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mpv/cfgparser.c

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/*
* command line and config file parser
* by Szabolcs Berecz <szabi@inf.elte.hu>
* (C) 2001
*
* subconfig support by alex
*/
//#define DEBUG
#include <stdlib.h>
#include <stdio.h>
#include <ctype.h>
#include <unistd.h>
#include <fcntl.h>
#include <string.h>
#include <errno.h>
#include "config.h"
#include "mp_msg.h"
#define COMMAND_LINE 0
#define CONFIG_FILE 1
#define CONFIG_GLOBAL (1<<0)
#define CONFIG_RUNNING (1<<1)
#define SET_GLOBAL(c) (c->flags |= CONFIG_GLOBAL)
#define UNSET_GLOBAL(c) (c->flags &= (!CONFIG_GLOBAL))
#define IS_GLOBAL(c) (c->flags & CONFIG_GLOBAL)
#define SET_RUNNING(c) (c->flags |= CONFIG_RUNNING)
#define IS_RUNNING(c) (c->flags & CONFIG_RUNNING)
#define MAX_RECURSION_DEPTH 8
#ifdef MP_DEBUG
#include <assert.h>
#endif
#include "cfgparser.h"
static void
m_config_save_option(m_config_t* config, config_t* conf,char* opt, char *param) {
config_save_t* save;
int sl=0;
#ifdef MP_DEBUG
assert(config != NULL);
assert(config->cs_level >= 0);
assert(conf != NULL);
assert(opt != NULL);
assert( ! (conf->flags & CONF_NOSAVE));
#endif
switch(conf->type) {
case CONF_TYPE_PRINT :
case CONF_TYPE_SUBCONFIG :
return;
default :
;
}
mp_msg(MSGT_CFGPARSER, MSGL_DBG2,"Saving option %s\n",opt);
save = config->config_stack[config->cs_level];
if(save) {
for(sl = 0; save[sl].opt != NULL; sl++){
// Check to not save the same arg two times
if(save[sl].opt == conf && (save[sl].opt_name == NULL || strcasecmp(save[sl].opt_name,opt) == 0))
break;
}
if(save[sl].opt)
return;
}
save = (config_save_t*)realloc(save,(sl+2)*sizeof(config_save_t));
if(save == NULL) {
mp_msg(MSGT_CFGPARSER, MSGL_ERR, "Can't allocate %d bytes of memory : %s\n",(sl+2)*sizeof(config_save_t),strerror(errno));
return;
}
memset(&save[sl],0,2*sizeof(config_save_t));
save[sl].opt = conf;
switch(conf->type) {
case CONF_TYPE_FLAG :
case CONF_TYPE_INT :
save[sl].param.as_int = *((int*)conf->p);
break;
case CONF_TYPE_FLOAT :
save[sl].param.as_float = *((float*)conf->p);
break;
case CONF_TYPE_STRING :
save[sl].param.as_pointer = *((char**)conf->p);
break;
case CONF_TYPE_FUNC_FULL :
if(strcasecmp(conf->name,opt) != 0) save->opt_name = strdup(opt);
case CONF_TYPE_FUNC_PARAM :
if(param)
save->param.as_pointer = strdup(param);
case CONF_TYPE_FUNC :
break;
default :
printf("Should never append in m_config_save_option : conf->type=%d\n",conf->type);
}
config->config_stack[config->cs_level] = save;
}
static int
m_config_revert_option(m_config_t* config, config_save_t* save) {
char* arg = NULL;
config_save_t* iter=NULL;
int i=-1;
#ifdef MP_DEBUG
assert(config != NULL);
assert(config->cs_level >= 0);
assert(save != NULL);
#endif
arg = save->opt_name ? save->opt_name : save->opt->name;
mp_msg(MSGT_CFGPARSER, MSGL_DBG2,"Reverting option %s\n",arg);
if(save->opt->default_func)
save->opt->default_func(save->opt,arg);
switch(save->opt->type) {
case CONF_TYPE_FLAG :
case CONF_TYPE_INT :
*((int*)save->opt->p) = save->param.as_int;
break;
case CONF_TYPE_FLOAT :
*((float*)save->opt->p) = save->param.as_float;
break;
case CONF_TYPE_STRING :
*((char**)save->opt->p) = save->param.as_pointer;
break;
case CONF_TYPE_FUNC_PARAM :
case CONF_TYPE_FUNC_FULL :
case CONF_TYPE_FUNC :
if(config->cs_level > 0) {
for(i = config->cs_level - 1 ; i >= 0 ; i--){
if(config->config_stack[i] == NULL) continue;
