[mirror_ubuntu-jammy-kernel.git] / drivers / accessibility / speakup / varhandlers.c

// SPDX-License-Identifier: GPL-2.0
#include <linux/ctype.h>
#include "spk_types.h"
#include "spk_priv.h"
#include "speakup.h"

static struct st_var_header var_headers[] = {
	{ "version", VERSION, VAR_PROC, NULL, NULL },
	{ "synth_name", SYNTH, VAR_PROC, NULL, NULL },
	{ "keymap", KEYMAP, VAR_PROC, NULL, NULL },
	{ "silent", SILENT, VAR_PROC, NULL, NULL },
	{ "punc_some", PUNC_SOME, VAR_PROC, NULL, NULL },
	{ "punc_most", PUNC_MOST, VAR_PROC, NULL, NULL },
	{ "punc_all", PUNC_ALL, VAR_PROC, NULL, NULL },
	{ "delimiters", DELIM, VAR_PROC, NULL, NULL },
	{ "repeats", REPEATS, VAR_PROC, NULL, NULL },
	{ "ex_num", EXNUMBER, VAR_PROC, NULL, NULL },
	{ "characters", CHARS, VAR_PROC, NULL, NULL },
	{ "synth_direct", SYNTH_DIRECT, VAR_PROC, NULL, NULL },
	{ "caps_start", CAPS_START, VAR_STRING, spk_str_caps_start, NULL },
	{ "caps_stop", CAPS_STOP, VAR_STRING, spk_str_caps_stop, NULL },
	{ "delay_time", DELAY, VAR_TIME, NULL, NULL },
	{ "trigger_time", TRIGGER, VAR_TIME, NULL, NULL },
	{ "jiffy_delta", JIFFY, VAR_TIME, NULL, NULL },
	{ "full_time", FULL, VAR_TIME, NULL, NULL },
	{ "flush_time", FLUSH, VAR_TIME, NULL, NULL },
	{ "spell_delay", SPELL_DELAY, VAR_NUM, &spk_spell_delay, NULL },
	{ "bleeps", BLEEPS, VAR_NUM, &spk_bleeps, NULL },
	{ "attrib_bleep", ATTRIB_BLEEP, VAR_NUM, &spk_attrib_bleep, NULL },
	{ "bleep_time", BLEEP_TIME, VAR_TIME, &spk_bleep_time, NULL },
	{ "cursor_time", CURSOR_TIME, VAR_TIME, NULL, NULL },
	{ "punc_level", PUNC_LEVEL, VAR_NUM, &spk_punc_level, NULL },
	{ "reading_punc", READING_PUNC, VAR_NUM, &spk_reading_punc, NULL },
	{ "say_control", SAY_CONTROL, VAR_NUM, &spk_say_ctrl, NULL },
	{ "say_word_ctl", SAY_WORD_CTL, VAR_NUM, &spk_say_word_ctl, NULL },
	{ "no_interrupt", NO_INTERRUPT, VAR_NUM, &spk_no_intr, NULL },
	{ "key_echo", KEY_ECHO, VAR_NUM, &spk_key_echo, NULL },
	{ "bell_pos", BELL_POS, VAR_NUM, &spk_bell_pos, NULL },
	{ "rate", RATE, VAR_NUM, NULL, NULL },
	{ "pitch", PITCH, VAR_NUM, NULL, NULL },
	{ "inflection", INFLECTION, VAR_NUM, NULL, NULL },
	{ "vol", VOL, VAR_NUM, NULL, NULL },
	{ "tone", TONE, VAR_NUM, NULL, NULL },
	{ "punct", PUNCT, VAR_NUM, NULL, NULL   },
	{ "voice", VOICE, VAR_NUM, NULL, NULL },
	{ "freq", FREQUENCY, VAR_NUM, NULL, NULL },
	{ "lang", LANG, VAR_NUM, NULL, NULL },
	{ "chartab", CHARTAB, VAR_PROC, NULL, NULL },
	{ "direct", DIRECT, VAR_NUM, NULL, NULL },
	{ "pause", PAUSE, VAR_STRING, spk_str_pause, NULL },
};

static struct st_var_header *var_ptrs[MAXVARS] = { NULL, NULL, NULL };

