104 lines
1.8 KiB
C
104 lines
1.8 KiB
C
/* See LICENSE file for copyright and license details. */
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#include <errno.h>
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#include <grp.h>
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#include <pwd.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include "util.h"
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static int rflag = 0;
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static uid_t uid = -1;
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static gid_t gid = -1;
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static int ret = 0;
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static char *chownf_name = "chown";
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static int (*chownf)(const char *, uid_t, gid_t) = chown;
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static void
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chownpwgr(const char *path, int depth)
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{
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if (chownf(path, uid, gid) < 0) {
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weprintf("%s %s:", chownf_name, path);
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ret = 1;
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}
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if (rflag)
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recurse(path, chownpwgr, depth);
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}
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static void
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usage(void)
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{
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eprintf("usage: %s [-h] [-R [-H | -L | -P]] [owner][:[group]] file...\n", argv0);
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}
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int
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main(int argc, char *argv[])
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{
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char *owner, *group, *end;
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struct passwd *pw;
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struct group *gr;
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ARGBEGIN {
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case 'h':
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chownf_name = "lchown";
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chownf = lchown;
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break;
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case 'r':
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case 'R':
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rflag = 1;
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break;
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case 'H':
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case 'L':
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case 'P':
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recurse_follow = ARGC();
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break;
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default:
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usage();
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} ARGEND;
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if (argc == 0)
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usage();
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if (recurse_follow == 'P') {
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chownf_name = "lchown";
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chownf = lchown;
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}
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owner = argv[0];
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argv++;
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argc--;
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if ((group = strchr(owner, ':')))
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*group++ = '\0';
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if (owner && *owner) {
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errno = 0;
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pw = getpwnam(owner);
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if (pw) {
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uid = pw->pw_uid;
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} else {
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if (errno != 0)
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eprintf("getpwnam %s:", owner);
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uid = strtoul(owner, &end, 10);
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if (*end != '\0')
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eprintf("getpwnam %s: no such user\n", owner);
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}
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}
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if (group && *group) {
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errno = 0;
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gr = getgrnam(group);
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if (gr) {
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gid = gr->gr_gid;
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} else {
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if (errno != 0)
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eprintf("getgrnam %s:", group);
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gid = strtoul(group, &end, 10);
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if (*end != '\0')
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eprintf("getgrnam %s: no such group\n", group);
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}
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}
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for (; argc > 0; argc--, argv++)
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chownpwgr(argv[0], 0);
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return ret;
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}
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