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| author | Denis Vlasenko <vda.linux@googlemail.com> | 2007-02-26 22:47:42 +0000 |
|---|---|---|
| committer | Denis Vlasenko <vda.linux@googlemail.com> | 2007-02-26 22:47:42 +0000 |
| commit | cce38586aee7fe892ca1c837ee08a96bd3454ee9 (patch) | |
| tree | 2cce1db0f921fdc3e899641dd9c59f459ce4b07d /libpwdgrp/uidgid_get.c | |
| parent | f8ea0f3a66559a00c41fd7877bdc241973a60f8c (diff) | |
| download | busybox-w32-cce38586aee7fe892ca1c837ee08a96bd3454ee9.tar.gz busybox-w32-cce38586aee7fe892ca1c837ee08a96bd3454ee9.tar.bz2 busybox-w32-cce38586aee7fe892ca1c837ee08a96bd3454ee9.zip | |
start_stop_daemon: add -chuid support
Diffstat (limited to 'libpwdgrp/uidgid_get.c')
| -rw-r--r-- | libpwdgrp/uidgid_get.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/libpwdgrp/uidgid_get.c b/libpwdgrp/uidgid_get.c index 69c228e16..f10b40654 100644 --- a/libpwdgrp/uidgid_get.c +++ b/libpwdgrp/uidgid_get.c | |||
| @@ -27,6 +27,7 @@ ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |||
| 27 | 27 | ||
| 28 | #include "busybox.h" | 28 | #include "busybox.h" |
| 29 | 29 | ||
| 30 | /* Always sets uid and gid */ | ||
| 30 | int get_uidgid(struct bb_uidgid_t *u, const char *ug, int numeric_ok) | 31 | int get_uidgid(struct bb_uidgid_t *u, const char *ug, int numeric_ok) |
| 31 | { | 32 | { |
| 32 | struct passwd *pwd; | 33 | struct passwd *pwd; |
| @@ -53,6 +54,7 @@ int get_uidgid(struct bb_uidgid_t *u, const char *ug, int numeric_ok) | |||
| 53 | goto skip; | 54 | goto skip; |
| 54 | } | 55 | } |
| 55 | } | 56 | } |
| 57 | /* Either it is not numeric, or caller disallows numeric username */ | ||
| 56 | pwd = getpwnam(user); | 58 | pwd = getpwnam(user); |
| 57 | if (!pwd) | 59 | if (!pwd) |
| 58 | return 0; | 60 | return 0; |
| @@ -75,6 +77,40 @@ int get_uidgid(struct bb_uidgid_t *u, const char *ug, int numeric_ok) | |||
| 75 | return 1; | 77 | return 1; |
| 76 | } | 78 | } |
| 77 | 79 | ||
| 80 | /* chown-like: | ||
| 81 | * "user" sets uid only, | ||
| 82 | * ":group" sets gid only | ||
| 83 | * "user:" sets uid and gid (to user's primary group id) | ||
| 84 | * "user:group" sets uid and gid | ||
| 85 | * ('unset' uid or gid is actually set to -1) | ||
| 86 | */ | ||
| 87 | void parse_chown_usergroup_or_die(struct bb_uidgid_t *u, char *user_group) | ||
| 88 | { | ||
| 89 | char *group; | ||
| 90 | |||
| 91 | u->uid = -1; | ||
| 92 | u->gid = -1; | ||
| 93 | |||
| 94 | /* Check if there is a group name */ | ||
| 95 | group = strchr(user_group, '.'); /* deprecated? */ | ||
| 96 | if (!group) | ||
| 97 | group = strchr(user_group, ':'); | ||
| 98 | else | ||
| 99 | *group = ':'; /* replace '.' with ':' */ | ||
| 100 | |||
| 101 | /* Parse "user[:[group]]" */ | ||
| 102 | if (!group) { /* "user" */ | ||
| 103 | u->uid = get_ug_id(user_group, xuname2uid); | ||
| 104 | } else if (group == user_group) { /* ":group" */ | ||
| 105 | u->gid = get_ug_id(group + 1, xgroup2gid); | ||
| 106 | } else { | ||
| 107 | if (!group[1]) /* "user:" */ | ||
| 108 | *group = '\0'; | ||
| 109 | if (!get_uidgid(u, user_group, 1)) | ||
| 110 | bb_error_msg_and_die("unknown user/group %s", user_group); | ||
| 111 | } | ||
| 112 | } | ||
| 113 | |||
| 78 | #if 0 | 114 | #if 0 |
| 79 | #include <stdio.h> | 115 | #include <stdio.h> |
| 80 | int main() | 116 | int main() |