Many files:

  Checkin of e2fsprogs 0.5b

1 files changed, 261 insertions, 0 deletions

diff --git a/misc/chattr.c b/misc/chattr.c
new file mode 100644
index 00000000..63c8108c
--- /dev/null
+++ b/misc/chattr.c
@@ -0,0 +1,261 @@
+/*
+ * chattr.c		- Change file attributes on an ext2 file system
+ *
+ * Copyright (C) 1993, 1994  Remy Card <card@masi.ibp.fr>
+ *                           Laboratoire MASI, Institut Blaise Pascal
+ *                           Universite Pierre et Marie Curie (Paris VI)
+ *
+ * This file can be redistributed under the terms of the GNU General
+ * Public License
+ */
+
+/*
+ * History:
+ * 93/10/30	- Creation
+ * 93/11/13	- Replace stat() calls by lstat() to avoid loops
+ * 94/02/27	- Integrated in Ted's distribution
+ */
+
+#include <dirent.h>
+#include <fcntl.h>
+#include <getopt.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/param.h>
+#include <sys/stat.h>
+#include <linux/ext2_fs.h>
+
+#include "et/com_err.h"
+#include "e2p/e2p.h"
+
+#include "../version.h"
+
+const char * program_name = "chattr";
+
+int add = 0;
+int rem = 0;
+int set = 0;
+int set_version = 0;
+
+unsigned long version;
+
+int recursive = 0;
+int verbose = 0;
+
+unsigned long af;
+unsigned long rf;
+unsigned long sf;
+
+static void volatile fatal_error (const char * fmt_string, int errcode)
+{
+	fprintf (stderr, fmt_string, program_name);
+	exit (errcode);
+}
+
+#define usage() fatal_error ("usage: %s [-RV] [-+=csu] [-v version] files...\n", \
+			     1)
+
+static int decode_arg (int * i, int argc, char ** argv)
+{
+	char * p;
+	char * tmp;
+
+	switch (argv[*i][0])
+	{
+	case '-':
+		for (p = &argv[*i][1]; *p; p++)
+			switch (*p)
+			{
+			case 'R':
+				recursive = 1;
+				break;
+			case 'S':
+				rf |= EXT2_SYNC_FL;
+				rem = 1;
+				break;
+			case 'V':
+				verbose = 1;
+				break;
+			case 'c':
+				rf |= EXT2_COMPR_FL;
+				rem = 1;
+				break;
+			case 's':
+				rf |= EXT2_SECRM_FL;
+				rem = 1;
+				break;
+			case 'u':
+				rf |= EXT2_UNRM_FL;
+				rem = 1;
+				break;
+			case 'v':
+				if (*i >= argc)
+					usage ();
+				(*i)++;
+				version = strtol (argv[*i], &tmp, 0);
+				if (*tmp)
+				{
+					com_err (program_name, 0,
+						 "bad version - %s\n", argv[*i]);
+					usage ();
+				}
+				set_version = 1;
+				break;
+			default:
+				fprintf (stderr, "%s: Unrecognized argument: %c\n",
+					 program_name, *p);
+				usage ();
+			}
+		break;
+	case '+':
+		add = 1;
+		for (p = &argv[*i][1]; *p; p++)
+			switch (*p)
+			{
+			case 'S':
+				af |= EXT2_SYNC_FL;
+				break;
+			case 'c':
+				af |= EXT2_COMPR_FL;
+				break;
+			case 's':
+				af |= EXT2_SECRM_FL;
+				break;
+			case 'u':
+				af |= EXT2_UNRM_FL;
+				break;
+			default:
+				usage ();
+			}
+		break;
+	case '=':
+		set = 1;
+		for (p = &argv[*i][1]; *p; p++)
+			switch (*p)
+			{
+			case 'S':
+				sf |= EXT2_SYNC_FL;
+				break;
+			case 'c':
+				sf |= EXT2_COMPR_FL;
+				break;
+			case 's':
+				sf |= EXT2_SECRM_FL;
+				break;
+			case 'u':
+				sf |= EXT2_UNRM_FL;
+				break;
+			default:
+				usage ();
+			}
+		break;
+	default:
+		return EOF;
+		break;
+	}
+	return 1;
+}
+
+static int chattr_dir_proc (const char *, struct dirent *, void *);
+
+static void change_attributes (const char * name)
+{
+	unsigned long flags;
+	struct stat st;
+
+	if (lstat (name, &st) == -1)
+	{
+		com_err (program_name, errno, "while stating %s", name);
+		return;
+	}
+	if (set)
+	{
+		if (verbose)
+		{
+			printf ("Flags of %s set as ", name);
+			print_flags (stdout, sf);
+			printf ("\n");
+		}
+		if (fsetflags (name, sf) == -1)
+			perror (name);
+	}
+	else
+	{
+		if (fgetflags (name, &flags) == -1)
+			com_err (program_name, errno,
+			         "while reading flags on %s", name);
+		else
+		{
+			if (rem)
+				flags &= ~rf;
+			if (add)
+				flags |= af;
+			if (verbose)
+			{
+				printf ("Flags of %s set as ", name);
+				print_flags (stdout, flags);
+				printf ("\n");
+			}
+			if (fsetflags (name, flags) == -1)
+				com_err (program_name, errno,
+				         "while setting flags on %s", name);
+		}
+	}
+	if (set_version)
+	{
+		if (verbose)
+			printf ("Version of %s set as %lu\n", name, version);
+		if (fsetversion (name, version) == -1)
+			com_err (program_name, errno,
+			         "while setting version on %s", name);
+	}
+	if (S_ISDIR(st.st_mode) && recursive)
+		iterate_on_dir (name, chattr_dir_proc, (void *) NULL);
+}
+
+static int chattr_dir_proc (const char * dir_name, struct dirent * de, void * private)
+{
+	char path[MAXPATHLEN];
+
+	if (strcmp (de->d_name, ".") && strcmp (de->d_name, ".."))
+	{
+		sprintf (path, "%s/%s", dir_name, de->d_name);
+		change_attributes (path);
+	}
+	return 0;
+}
+
+void main (int argc, char ** argv)
+{
+	int i, j;
+	int end_arg = 0;
+
+	fprintf (stderr, "chattr %s, %s for EXT2 FS %s, %s\n",
+		 E2FSPROGS_VERSION, E2FSPROGS_DATE,
+		 EXT2FS_VERSION, EXT2FS_DATE);
+	if (argc && *argv)
+		program_name = *argv;
+	i = 1;
+	while (i < argc && !end_arg)
+	{
+		if (decode_arg (&i, argc, argv) == EOF)
+			end_arg = 1;
+		else
+			i++;
+	}
+	if (i >= argc)
+		usage ();
+	if (set && (add || rem))
+	{
+		fprintf (stderr, "= is incompatible with - and +\n");
+		exit (1);
+	}
+	if (!(add || rem || set))
+	{
+		fprintf (stderr, "Must use =, - or +\n");
+		exit (1);
+	}
+	for (j = i; j < argc; j++)
+		change_attributes (argv[j]);
+}