[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_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" },
477007e1	60
d7b701de TT	61	{ E2P_FEATURE_INCOMPAT, EXT2_FEATURE_INCOMPAT_COMPRESSION,
	62	"compression" },
	63	{ E2P_FEATURE_INCOMPAT, EXT2_FEATURE_INCOMPAT_FILETYPE,
	64	"filetype" },
	65	{ E2P_FEATURE_INCOMPAT, EXT3_FEATURE_INCOMPAT_RECOVER,
	66	"needs_recovery" },
c2204b32 TT	67	{ E2P_FEATURE_INCOMPAT, EXT3_FEATURE_INCOMPAT_JOURNAL_DEV,
c2204b32 TT	68	"journal_dev" },
ba1e1254 TT	69	{ E2P_FEATURE_INCOMPAT, EXT3_FEATURE_INCOMPAT_EXTENTS,
ba1e1254 TT	70	"extent" },
39dc1c45 TT	71	{ E2P_FEATURE_INCOMPAT, EXT3_FEATURE_INCOMPAT_EXTENTS,
39dc1c45 TT	72	"extents" },
c046ac7f TT	73	{ E2P_FEATURE_INCOMPAT, EXT2_FEATURE_INCOMPAT_META_BG,
c046ac7f TT	74	"meta_bg" },
477007e1 TT	75	{ E2P_FEATURE_INCOMPAT, EXT4_FEATURE_INCOMPAT_64BIT,
477007e1 TT	76	"64bit" },
c2d4300b JS	77	{ E2P_FEATURE_INCOMPAT, EXT4_FEATURE_INCOMPAT_FLEX_BG,
c2d4300b JS	78	"flex_bg"},
d7b701de TT	79	{ 0, 0, 0 },
	80	};
	81
03efde8a AD	82	static struct feature jrnl_feature_list[] = {
	83	{ E2P_FEATURE_COMPAT, JFS_FEATURE_COMPAT_CHECKSUM,
	84	"journal_checksum" },
	85
	86	{ E2P_FEATURE_INCOMPAT, JFS_FEATURE_INCOMPAT_REVOKE,
	87	"journal_incompat_revoke" },
	88	{ E2P_FEATURE_INCOMPAT, JFS_FEATURE_INCOMPAT_ASYNC_COMMIT,
	89	"journal_async_commit" },
	90	{ 0, 0, 0 },
	91	};
	92
36caf25f	93	const char *e2p_feature2string(int compat, unsigned int mask)
d7b701de TT	94	{
	95	struct feature *f;
	96	static char buf[20];
	97	char fchar;
	98	int fnum;
	99
	100	for (f = feature_list; f->string; f++) {
	101	if ((compat == f->compat) &&
	102	(mask == f->mask))
	103	return f->string;
	104	}
	105	switch (compat) {
	106	case E2P_FEATURE_COMPAT:
	107	fchar = 'C';
	108	break;
	109	case E2P_FEATURE_INCOMPAT:
	110	fchar = 'I';
	111	break;
	112	case E2P_FEATURE_RO_INCOMPAT:
	113	fchar = 'R';
	114	break;
	115	default:
	116	fchar = '?';
	117	break;
	118	}
	119	for (fnum = 0; mask >>= 1; fnum++);
	120	sprintf(buf, "FEATURE_%c%d", fchar, fnum);
	121	return buf;
	122	}
	123
36caf25f	124	int e2p_string2feature(char string, int compat_type, unsigned int *mask)
d7b701de TT	125	{
	126	struct feature *f;
	127	char *eptr;
	128	int num;
	129
	130	for (f = feature_list; f->string; f++) {
	131	if (!strcasecmp(string, f->string)) {
36caf25f	132	*compat_type = f->compat;
d7b701de TT	133	*mask = f->mask;
	134	return 0;
	135	}
	136	}
	137	if (strncasecmp(string, "FEATURE_", 8))
	138	return 1;
	139
	140	switch (string[8]) {
	141	case 'c':
	142	case 'C':
36caf25f	143	*compat_type = E2P_FEATURE_COMPAT;
d7b701de TT	144	break;
	145	case 'i':
	146	case 'I':