static struct punc_var_t punc_vars[] = {
	{ PUNC_SOME, 1 },
	{ PUNC_MOST, 2 },
	{ PUNC_ALL, 3 },
	{ DELIM, 4 },
	{ REPEATS, 5 },
	{ EXNUMBER, 6 },
	{ -1, -1 },
};

int spk_chartab_get_value(char *keyword)
{
	int value = 0;

	if (!strcmp(keyword, "ALPHA"))
		value = ALPHA;
	else if (!strcmp(keyword, "B_CTL"))
		value = B_CTL;
	else if (!strcmp(keyword, "WDLM"))
		value = WDLM;
	else if (!strcmp(keyword, "A_PUNC"))
		value = A_PUNC;
	else if (!strcmp(keyword, "PUNC"))
		value = PUNC;
	else if (!strcmp(keyword, "NUM"))
		value = NUM;
	else if (!strcmp(keyword, "A_CAP"))
		value = A_CAP;
	else if (!strcmp(keyword, "B_CAPSYM"))
		value = B_CAPSYM;
	else if (!strcmp(keyword, "B_SYM"))
		value = B_SYM;
	return value;
}

void speakup_register_var(struct var_t *var)
{
	static char nothing[2] = "\0";
	int i;
	struct st_var_header *p_header;

	BUG_ON(!var || var->var_id < 0 || var->var_id >= MAXVARS);
	if (!var_ptrs[0]) {
		for (i = 0; i < MAXVARS; i++) {
			p_header = &var_headers[i];
			var_ptrs[p_header->var_id] = p_header;
			p_header->data = NULL;
		}
	}
	p_header = var_ptrs[var->var_id];
	if (p_header->data)
		return;
	p_header->data = var;
	switch (p_header->var_type) {
	case VAR_STRING:
		spk_set_string_var(nothing, p_header, 0);
		break;
	case VAR_NUM:
	case VAR_TIME:
		spk_set_num_var(0, p_header, E_DEFAULT);
		break;
	default:
		break;
	}
}

void speakup_unregister_var(enum var_id_t var_id)
{
	struct st_var_header *p_header;

	BUG_ON(var_id < 0 || var_id >= MAXVARS);
	p_header = var_ptrs[var_id];
	p_header->data = NULL;
}

struct st_var_header *spk_get_var_header(enum var_id_t var_id)
{
	struct st_var_header *p_header;

	if (var_id < 0 || var_id >= MAXVARS)
		return NULL;
	p_header = var_ptrs[var_id];
	if (!p_header->data)
		return NULL;
	return p_header;
}

struct st_var_header *spk_var_header_by_name(const char *name)
{
	int i;

	if (!name)
		return NULL;

	for (i = 0; i < MAXVARS; i++) {
		if (strcmp(name, var_ptrs[i]->name) == 0)
			return var_ptrs[i];
	}
	return NULL;
}

struct var_t *spk_get_var(enum var_id_t var_id)
{
	BUG_ON(var_id < 0 || var_id >= MAXVARS);
	BUG_ON(!var_ptrs[var_id]);
	return var_ptrs[var_id]->data;
}
EXPORT_SYMBOL_GPL(spk_get_var);

struct punc_var_t *spk_get_punc_var(enum var_id_t var_id)
{
	struct punc_var_t *rv = NULL;
	struct punc_var_t *where;

	where = punc_vars;
	while ((where->var_id != -1) && (!rv)) {
		if (where->var_id == var_id)
			rv = where;
		else
			where++;
	}
	return rv;
}

/* handlers for setting vars */
int spk_set_num_var(int input, struct st_var_header *var, int how)
{
	int val;
	int *p_val = var->p_val;
	char buf[32];
	char *cp;
	struct var_t *var_data = var->data;

	if (!var_data)
		return -ENODATA;

	val = var_data->u.n.value;
	switch (how) {
	case E_NEW_DEFAULT:
		if (input < var_data->u.n.low || input > var_data->u.n.high)
			return -ERANGE;
		var_data->u.n.default_val = input;
		return 0;
	case E_DEFAULT:
		val = var_data->u.n.default_val;
		break;
	case E_SET:
		val = input;
		break;
	case E_INC:
		val += input;
		break;
	case E_DEC:
		val -= input;
		break;
	}