for(iter = config->config_stack[i]; iter != NULL && iter->opt != NULL ; iter++) {
if(iter->opt == save->opt &&
((save->param.as_pointer == NULL || iter->param.as_pointer == NULL) || strcasecmp(save->param.as_pointer,iter->param.as_pointer) == 0) &&
(save->opt_name == NULL ||
(iter->opt_name && strcasecmp(save->opt_name,iter->opt_name)))) break;
}
}
}
free(save->param.as_pointer);
if(save->opt_name) free(save->opt_name);
save->opt_name = save->param.as_pointer = NULL;
if(i < 0) break;
arg = iter->opt_name ? iter->opt_name : iter->opt->name;
switch(iter->opt->type) {
case CONF_TYPE_FUNC :
if ((((cfg_func_t) iter->opt->p)(iter->opt)) < 0)
return -1;
break;
case CONF_TYPE_FUNC_PARAM :
if (iter->param.as_pointer == NULL) {
printf("We lost param for option %s?\n",iter->opt->name);
return -1;
}
if ((((cfg_func_param_t) iter->opt->p)(iter->opt, (char*)iter->param.as_pointer)) < 0)
return -1;
break;
case CONF_TYPE_FUNC_FULL :
if (iter->param.as_pointer != NULL && ((char*)iter->param.as_pointer)[0]=='-'){
if( ((cfg_func_arg_param_t) iter->opt->p)(iter->opt, arg, NULL) < 0)
return -1;
}else {
if (((cfg_func_arg_param_t) save->opt->p)(iter->opt, arg, (char*)iter->param.as_pointer) < 0)
return -1;
}
break;
}
break;
default :
printf("Why do we reverse this : name=%s type=%d ?\n",save->opt->name,save->opt->type);
}
return 1;
}
void
m_config_push(m_config_t* config) {
#ifdef MP_DEBUG
assert(config != NULL);
assert(config->cs_level >= 0);
#endif
config->cs_level++;
config->config_stack = (config_save_t**)realloc(config->config_stack ,sizeof(config_save_t*)*(config->cs_level+1));
if(config->config_stack == NULL) {
mp_msg(MSGT_CFGPARSER, MSGL_ERR, "Can't allocate %d bytes of memory : %s\n",sizeof(config_save_t*)*(config->cs_level+1),strerror(errno));
config->cs_level = -1;
return;
}
config->config_stack[config->cs_level] = NULL;
mp_msg(MSGT_CFGPARSER, MSGL_DBG2,"Config pushed level=%d\n",config->cs_level);
}
int
m_config_pop(m_config_t* config) {
int i,ret= 1;
config_save_t* cs;
#ifdef MP_DEBUG
assert(config != NULL);
//assert(config->cs_level > 0);
#endif
if(config->config_stack[config->cs_level] != NULL) {
cs = config->config_stack[config->cs_level];
for(i=0; cs[i].opt != NULL ; i++ ) {
if (m_config_revert_option(config,&cs[i]) < 0)
ret = -1;
}
free(config->config_stack[config->cs_level]);
}
config->config_stack = (config_save_t**)realloc(config->config_stack ,sizeof(config_save_t*)*config->cs_level);
config->cs_level--;
if(config->cs_level > 0 && config->config_stack == NULL) {
mp_msg(MSGT_CFGPARSER, MSGL_ERR, "Can't allocate %d bytes of memory : %s\n",sizeof(config_save_t*)*config->cs_level,strerror(errno));
config->cs_level = -1;
return -1;
}
mp_msg(MSGT_CFGPARSER, MSGL_DBG2,"Config poped level=%d\n",config->cs_level);
return ret;
}
m_config_t*
m_config_new(play_tree_t* pt) {
m_config_t* config;
#ifdef MP_DEBUG
assert(pt != NULL);
#endif
config = (m_config_t*)calloc(1,sizeof(m_config_t));
if(config == NULL) {
mp_msg(MSGT_CFGPARSER, MSGL_ERR, "Can't allocate %d bytes of memory : %s\n",sizeof(m_config_t),strerror(errno));
return NULL;
}
config->config_stack = (config_save_t**)calloc(1,sizeof(config_save_t*));
if(config->config_stack == NULL) {
mp_msg(MSGT_CFGPARSER, MSGL_ERR, "Can't allocate %d bytes of memory : %s\n",sizeof(config_save_t*),strerror(errno));
free(config);
return NULL;
}
SET_GLOBAL(config); // We always start with global options
config->pt = pt;
return config;
}
void
m_config_free(m_config_t* config) {
