+/* vi: set sw=4 ts=4: */
/*
* Mini chown/chmod/chgrp implementation for busybox
*
*
- * Copyright (C) 1999 by Lineo, inc.
+ * Copyright (C) 1999,2000,2001 by Lineo, inc.
* Written by Erik Andersen <andersen@lineo.com>, <andersee@debian.org>
*
* This program is free software; you can redistribute it and/or modify
*/
#include <stdio.h>
-#include <grp.h>
-#include <pwd.h>
-#include "internal.h"
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include "busybox.h"
+#define BB_DECLARE_EXTERN
+#define bb_need_invalid_option
+#define bb_need_too_few_args
+#include "messages.c"
-static uid_t uid=-1;
-static gid_t gid=-1;
+
+static long uid = -1;
+static long gid = -1;
static int whichApp;
-static char* invocationName=NULL;
-static mode_t mode=0644;
+static char *theMode = NULL;
#define CHGRP_APP 1
#define CHOWN_APP 2
#define CHMOD_APP 3
-static const char chgrp_usage[] = "[OPTION]... GROUP FILE...\n"
- "Change the group membership of each FILE to GROUP.\n"
- "\n\tOptions:\n" "\t-R\tchange files and directories recursively\n";
-static const char chown_usage[] = "[OPTION]... OWNER[.[GROUP] FILE...\n"
- "Change the owner and/or group of each FILE to OWNER and/or GROUP.\n"
- "\n\tOptions:\n" "\t-R\tchange files and directories recursively\n";
-static const char chmod_usage[] = "[-R] MODE[,MODE]... FILE...\n"
-"Each MODE is one or more of the letters ugoa, one of the symbols +-= and\n"
-"one or more of the letters rwxst.\n\n"
- "\t-R\tchange files and directories recursively.\n";
-
-
-static int fileAction(const char *fileName, struct stat* statbuf)
+static int fileAction(const char *fileName, struct stat *statbuf, void* junk)
{
- switch (whichApp) {
+ switch (whichApp) {
case CHGRP_APP:
case CHOWN_APP:
- if (chown(fileName, (whichApp==CHOWN_APP)? uid : statbuf->st_uid,
- (gid==-1)? statbuf->st_gid : gid) == 0) {
- return( TRUE);
- }
- break;
+ /* Don't use lchown for libc5 or glibc older then 2.1.x */
+#if (__GLIBC__ >= 2) && (__GLIBC_MINOR__ >= 1)
+ if (lchown
+ (fileName, (whichApp == CHOWN_APP) ? uid : statbuf->st_uid,
+ (gid == -1) ? statbuf->st_gid : gid) == 0)
+#else
+ if (chown
+ (fileName, (whichApp == CHOWN_APP) ? uid : statbuf->st_uid,
+ (gid == -1) ? statbuf->st_gid : gid) == 0)
+#endif
+ {
+ return (TRUE);
+ }
+ break;
case CHMOD_APP:
- if (chmod(fileName, mode) == 0)
- return( TRUE);
- break;
- }
- perror(fileName);
- return( FALSE);
+ /* Parse the specified modes */
+ if (parse_mode(theMode, &(statbuf->st_mode)) == FALSE) {
+ error_msg_and_die( "unknown mode: %s", theMode);
+ }
+ if (chmod(fileName, statbuf->st_mode) == 0)
+ return (TRUE);
+ break;
+ }
+ perror(fileName);
+ return (FALSE);
}
int chmod_chown_chgrp_main(int argc, char **argv)
{
- int recursiveFlag=FALSE;
- char *groupName;
-
- whichApp = (strcmp(*argv, "chown")==0)? CHOWN_APP : (strcmp(*argv, "chmod")==0)? CHMOD_APP : CHGRP_APP;
-
- if (argc < 2) {
- fprintf(stderr, "Usage: %s %s", *argv,
- (whichApp==TRUE)? chown_usage : chgrp_usage);
- exit( FALSE);
- }
- invocationName=*argv;
- argc--;
- argv++;
-
- /* Parse options */
- while (**argv == '-') {
