diff options
author | Denys Vlasenko | 2017-07-04 18:49:24 +0200 |
---|---|---|
committer | Denys Vlasenko | 2017-07-04 18:56:45 +0200 |
commit | a8cf9c5a3ffd1601872d1ab14c5be00fde29209c (patch) | |
tree | 20d9accf1cfeeea31a7252f6d12889160cf3aab0 /include/libbb.h | |
parent | 6a3bcf340aa9d7defc86f21d75fd9412c5b9f427 (diff) | |
download | busybox-a8cf9c5a3ffd1601872d1ab14c5be00fde29209c.zip busybox-a8cf9c5a3ffd1601872d1ab14c5be00fde29209c.tar.gz |
libbb: new function bb_getgroups() - allocating wrapper around getgroups()
function old new delta
bb_getgroups - 111 +111
nexpr 843 757 -86
------------------------------------------------------------------------------
(add/remove: 2/0 grow/shrink: 0/1 up/down: 111/-86) Total: 25 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'include/libbb.h')
-rw-r--r-- | include/libbb.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/libbb.h b/include/libbb.h index 557978e..1c9de3a 100644 --- a/include/libbb.h +++ b/include/libbb.h @@ -1033,6 +1033,15 @@ void die_if_bad_username(const char* name) FAST_FUNC; #else #define die_if_bad_username(name) ((void)(name)) #endif +/* + * Returns (-1) terminated malloced result of getgroups(). + * Reallocs group_array (useful for repeated calls). + * ngroups is an initial size of array. It is rounded up to 32 for realloc. + * ngroups is updated on return. + * ngroups can be NULL: bb_getgroups(NULL, NULL) is valid usage. + * Dies on errors (on Linux, only xrealloc can cause this, not internal getgroups call). + */ +gid_t *bb_getgroups(int *ngroups, gid_t *group_array) FAST_FUNC; #if ENABLE_FEATURE_UTMP void FAST_FUNC write_new_utmp(pid_t pid, int new_type, const char *tty_name, const char *username, const char *hostname); |