#ifdef MP_DEBUG
assert(config != NULL);
#endif
free(config->opt_list);
free(config->config_stack);
free(config);
}
static int init_conf(m_config_t *config, int mode)
{
#ifdef MP_DEBUG
assert(config != NULL);
assert(config->pt != NULL);
assert(config->last_entry == NULL || config->last_entry->parent == config->pt);
if (mode != COMMAND_LINE && mode != CONFIG_FILE) {
mp_msg(MSGT_CFGPARSER, MSGL_ERR, "init_conf: wrong mode!\n");
return -1;
}
#endif
config->parser_mode = mode;
return 1;
}
static int config_is_entry_option(m_config_t *config, char *opt, char *param) {
play_tree_t* entry = NULL;
#ifdef MP_DEBUG
assert(config->pt != NULL);
#endif
if(strcasecmp(opt,"playlist") == 0) { // We handle playlist here
if(!param)
return ERR_MISSING_PARAM;
entry = parse_playlist_file(param);
}
if(! IS_RUNNING(config)) {
if(strcasecmp(opt,"vcd") == 0) {
char* s;
if(!param)
return ERR_MISSING_PARAM;
s = (char*)malloc((strlen(param) + 6 + 1)*sizeof(char));
sprintf(s,"vcd://%s",param);
entry = play_tree_new();
play_tree_add_file(entry,s);
free(s);
} else if(strcasecmp(opt,"dvd") == 0) {
char* s;
if(!param)
return ERR_MISSING_PARAM;
s = (char*)malloc((strlen(param) + 6 + 1)*sizeof(char));
sprintf(s,"dvd://%s",param);
entry = play_tree_new();
play_tree_add_file(entry,s);
free(s);
} else if(strcasecmp(opt,"tv") == 0) {
char *s,*pr,*prs;
char *ps,*pe,*channel=NULL;
char *as;
int on=0;
if(!param)
return ERR_MISSING_PARAM;
ps = param;
pe = strchr(param,':');
pr = prs = (char*)malloc((strlen(param)+1)*sizeof(char));
pr[0] = '\0';
while(ps) {
if(!pe)
pe = ps + strlen(ps);
as = strchr(ps,'=');
if(as && as[1] != '\0' && pe-as > 0)
as++;
else
as = NULL;
if( !as && pe-ps == 2 && strncasecmp("on",ps,2) == 0 )
on = 1;
else if(as && as-ps == 8 && strncasecmp("channel",ps,6) == 0 && pe-as > 0) {
channel = (char*)realloc(channel,(pe-as+1)*sizeof(char));
strncpy(channel,as,pe-as);
channel[pe-as] = '\0';
} else if(pe-ps > 0) {
if(prs != pr) {
prs[0] = ':';
prs++;
}
strncpy(prs,ps,pe-ps);
prs += pe-ps;
prs[0] = '\0';
}
if(pe[0] != '\0') {
ps = pe+1;
pe = strchr(ps,':');
} else
ps = NULL;
}
if(on) {
int l=5;
if(channel)
l += strlen(channel);
s = (char*) malloc((l+1)*sizeof(char));
if(channel)
sprintf(s,"tv://%s",channel);
else
sprintf(s,"tv://");
entry = play_tree_new();
play_tree_add_file(entry,s);
if(strlen(pr) > 0)
play_tree_set_param(entry,"tv",pr);
free(s);
}
free(pr);
if(channel)
free(channel);
}
}
if(entry) {
if(config->last_entry)
play_tree_append_entry(config->last_entry,entry);
else
play_tree_set_child(config->pt,entry);
config->last_entry = entry;
if(config->parser_mode == COMMAND_LINE)
UNSET_GLOBAL(config);
return 1;
} else
return 0;
}
static int config_read_option(m_config_t *config,config_t** conf_list, char *opt, char *param)
{
int i=0,nconf = 0;
long tmp_int;
double tmp_float;
int ret = -1;
char *endptr;
config_t* conf=NULL;
#ifdef MP_DEBUG
assert(config != NULL);
assert(conf_list != NULL);
assert(opt != NULL);
#endif
mp_msg(MSGT_CFGPARSER, MSGL_DBG3, "read_option: conf=%p opt='%s' param='%s'\n",
conf, opt, param);
for(nconf = 0 ; conf_list[nconf] != NULL; nconf++) {
conf = conf_list[nconf];
for (i = 0; conf[i].name != NULL; i++) {
int namelength;
/* allow 'aa*' in config.name */
namelength=strlen(conf[i].name);
if ( (conf[i].name[namelength-1]=='*') &&
!memcmp(opt, conf[i].name, namelength-1))
goto option_found;
if (!strcasecmp(opt, conf[i].name))
goto option_found;
}
}