36caf25f	147	*compat_type = E2P_FEATURE_INCOMPAT;
d7b701de TT	148	break;
	149	case 'r':
	150	case 'R':
36caf25f	151	*compat_type = E2P_FEATURE_RO_INCOMPAT;
d7b701de TT	152	break;
	153	default:
	154	return 1;
	155	}
	156	if (string[9] == 0)
	157	return 1;
	158	num = strtol(string+9, &eptr, 10);
	159	if (num > 32 \|\| num < 0)
	160	return 1;
	161	if (*eptr)
	162	return 1;
	163	*mask = 1 << num;
	164	return 0;
	165	}
	166
03efde8a AD	167	const char *e2p_jrnl_feature2string(int compat, unsigned int mask)
	168	{
	169	struct feature *f;
	170	static char buf[20];
	171	char fchar;
	172	int fnum;
	173
	174	for (f = jrnl_feature_list; f->string; f++) {
	175	if ((compat == f->compat) &&
	176	(mask == f->mask))
	177	return f->string;
	178	}
	179	switch (compat) {
	180	case E2P_FEATURE_COMPAT:
	181	fchar = 'C';
	182	break;
	183	case E2P_FEATURE_INCOMPAT:
	184	fchar = 'I';
	185	break;
	186	case E2P_FEATURE_RO_INCOMPAT:
	187	fchar = 'R';
	188	break;
	189	default:
	190	fchar = '?';
	191	break;
	192	}
	193	for (fnum = 0; mask >>= 1; fnum++);
	194	sprintf(buf, "FEATURE_%c%d", fchar, fnum);
	195	return buf;
	196	}
	197
	198	int e2p_jrnl_string2feature(char string, int compat_type, unsigned int *mask)
	199	{
	200	struct feature *f;
	201	char *eptr;
	202	int num;
	203
	204	for (f = jrnl_feature_list; f->string; f++) {
	205	if (!strcasecmp(string, f->string)) {
	206	*compat_type = f->compat;
	207	*mask = f->mask;
	208	return 0;
	209	}
	210	}
	211	if (strncasecmp(string, "FEATURE_", 8))
	212	return 1;
	213
	214	switch (string[8]) {
	215	case 'c':
	216	case 'C':
	217	*compat_type = E2P_FEATURE_COMPAT;
	218	break;
	219	case 'i':
	220	case 'I':
	221	*compat_type = E2P_FEATURE_INCOMPAT;
	222	break;
	223	case 'r':
	224	case 'R':
	225	*compat_type = E2P_FEATURE_RO_INCOMPAT;
	226	break;
	227	default:
	228	return 1;
	229	}
	230	if (string[9] == 0)
231	return 1;
232	num = strtol(string+9, &eptr, 10);
233	if (num > 32 \|\| num < 0)
234	return 1;
235	if (*eptr)
236	return 1;
237	*mask = 1 << num;
238	return 0;
239	}
d7b701de TT	240	static char skip_over_blanks(char cp)
	241	{
	242	while (cp && isspace(cp))
	243	cp++;
	244	return cp;
	245	}
	246
36caf25f	247	static char skip_over_word(char cp)
d7b701de	248	{
944ab713	249	while (cp && !isspace(cp) && *cp != ',')
d7b701de TT	250	cp++;
	251	return cp;
	252	}
	253
944ab713 TT	254	/*
	255	* Edit a feature set array as requested by the user. The ok_array,
	256	* if set, allows the application to limit what features the user is
efc6f628	257	* allowed to set or clear using this function. If clear_ok_array is set,
7100351d	258	* then use it tell whether or not it is OK to clear a filesystem feature.
