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/// \defgroup ConfigParsers Config parsers
///
/// The \ref ConfigParsers make use of the \ref Config to setup the config variables,
/// the command line parsers also build the playlist.
///@{
/// \file
#include "config.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <ctype.h>
#ifdef MP_DEBUG
#include <assert.h>
#endif
#include "mp_msg.h"
#include "m_option.h"
#include "m_config.h"
/// Maximal include depth.
#define MAX_RECURSION_DEPTH 8
/// Current include depth.
static int recursion_depth = 0;
/// Setup the \ref Config from a config file.
/** \param config The config object.
* \param conffile Path to the config file.
* \return 1 on sucess, -1 on error.
*/
int m_config_parse_config_file(m_config_t* config, char *conffile)
{
#define PRINT_LINENUM mp_msg(MSGT_CFGPARSER,MSGL_V,"%s(%d): ", conffile, line_num)
#define MAX_LINE_LEN 10000
#define MAX_OPT_LEN 1000
#define MAX_PARAM_LEN 1500
FILE *fp;
char *line;
char opt[MAX_OPT_LEN + 1];
char param[MAX_PARAM_LEN + 1];
char c; /* for the "" and '' check */
int tmp;
int line_num = 0;
int line_pos; /* line pos */
int opt_pos; /* opt pos */
int param_pos; /* param pos */
int ret = 1;
int errors = 0;
int prev_mode = config->mode;
m_profile_t* profile = NULL;
#ifdef MP_DEBUG
assert(config != NULL);
// assert(conf_list != NULL);
#endif
mp_msg(MSGT_CFGPARSER,MSGL_V,"Reading config file %s", conffile);
if (recursion_depth > MAX_RECURSION_DEPTH) {
mp_msg(MSGT_CFGPARSER,MSGL_ERR,": too deep 'include'. check your configfiles\n");
ret = -1;
goto out;
} else
config->mode = M_CONFIG_FILE;
if ((line = malloc(MAX_LINE_LEN + 1)) == NULL) {
mp_msg(MSGT_CFGPARSER,MSGL_FATAL,"\ncan't get memory for 'line': %s", strerror(errno));
ret = -1;
goto out;
} else
mp_msg(MSGT_CFGPARSER,MSGL_V,"\n");
if ((fp = fopen(conffile, "r")) == NULL) {
mp_msg(MSGT_CFGPARSER,MSGL_V,": %s\n", strerror(errno));
free(line);
ret = 0;
goto out;
}
while (fgets(line, MAX_LINE_LEN, fp)) {
if (errors >= 16) {
mp_msg(MSGT_CFGPARSER,MSGL_FATAL,"too many errors\n");
goto out;
}
line_num++;
line_pos = 0;
/* skip whitespaces */
while (isspace(line[line_pos]))
++line_pos;
/* EOL / comment */
if (line[line_pos] == '\0' || line[line_pos] == '#')
continue;
/* read option. */
for (opt_pos = 0; isprint(line[line_pos]) &&
line[line_pos] != ' ' &&
line[line_pos] != '#' &&
line[line_pos] != '='; /* NOTHING */) {
opt[opt_pos++] = line[line_pos++];
if (opt_pos >= MAX_OPT_LEN) {
PRINT_LINENUM;
mp_msg(MSGT_CFGPARSER,MSGL_ERR,"too long option at line %d\n",line_num);
errors++;
ret = -1;
goto nextline;
}
}
if (opt_pos == 0) {
PRINT_LINENUM;
mp_msg(MSGT_CFGPARSER,MSGL_ERR,"parse error at line %d\n",line_num);
ret = -1;
errors++;
continue;
}
opt[opt_pos] = '\0';
/* Profile declaration */
if(opt_pos > 2 && opt[0] == '[' && opt[opt_pos-1] == ']') {
opt[opt_pos-1] = '\0';
if(strcmp(opt+1,"default"))
profile = m_config_add_profile(config,opt+1);
else
profile = NULL;
continue;
}
#ifdef MP_DEBUG
PRINT_LINENUM;
mp_msg(MSGT_CFGPARSER,MSGL_V,"option: %s\n", opt);
#endif
/* skip whitespaces */
while (isspace(line[line_pos]))
++line_pos;
/* check '=' */
if (line[line_pos++] != '=') {
PRINT_LINENUM;
mp_msg(MSGT_CFGPARSER,MSGL_ERR,"Option %s needs a parameter at line %d\n",opt,line_num);
ret = -1;
errors++;
continue;
}
/* whitespaces... */
while (isspace(line[line_pos]))
++line_pos;
/* read the parameter */
if (line[line_pos] == '"' || line[line_pos] == '\'') {
c = line[line_pos];
++line_pos;
for (param_pos = 0; line[line_pos] != c; /* NOTHING */) {
param[param_pos++] = line[line_pos++];
if (param_pos >= MAX_PARAM_LEN) {
PRINT_LINENUM;
mp_msg(MSGT_CFGPARSER,MSGL_ERR,"Option %s has a too long parameter at line %d\n",opt,line_num);
ret = -1;
errors++;
goto nextline;
}
}
line_pos++; /* skip the closing " or ' */
} else {
for (param_pos = 0; isprint(line[line_pos]) && !isspace(line[line_pos])
&& line[line_pos] != '#'; /* NOTHING */) {
param[param_pos++] = line[line_pos++];
if (param_pos >= MAX_PARAM_LEN) {
PRINT_LINENUM;
mp_msg(MSGT_CFGPARSER,MSGL_ERR,"too long parameter\n");
ret = -1;
errors++;
goto nextline;
}
}
}
param[param_pos] = '\0';
/* did we read a parameter? */
if (param_pos == 0) {
PRINT_LINENUM;
mp_msg(MSGT_CFGPARSER,MSGL_ERR,"Option %s needs a parameter at line %d\n",opt,line_num);
ret = -1;
errors++;
continue;
}
#ifdef MP_DEBUG
PRINT_LINENUM;
mp_msg(MSGT_CFGPARSER,MSGL_V,"parameter: %s\n", param);
#endif
/* now, check if we have some more chars on the line */
/* whitespace... */
while (isspace(line[line_pos]))
++line_pos;
/* EOL / comment */
if (line[line_pos] != '\0' && line[line_pos] != '#') {
PRINT_LINENUM;
mp_msg(MSGT_CFGPARSER,MSGL_WARN,"extra characters on line %d: %s\n",line_num, line+line_pos);
ret = -1;
}
if(profile) {
if(!strcmp(opt,"profile-desc"))
m_profile_set_desc(profile,param), tmp = 1;
else
tmp = m_config_set_profile_option(config,profile,
opt,param);
} else
tmp = m_config_set_option(config, opt, param);
if (tmp < 0) {
PRINT_LINENUM;
if(tmp == M_OPT_UNKNOWN) {
mp_msg(MSGT_CFGPARSER,MSGL_WARN,"Warning unknown option %s at line %d\n", opt,line_num);
continue;
}
mp_msg(MSGT_CFGPARSER,MSGL_ERR,"Error parsing option %s=%s at line %d\n",opt,param,line_num);
ret = -1;
errors++;
continue;
/* break */
}
nextline:
;
}
free(line);
fclose(fp);
out:
config->mode = prev_mode;
--recursion_depth;
return ret;
}
///@}
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