if (config->parser_mode == CONFIG_FILE)
mp_msg(MSGT_CFGPARSER, MSGL_ERR, "invalid option: %s\n",opt);
ret = ERR_NOT_AN_OPTION;
goto out;
option_found :
mp_msg(MSGT_CFGPARSER, MSGL_DBG3, "read_option: name='%s' p=%p type=%d\n",
conf[i].name, conf[i].p, conf[i].type);
if (conf[i].flags & CONF_NOCFG && config->parser_mode == CONFIG_FILE) {
mp_msg(MSGT_CFGPARSER, MSGL_ERR, "this option can only be used on command line:\n", opt);
ret = ERR_NOT_AN_OPTION;
goto out;
}
if (conf[i].flags & CONF_NOCMD && config->parser_mode == COMMAND_LINE) {
mp_msg(MSGT_CFGPARSER, MSGL_ERR, "this option can only be used in config file:\n", opt);
ret = ERR_NOT_AN_OPTION;
goto out;
}
ret = config_is_entry_option(config,opt,param);
if(ret != 0)
return ret;
else
ret = -1;
if(! IS_RUNNING(config) && ! IS_GLOBAL(config) &&
! (conf[i].flags & CONF_GLOBAL) && conf[i].type != CONF_TYPE_SUBCONFIG )
m_config_push(config);
if( !(conf[i].flags & CONF_NOSAVE) && ! (conf[i].flags & CONF_GLOBAL) )
m_config_save_option(config,&conf[i],opt,param);
switch (conf[i].type) {
case CONF_TYPE_FLAG:
/* flags need a parameter in config file */
if (config->parser_mode == CONFIG_FILE) {
if (!strcasecmp(param, "yes") || /* any other language? */
!strcasecmp(param, "ja") ||
!strcasecmp(param, "si") ||
!strcasecmp(param, "igen") ||
!strcasecmp(param, "y") ||
!strcasecmp(param, "j") ||
!strcasecmp(param, "i") ||
!strcmp(param, "1"))
*((int *) conf[i].p) = conf[i].max;
else if (!strcasecmp(param, "no") ||
!strcasecmp(param, "nein") ||
!strcasecmp(param, "nicht") ||
!strcasecmp(param, "nem") ||
!strcasecmp(param, "n") ||
!strcmp(param, "0"))
*((int *) conf[i].p) = conf[i].min;
else {
mp_msg(MSGT_CFGPARSER, MSGL_ERR, "invalid parameter for flag: %s\n", param);
ret = ERR_OUT_OF_RANGE;
goto out;
}
ret = 1;
} else { /* parser_mode == COMMAND_LINE */
*((int *) conf[i].p) = conf[i].max;
ret = 0;
}
break;
case CONF_TYPE_INT:
if (param == NULL)
goto err_missing_param;
tmp_int = strtol(param, &endptr, 0);
if (*endptr) {
mp_msg(MSGT_CFGPARSER, MSGL_ERR, "parameter must be an integer: %s\n", param);
ret = ERR_OUT_OF_RANGE;
goto out;
}
if (conf[i].flags & CONF_MIN)
if (tmp_int < conf[i].min) {
mp_msg(MSGT_CFGPARSER, MSGL_ERR, "parameter must be >= %d: %s\n", (int) conf[i].min, param);
ret = ERR_OUT_OF_RANGE;
goto out;
}
if (conf[i].flags & CONF_MAX)
if (tmp_int > conf[i].max) {
mp_msg(MSGT_CFGPARSER, MSGL_ERR, "parameter must be <= %d: %s\n", (int) conf[i].max, param);
ret = ERR_OUT_OF_RANGE;
goto out;
}
*((int *) conf[i].p) = tmp_int;
ret = 1;
break;
case CONF_TYPE_FLOAT:
if (param == NULL)
goto err_missing_param;
tmp_float = strtod(param, &endptr);
if ((*endptr == ':') || (*endptr == '/'))
tmp_float /= strtod(endptr+1, &endptr);
if (*endptr) {
mp_msg(MSGT_CFGPARSER, MSGL_ERR, "parameter must be a floating point number"
" or a ratio (numerator[:/]denominator): %s\n", param);
ret = ERR_MISSING_PARAM;
goto out;
}
if (conf[i].flags & CONF_MIN)
if (tmp_float < conf[i].min) {
mp_msg(MSGT_CFGPARSER, MSGL_ERR, "parameter must be >= %f: %s\n", conf[i].min, param);
ret = ERR_OUT_OF_RANGE;
goto out;
}
if (conf[i].flags & CONF_MAX)
if (tmp_float > conf[i].max) {
mp_msg(MSGT_CFGPARSER, MSGL_ERR, "parameter must be <= %f: %s\n", conf[i].max, param);
ret = ERR_OUT_OF_RANGE;
goto out;
}
*((float *) conf[i].p) = tmp_float;
ret = 1;
break;
case CONF_TYPE_STRING:
if (param == NULL)
goto err_missing_param;
if (conf[i].flags & CONF_MIN)
if (strlen(param) < conf[i].min) {
