1 files changed, 49 insertions, 0 deletions

diff --git a/libpwdgrp/uidgid_get.c b/libpwdgrp/uidgid_get.c
new file mode 100644
index 000000000..a2d02a84f
--- /dev/null
+++ b/libpwdgrp/uidgid_get.c
@@ -0,0 +1,49 @@
+#include "busybox.h"
+
+unsigned uidgid_get(struct bb_uidgid_t *u, const char *ug /*, unsigned dogrp */)
+{
+        struct passwd *pwd;
+        struct group *gr;
+        const char *g;
+
+        /* g = 0; if (dogrp) g = strchr(ug, ':'); */
+        g = strchr(ug, ':');
+        if (g) {
+                int sz = (++g) - ug;
+                char buf[sz];
+                safe_strncpy(buf, ug, sz);
+                pwd = getpwnam(buf);
+        } else
+                pwd = getpwnam(ug);
+        if (!pwd)
+                return 0;
+        u->uid = pwd->pw_uid;
+        u->gid = pwd->pw_gid;
+        if (g) {
+                gr = getgrnam(g);
+                if (!gr) return 0;
+                u->gid = gr->gr_gid;
+        }
+        return 1;
+}
+
+#if 0
+#include <stdio.h>
+int main()
+{
+        unsigned u;
+        struct bb_uidgid_t ug;
+        u = uidgid_get(&ug, "apache");
+        printf("%u = %u:%u\n", u, ug.uid, ug.gid);
+        ug.uid = ug.gid = 1111;
+        u = uidgid_get(&ug, "apache");
+        printf("%u = %u:%u\n", u, ug.uid, ug.gid);
+        ug.uid = ug.gid = 1111;
+        u = uidgid_get(&ug, "apache:users");
+        printf("%u = %u:%u\n", u, ug.uid, ug.gid);
+        ug.uid = ug.gid = 1111;
+        u = uidgid_get(&ug, "apache:users");
+        printf("%u = %u:%u\n", u, ug.uid, ug.gid);
+        return 0;
+}
+#endif