67 lines
1.3 KiB
C
67 lines
1.3 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 <stdbool.h>
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#include <stdio.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 void chownpwgr(const char *);
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static bool rflag = false;
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static struct passwd *pw = NULL;
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static struct group *gr = NULL;
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int
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main(int argc, char *argv[])
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{
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char c, *owner, *group;
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while((c = getopt(argc, argv, "Rr")) != -1)
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switch(c) {
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case 'R':
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case 'r':
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rflag = true;
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break;
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default:
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exit(EXIT_FAILURE);
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}
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if(optind == argc)
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eprintf("usage: %s [-Rr] [owner][:group] [file...]\n", argv[0]);
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owner = argv[optind++];
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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(errno != 0)
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eprintf("getpwnam %s:", owner);
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else if(!pw)
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eprintf("getpwnam %s: no such user\n", owner);
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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(errno != 0)
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eprintf("getgrnam %s:", group);
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else if(!gr)
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eprintf("getgrnam %s: no such group\n", group);
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}
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for(; optind < argc; optind++)
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chownpwgr(argv[optind]);
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return EXIT_SUCCESS;
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}
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void
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chownpwgr(const char *path)
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{
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if(chown(path, pw ? pw->pw_uid : -1, gr ? gr->gr_gid : -1) != 0)
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eprintf("chown %s:", path);
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if(rflag)
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recurse(path, chownpwgr);
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}
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