	if (val < var_data->u.n.low || val > var_data->u.n.high)
		return -ERANGE;

	var_data->u.n.value = val;
	if (var->var_type == VAR_TIME && p_val) {
		*p_val = msecs_to_jiffies(val);
		return 0;
	}
	if (p_val)
		*p_val = val;
	if (var->var_id == PUNC_LEVEL) {
		spk_punc_mask = spk_punc_masks[val];
		return 0;
	}
	if (var_data->u.n.multiplier != 0)
		val *= var_data->u.n.multiplier;
	val += var_data->u.n.offset;
	if (var->var_id < FIRST_SYNTH_VAR || !synth)
		return 0;
	if (synth->synth_adjust)
		return synth->synth_adjust(var);

	if (!var_data->u.n.synth_fmt)
		return 0;
	if (var->var_id == PITCH)
		cp = spk_pitch_buff;
	else
		cp = buf;
	if (!var_data->u.n.out_str)
		sprintf(cp, var_data->u.n.synth_fmt, (int)val);
	else
		sprintf(cp, var_data->u.n.synth_fmt,
			var_data->u.n.out_str[val]);
	synth_printf("%s", cp);
	return 0;
}

int spk_set_string_var(const char *page, struct st_var_header *var, int len)
{
	struct var_t *var_data = var->data;

	if (!var_data)
		return -ENODATA;
	if (len > MAXVARLEN)
		return -E2BIG;
	if (!len) {
		if (!var_data->u.s.default_val)
			return 0;
		if (!var->p_val)
			var->p_val = var_data->u.s.default_val;
		if (var->p_val != var_data->u.s.default_val)
			strcpy((char *)var->p_val, var_data->u.s.default_val);
		return -ERESTART;
	} else if (var->p_val) {
		strcpy((char *)var->p_val, page);
	} else {
		return -E2BIG;
	}
	return 0;
}

/*
 * spk_set_mask_bits sets or clears the punc/delim/repeat bits,
 * if input is null uses the defaults.
 * values for how: 0 clears bits of chars supplied,
 * 1 clears allk, 2 sets bits for chars
 */
int spk_set_mask_bits(const char *input, const int which, const int how)
{
	u_char *cp;
	short mask = spk_punc_info[which].mask;

	if (how & 1) {
		for (cp = (u_char *)spk_punc_info[3].value; *cp; cp++)
			spk_chartab[*cp] &= ~mask;
	}
	cp = (u_char *)input;
	if (!cp) {
		cp = spk_punc_info[which].value;
	} else {
		for (; *cp; cp++) {
			if (*cp < SPACE)
				break;
			if (mask < PUNC) {
				if (!(spk_chartab[*cp] & PUNC))
					break;
			} else if (spk_chartab[*cp] & B_NUM) {
				break;
			}
		}
		if (*cp)
			return -EINVAL;
		cp = (u_char *)input;
	}
	if (how & 2) {
		for (; *cp; cp++)
			if (*cp > SPACE)
				spk_chartab[*cp] |= mask;
	} else {
		for (; *cp; cp++)
			if (*cp > SPACE)
				spk_chartab[*cp] &= ~mask;
	}
	return 0;
}

char *spk_strlwr(char *s)
{
	char *p;

	if (!s)
		return NULL;

	for (p = s; *p; p++)
		*p = tolower(*p);
	return s;
}

char *spk_s2uchar(char *start, char *dest)
{
	int val;

