[thirdparty/e2fsprogs.git] / lib / e2p / feature.c

/*
 * feature.c --- convert between features and strings
 *
 * Copyright (C) 1999  Theodore Ts'o <tytso@mit.edu>
 *
 * %Begin-Header%
 * This file may be redistributed under the terms of the GNU Library
 * General Public License, version 2.
 * %End-Header%
 */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <errno.h>

#include "e2p.h"
#include <ext2fs/ext2fs.h>
#include <ext2fs/jfs_user.h>

struct feature {
	int		compat;
	unsigned int	mask;
	const char	*string;
};

static 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_COMPAT, EXT2_FEATURE_COMPAT_LAZY_BG,
			"lazy_bg" },

	{	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_RO_INCOMPAT, EXT4_FEATURE_RO_COMPAT_HUGE_FILE,
			"huge_file" },
	{	E2P_FEATURE_RO_INCOMPAT, EXT4_FEATURE_RO_COMPAT_GDT_CSUM,
			"uninit_bg" },
	{	E2P_FEATURE_RO_INCOMPAT, EXT4_FEATURE_RO_COMPAT_GDT_CSUM,
			"uninit_groups" },
	{	E2P_FEATURE_RO_INCOMPAT, EXT4_FEATURE_RO_COMPAT_DIR_NLINK,
			"dir_nlink" },
	{	E2P_FEATURE_RO_INCOMPAT, EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE,
			"extra_isize" },
	{	E2P_FEATURE_RO_INCOMPAT, EXT4_FEATURE_RO_COMPAT_QUOTA,
			"quota" },
	{	E2P_FEATURE_RO_INCOMPAT, EXT4_FEATURE_RO_COMPAT_BIGALLOC,
			"bigalloc"},

	{	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,
			"extent" },
	{	E2P_FEATURE_INCOMPAT, EXT3_FEATURE_INCOMPAT_EXTENTS,
			"extents" },
	{	E2P_FEATURE_INCOMPAT, EXT2_FEATURE_INCOMPAT_META_BG,
			"meta_bg" },
	{	E2P_FEATURE_INCOMPAT, EXT4_FEATURE_INCOMPAT_64BIT,
			"64bit" },
	{       E2P_FEATURE_INCOMPAT, EXT4_FEATURE_INCOMPAT_FLEX_BG,
                        "flex_bg"},
	{	0, 0, 0 },
};

static struct feature jrnl_feature_list[] = {
       {       E2P_FEATURE_COMPAT, JFS_FEATURE_COMPAT_CHECKSUM,
                       "journal_checksum" },

       {       E2P_FEATURE_INCOMPAT, JFS_FEATURE_INCOMPAT_REVOKE,
                       "journal_incompat_revoke" },
       {       E2P_FEATURE_INCOMPAT, JFS_FEATURE_INCOMPAT_ASYNC_COMMIT,
                       "journal_async_commit" },
       {       0, 0, 0 },
};

const char *e2p_feature2string(int compat, unsigned int mask)
{
	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)
{
	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;
}

const char *e2p_jrnl_feature2string(int compat, unsigned int mask)
{
	struct feature  *f;
	static char buf[20];
	char	fchar;
	int	fnum;

	for (f = jrnl_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_jrnl_string2feature(char *string, int *compat_type, unsigned int *mask)
{
	struct feature  *f;
	char		*eptr;
	int		num;

	for (f = jrnl_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 char *skip_over_blanks(char *cp)
{
	while (*cp && isspace(*cp))
		cp++;
	return cp;
}

static 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.  If clear_ok_array is set,
 * then use it tell whether or not it is OK to clear a filesystem feature.
 */
int e2p_edit_feature2(const char *str, __u32 *compat_array, __u32 *ok_array,
		      __u32 *clear_ok_array, int *type_err,
		      unsigned int *mask_err)
{
	char		*cp, *buf, *next;
	int		neg;
	unsigned int	mask;
	int		compat_type;
	int		rc = 0;

