From 13f797da7f190e9ea52f2f3d235210b8a4963b21 Mon Sep 17 00:00:00 2001
From: The Android Open Source Project <initial-contribution@android.com>
Date: Tue, 10 Feb 2009 15:44:07 -0800
Subject: auto import from //branches/cupcake/...@130745

---
 toolbox/chown.c | 62 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 62 insertions(+)
 create mode 100644 toolbox/chown.c

(limited to 'toolbox/chown.c')

diff --git a/toolbox/chown.c b/toolbox/chown.c
new file mode 100644
index 0000000..13617db
--- /dev/null
+++ b/toolbox/chown.c
@@ -0,0 +1,62 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+#include <dirent.h>
+#include <errno.h>
+#include <pwd.h>
+#include <grp.h>
+
+#include <unistd.h>
+#include <time.h>
+
+int chown_main(int argc, char **argv)
+{
+    int i;
+
+    if (argc < 3) {
+        fprintf(stderr, "Usage: chown <USER>[.GROUP] <FILE1> [FILE2] ...\n");
+        return 10;
+    }
+
+    // Copy argv[1] to 'user' so we can truncate it at the period
+    // if a group id specified.
+    char user[32];
+    char *group = NULL;
+    strncpy(user, argv[1], sizeof(user));
+    if ((group = strchr(user, '.')) != NULL) {
+        *group++ = '\0';
+    }
+
+    // Lookup uid (and gid if specified)
+    struct passwd *pw;
+    struct group *grp = NULL;
+    uid_t uid;
+    gid_t gid = -1; // passing -1 to chown preserves current group
+
+    pw = getpwnam(user);
+    if (pw == NULL) {
+        fprintf(stderr, "No such user '%s'\n", user);
+        return 10;
+    }
+    uid = pw->pw_uid;
+
+    if (group != NULL) {
+        grp = getgrnam(group);
+        if (grp == NULL) {
+            fprintf(stderr, "No such group '%s'\n", group);
+            return 10;
+        }
+        gid = grp->gr_gid; 
+    }
+
+    for (i = 2; i < argc; i++) {
+        if (chown(argv[i], uid, gid) < 0) {
+            fprintf(stderr, "Unable to chmod %s: %s\n", argv[i], strerror(errno));
+            return 10;
+        }
+    }
+
+    return 0;
+}
+
-- 
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