mp_msg(MSGT_CFGPARSER, MSGL_ERR, "parameter must be >= %d chars: %s\n",
(int) conf[i].min, param);
ret = ERR_OUT_OF_RANGE;
goto out;
}
if (conf[i].flags & CONF_MAX)
if (strlen(param) > conf[i].max) {
mp_msg(MSGT_CFGPARSER, MSGL_ERR, "parameter must be <= %d chars: %s\n",
(int) conf[i].max, param);
ret = ERR_OUT_OF_RANGE;
goto out;
}
*((char **) conf[i].p) = strdup(param);
ret = 1;
break;
case CONF_TYPE_FUNC_PARAM:
if (param == NULL)
goto err_missing_param;
if ((((cfg_func_param_t) conf[i].p)(conf + i, param)) < 0) {
ret = ERR_FUNC_ERR;
goto out;
}
ret = 1;
break;
case CONF_TYPE_FUNC_FULL:
if (param!=NULL && param[0]=='-'){
ret=((cfg_func_arg_param_t) conf[i].p)(conf + i, opt, NULL);
if (ret>=0) ret=0;
/* if we return >=0: param is processed again (if there is any) */
}else{
ret=((cfg_func_arg_param_t) conf[i].p)(conf + i, opt, param);
/* if we return 0: need no param, precess it again */
/* if we return 1: accepted param */
}
break;
case CONF_TYPE_FUNC:
if ((((cfg_func_t) conf[i].p)(conf + i)) < 0) {
ret = ERR_FUNC_ERR;
goto out;
}
ret = 0;
break;
case CONF_TYPE_SUBCONFIG:
{
char *subparam;
char *subopt;
int subconf_optnr;
config_t *subconf;
config_t *sublist[] = { NULL , NULL };
char *token;
char *p;
if (param == NULL)
goto err_missing_param;
subparam = malloc(strlen(param)+1);
subopt = malloc(strlen(param)+1);
p = strdup(param); // In case that param is a static string (cf man strtok)
subconf = conf[i].p;
sublist[0] = subconf;
for (subconf_optnr = 0; subconf[subconf_optnr].name != NULL; subconf_optnr++)
/* NOTHING */;
config->sub_conf = opt;
token = strtok(p, (char *)&(":"));
while(token)
{
int sscanf_ret;
/* clear out */
subopt[0] = subparam[0] = 0;
sscanf_ret = sscanf(token, "%[^=]=%s", subopt, subparam);
mp_msg(MSGT_CFGPARSER, MSGL_DBG3, "token: '%s', i=%d, subopt='%s', subparam='%s' (ret: %d)\n", token, i, subopt, subparam, sscanf_ret);
switch(sscanf_ret)
{
case 1:
subparam[0] = 0;
case 2:
if ((ret = config_read_option(config,sublist, subopt, subparam)) < 0)
{
mp_msg(MSGT_CFGPARSER, MSGL_ERR, "Subconfig parsing returned error: %d in token: %s\n",
ret, token);
goto out;
}
break;
default:
mp_msg(MSGT_CFGPARSER, MSGL_ERR, "Invalid subconfig argument! ('%s')\n", token);
ret = ERR_NOT_AN_OPTION;
goto out;
}
token = strtok(NULL, (char *)&(":"));
}
config->sub_conf = NULL;
free(subparam);
free(subopt);
free(p);
ret = 1;
break;
}
case CONF_TYPE_PRINT:
printf("%s", (char *) conf[i].p);
exit(1);
default:
mp_msg(MSGT_CFGPARSER, MSGL_ERR, "Unknown config type specified in conf-mplayer.h!\n");
break;
}
out:
if(ret >= 0 && ! IS_RUNNING(config) && ! IS_GLOBAL(config) && ! (conf[i].flags & CONF_GLOBAL) && conf[i].type != CONF_TYPE_SUBCONFIG ) {
play_tree_t* dest = config->last_entry ? config->last_entry : config->last_parent;
char* o;
#ifdef MP_DEBUG
assert(dest != NULL);
#endif
if(config->sub_conf) {
o = (char*)malloc((strlen(config->sub_conf) + 1 + strlen(opt) + 1)*sizeof(char));
sprintf(o,"%s:%s",config->sub_conf,opt);
} else
o =strdup(opt);
if(ret == 0)
play_tree_set_param(dest,o,NULL);
else if(ret > 0)
play_tree_set_param(dest,o,param);
free(o);
m_config_pop(config);
}
return ret;
err_missing_param:
mp_msg(MSGT_CFGPARSER, MSGL_ERR, "missing parameter for option: %s\n", opt);
ret = ERR_MISSING_PARAM;
goto out;
}
int m_config_set_option(m_config_t *config,char *opt, char *param) {
char *e;
#ifdef MP_DEBUG
assert(config != NULL);
assert(config->opt_list != NULL);
