mirror of
https://github.com/mpv-player/mpv
synced 2025-01-05 03:06:28 +01:00
e2a9215e9b
Always print config file location and line number on config file parse errors. Print an error message with fatal log level if parsing failed completely. Setting an option to an invalid value in config files made loading these files fatal. There isn't really any need to make this a fatal error. Change it so that these cases don't abort loading. This is also more consistent with missing options. These weren't fatal either.
252 lines
7.5 KiB
C
252 lines
7.5 KiB
C
/*
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* This file is part of MPlayer.
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*
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* MPlayer 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 2 of the License, or
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* (at your option) any later version.
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*
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* MPlayer 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 along
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* with MPlayer; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "config.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#include <ctype.h>
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#include <assert.h>
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#include "osdep/io.h"
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#include "parser-cfg.h"
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#include "mp_msg.h"
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#include "m_option.h"
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#include "m_config.h"
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/// Maximal include depth.
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#define MAX_RECURSION_DEPTH 8
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/// Current include depth.
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static int recursion_depth = 0;
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/// Setup the \ref Config from a config file.
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/** \param config The config object.
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* \param conffile Path to the config file.
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* \return 1 on sucess, -1 on error, 0 if file not accessible.
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*/
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int m_config_parse_config_file(m_config_t *config, const char *conffile)
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{
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#define PRINT_LINENUM mp_msg(MSGT_CFGPARSER, MSGL_ERR, "%s:%d: ", conffile, line_num)
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#define MAX_LINE_LEN 10000
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#define MAX_OPT_LEN 1000
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#define MAX_PARAM_LEN 1500
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FILE *fp;
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char *line;
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char opt[MAX_OPT_LEN + 1];
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char param[MAX_PARAM_LEN + 1];
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char c; /* for the "" and '' check */
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int tmp;
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int line_num = 0;
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int line_pos; /* line pos */
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int opt_pos; /* opt pos */
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int param_pos; /* param pos */
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int ret = 1;
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int errors = 0;
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int prev_mode = config->mode;
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m_profile_t *profile = NULL;
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mp_msg(MSGT_CFGPARSER, MSGL_V, "Reading config file %s", conffile);
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if (recursion_depth > MAX_RECURSION_DEPTH) {
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mp_msg(MSGT_CFGPARSER, MSGL_ERR,
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": too deep 'include'. check your configfiles\n");
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ret = -1;
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goto out;
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} else
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config->mode = M_CONFIG_FILE;
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if ((line = malloc(MAX_LINE_LEN + 1)) == NULL) {
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mp_msg(MSGT_CFGPARSER, MSGL_FATAL,
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"\ncan't get memory for 'line': %s", strerror(errno));
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ret = -1;
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goto out;
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} else
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mp_msg(MSGT_CFGPARSER, MSGL_V, "\n");
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if ((fp = fopen(conffile, "r")) == NULL) {
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mp_msg(MSGT_CFGPARSER, MSGL_V, ": %s\n", strerror(errno));
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free(line);
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ret = 0;
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goto out;
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}
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while (fgets(line, MAX_LINE_LEN, fp)) {
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if (errors >= 16) {
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mp_msg(MSGT_CFGPARSER, MSGL_FATAL, "too many errors\n");
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goto out;
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}
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line_num++;
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line_pos = 0;
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/* skip whitespaces */
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while (isspace(line[line_pos]))
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++line_pos;
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/* EOL / comment */
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if (line[line_pos] == '\0' || line[line_pos] == '#')
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continue;
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/* read option. */
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for (opt_pos = 0; isprint(line[line_pos]) &&
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line[line_pos] != ' ' &&
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line[line_pos] != '#' &&
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line[line_pos] != '='; /* NOTHING */) {
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opt[opt_pos++] = line[line_pos++];
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if (opt_pos >= MAX_OPT_LEN) {
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PRINT_LINENUM;
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mp_msg(MSGT_CFGPARSER, MSGL_ERR, "too long option\n");
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errors++;
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ret = -1;
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goto nextline;
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}
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}
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if (opt_pos == 0) {
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PRINT_LINENUM;
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mp_msg(MSGT_CFGPARSER, MSGL_ERR, "parse error\n");
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ret = -1;
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errors++;
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continue;