	/* Do not replace with kstrtoul: here we need start to be updated */
	val = simple_strtoul(skip_spaces(start), &start, 10);
	if (*start == ',')
		start++;
	*dest = (u_char)val;
	return start;
}
Commit	Line	Data
64969228	1	// SPDX-License-Identifier: GPL-2.0
c6e3fd22 WH	2	#include <linux/ctype.h>
	3	#include "spk_types.h"
	4	#include "spk_priv.h"
	5	#include "speakup.h"
	6
	7	static struct st_var_header var_headers[] = {
a1277d85 WH	8	{ "version", VERSION, VAR_PROC, NULL, NULL },
	9	{ "synth_name", SYNTH, VAR_PROC, NULL, NULL },
	10	{ "keymap", KEYMAP, VAR_PROC, NULL, NULL },
	11	{ "silent", SILENT, VAR_PROC, NULL, NULL },
	12	{ "punc_some", PUNC_SOME, VAR_PROC, NULL, NULL },
	13	{ "punc_most", PUNC_MOST, VAR_PROC, NULL, NULL },
	14	{ "punc_all", PUNC_ALL, VAR_PROC, NULL, NULL },
	15	{ "delimiters", DELIM, VAR_PROC, NULL, NULL },
	16	{ "repeats", REPEATS, VAR_PROC, NULL, NULL },
	17	{ "ex_num", EXNUMBER, VAR_PROC, NULL, NULL },
	18	{ "characters", CHARS, VAR_PROC, NULL, NULL },
	19	{ "synth_direct", SYNTH_DIRECT, VAR_PROC, NULL, NULL },
ca2beaf8 ST	20	{ "caps_start", CAPS_START, VAR_STRING, spk_str_caps_start, NULL },
ca2beaf8 ST	21	{ "caps_stop", CAPS_STOP, VAR_STRING, spk_str_caps_stop, NULL },
a1277d85 WH	22	{ "delay_time", DELAY, VAR_TIME, NULL, NULL },
	23	{ "trigger_time", TRIGGER, VAR_TIME, NULL, NULL },
	24	{ "jiffy_delta", JIFFY, VAR_TIME, NULL, NULL },
	25	{ "full_time", FULL, VAR_TIME, NULL, NULL },
1f7c14af	26	{ "flush_time", FLUSH, VAR_TIME, NULL, NULL },
ca2beaf8 ST	27	{ "spell_delay", SPELL_DELAY, VAR_NUM, &spk_spell_delay, NULL },
	28	{ "bleeps", BLEEPS, VAR_NUM, &spk_bleeps, NULL },
	29	{ "attrib_bleep", ATTRIB_BLEEP, VAR_NUM, &spk_attrib_bleep, NULL },
	30	{ "bleep_time", BLEEP_TIME, VAR_TIME, &spk_bleep_time, NULL },
a1277d85	31	{ "cursor_time", CURSOR_TIME, VAR_TIME, NULL, NULL },
ca2beaf8 ST	32	{ "punc_level", PUNC_LEVEL, VAR_NUM, &spk_punc_level, NULL },
	33	{ "reading_punc", READING_PUNC, VAR_NUM, &spk_reading_punc, NULL },
	34	{ "say_control", SAY_CONTROL, VAR_NUM, &spk_say_ctrl, NULL },
	35	{ "say_word_ctl", SAY_WORD_CTL, VAR_NUM, &spk_say_word_ctl, NULL },
	36	{ "no_interrupt", NO_INTERRUPT, VAR_NUM, &spk_no_intr, NULL },
	37	{ "key_echo", KEY_ECHO, VAR_NUM, &spk_key_echo, NULL },
	38	{ "bell_pos", BELL_POS, VAR_NUM, &spk_bell_pos, NULL },
a1277d85 WH	39	{ "rate", RATE, VAR_NUM, NULL, NULL },
a1277d85 WH	40	{ "pitch", PITCH, VAR_NUM, NULL, NULL },
d97a9d7a	41	{ "inflection", INFLECTION, VAR_NUM, NULL, NULL },
a1277d85 WH	42	{ "vol", VOL, VAR_NUM, NULL, NULL },
	43	{ "tone", TONE, VAR_NUM, NULL, NULL },
	44	{ "punct", PUNCT, VAR_NUM, NULL, NULL },
	45	{ "voice", VOICE, VAR_NUM, NULL, NULL },
	46	{ "freq", FREQUENCY, VAR_NUM, NULL, NULL },
	47	{ "lang", LANG, VAR_NUM, NULL, NULL },
	48	{ "chartab", CHARTAB, VAR_PROC, NULL, NULL },
