add new subdir for e2fsprogs

1 files changed, 305 insertions, 0 deletions

diff --git a/e2fsprogs/chattr.c b/e2fsprogs/chattr.c
new file mode 100644
index 0000000..7abc831
--- /dev/null
+++ b/e2fsprogs/chattr.c
@@ -0,0 +1,305 @@
+/*
+ * 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
+ * 98/12/29	- Ignore symlinks when working recursively (G M Sipe)
+ * 98/12/29	- Display version info only when -V specified (G M Sipe)
+ */
+
+#include <sys/types.h>
+#include <dirent.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <errno.h>
+#include <sys/param.h>
+#include <sys/stat.h>
+#include <ext2fs/ext2_fs.h>
+
+#ifdef __GNUC__
+#define EXT2FS_ATTR(x) __attribute__(x)
+#else
+#define EXT2FS_ATTR(x)
+#endif
+
+#ifndef S_ISLNK			/* So we can compile even with gcc-warn */
+# ifdef __S_IFLNK
+#  define S_ISLNK(mode)	 __S_ISTYPE((mode), __S_IFLNK)
+# else
+#  define S_ISLNK(mode)  0
+# endif
+#endif
+
+#include "e2fsbb.h"
+#include "e2p/e2p.h"
+
+static int add;
+static int rem;
+static int set;
+static int set_version;
+
+static unsigned long version;
+
+static int recursive;
+static int verbose;
+
+static unsigned long af;
+static unsigned long rf;
+static unsigned long sf;
+
+#ifdef _LFS64_LARGEFILE
+#define LSTAT		lstat64
+#define STRUCT_STAT	struct stat64
+#else
+#define LSTAT		lstat
+#define STRUCT_STAT	struct stat
+#endif
+
+#if 0
+static void fatal_error(const char * fmt_string, int errcode)
+{
+	fprintf (stderr, fmt_string, program_name);
+	exit (errcode);
+}
+
+#define usage() fatal_error(_("usage: %s [-RV] [-+=AacDdijsSu] [-v version] files...\n"), \
+			     1)
+#endif
+
+struct flags_char {
+	unsigned long	flag;
+	char 		optchar;
+};
+
+static const struct flags_char flags_array[] = {
+	{ EXT2_NOATIME_FL, 'A' },
+	{ EXT2_SYNC_FL, 'S' },
+	{ EXT2_DIRSYNC_FL, 'D' },
+	{ EXT2_APPEND_FL, 'a' },
+	{ EXT2_COMPR_FL, 'c' },
+	{ EXT2_NODUMP_FL, 'd' },
+	{ EXT2_IMMUTABLE_FL, 'i' },
+	{ EXT3_JOURNAL_DATA_FL, 'j' },
+	{ EXT2_SECRM_FL, 's' },
+	{ EXT2_UNRM_FL, 'u' },
+	{ EXT2_NOTAIL_FL, 't' },
+	{ EXT2_TOPDIR_FL, 'T' },
+	{ 0, 0 }
+};
+
+static unsigned long get_flag(char c)
+{
+	const struct flags_char *fp;
+	
+	for (fp = flags_array; fp->flag != 0; fp++) {
+		if (fp->optchar == c)
+			return fp->flag;
+	}
+	return 0;
+}
+
+
+static int decode_arg (int * i, int argc, char ** argv)
+{
+	char * p;
+	char * tmp;
+	unsigned long fl;
+
+	switch (argv[*i][0])
+	{
+	case '-':
+		for (p = &argv[*i][1]; *p; p++) {
+			if (*p == 'R') {
+				recursive = 1;
+				continue;
+			}
+			if (*p == 'V') {
+				verbose = 1;
+				continue;
+			}
+			if (*p == 'v') {
+				(*i)++;
+				if (*i >= argc)
+					usage ();
+				version = strtol (argv[*i], &tmp, 0);
+				if (*tmp) {
+					com_err (program_name, 0,
+						 _("bad version - %s\n"), 
+						 argv[*i]);
+					usage ();
+				}
+				set_version = 1;
+				continue;
+			}
+			if ((fl = get_flag(*p)) == 0)
+				usage();
+			rf |= fl;
+			rem = 1;
+		}
+		break;
+	case '+':
+		add = 1;
+		for (p = &argv[*i][1]; *p; p++) {
+			if ((fl = get_flag(*p)) == 0)
+				usage();
+			af |= fl;
+		}
+		break;
+	case '=':
+		set = 1;
+		for (p = &argv[*i][1]; *p; p++) {
+			if ((fl = get_flag(*p)) == 0)
+				usage();
+			sf |= fl;
+		}
+		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 trying to stat %s"), 
+			 name);
+		return;
+	}
+	if (S_ISLNK(st.st_mode) && recursive)
+		return;
+
+	/* Don't try to open device files, fifos etc.  We probably
+           ought to display an error if the file was explicitly given
+           on the command line (whether or not recursive was
+           requested).  */
+	if (!S_ISREG(st.st_mode) && !S_ISLNK(st.st_mode) &&
+	    !S_ISDIR(st.st_mode))
+		return;
+
+	if (set) {
+		if (verbose) {
+			printf (_("Flags of %s set as "), name);
+			print_flags (stdout, sf, 0);
+			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, 0);
+				printf ("\n");
+			}
+			if (!S_ISDIR(st.st_mode))
+				flags &= ~EXT2_DIRSYNC_FL;
+			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, NULL);
+}
+
+static int chattr_dir_proc (const char * dir_name, struct dirent * de,
+			    void * private EXT2FS_ATTR((unused)))
+{
+	if (strcmp (de->d_name, ".") && strcmp (de->d_name, "..")) {
+	        char *path;
+
+		path = malloc(strlen (dir_name) + 1 + strlen (de->d_name) + 1);
+		if (!path)
+			fatal_error(_("Couldn't allocate path variable "
+				    "in chattr_dir_proc"), 1);
+		sprintf (path, "%s/%s", dir_name, de->d_name);
+		change_attributes (path);
+		free(path);
+	}
+	return 0;
+}
+
+int chattr_main (int argc, char ** argv)
+{
+	int i, j;
+	int end_arg = 0;
+
+#ifdef ENABLE_NLS
+	setlocale(LC_MESSAGES, "");
+	setlocale(LC_CTYPE, "");
+	bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
+	textdomain(NLS_CAT_NAME);
+#endif
+#if 0
+	if (argc && *argv)
+		program_name = *argv;
+#endif
+	i = 1;
+	while (i < argc && !end_arg) {
+		/* '--' arg should end option processing */
+		if (strcmp(argv[i], "--") == 0) {
+			i++;
+			end_arg = 1;
+		} else if (decode_arg (&i, argc, argv) == EOF)
+			end_arg = 1;
+		else
+			i++;
+	}
+	if (i >= argc)
+		usage ();
+	if (set && (add || rem)) {
+		fputs(_("= is incompatible with - and +\n"), stderr);
+		exit (1);
+	}
+	if ((rf & af) != 0) {
+		fputs("Can't both set and unset same flag.\n", stderr);
+		exit (1);
+	}
+	if (!(add || rem || set || set_version)) {
+		fputs(_("Must use '-v', =, - or +\n"), stderr);
+		exit (1);
+	}
+#if 0
+	if (verbose)
+		fprintf (stderr, "chattr %s (%s)\n",
+			 E2FSPROGS_VERSION, E2FSPROGS_DATE);
+#endif
+	for (j = i; j < argc; j++)
+		change_attributes (argv[j]);
+	exit(0);
+}