	if (!clear_ok_array)
		clear_ok_array = ok_array;

	if (type_err)
		*type_err = 0;
	if (mask_err)
		*mask_err = 0;

	buf = malloc(strlen(str)+1);
	if (!buf)
		return 1;
	strcpy(buf, str);
	for (cp = buf; cp && *cp; cp = next ? next+1 : 0) {
		neg = 0;
		cp = skip_over_blanks(cp);
		next = skip_over_word(cp);

		if (*next == 0)
			next = 0;
		else
			*next = 0;

		if ((strcasecmp(cp, "none") == 0) ||
		    (strcasecmp(cp, "clear") == 0)) {
			compat_array[0] = 0;
			compat_array[1] = 0;
			compat_array[2] = 0;
			continue;
		}

		switch (*cp) {
		case '-':
		case '^':
			neg++;
		case '+':
			cp++;
			break;
		}
		if (e2p_string2feature(cp, &compat_type, &mask)) {
			rc = 1;
			break;
		}
		if (neg) {
			if (clear_ok_array &&
			    !(clear_ok_array[compat_type] & mask)) {
				rc = 1;
				if (type_err)
					*type_err = (compat_type |
						     E2P_FEATURE_NEGATE_FLAG);
				if (mask_err)
					*mask_err = mask;
				break;
			}
			compat_array[compat_type] &= ~mask;
		} else {
			if (ok_array && !(ok_array[compat_type] & mask)) {
				rc = 1;
				if (type_err)
					*type_err = compat_type;
				if (mask_err)
					*mask_err = mask;
				break;
			}
			compat_array[compat_type] |= mask;
		}
	}
	free(buf);
	return rc;
}

int e2p_edit_feature(const char *str, __u32 *compat_array, __u32 *ok_array)
{
	return e2p_edit_feature2(str, compat_array, ok_array, 0, 0, 0);
}

#ifdef TEST_PROGRAM
int main(int argc, char **argv)
{
	int compat, compat2, i;
	unsigned int mask, mask2;
	const char *str;
	struct feature *f;

	for (i = 0; i < 2; i++) {
		if (i == 0) {
			f = feature_list;
			printf("Feature list:\n");
		} else {
			printf("\nJournal feature list:\n");
			f = jrnl_feature_list;
		}
		for (; f->string; f++) {
			if (i == 0) {
				e2p_string2feature((char *)f->string, &compat,
						   &mask);
				str = e2p_feature2string(compat, mask);
			} else {
				e2p_jrnl_string2feature((char *)f->string,
							&compat, &mask);
				str = e2p_jrnl_feature2string(compat, mask);
			}