	49	{ "direct", DIRECT, VAR_NUM, NULL, NULL },
2610df41	50	{ "pause", PAUSE, VAR_STRING, spk_str_pause, NULL },
c6e3fd22 WH	51	};
c6e3fd22 WH	52
ab06e0f2	53	static struct st_var_header *var_ptrs[MAXVARS] = { NULL, NULL, NULL };
c6e3fd22 WH	54
c6e3fd22 WH	55	static struct punc_var_t punc_vars[] = {
a1277d85 WH	56	{ PUNC_SOME, 1 },
	57	{ PUNC_MOST, 2 },
	58	{ PUNC_ALL, 3 },
	59	{ DELIM, 4 },
	60	{ REPEATS, 5 },
	61	{ EXNUMBER, 6 },
	62	{ -1, -1 },
c6e3fd22 WH	63	};
c6e3fd22 WH	64
ca2beaf8	65	int spk_chartab_get_value(char *keyword)
c6e3fd22 WH	66	{
	67	int value = 0;
	68
	69	if (!strcmp(keyword, "ALPHA"))
	70	value = ALPHA;
	71	else if (!strcmp(keyword, "B_CTL"))
	72	value = B_CTL;
	73	else if (!strcmp(keyword, "WDLM"))
	74	value = WDLM;
	75	else if (!strcmp(keyword, "A_PUNC"))
	76	value = A_PUNC;
	77	else if (!strcmp(keyword, "PUNC"))
	78	value = PUNC;
	79	else if (!strcmp(keyword, "NUM"))
	80	value = NUM;
	81	else if (!strcmp(keyword, "A_CAP"))
	82	value = A_CAP;
	83	else if (!strcmp(keyword, "B_CAPSYM"))
	84	value = B_CAPSYM;
	85	else if (!strcmp(keyword, "B_SYM"))
	86	value = B_SYM;
	87	return value;
	88	}
	89
	90	void speakup_register_var(struct var_t *var)
	91	{
	92	static char nothing[2] = "\0";
	93	int i;
	94	struct st_var_header *p_header;
	95
	96	BUG_ON(!var \|\| var->var_id < 0 \|\| var->var_id >= MAXVARS);
ff52fc38	97	if (!var_ptrs[0]) {
c6e3fd22 WH	98	for (i = 0; i < MAXVARS; i++) {
	99	p_header = &var_headers[i];
	100	var_ptrs[p_header->var_id] = p_header;
	101	p_header->data = NULL;
	102	}
	103	}
	104	p_header = var_ptrs[var->var_id];
b8f107bc	105	if (p_header->data)
c6e3fd22 WH	106	return;
	107	p_header->data = var;
	108	switch (p_header->var_type) {
	109	case VAR_STRING:
ca2beaf8	110	spk_set_string_var(nothing, p_header, 0);
c6e3fd22 WH	111	break;
	112	case VAR_NUM:
	113	case VAR_TIME:
ca2beaf8	114	spk_set_num_var(0, p_header, E_DEFAULT);
c6e3fd22 WH	115	break;
	116	default:
	117	break;
	118	}
c6e3fd22 WH	119	}
	120
	121	void speakup_unregister_var(enum var_id_t var_id)
	122	{
	123	struct st_var_header *p_header;
8e69a811	124
c6e3fd22 WH	125	BUG_ON(var_id < 0 \|\| var_id >= MAXVARS);
	126	p_header = var_ptrs[var_id];
	127	p_header->data = NULL;
	128	}
	129
ca2beaf8	130	struct st_var_header *spk_get_var_header(enum var_id_t var_id)
c6e3fd22 WH	131	{
c6e3fd22 WH	132	struct st_var_header *p_header;
8e69a811	133
c6e3fd22 WH	134	if (var_id < 0 \|\| var_id >= MAXVARS)
	135	return NULL;
	136	p_header = var_ptrs[var_id];
ff52fc38	137	if (!p_header->data)
c6e3fd22 WH	138	return NULL;
	139	return p_header;
	140	}
	141
ca2beaf8	142	struct st_var_header spk_var_header_by_name(const char name)
c6e3fd22 WH	143	{
c6e3fd22 WH	144	int i;
65545eae DC	145
	146	if (!name)
	147	return NULL;
	148
	149	for (i = 0; i < MAXVARS; i++) {
	150	if (strcmp(name, var_ptrs[i]->name) == 0)