assert(opt != NULL);
#endif
mp_msg(MSGT_CFGPARSER, MSGL_DBG2, "Setting option %s=%s\n",opt,param);
e = strchr(opt,':');
if(e && e[1] != '\0') {
int ret;
config_t* opt_list[] = { NULL, NULL };
char* s = (char*)malloc((e-opt+1)*sizeof(char));
strncpy(s,opt,e-opt);
s[e-opt] = '\0';
opt_list[0] = m_config_get_option_ptr(config,s);
if(!opt_list[0]) {
mp_msg(MSGT_CFGPARSER, MSGL_ERR,"m_config_set_option %s=%s : no %s subconfig\n",opt,param,s);
free(s);
return ERR_NOT_AN_OPTION;
}
e++;
s = (char*)realloc(s,strlen(e) + 1);
strcpy(s,e);
ret = config_read_option(config,opt_list,s,param);
free(s);
return ret;
}
return config_read_option(config,config->opt_list,opt,param);
}
int m_config_parse_config_file(m_config_t *config, char *conffile)
{
#define PRINT_LINENUM printf("%s(%d): ", conffile, line_num)
#define MAX_LINE_LEN 1000
#define MAX_OPT_LEN 100
#define MAX_PARAM_LEN 100
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;
#ifdef MP_DEBUG
assert(config != NULL);
// assert(conf_list != NULL);
#endif
if (++config->recursion_depth > 1)
printf("Reading config file: %s", conffile);
if (config->recursion_depth > MAX_RECURSION_DEPTH) {
printf(": too deep 'include'. check your configfiles\n");
ret = -1;
goto out;
}
if (init_conf(config, CONFIG_FILE) == -1) {
ret = -1;
goto out;
}
if ((line = (char *) malloc(MAX_LINE_LEN + 1)) == NULL) {
printf("\ncan't get memory for 'line': %s", strerror(errno));
ret = -1;
goto out;
}
if ((fp = fopen(conffile, "r")) == NULL) {
if (config->recursion_depth > 1)
printf(": %s\n", strerror(errno));
free(line);
ret = 0;
goto out;
}
if (config->recursion_depth > 1)
printf("\n");
while (fgets(line, MAX_LINE_LEN, fp)) {
if (errors >= 16) {
printf("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;
printf("too long option\n");
errors++;
ret = -1;
goto nextline;
}
}
if (opt_pos == 0) {
PRINT_LINENUM;
printf("parse error\n");
ret = -1;
errors++;
continue;
}
opt[opt_pos] = '\0';
#ifdef MP_DEBUG
PRINT_LINENUM;
printf("option: %s\n", opt);
#endif
/* skip whitespaces */
while (isspace(line[line_pos]))
++line_pos;
/* check '=' */
if (line[line_pos++] != '=') {
PRINT_LINENUM;
printf("option without parameter\n");
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;
printf("too long parameter\n");
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;
printf("too long parameter\n");
ret = -1;
errors++;
goto nextline;
}
}
}
param[param_pos] = '\0';
/* did we read a parameter? */
if (param_pos == 0) {
PRINT_LINENUM;
printf("option without parameter\n");
ret = -1;
errors++;
continue;
}
#ifdef MP_DEBUG
PRINT_LINENUM;
printf("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;
printf("extra characters on line: %s\n", line+line_pos);
ret = -1;
}
tmp = m_config_set_option(config, opt, param);
switch (tmp) {
case ERR_NOT_AN_OPTION:
case ERR_MISSING_PARAM:
case ERR_OUT_OF_RANGE:
case ERR_FUNC_ERR:
PRINT_LINENUM;
printf("%s\n", opt);
ret = -1;
errors++;
continue;
/* break */
}
nextline:
;
}
free(line);
fclose(fp);
out:
--config->recursion_depth;
return ret;
}
int m_config_parse_command_line(m_config_t *config, int argc, char **argv, char **envp)
{
int i;
int tmp;
char *opt;
int no_more_opts = 0;
#ifdef MP_DEBUG
assert(config != NULL);
assert(config->pt != NULL);
assert(argv != NULL);
assert(envp != NULL);
assert(argc >= 1);
#endif
if (init_conf(config, COMMAND_LINE) == -1)
return -1;
if(config->last_parent == NULL)
config->last_parent = config->pt;