			printf("\tCompat = %d, Mask = %u, %s\n",
			       compat, mask, f->string);
			if (strcmp(f->string, str)) {
				if (e2p_string2feature((char *) str, &compat2,
						       &mask2) ||
				    (compat2 != compat) ||
				    (mask2 != mask)) {
					fprintf(stderr, "Failure!\n");
					exit(1);
				}
			}
		}
	}
	exit(0);
}
#endif
Commit	Line	Data
d7b701de TT	1	/*
d7b701de TT	2	* feature.c --- convert between features and strings
efc6f628	3	*
d7b701de	4	* Copyright (C) 1999 Theodore Ts'o <tytso@mit.edu>
efc6f628	5	*
543547a5 TT	6	* %Begin-Header%
	7	* This file may be redistributed under the terms of the GNU Library
	8	* General Public License, version 2.
	9	* %End-Header%
d7b701de TT	10	*/
	11
	12	#include <stdio.h>
	13	#include <stdlib.h>
	14	#include <string.h>
36caf25f	15	#include <ctype.h>
d7b701de TT	16	#include <errno.h>
	17
	18	#include "e2p.h"
03efde8a AD	19	#include <ext2fs/ext2fs.h>
03efde8a AD	20	#include <ext2fs/jfs_user.h>
d7b701de	21
d7b701de TT	22	struct feature {
	23	int compat;
	24	unsigned int mask;
36caf25f	25	const char *string;
d7b701de TT	26	};
d7b701de TT	27
e2207ce5	28	static struct feature feature_list[] = {
d7b701de TT	29	{ E2P_FEATURE_COMPAT, EXT2_FEATURE_COMPAT_DIR_PREALLOC,
	30	"dir_prealloc" },
	31	{ E2P_FEATURE_COMPAT, EXT3_FEATURE_COMPAT_HAS_JOURNAL,
	32	"has_journal" },
	33	{ E2P_FEATURE_COMPAT, EXT2_FEATURE_COMPAT_IMAGIC_INODES,
	34	"imagic_inodes" },
342d847d TT	35	{ E2P_FEATURE_COMPAT, EXT2_FEATURE_COMPAT_EXT_ATTR,
342d847d TT	36	"ext_attr" },
49d5ddcc TT	37	{ E2P_FEATURE_COMPAT, EXT2_FEATURE_COMPAT_DIR_INDEX,
	38	"dir_index" },
	39	{ E2P_FEATURE_COMPAT, EXT2_FEATURE_COMPAT_RESIZE_INODE,
	40	"resize_inode" },
f5fa2007 TT	41	{ E2P_FEATURE_COMPAT, EXT2_FEATURE_COMPAT_LAZY_BG,
f5fa2007 TT	42	"lazy_bg" },
477007e1	43
d7b701de TT	44	{ E2P_FEATURE_RO_INCOMPAT, EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER,
	45	"sparse_super" },
	46	{ E2P_FEATURE_RO_INCOMPAT, EXT2_FEATURE_RO_COMPAT_LARGE_FILE,
	47	"large_file" },
477007e1 TT	48	{ E2P_FEATURE_RO_INCOMPAT, EXT4_FEATURE_RO_COMPAT_HUGE_FILE,
477007e1 TT	49	"huge_file" },
2930dad2 TT	50	{ E2P_FEATURE_RO_INCOMPAT, EXT4_FEATURE_RO_COMPAT_GDT_CSUM,
2930dad2 TT	51	"uninit_bg" },
477007e1	52	{ E2P_FEATURE_RO_INCOMPAT, EXT4_FEATURE_RO_COMPAT_GDT_CSUM,
3542ba0d	53	"uninit_groups" },
477007e1 TT	54	{ E2P_FEATURE_RO_INCOMPAT, EXT4_FEATURE_RO_COMPAT_DIR_NLINK,
	55	"dir_nlink" },
	56	{ E2P_FEATURE_RO_INCOMPAT, EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE,
	57	"extra_isize" },
0edcc270 AK	58	{ E2P_FEATURE_RO_INCOMPAT, EXT4_FEATURE_RO_COMPAT_QUOTA,
0edcc270 AK	59	"quota" },
412376ef TT	60	{ E2P_FEATURE_RO_INCOMPAT, EXT4_FEATURE_RO_COMPAT_BIGALLOC,
412376ef TT	61	"bigalloc"},
477007e1	62
d7b701de TT	63	{ E2P_FEATURE_INCOMPAT, EXT2_FEATURE_INCOMPAT_COMPRESSION,
