put small subset of e2fsprogs back in the tree:

lsattr, chattr, fsck. Old e2fsprogs tree is in e2fsprogs/old_e2fsprogs/*.
2006-12-26 01:30:59 +00:00
parent 64c5402584
commit c4f623ef2a
142 changed files with 42719 additions and 0 deletions
--- a/e2fsprogs/old_e2fsprogs/e2p/feature.c
+++ b/e2fsprogs/old_e2fsprogs/e2p/feature.c
@ -0,0 +1,187 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * feature.c --- convert between features and strings
+ *
+ * Copyright (C) 1999  Theodore Ts'o <tytso@mit.edu>
+ *
+ * This file can be redistributed under the terms of the GNU Library General
+ * Public License
+ *
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+#include <errno.h>
+
+#include "e2p.h"
+
+struct feature {
+	int		compat;
+	unsigned int	mask;
+	const char	*string;
+};
+
+static const struct feature feature_list[] = {
+	{	E2P_FEATURE_COMPAT, EXT2_FEATURE_COMPAT_DIR_PREALLOC,
+			"dir_prealloc" },
+	{	E2P_FEATURE_COMPAT, EXT3_FEATURE_COMPAT_HAS_JOURNAL,
+			"has_journal" },
+	{	E2P_FEATURE_COMPAT, EXT2_FEATURE_COMPAT_IMAGIC_INODES,
+			"imagic_inodes" },
+	{	E2P_FEATURE_COMPAT, EXT2_FEATURE_COMPAT_EXT_ATTR,
+			"ext_attr" },
+	{	E2P_FEATURE_COMPAT, EXT2_FEATURE_COMPAT_DIR_INDEX,
+			"dir_index" },
+	{	E2P_FEATURE_COMPAT, EXT2_FEATURE_COMPAT_RESIZE_INODE,
+			"resize_inode" },
+	{	E2P_FEATURE_RO_INCOMPAT, EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER,
+			"sparse_super" },
+	{	E2P_FEATURE_RO_INCOMPAT, EXT2_FEATURE_RO_COMPAT_LARGE_FILE,
+			"large_file" },
+	{	E2P_FEATURE_INCOMPAT, EXT2_FEATURE_INCOMPAT_COMPRESSION,
+			"compression" },
+	{	E2P_FEATURE_INCOMPAT, EXT2_FEATURE_INCOMPAT_FILETYPE,
+			"filetype" },
+	{	E2P_FEATURE_INCOMPAT, EXT3_FEATURE_INCOMPAT_RECOVER,
+			"needs_recovery" },
+	{	E2P_FEATURE_INCOMPAT, EXT3_FEATURE_INCOMPAT_JOURNAL_DEV,
+			"journal_dev" },
+	{	E2P_FEATURE_INCOMPAT, EXT3_FEATURE_INCOMPAT_EXTENTS,
+			"extents" },
+	{	E2P_FEATURE_INCOMPAT, EXT2_FEATURE_INCOMPAT_META_BG,
+			"meta_bg" },
+	{	0, 0, 0 },
+};
+
+const char *e2p_feature2string(int compat, unsigned int mask)
+{
+	const struct feature *f;
+	static char buf[20];
+	char fchar;
+	int fnum;
+
+	for (f = feature_list; f->string; f++) {
+		if ((compat == f->compat) &&
+		    (mask == f->mask))
+			return f->string;
+	}
+	switch (compat) {
+	case E2P_FEATURE_COMPAT:
+		fchar = 'C';
+		break;
+	case E2P_FEATURE_INCOMPAT:
+		fchar = 'I';
+		break;
+	case E2P_FEATURE_RO_INCOMPAT:
+		fchar = 'R';
+		break;
+	default:
+		fchar = '?';
+		break;
+	}
+	for (fnum = 0; mask >>= 1; fnum++);
+		sprintf(buf, "FEATURE_%c%d", fchar, fnum);
+	return buf;
+}
+
+int e2p_string2feature(char *string, int *compat_type, unsigned int *mask)
+{
+	const struct feature *f;
+	char *eptr;
+	int num;
+
+	for (f = feature_list; f->string; f++) {
+		if (!strcasecmp(string, f->string)) {
+			*compat_type = f->compat;
+			*mask = f->mask;
+			return 0;
+		}
+	}
+	if (strncasecmp(string, "FEATURE_", 8))
+		return 1;
+
+	switch (string[8]) {
+	case 'c':
+	case 'C':
+		*compat_type = E2P_FEATURE_COMPAT;
+		break;
+	case 'i':
+	case 'I':
+		*compat_type = E2P_FEATURE_INCOMPAT;
+		break;
+	case 'r':
+	case 'R':
+		*compat_type = E2P_FEATURE_RO_INCOMPAT;
+		break;
+	default:
+		return 1;
+	}
+	if (string[9] == 0)
+		return 1;
+	num = strtol(string+9, &eptr, 10);
+	if (num > 32 || num < 0)
+		return 1;
+	if (*eptr)
+		return 1;
+	*mask = 1 << num;
+	return 0;
+}
+
+static inline char *skip_over_blanks(char *cp)
+{
+	while (*cp && isspace(*cp))
+		cp++;
+	return cp;
+}
+
+static inline char *skip_over_word(char *cp)
+{
+	while (*cp && !isspace(*cp) && *cp != ',')
+		cp++;
+	return cp;
+}
+
+/*
+ * Edit a feature set array as requested by the user.  The ok_array,
+ * if set, allows the application to limit what features the user is
+ * allowed to set or clear using this function.
+ */
+int e2p_edit_feature(const char *str, __u32 *compat_array, __u32 *ok_array)
+{
+	char	*cp, *buf, *next;
+	int	neg;
+	unsigned int	mask;
+	int		compat_type;
+
+	buf = xstrdup(str);
+	cp = buf;
+	while (cp && *cp) {
+		neg = 0;
+		cp = skip_over_blanks(cp);
+		next = skip_over_word(cp);
+		if (*next == 0)
+			next = 0;
+		else
+			*next = 0;
+		switch (*cp) {
+		case '-':
+		case '^':
+			neg++;
+		case '+':
+			cp++;
+			break;
+		}
+		if (e2p_string2feature(cp, &compat_type, &mask))
+			return 1;
+		if (ok_array && !(ok_array[compat_type] & mask))
+			return 1;
+		if (neg)
+			compat_array[compat_type] &= ~mask;
+		else
+			compat_array[compat_type] |= mask;
+		cp = next ? next+1 : 0;
+	}
+	return 0;
+}