/* in order to work recursion detection properly in parse_config_file */
++config->recursion_depth;
for (i = 1; i < argc; i++) {
//next:
opt = argv[i];
/* check for -- (no more options id.) except --help! */
if ((*opt == '-') && (*(opt+1) == '-') && (*(opt+2) != 'h'))
{
no_more_opts = 1;
if (i+1 >= argc)
{
mp_msg(MSGT_CFGPARSER, MSGL_ERR, "You added '--' but no filenames presented!\n");
goto err_out;
}
continue;
}
if((opt[0] == '{') && (opt[1] == '\0'))
{
play_tree_t* entry = play_tree_new();
UNSET_GLOBAL(config);
if(config->last_entry == NULL) {
play_tree_set_child(config->last_parent,entry);
} else {
play_tree_append_entry(config->last_entry,entry);
config->last_entry = NULL;
}
config->last_parent = entry;
continue;
}
if((opt[0] == '}') && (opt[1] == '\0'))
{
if( ! config->last_parent || ! config->last_parent->parent) {
mp_msg(MSGT_CFGPARSER, MSGL_ERR, "too much }-\n");
goto err_out;
}
config->last_entry = config->last_parent;
config->last_parent = config->last_entry->parent;
continue;
}
if ((no_more_opts == 0) && (*opt == '-') && (*(opt+1) != 0)) /* option */
{
/* remove trailing '-' */
opt++;
mp_msg(MSGT_CFGPARSER, MSGL_DBG3, "this_opt = option: %s\n", opt);
tmp = m_config_set_option(config, opt, argv[i + 1]);
switch (tmp) {
case ERR_NOT_AN_OPTION:
case ERR_MISSING_PARAM:
case ERR_OUT_OF_RANGE:
case ERR_FUNC_ERR:
mp_msg(MSGT_CFGPARSER, MSGL_ERR, "Error %d while parsing option: '%s'!\n",
tmp, opt);
goto err_out;
default:
i += tmp;
break;
}
}
else /* filename */
{
play_tree_t* entry = play_tree_new();
mp_msg(MSGT_CFGPARSER, MSGL_DBG2,"Adding file %s\n",argv[i]);
play_tree_add_file(entry,argv[i]);
/* opt is not an option -> treat it as a filename */
UNSET_GLOBAL(config); // We start entry specific options
if(config->last_entry == NULL)
play_tree_set_child(config->last_parent,entry);
else
play_tree_append_entry(config->last_entry,entry);
config->last_entry = entry;
}
}
--config->recursion_depth;
if(config->last_parent != config->pt)
mp_msg(MSGT_CFGPARSER, MSGL_ERR,"Missing }- ?\n");
UNSET_GLOBAL(config);
SET_RUNNING(config);
return 1;
#if 0
err_out_mem:
mp_msg(MSGT_CFGPARSER, MSGL_ERR, "can't allocate memory for filenames (%s)\n", strerror(errno));
#endif
err_out:
--config->recursion_depth;
mp_msg(MSGT_CFGPARSER, MSGL_ERR, "command line: %s\n", argv[i]);
return -1;
}
int
m_config_register_options(m_config_t *config,config_t *args) {
int list_len = 0;
config_t** conf_list = config->opt_list;
#ifdef MP_DEBUG
assert(config != NULL);
assert(args != NULL);
#endif
if(conf_list) {
for ( ; conf_list[list_len] != NULL; list_len++)
/* NOTHING */;
}
conf_list = (config_t**)realloc(conf_list,sizeof(struct conf*)*(list_len+2));
if(conf_list == NULL) {
mp_msg(MSGT_CFGPARSER, MSGL_ERR, "Can't allocate %d bytes of memory : %s\n",sizeof(struct conf*)*(list_len+2),strerror(errno));
return 0;
}
conf_list[list_len] = args;
conf_list[list_len+1] = NULL;
config->opt_list = conf_list;
return 1;
}
config_t*
m_config_get_option(m_config_t *config, char* arg) {
int i,j;
char *e;
config_t *conf;
config_t **conf_list;
config_t* cl[] = { NULL, NULL };
#ifdef MP_DEBUG
assert(config != NULL);
assert(arg != NULL);
#endif
e = strchr(arg,':');
if(e) {
char *s;
s = (char*)malloc((e-arg+1)*sizeof(char));
strncpy(s,arg,e-arg);
s[e-arg] = '\0';
cl[0] = m_config_get_option(config,s);
conf_list = cl;
free(s);
} else
conf_list = config->opt_list;
if(conf_list) {
for(j = 0 ; conf_list[j] != NULL ; j++) {