	64	"compression" },
	65	{ E2P_FEATURE_INCOMPAT, EXT2_FEATURE_INCOMPAT_FILETYPE,
	66	"filetype" },
	67	{ E2P_FEATURE_INCOMPAT, EXT3_FEATURE_INCOMPAT_RECOVER,
	68	"needs_recovery" },
c2204b32 TT	69	{ E2P_FEATURE_INCOMPAT, EXT3_FEATURE_INCOMPAT_JOURNAL_DEV,
c2204b32 TT	70	"journal_dev" },
ba1e1254 TT	71	{ E2P_FEATURE_INCOMPAT, EXT3_FEATURE_INCOMPAT_EXTENTS,
ba1e1254 TT	72	"extent" },
39dc1c45 TT	73	{ E2P_FEATURE_INCOMPAT, EXT3_FEATURE_INCOMPAT_EXTENTS,
39dc1c45 TT	74	"extents" },
c046ac7f TT	75	{ E2P_FEATURE_INCOMPAT, EXT2_FEATURE_INCOMPAT_META_BG,
c046ac7f TT	76	"meta_bg" },
477007e1 TT	77	{ E2P_FEATURE_INCOMPAT, EXT4_FEATURE_INCOMPAT_64BIT,
477007e1 TT	78	"64bit" },
c2d4300b JS	79	{ E2P_FEATURE_INCOMPAT, EXT4_FEATURE_INCOMPAT_FLEX_BG,
c2d4300b JS	80	"flex_bg"},
d7b701de TT	81	{ 0, 0, 0 },
	82	};
	83
03efde8a AD	84	static struct feature jrnl_feature_list[] = {
	85	{ E2P_FEATURE_COMPAT, JFS_FEATURE_COMPAT_CHECKSUM,
	86	"journal_checksum" },
	87
	88	{ E2P_FEATURE_INCOMPAT, JFS_FEATURE_INCOMPAT_REVOKE,
	89	"journal_incompat_revoke" },
	90	{ E2P_FEATURE_INCOMPAT, JFS_FEATURE_INCOMPAT_ASYNC_COMMIT,
	91	"journal_async_commit" },
	92	{ 0, 0, 0 },
	93	};
	94
36caf25f	95	const char *e2p_feature2string(int compat, unsigned int mask)
d7b701de TT	96	{
	97	struct feature *f;
	98	static char buf[20];
	99	char fchar;
	100	int fnum;
	101
	102	for (f = feature_list; f->string; f++) {
	103	if ((compat == f->compat) &&
	104	(mask == f->mask))
	105	return f->string;
	106	}
	107	switch (compat) {
	108	case E2P_FEATURE_COMPAT:
	109	fchar = 'C';
	110	break;
	111	case E2P_FEATURE_INCOMPAT:
	112	fchar = 'I';
	113	break;
	114	case E2P_FEATURE_RO_INCOMPAT:
	115	fchar = 'R';
	116	break;
	117	default:
	118	fchar = '?';
	119	break;
	120	}
	121	for (fnum = 0; mask >>= 1; fnum++);
	122	sprintf(buf, "FEATURE_%c%d", fchar, fnum);
	123	return buf;
	124	}
	125
36caf25f	126	int e2p_string2feature(char string, int compat_type, unsigned int *mask)
d7b701de TT	127	{
	128	struct feature *f;
	129	char *eptr;
	130	int num;
	131
	132	for (f = feature_list; f->string; f++) {
	133	if (!strcasecmp(string, f->string)) {
36caf25f	134	*compat_type = f->compat;
d7b701de TT	135	*mask = f->mask;
	136	return 0;
	137	}
	138	}
	139	if (strncasecmp(string, "FEATURE_", 8))
	140	return 1;
	141
	142	switch (string[8]) {
	143	case 'c':
	144	case 'C':
36caf25f	145	*compat_type = E2P_FEATURE_COMPAT;
d7b701de TT	146	break;
	147	case 'i':
	148	case 'I':
36caf25f	149	*compat_type = E2P_FEATURE_INCOMPAT;
d7b701de TT	150	break;
	151	case 'r':
	152	case 'R':
36caf25f	153	*compat_type = E2P_FEATURE_RO_INCOMPAT;
d7b701de TT	154	break;
	155	default:
	156	return 1;
	157	}
	158	if (string[9] == 0)
	159	return 1;
	160	num = strtol(string+9, &eptr, 10);
	161	if (num > 32 \|\| num < 0)
