diff options
| author | Eric Andersen <andersen@codepoet.org> | 2002-08-18 18:50:52 +0000 |
|---|---|---|
| committer | Eric Andersen <andersen@codepoet.org> | 2002-08-18 18:50:52 +0000 |
| commit | 160212fe2d074af5bdc25b219e2276576f52b6e3 (patch) | |
| tree | a18295e8f38e392f16191e4e8480a8caf25a66dc /libc/pwd_grp/getgrnam.c | |
| parent | ed43cbaf96c89d13675d2afeb8c73109982c64d9 (diff) | |
Yet more rework to make __getgrent and the functions that use it
reentrant...
-Erik
Diffstat (limited to 'libc/pwd_grp/getgrnam.c')
| -rw-r--r-- | libc/pwd_grp/getgrnam.c | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/libc/pwd_grp/getgrnam.c b/libc/pwd_grp/getgrnam.c index f33462498..10302aab2 100644 --- a/libc/pwd_grp/getgrnam.c +++ b/libc/pwd_grp/getgrnam.c @@ -25,6 +25,19 @@ #include <paths.h> #include "config.h" +#ifdef __UCLIBC_HAS_THREADS__ +#include <pthread.h> +static pthread_mutex_t mylock = PTHREAD_MUTEX_INITIALIZER; +# define LOCK pthread_mutex_lock(&mylock) +# define UNLOCK pthread_mutex_unlock(&mylock); +#else +# define LOCK +# define UNLOCK +#endif +static char *line_buff = NULL; +static char **members = NULL; + + struct group *getgrnam(const char *name) { int grp_fd; @@ -38,12 +51,15 @@ struct group *getgrnam(const char *name) if ((grp_fd = open(_PATH_GROUP, O_RDONLY)) < 0) return NULL; - while ((group = __getgrent(grp_fd)) != NULL) + LOCK; + while ((group = __getgrent(grp_fd, line_buff, members)) != NULL) if (!strcmp(group->gr_name, name)) { close(grp_fd); + UNLOCK; return group; } close(grp_fd); + UNLOCK; return NULL; } |