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}
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opt[opt_pos] = '\0';
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/* Profile declaration */
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if (opt_pos > 2 && opt[0] == '[' && opt[opt_pos - 1] == ']') {
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opt[opt_pos - 1] = '\0';
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if (strcmp(opt + 1, "default"))
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profile = m_config_add_profile(config, opt + 1);
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else
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profile = NULL;
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continue;
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}
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/* skip whitespaces */
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while (isspace(line[line_pos]))
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++line_pos;
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/* check '=' */
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if (line[line_pos++] != '=') {
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PRINT_LINENUM;
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mp_msg(MSGT_CFGPARSER, MSGL_ERR,
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"option %s needs a parameter\n", opt);
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ret = -1;
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errors++;
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continue;
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}
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/* whitespaces... */
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while (isspace(line[line_pos]))
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++line_pos;
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/* read the parameter */
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if (line[line_pos] == '"' || line[line_pos] == '\'') {
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c = line[line_pos];
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++line_pos;
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for (param_pos = 0; line[line_pos] != c; /* NOTHING */) {
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param[param_pos++] = line[line_pos++];
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if (param_pos >= MAX_PARAM_LEN) {
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PRINT_LINENUM;
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mp_msg(MSGT_CFGPARSER, MSGL_ERR,
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"option %s has a too long parameter\n", opt);
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ret = -1;
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errors++;
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goto nextline;
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}
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}
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line_pos++; /* skip the closing " or ' */
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} else {
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for (param_pos = 0; isprint(line[line_pos])
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&& !isspace(line[line_pos])
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&& line[line_pos] != '#'; /* NOTHING */) {
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param[param_pos++] = line[line_pos++];
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if (param_pos >= MAX_PARAM_LEN) {
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PRINT_LINENUM;
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mp_msg(MSGT_CFGPARSER, MSGL_ERR, "too long parameter\n");
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ret = -1;
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errors++;
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goto nextline;
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}
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}
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}
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param[param_pos] = '\0';
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/* did we read a parameter? */
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if (param_pos == 0) {
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PRINT_LINENUM;
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mp_msg(MSGT_CFGPARSER, MSGL_ERR,
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"option %s needs a parameter\n", opt);
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ret = -1;
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errors++;
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continue;
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}
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/* now, check if we have some more chars on the line */
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/* whitespace... */
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while (isspace(line[line_pos]))
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++line_pos;
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/* EOL / comment */
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if (line[line_pos] != '\0' && line[line_pos] != '#') {
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PRINT_LINENUM;
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mp_msg(MSGT_CFGPARSER, MSGL_ERR,
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"extra characters: %s\n", line + line_pos);
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ret = -1;
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}
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if (profile) {
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if (!strcmp(opt, "profile-desc"))
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m_profile_set_desc(profile, param), tmp = 1;
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else
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tmp = m_config_set_profile_option(config, profile,
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opt, param);
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} else
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tmp = m_config_set_option0(config, opt, param);
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if (tmp < 0) {
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PRINT_LINENUM;
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if (tmp == M_OPT_UNKNOWN) {
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mp_msg(MSGT_CFGPARSER, MSGL_ERR,
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"unknown option '%s'\n", opt);
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continue;
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}
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mp_msg(MSGT_CFGPARSER, MSGL_ERR,
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"setting option %s='%s' failed\n", opt, param);
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continue;
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/* break */
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}
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nextline:
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;
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}
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free(line);
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fclose(fp);
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out:
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config->mode = prev_mode;
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--recursion_depth;
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if (ret < 0) {
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mp_msg(MSGT_CFGPARSER, MSGL_FATAL, "Error loading config file %s.\n",
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conffile);
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}
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return ret;
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}
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