	162	return 1;
	163	if (*eptr)
	164	return 1;
	165	*mask = 1 << num;
	166	return 0;
	167	}
	168
03efde8a AD	169	const char *e2p_jrnl_feature2string(int compat, unsigned int mask)
	170	{
	171	struct feature *f;
	172	static char buf[20];
	173	char fchar;
	174	int fnum;
	175
	176	for (f = jrnl_feature_list; f->string; f++) {
	177	if ((compat == f->compat) &&
	178	(mask == f->mask))
	179	return f->string;
	180	}
	181	switch (compat) {
	182	case E2P_FEATURE_COMPAT:
	183	fchar = 'C';
	184	break;
	185	case E2P_FEATURE_INCOMPAT:
	186	fchar = 'I';
	187	break;
	188	case E2P_FEATURE_RO_INCOMPAT:
	189	fchar = 'R';
	190	break;
	191	default:
	192	fchar = '?';
	193	break;
	194	}
	195	for (fnum = 0; mask >>= 1; fnum++);
	196	sprintf(buf, "FEATURE_%c%d", fchar, fnum);
	197	return buf;
	198	}
	199
	200	int e2p_jrnl_string2feature(char string, int compat_type, unsigned int *mask)
	201	{
	202	struct feature *f;
	203	char *eptr;
	204	int num;
	205
	206	for (f = jrnl_feature_list; f->string; f++) {
	207	if (!strcasecmp(string, f->string)) {
	208	*compat_type = f->compat;
	209	*mask = f->mask;
	210	return 0;
	211	}
	212	}
	213	if (strncasecmp(string, "FEATURE_", 8))
	214	return 1;
	215
	216	switch (string[8]) {
	217	case 'c':
	218	case 'C':
	219	*compat_type = E2P_FEATURE_COMPAT;
	220	break;
	221	case 'i':
	222	case 'I':
	223	*compat_type = E2P_FEATURE_INCOMPAT;
	224	break;
	225	case 'r':
	226	case 'R':
	227	*compat_type = E2P_FEATURE_RO_INCOMPAT;
	228	break;
	229	default:
	230	return 1;
	231	}
	232	if (string[9] == 0)
233	return 1;
234	num = strtol(string+9, &eptr, 10);
235	if (num > 32 \|\| num < 0)
236	return 1;
237	if (*eptr)
238	return 1;
239	*mask = 1 << num;
240	return 0;
241	}
d7b701de TT	242	static char skip_over_blanks(char cp)
	243	{
	244	while (cp && isspace(cp))
	245	cp++;
	246	return cp;
	247	}
	248
36caf25f	249	static char skip_over_word(char cp)
d7b701de	250	{
944ab713	251	while (cp && !isspace(cp) && *cp != ',')
d7b701de TT	252	cp++;
	253	return cp;
	254	}
	255
944ab713 TT	256	/*
	257	* Edit a feature set array as requested by the user. The ok_array,
	258	* if set, allows the application to limit what features the user is
efc6f628	259	* allowed to set or clear using this function. If clear_ok_array is set,
7100351d	260	* then use it tell whether or not it is OK to clear a filesystem feature.
944ab713	261	*/
7100351d	262	int e2p_edit_feature2(const char str, __u32 compat_array, __u32 *ok_array,
efc6f628	263	__u32 clear_ok_array, int type_err,
7100351d	264	unsigned int *mask_err)
d7b701de	265	{
2711ca1c BB	266	char cp, buf, *next;
2711ca1c BB	267	int neg;
36caf25f TT	268	unsigned int mask;
36caf25f TT	269	int compat_type;
2711ca1c	270	int rc = 0;
d7b701de	271
7100351d TT	272	if (!clear_ok_array)
	273	clear_ok_array = ok_array;
	274