conf = conf_list[j];
for(i=0; conf[i].name != NULL; i++) {
if(strcasecmp(conf[i].name,arg) == 0)
return &conf[i];
}
}
}
return NULL;
}
void*
m_config_get_option_ptr(m_config_t *config, char* arg) {
config_t* conf;
#ifdef MP_DEBUG
assert(config != NULL);
assert(arg != NULL);
#endif
conf = m_config_get_option(config,arg);
if(!conf) return NULL;
return conf->p;
}
int
m_config_get_int (m_config_t *config, char* arg,int* err_ret) {
int *ret;
#ifdef MP_DEBUG
assert(config != NULL);
assert(arg != NULL);
#endif
ret = m_config_get_option_ptr(config,arg);
if(err_ret)
*err_ret = 0;
if(!ret) {
if(err_ret)
*err_ret = 1;
return -1;
} else
return (*ret);
}
float
m_config_get_float (m_config_t *config, char* arg,int* err_ret) {
float *ret;
#ifdef MP_DEBUG
assert(config != NULL);
assert(arg != NULL);
#endif
ret = m_config_get_option_ptr(config,arg);
if(err_ret)
*err_ret = 0;
if(!ret) {
if(err_ret)
*err_ret = 1;
return -1;
} else
return (*ret);
}
#define AS_INT(c) (*((int*)c->p))
int
m_config_set_int(m_config_t *config, char* arg,int val) {
config_t* opt;
#ifdef MP_DEBUG
assert(config != NULL);
assert(arg != NULL);
#endif
opt = m_config_get_option(config,arg);
if(!opt || opt->type != CONF_TYPE_INT)
return ERR_NOT_AN_OPTION;
if(opt->flags & CONF_MIN && val < opt->min)
return ERR_OUT_OF_RANGE;
if(opt->flags & CONF_MAX && val > opt->max)
return ERR_OUT_OF_RANGE;
m_config_save_option(config,opt,arg,NULL);
AS_INT(opt) = val;
return 1;
}
int
m_config_set_float(m_config_t *config, char* arg,float val) {
config_t* opt;
#ifdef MP_DEBUG
assert(config != NULL);
assert(arg != NULL);
#endif
opt = m_config_get_option(config,arg);
if(!opt || opt->type != CONF_TYPE_FLOAT)
return ERR_NOT_AN_OPTION;
if(opt->flags & CONF_MIN && val < opt->min)
return ERR_OUT_OF_RANGE;
if(opt->flags & CONF_MAX && val > opt->max)
return ERR_OUT_OF_RANGE;
m_config_save_option(config,opt,arg,NULL);
*((float*)opt->p) = val;
return 1;
}
int
m_config_switch_flag(m_config_t *config, char* opt) {
config_t *conf;
#ifdef MP_DEBUG
assert(config != NULL);
assert(opt != NULL);
#endif
conf = m_config_get_option(config,opt);
if(!conf || conf->type != CONF_TYPE_FLAG) return 0;
if( AS_INT(conf) == conf->min) AS_INT(conf) = conf->max;
else if(AS_INT(conf) == conf->max) AS_INT(conf) = conf->min;
else return 0;
return 1;
}
int
m_config_set_flag(m_config_t *config, char* opt, int state) {
config_t *conf;
#ifdef MP_DEBUG
assert(config != NULL);
assert(opt != NULL);
#endif
conf = m_config_get_option(config,opt);
if(!conf || conf->type != CONF_TYPE_FLAG) return 0;
if(state) AS_INT(conf) = conf->max;
else AS_INT(conf) = conf->min;
return 1;
}
int
m_config_get_flag(m_config_t *config, char* opt) {
config_t *conf;
#ifdef MP_DEBUG
assert(config != NULL);
assert(opt != NULL);
#endif
conf = m_config_get_option(config,opt);
if(!conf || conf->type != CONF_TYPE_FLAG) return -1;
if(AS_INT(conf) == conf->max)
return 1;
else if(AS_INT(conf) == conf->min)
return 0;
else
return -1;
}
int m_config_is_option_set(m_config_t *config, char* arg) {
config_t* opt;
config_save_t* save;
int l,i;
#ifdef MP_DEBUG
assert(config != NULL);
assert(arg != NULL);
#endif
opt = m_config_get_option(config,arg);
if(!opt)
return -1;
for(l = config->cs_level ; l >= 0 ; l--) {
save = config->config_stack[l];
if(!save)
continue;
for(i = 0 ; save[i].opt != NULL ; i++) {
if(save[i].opt == opt)
return 1;
}
}
return 0;
}
#undef AS_INT
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