mirror of
https://github.com/pygos/init.git
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24c90b7700
- Do a getline() & process in rdline instead of doing a read per character and feeding it through a state machine. - Move splitkv to rdcfg.c, the only place where it is used Signed-off-by: David Oberhollenzer <david.oberhollenzer@tele2.at>
111 lines
2.5 KiB
C
111 lines
2.5 KiB
C
/* SPDX-License-Identifier: GPL-3.0-or-later */
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/*
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* Copyright (C) 2018 - David Oberhollenzer
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include "libcfg.h"
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#include <string.h>
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#include <stdio.h>
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#include <ctype.h>
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static const cfg_param_t *find_param(rdline_t *rd, const char *name,
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const cfg_param_t *params, size_t count)
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{
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size_t i;
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for (i = 0; i < count; ++i) {
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if (!strcmp(params[i].key, name))
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return params + i;
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}
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fprintf(stderr, "%s: %zu: unknown keyword '%s'\n",
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rd->filename, rd->lineno, name);
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return NULL;
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}
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static int splitkv(rdline_t *rd, char **k, char **v)
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{
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char *key = rd->line, *value = rd->line;
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while (*value != ' ' && *value != '\0') {
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if (!isalpha(*value)) {
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fprintf(stderr,
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"%s: %zu: unexpected '%c' in keyword\n",
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rd->filename, rd->lineno, *value);
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return -1;
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}
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++value;
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}
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if (*value != ' ') {
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fprintf(stderr, "%s: %zu: expected argument after '%s'\n",
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rd->filename, rd->lineno, key);
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return -1;
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}
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*(value++) = '\0';
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*k = key;
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*v = value;
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return 0;
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}
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int rdcfg(void *cfgobj, rdline_t *rd, const cfg_param_t *params, size_t count,
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int flags)
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{
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const cfg_param_t *p;
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char *key, *value;
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int ret;
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while ((ret = rdline(rd)) == 0) {
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if (splitkv(rd, &key, &value))
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return -1;
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p = find_param(rd, key, params, count);
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if (p == NULL)
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return -1;
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if (p->allow_block && *value == '{') {
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for (++value; *value == ' '; ++value)
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;
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if (*value != '\0') {
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ret = p->handle(cfgobj, value, rd, flags);
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if (ret)
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return -1;
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}
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while ((ret = rdline(rd)) == 0) {
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if (strcmp(rd->line, "}") == 0)
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break;
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if (p->handle(cfgobj, rd->line, rd, flags))
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return -1;
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}
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if (ret < 0)
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return -1;
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if (ret > 0)
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goto fail_bra;
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} else if (p->handle(cfgobj, value, rd, flags)) {
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return -1;
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}
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}
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return ret < 0 ? -1 : 0;
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fail_bra:
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fprintf(stderr, "%s: missing '}' before end-of-file\n", rd->filename);
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return -1;
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}
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