	275	if (type_err)
	276	*type_err = 0;
	277	if (mask_err)
	278	*mask_err = 0;
	279
d7b701de	280	buf = malloc(strlen(str)+1);
944ab713	281	if (!buf)
d7b701de	282	return 1;
d7b701de	283	strcpy(buf, str);
9dc6ad1e	284	for (cp = buf; cp && *cp; cp = next ? next+1 : 0) {
d7b701de TT	285	neg = 0;
	286	cp = skip_over_blanks(cp);
	287	next = skip_over_word(cp);
efc6f628	288
d7b701de TT	289	if (*next == 0)
	290	next = 0;
	291	else
	292	*next = 0;
9dc6ad1e TT	293
	294	if ((strcasecmp(cp, "none") == 0) \|\|
	295	(strcasecmp(cp, "clear") == 0)) {
	296	compat_array[0] = 0;
	297	compat_array[1] = 0;
	298	compat_array[2] = 0;
	299	continue;
	300	}
	301
d7b701de TT	302	switch (*cp) {
	303	case '-':
	304	case '^':
	305	neg++;
	306	case '+':
	307	cp++;
	308	break;
	309	}
2711ca1c BB	310	if (e2p_string2feature(cp, &compat_type, &mask)) {
	311	rc = 1;
	312	break;
	313	}
7100351d	314	if (neg) {
efc6f628	315	if (clear_ok_array &&
7100351d TT	316	!(clear_ok_array[compat_type] & mask)) {
	317	rc = 1;
	318	if (type_err)
efc6f628	319	*type_err = (compat_type \|
7100351d TT	320	E2P_FEATURE_NEGATE_FLAG);
	321	if (mask_err)
	322	*mask_err = mask;
	323	break;
	324	}
36caf25f	325	compat_array[compat_type] &= ~mask;
7100351d TT	326	} else {
	327	if (ok_array && !(ok_array[compat_type] & mask)) {
	328	rc = 1;
	329	if (type_err)
	330	*type_err = compat_type;
	331	if (mask_err)
	332	*mask_err = mask;
	333	break;
	334	}
36caf25f	335	compat_array[compat_type] \|= mask;
7100351d	336	}
d7b701de	337	}
2711ca1c BB	338	free(buf);
2711ca1c BB	339	return rc;
d7b701de	340	}
7100351d TT	341
	342	int e2p_edit_feature(const char str, __u32 compat_array, __u32 *ok_array)
	343	{
	344	return e2p_edit_feature2(str, compat_array, ok_array, 0, 0, 0);
	345	}
03efde8a AD	346
	347	#ifdef TEST_PROGRAM
	348	int main(int argc, char **argv)
	349	{
	350	int compat, compat2, i;
	351	unsigned int mask, mask2;
	352	const char *str;
	353	struct feature *f;
	354
	355	for (i = 0; i < 2; i++) {
	356	if (i == 0) {
	357	f = feature_list;
	358	printf("Feature list:\n");
	359	} else {
	360	printf("\nJournal feature list:\n");
	361	f = jrnl_feature_list;
	362	}
	363	for (; f->string; f++) {
	364	if (i == 0) {
	365	e2p_string2feature((char *)f->string, &compat,
	366	&mask);
	367	str = e2p_feature2string(compat, mask);
	368	} else {
	369	e2p_jrnl_string2feature((char *)f->string,
	370	&compat, &mask);
	371	str = e2p_jrnl_feature2string(compat, mask);
	372	}
	373
	374	printf("\tCompat = %d, Mask = %u, %s\n",
	375	compat, mask, f->string);
	376	if (strcmp(f->string, str)) {
	377	if (e2p_string2feature((char *) str, &compat2,
	378	&mask2) \|\|
	379	(compat2 != compat) \|\|
	380	(mask2 != mask)) {
	381	fprintf(stderr, "Failure!\n");
	382	exit(1);
	383	}
	384	}
	385	}
	386	}
	387	exit(0);
	388	}
	389	#endif