	151	return var_ptrs[i];
c6e3fd22	152	}
65545eae	153	return NULL;
c6e3fd22 WH	154	}
c6e3fd22 WH	155
ca2beaf8	156	struct var_t *spk_get_var(enum var_id_t var_id)
c6e3fd22 WH	157	{
c6e3fd22 WH	158	BUG_ON(var_id < 0 \|\| var_id >= MAXVARS);
a1277d85 WH	159	BUG_ON(!var_ptrs[var_id]);
a1277d85 WH	160	return var_ptrs[var_id]->data;
c6e3fd22	161	}
ca2beaf8	162	EXPORT_SYMBOL_GPL(spk_get_var);
c6e3fd22	163
ca2beaf8	164	struct punc_var_t *spk_get_punc_var(enum var_id_t var_id)
c6e3fd22 WH	165	{
	166	struct punc_var_t *rv = NULL;
	167	struct punc_var_t *where;
	168
	169	where = punc_vars;
ff52fc38	170	while ((where->var_id != -1) && (!rv)) {
c6e3fd22 WH	171	if (where->var_id == var_id)
	172	rv = where;
	173	else
	174	where++;
	175	}
	176	return rv;
	177	}
	178
	179	/* handlers for setting vars */
ca2beaf8	180	int spk_set_num_var(int input, struct st_var_header *var, int how)
c6e3fd22 WH	181	{
c6e3fd22 WH	182	int val;
c6e3fd22	183	int *p_val = var->p_val;
c6e3fd22 WH	184	char buf[32];
	185	char *cp;
	186	struct var_t *var_data = var->data;
6a48f88b	187
ff52fc38	188	if (!var_data)
6a48f88b	189	return -ENODATA;
c6e3fd22	190
d86b4a71 SS	191	val = var_data->u.n.value;
	192	switch (how) {
	193	case E_NEW_DEFAULT:
c6e3fd22	194	if (input < var_data->u.n.low \|\| input > var_data->u.n.high)
6a48f88b AS	195	return -ERANGE;
	196	var_data->u.n.default_val = input;
	197	return 0;
d86b4a71	198	case E_DEFAULT:
c6e3fd22	199	val = var_data->u.n.default_val;
d86b4a71 SS	200	break;
	201	case E_SET:
	202	val = input;
	203	break;
	204	case E_INC:
	205	val += input;
	206	break;
	207	case E_DEC:
	208	val -= input;
	209	break;
c6e3fd22	210	}
d86b4a71 SS	211
	212	if (val < var_data->u.n.low \|\| val > var_data->u.n.high)
	213	return -ERANGE;
	214
c6e3fd22	215	var_data->u.n.value = val;
b8f107bc	216	if (var->var_type == VAR_TIME && p_val) {
c6e3fd22	217	*p_val = msecs_to_jiffies(val);
d86b4a71	218	return 0;
c6e3fd22	219	}
b8f107bc	220	if (p_val)
c6e3fd22 WH	221	*p_val = val;
c6e3fd22 WH	222	if (var->var_id == PUNC_LEVEL) {
ca2beaf8	223	spk_punc_mask = spk_punc_masks[val];
d86b4a71	224	return 0;
c6e3fd22 WH	225	}
	226	if (var_data->u.n.multiplier != 0)
	227	val *= var_data->u.n.multiplier;
	228	val += var_data->u.n.offset;
ff52fc38	229	if (var->var_id < FIRST_SYNTH_VAR \|\| !synth)
d86b4a71 SS	230	return 0;
	231	if (synth->synth_adjust)
	232	return synth->synth_adjust(var);
1a9c77d8	233
c6e3fd22	234	if (!var_data->u.n.synth_fmt)
d86b4a71	235	return 0;
c6e3fd22	236	if (var->var_id == PITCH)
ca2beaf8	237	cp = spk_pitch_buff;
c6e3fd22 WH	238	else
	239	cp = buf;
	240	if (!var_data->u.n.out_str)
75ad9a33	241	sprintf(cp, var_data->u.n.synth_fmt, (int)val);
c6e3fd22	242	else
e2d55017 BD	243	sprintf(cp, var_data->u.n.synth_fmt,
e2d55017 BD	244	var_data->u.n.out_str[val]);
c6e3fd22	245	synth_printf("%s", cp);