- while (*++(*argv)) switch (**argv) {
- case 'R':
- recursiveFlag = TRUE;
- break;
- default:
- fprintf(stderr, "Unknown option: %c\n", **argv);
- exit( FALSE);
- }
- argc--;
+ int stopIt = FALSE;
+ int recursiveFlag = FALSE;
+ char *groupName=NULL;
+ char *p=NULL;
+
+ whichApp = (applet_name[2]=='o')? /* chown */
+ CHOWN_APP : (applet_name[2]=='m')? /* chmod */
+ CHMOD_APP : CHGRP_APP;
+
+ if (argc < 2)
+ show_usage();
argv++;
- }
-
- if ( whichApp == CHMOD_APP ) {
- /* Find the specified modes */
- mode = 0;
- if ( parse_mode(*argv, &mode) == FALSE ) {
- fprintf(stderr, "%s: Unknown mode: %s\n", invocationName, *argv);
- exit( FALSE);
+
+ /* Parse options */
+ while (--argc >= 0 && *argv && (**argv == '-')) {
+ while (stopIt==FALSE && *++(*argv)) {
+ switch (**argv) {
+ case 'R':
+ recursiveFlag = TRUE;
+ break;
+ default:
+ theMode=*argv-1;
+ stopIt = TRUE;
+ }
+ }
+ if (stopIt==TRUE)
+ break;
+ argv++;
}
- } else {
-
- /* Find the selected group */
- if ( whichApp==CHGRP_APP ) {
- groupName = *argv;
- gid = my_getgrnam(groupName);
- if (gid == -1)
- goto bad_group;
- } else {
- groupName = strchr(*argv, '.');
- if (groupName) {
- *groupName++ = '\0';
- gid = my_getgrnam(groupName);
- if (gid == -1)
- goto bad_group;
- } else
- gid = -1;
+
+ if (argc == 0 || *argv == NULL) {
+ error_msg(too_few_args);
}
+ if (whichApp == CHMOD_APP) {
+ if (theMode==NULL)
+ theMode = *argv;
+ } else {
- /* Find the selected user (if appropriate) */
- if (whichApp==CHOWN_APP) {
- uid = my_getpwnam(*argv);
- if (uid == -1) {
- fprintf(stderr, "%s: Unknown user name: %s\n", invocationName, *argv);
- exit( FALSE);
- }
+ /* Find the selected group */
+ if (whichApp == CHGRP_APP) {
+ groupName = *argv;
+ gid = strtoul(groupName, &p, 10); /* maybe it's already numeric */
+ if (groupName == p)
+ gid = my_getgrnam(groupName);
+ } else {
+ groupName = strchr(*argv, '.');
+ if (groupName == NULL)
+ groupName = strchr(*argv, ':');
+ if (groupName) {
+ *groupName++ = '\0';
+ gid = strtoul(groupName, &p, 10);
+ if (groupName == p)
+ gid = my_getgrnam(groupName);
+ } else
+ gid = -1;
+ }
+
+
+ /* Find the selected user (if appropriate) */
+ if (whichApp == CHOWN_APP) {
+ uid = strtoul(*argv, &p, 10); /* if numeric ... */
+ if (*argv == p)
+ uid = my_getpwnam(*argv);
+ }
}
- }
-
- /* Ok, ready to do the deed now */
- if (argc <= 1) {
- fprintf(stderr, "%s: too few arguments", invocationName);
- exit( FALSE);
- }
- while (argc-- > 1) {
- if (recursiveAction( *(++argv), recursiveFlag, TRUE, FALSE, fileAction, fileAction)==FALSE)
- exit( FALSE);
- }
- exit(TRUE);
-
-bad_group:
- fprintf(stderr, "%s: Unknown group name: %s\n", invocationName, groupName);
- exit( FALSE);
-}
+ /* Ok, ready to do the deed now */
+ if (argc < 1) {
+ error_msg_and_die(too_few_args);
+ }
+ while (argc-- > 1) {
+ if (recursive_action (*(++argv), recursiveFlag, FALSE, FALSE,
+ fileAction, fileAction, NULL) == FALSE)
+ return EXIT_FAILURE;
+ }
+ return EXIT_SUCCESS;
+}
+
+/*
+Local Variables:
+c-file-style: "linux"
+c-basic-offset: 4
+tab-width: 4
+End:
+*/
projects / oweals / busybox.git / blobdiff