X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=chown.c;h=a656072041b9b2bc58dfee138fb6ca69debaad64;hb=774d135b66f4ba914ee8649ce6e8c3f7d3e36c35;hp=bcaeea38e5daf9482dfd595ff57cc235073938a2;hpb=2ce1edcf544ac675e6762c9861a6b918401ea716;p=oweals%2Fbusybox.git

diff --git a/chown.c b/chown.c
index bcaeea38e..a65607204 100644
--- a/chown.c
+++ b/chown.c
@@ -1,7 +1,10 @@
+/* vi: set sw=4 ts=4: */
 /*
- * Mini chown/chgrp implementation for busybox
+ * Mini chown/chmod/chgrp implementation for busybox
  *
- * Copyright (C) 1998 by Erik Andersen <andersee@debian.org>
+ *
+ * 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
  * it under the terms of the GNU General Public License as published by
@@ -20,103 +23,91 @@
  */
 
 #include <stdio.h>
-#include <grp.h>
-#include <pwd.h>
-#include "internal.h"
-
-
-static int uid=-1;
-static int gid=0;
-static int chownApp;
-static char* invocationName=NULL;
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include "busybox.h"
 
+/* Don't use lchown for libc5 or glibc older then 2.1.x */
+#if (__GLIBC__ <= 2) && (__GLIBC_MINOR__ < 1)
+#define lchown	chown
+#endif
 
-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 long uid;
+static long gid;
 
+static int (*chown_func)() = chown;
 
-
-static int fileAction(const char *fileName)
+static int fileAction(const char *fileName, struct stat *statbuf, void* junk)
 {
-    struct stat statBuf;
-    if ((stat(fileName, &statBuf) < 0) || 
-	    (chown(fileName, 
-		   ((chownApp==TRUE)? uid: statBuf.st_uid), 
-		   gid) < 0)) { 
+	if (chown_func(fileName, uid, (gid == -1) ? statbuf->st_gid : gid) == 0) {
+		return (TRUE);
+	}
 	perror(fileName);
-	return( TRUE);
-    }
-    return( FALSE);
+	return (FALSE);
 }
 
 int chown_main(int argc, char **argv)
 {
-    struct group *grp;
-    struct passwd *pwd;
-    int recursiveFlag=FALSE;
-    char *groupName;
+	int opt;
+	int recursiveFlag = FALSE,
+		noderefFlag = FALSE;
+	char *groupName=NULL;
+	char *p=NULL;
 
+	/* do normal option parsing */
+	while ((opt = getopt(argc, argv, "Rh")) > 0) {
+		switch (opt) {
+			case 'R':
+				recursiveFlag = TRUE;
+				break;
+			case 'h':
+				noderefFlag = TRUE;
+				break;
+			default:
+				show_usage();
+		}
+	}
 
-    chownApp = (strcmp(*argv, "chown")==0)? TRUE : FALSE;
-
-    if (argc < 2) {
-	fprintf(stderr, "Usage: %s %s", *argv, 
-		(chownApp==TRUE)? chown_usage : chgrp_usage);
-	exit( FALSE);
-    }
-    invocationName=*argv;
-    argc--;
-    argv++;
+	if (noderefFlag) chown_func = lchown;
 
-    /* Parse options */
-    while (**argv == '-') {
-	while (*++(*argv)) switch (**argv) {
-	    case 'R':
-		recursiveFlag = TRUE;
-		break;
-	    default:
-		fprintf(stderr, "Unknown option: %c\n", **argv);
-		exit( FALSE);
+	if (argc > optind && argc > 2 && argv[optind]) {
+		/* First, check if there is a group name here */
+		groupName = strchr(argv[optind], '.');
+		if (groupName == NULL)
+			groupName = strchr(argv[optind], ':');
+		if (groupName) {
+			*groupName++ = '\0';
+			gid = strtoul(groupName, &p, 10);
+			if (groupName == p)
+				gid = my_getgrnam(groupName);
+		} else {
+			gid = -1;
+		}
+		/* Now check for the username */
+		uid = strtoul(argv[optind], &p, 10);	/* Is is numeric? */
+		if (argv[optind] == p) {
+			uid = my_getpwnam(argv[optind]);
+		}
+	} else {
+		error_msg_and_die(too_few_args);
 	}
-	argc--;
-	argv++;
-    }
-    
-    /* Find the selected group */
-    groupName = strchr(*argv, '.');
-    if ( chownApp==TRUE && groupName )
-	*groupName++ = '\0';
-    else
-	groupName = *argv;
-    grp = getgrnam(groupName);
-    if (grp == NULL) {
-	fprintf(stderr, "%s: Unknown group name: %s\n", invocationName, groupName);
-	exit( FALSE);
-    }
-    gid = grp->gr_gid;
 
-    /* Find the selected user (if appropriate)  */
-    if (chownApp==TRUE) {
-	pwd = getpwnam(*argv);
-	if (pwd == NULL) {
-	    fprintf(stderr, "%s: Unknown user name: %s\n", invocationName, *argv);
-	    exit( FALSE);
+	/* Ok, ready to do the deed now */
+	while (++optind < argc) {
+		if (recursive_action (argv[optind], recursiveFlag, FALSE, FALSE, 
+					fileAction, fileAction, NULL) == FALSE) {
+			return EXIT_FAILURE;
+		}
 	}
-	uid = pwd->pw_uid;
-    }
+	return EXIT_SUCCESS;
 
-    /* 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);
 }
+
+/*
+Local Variables:
+c-file-style: "linux"
+c-basic-offset: 4
+tab-width: 4
+End:
+*/