d86b4a71	246	return 0;
c6e3fd22 WH	247	}
c6e3fd22 WH	248
ca2beaf8	249	int spk_set_string_var(const char page, struct st_var_header var, int len)
c6e3fd22	250	{
c6e3fd22	251	struct var_t *var_data = var->data;
6a48f88b	252
ff52fc38	253	if (!var_data)
6a48f88b	254	return -ENODATA;
c6e3fd22	255	if (len > MAXVARLEN)
6a48f88b	256	return -E2BIG;
c6e3fd22	257	if (!len) {
a1277d85 WH	258	if (!var_data->u.s.default_val)
a1277d85 WH	259	return 0;
c6e3fd22 WH	260	if (!var->p_val)
	261	var->p_val = var_data->u.s.default_val;
	262	if (var->p_val != var_data->u.s.default_val)
	263	strcpy((char *)var->p_val, var_data->u.s.default_val);
6a48f88b	264	return -ERESTART;
0dcb2124	265	} else if (var->p_val) {
a1277d85	266	strcpy((char *)var->p_val, page);
0dcb2124	267	} else {
6a48f88b	268	return -E2BIG;
0dcb2124	269	}
6a48f88b	270	return 0;
c6e3fd22 WH	271	}
c6e3fd22 WH	272
26ce8a4f WF	273	/*
26ce8a4f WF	274	* spk_set_mask_bits sets or clears the punc/delim/repeat bits,
c6e3fd22 WH	275	* if input is null uses the defaults.
c6e3fd22 WH	276	* values for how: 0 clears bits of chars supplied,
13d825ed AF	277	* 1 clears allk, 2 sets bits for chars
13d825ed AF	278	*/
ca2beaf8	279	int spk_set_mask_bits(const char *input, const int which, const int how)
c6e3fd22 WH	280	{
c6e3fd22 WH	281	u_char *cp;
ca2beaf8	282	short mask = spk_punc_info[which].mask;
8e69a811	283
114c9ec2	284	if (how & 1) {
ca2beaf8	285	for (cp = (u_char )spk_punc_info[3].value; cp; cp++)
c6e3fd22 WH	286	spk_chartab[*cp] &= ~mask;
	287	}
	288	cp = (u_char *)input;
0dcb2124	289	if (!cp) {
ca2beaf8	290	cp = spk_punc_info[which].value;
0dcb2124	291	} else {
1f2a55f2	292	for (; *cp; cp++) {
c6e3fd22 WH	293	if (*cp < SPACE)
	294	break;
	295	if (mask < PUNC) {
ff52fc38	296	if (!(spk_chartab[*cp] & PUNC))
c6e3fd22	297	break;
0dcb2124	298	} else if (spk_chartab[*cp] & B_NUM) {
c6e3fd22	299	break;
0dcb2124	300	}
c6e3fd22 WH	301	}
	302	if (*cp)
	303	return -EINVAL;
	304	cp = (u_char *)input;
	305	}
114c9ec2	306	if (how & 2) {
1f2a55f2	307	for (; *cp; cp++)
c6e3fd22 WH	308	if (*cp > SPACE)
	309	spk_chartab[*cp] \|= mask;
	310	} else {
1f2a55f2	311	for (; *cp; cp++)
c6e3fd22 WH	312	if (*cp > SPACE)
	313	spk_chartab[*cp] &= ~mask;
	314	}
	315	return 0;
	316	}
	317
ca2beaf8	318	char spk_strlwr(char s)
c6e3fd22 WH	319	{
c6e3fd22 WH	320	char *p;
8e69a811	321
ff52fc38	322	if (!s)
c6e3fd22 WH	323	return NULL;
	324
	325	for (p = s; *p; p++)
	326	p = tolower(p);
	327	return s;
	328	}
	329
ca2beaf8	330	char spk_s2uchar(char start, char *dest)
c6e3fd22	331	{
b62c535c	332	int val;
8e69a811	333
615cba35	334	/* Do not replace with kstrtoul: here we need start to be updated */
1627ab92	335	val = simple_strtoul(skip_spaces(start), &start, 10);
c6e3fd22 WH	336	if (*start == ',')
	337	start++;
	338	*dest = (u_char)val;
	339	return start;
	340	}