Added changelog entries for grep/sed/regex changes.

[oweals/busybox.git] / chmod_chown_chgrp.c

diff --git a/chmod_chown_chgrp.c b/chmod_chown_chgrp.c
index f037e9591870f7a6bde3257e4c69ff171e1a0fcb..d3e267827a15506f226fb97d3ad822c2e5dd4de1 100644 (file)
--- a/chmod_chown_chgrp.c
+++ b/chmod_chown_chgrp.c
@@ -3,7 +3,7 @@
  * Mini chown/chmod/chgrp implementation for busybox
  *
  *
- * Copyright (C) 1999 by Lineo, inc.
+ * Copyright (C) 1999,2000 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
@@ -25,6 +25,7 @@
 #include "internal.h"
 #define BB_DECLARE_EXTERN
 #define bb_need_invalid_option
+#define bb_need_too_few_args
 #include "messages.c"
 
 #include <stdio.h>
@@ -32,8 +33,8 @@
 #include <pwd.h>
 
 
-static uid_t uid = -1;
-static gid_t gid = -1;
+static unsigned long uid = -1;
+static unsigned long gid = -1;
 static int whichApp;
 static char *invocationName = NULL;
 static char *theMode = NULL;
@@ -43,24 +44,30 @@ static char *theMode = NULL;
 #define CHOWN_APP   2
 #define CHMOD_APP   3
 
-static const char chgrp_usage[] = "chgrp [OPTION]... GROUP FILE...\n\n"
-       "Change the group membership of each FILE to GROUP.\n"
-
-       "\nOptions:\n\t-R\tchange files and directories recursively\n";
+static const char chgrp_usage[] = "chgrp [OPTION]... GROUP FILE...\n"
+#ifndef BB_FEATURE_TRIVIAL_HELP
+       "\nChange the group membership of each FILE to GROUP.\n"
+       "\nOptions:\n\t-R\tChanges files and directories recursively.\n"
+#endif
+       ;
 static const char chown_usage[] =
-       "chown [OPTION]...  OWNER[.[GROUP] FILE...\n\n"
-       "Change the owner and/or group of each FILE to OWNER and/or GROUP.\n"
-
-       "\nOptions:\n\t-R\tchange files and directories recursively\n";
+       "chown [OPTION]...  OWNER[<.|:>[GROUP] FILE...\n"
+#ifndef BB_FEATURE_TRIVIAL_HELP
+       "\nChange the owner and/or group of each FILE to OWNER and/or GROUP.\n"
+       "\nOptions:\n\t-R\tChanges files and directories recursively.\n"
+#endif
+       ;
 static const char chmod_usage[] =
-       "chmod [-R] MODE[,MODE]... FILE...\n\n"
-       "Each MODE is one or more of the letters ugoa, one of the symbols +-= and\n"
-
+       "chmod [-R] MODE[,MODE]... FILE...\n"
+#ifndef BB_FEATURE_TRIVIAL_HELP
+       "\nEach MODE is one or more of the letters ugoa, one of the symbols +-= and\n"
        "one or more of the letters rwxst.\n\n"
-       "\nOptions:\n\t-R\tchange files and directories recursively.\n";
+       "\nOptions:\n\t-R\tChanges files and directories recursively.\n"
+#endif
+       ;
 
 
-static int fileAction(const char *fileName, struct stat *statbuf)
+static int fileAction(const char *fileName, struct stat *statbuf, void* junk)
 {
        switch (whichApp) {
        case CHGRP_APP:
@@ -94,40 +101,42 @@ static int fileAction(const char *fileName, struct stat *statbuf)
 int chmod_chown_chgrp_main(int argc, char **argv)
 {
        int recursiveFlag = FALSE;
-       char *groupName;
-       char *p;
+       char *groupName=NULL;
+       char *p=NULL;
        const char *appUsage;
 
-       whichApp =
-               (strcmp(*argv, "chown") == 0)? 
+       whichApp = (strcmp(*argv, "chown") == 0)? 
                        CHOWN_APP : (strcmp(*argv, "chmod") == 0)? 
                                CHMOD_APP : CHGRP_APP;
 
-       appUsage =
-               (whichApp == CHOWN_APP)? 
+       appUsage = (whichApp == CHOWN_APP)? 
                        chown_usage : (whichApp == CHMOD_APP) ? chmod_usage : chgrp_usage;
 
        if (argc < 2)
                usage(appUsage);
        invocationName = *argv;
-       argc--;
        argv++;
 
        /* Parse options */
-       while (**argv == '-') {
-               while (*++(*argv))
+       while (--argc >= 0 && *argv && (**argv == '-')) {
+               while (*++(*argv)) {
                        switch (**argv) {
-                       case 'R':
-                               recursiveFlag = TRUE;
-                               break;
-                       default:
-                               fprintf(stderr, invalid_option, invocationName, **argv);
-                               usage(appUsage);
+                               case 'R':
+                                       recursiveFlag = TRUE;
+                                       break;
+                               default:
+                                       fprintf(stderr, invalid_option, invocationName, **argv);
+                                       usage(appUsage);
                        }
-               argc--;
+               }
                argv++;
        }
 
+       if (argc == 0 || *argv == NULL) {
+               fprintf(stderr, too_few_args, invocationName);
+               usage(appUsage);
+       }
+
        if (whichApp == CHMOD_APP) {
                theMode = *argv;
        } else {
@@ -142,6 +151,8 @@ int chmod_chown_chgrp_main(int argc, char **argv)
                                goto bad_group;
                } else {
                        groupName = strchr(*argv, '.');
+                       if (groupName == NULL)
+                               groupName = strchr(*argv, ':');
                        if (groupName) {
                                *groupName++ = '\0';
                                gid = strtoul(groupName, &p, 10);
@@ -171,9 +182,8 @@ int chmod_chown_chgrp_main(int argc, char **argv)
                fatalError( "%s: too few arguments\n", invocationName);
        }
        while (argc-- > 1) {
-               if (recursiveAction
-                       (*(++argv), recursiveFlag, TRUE, FALSE, fileAction,
-                        fileAction) == FALSE)
+               if (recursiveAction (*(++argv), recursiveFlag, FALSE, FALSE, 
+                                       fileAction, fileAction, NULL) == FALSE)
                        exit(FALSE);
        }
        exit(TRUE);
@@ -181,3 +191,11 @@ int chmod_chown_chgrp_main(int argc, char **argv)
   bad_group:
        fatalError( "%s: unknown group name: %s\n", invocationName, groupName);
 }
+
+/*
+Local Variables:
+c-file-style: "linux"
+c-basic-offset: 4
+tab-width: 4
+End:
+*/