" \ + "\t-n\tprint a name instead of a number\n" \ +- "\t-r\tprints the real user ID instead of the effective ID" ++ "\t-r\tprints the real user ID instead of the effective ID\n" \ ++ "\t-G\tprints all groups the user belongs to" + #define id_example_usage \ + "$ id\n" \ +- "uid=1000(andersen) gid=1000(andersen)\n" ++ "uid=1000(andersen) gid=1000(andersen) groups=1000(andersen),100(users)\n" + + #ifdef CONFIG_FEATURE_IFCONFIG_SLIP + #define USAGE_SIOCSKEEPALIVE(a) a -- cgit v1.2.3