944ab713	259	*/
7100351d	260	int e2p_edit_feature2(const char str, __u32 compat_array, __u32 *ok_array,
efc6f628	261	__u32 clear_ok_array, int type_err,
7100351d	262	unsigned int *mask_err)
d7b701de	263	{
2711ca1c BB	264	char cp, buf, *next;
2711ca1c BB	265	int neg;
36caf25f TT	266	unsigned int mask;
36caf25f TT	267	int compat_type;
2711ca1c	268	int rc = 0;
d7b701de	269
7100351d TT	270	if (!clear_ok_array)
	271	clear_ok_array = ok_array;
	272
	273	if (type_err)
	274	*type_err = 0;
	275	if (mask_err)
	276	*mask_err = 0;
	277
d7b701de	278	buf = malloc(strlen(str)+1);
944ab713	279	if (!buf)
d7b701de	280	return 1;
d7b701de	281	strcpy(buf, str);
9dc6ad1e	282	for (cp = buf; cp && *cp; cp = next ? next+1 : 0) {
d7b701de TT	283	neg = 0;
	284	cp = skip_over_blanks(cp);
	285	next = skip_over_word(cp);
efc6f628	286
d7b701de TT	287	if (*next == 0)
	288	next = 0;
	289	else
	290	*next = 0;
9dc6ad1e TT	291
	292	if ((strcasecmp(cp, "none") == 0) \|\|
	293	(strcasecmp(cp, "clear") == 0)) {
	294	compat_array[0] = 0;
	295	compat_array[1] = 0;
	296	compat_array[2] = 0;
	297	continue;
	298	}
	299
d7b701de TT	300	switch (*cp) {
	301	case '-':
	302	case '^':
	303	neg++;
	304	case '+':
	305	cp++;
	306	break;
	307	}
2711ca1c BB	308	if (e2p_string2feature(cp, &compat_type, &mask)) {
	309	rc = 1;
	310	break;
	311	}
7100351d	312	if (neg) {
efc6f628	313	if (clear_ok_array &&
7100351d TT	314	!(clear_ok_array[compat_type] & mask)) {
	315	rc = 1;
	316	if (type_err)
efc6f628	317	*type_err = (compat_type \|
7100351d TT	318	E2P_FEATURE_NEGATE_FLAG);
	319	if (mask_err)
	320	*mask_err = mask;
	321	break;
	322	}
36caf25f	323	compat_array[compat_type] &= ~mask;
7100351d TT	324	} else {
	325	if (ok_array && !(ok_array[compat_type] & mask)) {
	326	rc = 1;
	327	if (type_err)
	328	*type_err = compat_type;
	329	if (mask_err)
	330	*mask_err = mask;
	331	break;
	332	}
36caf25f	333	compat_array[compat_type] \|= mask;
7100351d	334	}
d7b701de	335	}
2711ca1c BB	336	free(buf);
2711ca1c BB	337	return rc;
d7b701de	338	}
7100351d TT	339
	340	int e2p_edit_feature(const char str, __u32 compat_array, __u32 *ok_array)
	341	{
	342	return e2p_edit_feature2(str, compat_array, ok_array, 0, 0, 0);
	343	}
03efde8a AD	344
	345	#ifdef TEST_PROGRAM
	346	int main(int argc, char **argv)
	347	{
	348	int compat, compat2, i;
	349	unsigned int mask, mask2;
	350	const char *str;
	351	struct feature *f;
	352
	353	for (i = 0; i < 2; i++) {
	354	if (i == 0) {
	355	f = feature_list;
	356	printf("Feature list:\n");
	357	} else {
	358	printf("\nJournal feature list:\n");
	359	f = jrnl_feature_list;
	360	}
	361	for (; f->string; f++) {
	362	if (i == 0) {
	363	e2p_string2feature((char *)f->string, &compat,
	364	&mask);
	365	str = e2p_feature2string(compat, mask);
	366	} else {
	367	e2p_jrnl_string2feature((char *)f->string,
	368	&compat, &mask);
	369	str = e2p_jrnl_feature2string(compat, mask);
	370	}
	371
	372	printf("\tCompat = %d, Mask = %u, %s\n",
	373	compat, mask, f->string);
	374	if (strcmp(f->string, str)) {
	375	if (e2p_string2feature((char *) str, &compat2,
	376	&mask2) \|\|
	377	(compat2 != compat) \|\|
	378	(mask2 != mask)) {
	379	fprintf(stderr, "Failure!\n");
	380	exit(1);
	381	}
	382	}
	383	}
	384	}
	385	exit(0);
	386	}
	387	#endif