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authorRich Felker <dalias@aerifal.cx>2011-02-12 00:22:29 -0500
committerRich Felker <dalias@aerifal.cx>2011-02-12 00:22:29 -0500
commit0b44a0315b47dd8eced9f3b7f31580cf14bbfc01 (patch)
tree6eaef0d8a720fa3da580de87b647fff796fe80b3 /src/linux/initgroups.c
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initial check-in, version 0.5.0v0.5.0
Diffstat (limited to 'src/linux/initgroups.c')
-rw-r--r--src/linux/initgroups.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/src/linux/initgroups.c b/src/linux/initgroups.c
new file mode 100644
index 00000000..ef9bc10a
--- /dev/null
+++ b/src/linux/initgroups.c
@@ -0,0 +1,15 @@
+#include <sys/types.h>
+#include <unistd.h>
+#include <grp.h>
+#include <limits.h>
+
+int getgrouplist(const char *, gid_t, gid_t *, int *);
+int setgroups(size_t, const gid_t *);
+
+int initgroups(const char *user, gid_t gid)
+{
+ gid_t groups[NGROUPS_MAX];
+ int count;
+ if (getgrouplist(user, gid, groups, &count) < 0) return -1;
+ return setgroups(count, groups);
+}