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authorGravatar Eric Andersen <andersen@codepoet.org>1999-10-13 18:56:42 +0000
committerGravatar Eric Andersen <andersen@codepoet.org>1999-10-13 18:56:42 +0000
commit1b61f41f577a247c7a9534c56966e796facf1494 (patch)
treea2008aca5c711f72c9b29b5b4372de074fc5da32 /coreutils/chmod.c
parent21943ce6416215ff1a2df7b5008460bf9099f478 (diff)
downloadbusybox-1b61f41f577a247c7a9534c56966e796facf1494.tar.gz
busybox-1b61f41f577a247c7a9534c56966e796facf1494.tar.bz2
More stuff
Diffstat (limited to 'coreutils/chmod.c')
-rw-r--r--coreutils/chmod.c161
1 files changed, 98 insertions, 63 deletions
diff --git a/coreutils/chmod.c b/coreutils/chmod.c
index 225c92d10..9f84d0d37 100644
--- a/coreutils/chmod.c
+++ b/coreutils/chmod.c
@@ -1,41 +1,54 @@
-#include <stdlib.h>
+/*
+ * Mini chmod implementation for busybox
+ *
+ * Copyright (C) 1998 by Erik Andersen <andersee@debian.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
#include <stdio.h>
-#include <unistd.h>
-#include <sys/stat.h>
+#include <grp.h>
+#include <pwd.h>
#include "internal.h"
-const char chmod_usage[] = "chmod [-R] mode file [file ...]\n"
-"\nmode may be an octal integer representing the bit pattern for the\n"
-"\tnew mode, or a symbolic value matching the pattern\n"
-"\t[ugoa]{+|-|=}[rwxst] .\n"
-"\t\tu:\tUser\n"
-"\t\tg:\tGroup\n"
-"\t\to:\tOthers\n"
-"\t\ta:\tAll\n"
-"\n"
-"\n+:\tAdd privilege\n"
-"\n-:\tRemove privilege\n"
-"\n=:\tSet privilege\n"
-"\n"
-"\t\tr:\tRead\n"
-"\t\tw:\tWrite\n"
-"\t\tx:\tExecute\n"
-"\t\ts:\tSet User ID\n"
-"\t\tt:\t\"Sticky\" Text\n"
-"\n"
-"\tModes may be concatenated, as in \"u=rwx,g=rx,o=rx,-t,-s\n"
-"\n"
-"\t-R:\tRecursively change the mode of all files and directories\n"
-"\t\tunder the argument directory.";
-
-int
-parse_mode(
- const char * s
-,mode_t * or
-,mode_t * and
-,int * group_execute)
+
+static mode_t mode=7777;
+
+
+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;
+ if ((stat(fileName, &statBuf) < 0) ||
+ (chmod(fileName, mode)) < 0) {
+ perror(fileName);
+ return( FALSE);
+ }
+ return( TRUE);
+}
+
+/* [ugoa]{+|-|=}[rwxstl] */
+int parse_mode( const char* s, mode_t* or, mode_t* and, int* group_execute)
{
- /* [ugoa]{+|-|=}[rwxstl] */
mode_t mode = 0;
mode_t groups = S_ISVTX;
char type;
@@ -45,7 +58,7 @@ parse_mode(
for ( ; ; ) {
switch ( c = *s++ ) {
case '\0':
- return -1;
+ return (FALSE);
case 'u':
groups |= S_ISUID|S_IRWXU;
continue;
@@ -69,10 +82,10 @@ parse_mode(
if ( c >= '0' && c <= '7' && mode == 0 && groups == S_ISVTX ) {
*and = 0;
*or = strtol(--s, 0, 010);
- return 0;
+ return (TRUE);
}
else
- return -1;
+ return (FALSE);
}
break;
}
@@ -93,7 +106,7 @@ parse_mode(
case 's':
if ( group_execute != 0 && (groups & S_IRWXG) ) {
if ( *group_execute < 0 )
- return -1;
+ return (FALSE);
if ( type != '-' ) {
mode |= S_IXGRP;
*group_execute = 1;
@@ -103,7 +116,7 @@ parse_mode(
continue;
case 'l':
if ( *group_execute > 0 )
- return -1;
+ return (FALSE);
if ( type != '-' ) {
*and &= ~S_IXGRP;
*group_execute = -1;
@@ -115,7 +128,7 @@ parse_mode(
mode |= S_ISVTX;
continue;
default:
- return -1;
+ return (FALSE);
}
break;
}
@@ -132,32 +145,54 @@ parse_mode(
break;
}
} while ( c == ',' );
- return 0;
+ return (TRUE);
}
-extern int
-chmod_main(struct FileInfo * i, int argc, char * * argv)
+
+int chmod_main(int argc, char **argv)
{
- i->andWithMode = S_ISVTX|S_ISUID|S_ISGID|S_IRWXU|S_IRWXG|S_IRWXO;
- i->orWithMode = 0;
-
- while ( argc >= 3 ) {
- if ( parse_mode(argv[1], &i->orWithMode, &i->andWithMode, 0)
- == 0 ) {
- argc--;
- argv++;
- }
- else if ( strcmp(argv[1], "-R") == 0 ) {
- i->recursive = 1;
- argc--;
- argv++;
- }
- else
- break;
- }
+ int recursiveFlag=FALSE;
+ mode_t andWithMode = S_ISVTX|S_ISUID|S_ISGID|S_IRWXU|S_IRWXG|S_IRWXO;
+ mode_t orWithMode = 0;
+ char *invocationName=*argv;
- i->changeMode = 1;
- i->complainInPostProcess = 1;
+ if (argc < 3) {
+ fprintf(stderr, "Usage: %s %s", invocationName, chmod_usage);
+ exit( FALSE);
+ }
+ 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--;
+ argv++;
+ }
+
+ /* Find the selected group */
+ if ( parse_mode(*argv, &orWithMode, &andWithMode, 0) == FALSE ) {
+ fprintf(stderr, "%s: Unknown mode: %s\n", invocationName, *argv);
+ exit( FALSE);
+ }
+ mode &= andWithMode;
+ mode |= orWithMode;
- return monadic_main(i, argc, argv);
+ /* Ok, ready to do the deed now */
+ if (argc <= 1) {
+ fprintf(stderr, "%s: too few arguments", invocationName);
+ exit( FALSE);
+ }
+ while (argc-- > 1) {
+ argv++;
+ recursiveAction( *argv, recursiveFlag, TRUE, fileAction, fileAction);
+ }
+ exit(TRUE);
}