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oscam-conf.c
379 lines (355 loc) · 10.6 KB
/
oscam-conf.c
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#include "globals.h"
#include "oscam-conf.h"
#include "oscam-files.h"
#include "oscam-garbage.h"
#include "oscam-string.h"
#define CONFVARWIDTH 30
/* Returns the default value if string length is zero, otherwise atoi is called*/
int32_t strToIntVal(char *value, int32_t defaultvalue){
if (strlen(value) == 0) return defaultvalue;
errno = 0; // errno should be set to 0 before calling strtol
int32_t i = strtol(value, NULL, 10);
return (errno == 0) ? i : defaultvalue;
}
/* Returns the default value if string length is zero, otherwise strtoul is called*/
uint32_t strToUIntVal(char *value, uint32_t defaultvalue){
if (strlen(value) == 0) return defaultvalue;
errno = 0; // errno should be set to 0 before calling strtoul
uint32_t i = strtoul(value, NULL, 10);
return (errno == 0) ? i : defaultvalue;
}
/* Replacement of fprintf which adds necessary whitespace to fill up the varname to a fixed width.
If varname is longer than CONFVARWIDTH, no whitespace is added*/
void fprintf_conf(FILE *f, const char *varname, const char *fmtstring, ...){
int32_t varlen = strlen(varname);
int32_t max = (varlen > CONFVARWIDTH) ? varlen : CONFVARWIDTH;
char varnamebuf[max + 3];
char *ptr = varnamebuf + varlen;
va_list argptr;
cs_strncpy(varnamebuf, varname, sizeof(varnamebuf));
while(varlen < CONFVARWIDTH){
ptr[0] = ' ';
++ptr;
++varlen;
}
cs_strncpy(ptr, "= ", sizeof(varnamebuf)-(ptr-varnamebuf));
if (fwrite(varnamebuf, sizeof(char), strlen(varnamebuf), f)){
if(strlen(fmtstring) > 0){
va_start(argptr, fmtstring);
vfprintf(f, fmtstring, argptr);
va_end(argptr);
}
}
}
int config_list_parse(const struct config_list *clist, const char *token, char *value, void *config_data) {
const struct config_list *c;
for (c = clist; c->opt_type != OPT_UNKNOWN; c++) {
if (c->opt_type == OPT_SAVE_FUNC || c->opt_type == OPT_FIXUP_FUNC)
continue;
if (strcasecmp(token, c->config_name) != 0)
continue;
void *var = config_data + c->var_offset;
switch (c->opt_type) {
case OPT_INT8: {
*(int8_t *)var = (int8_t)strToIntVal(value, c->def.d_int8);
return 1;
}
case OPT_UINT8: {
uint32_t tmp = strToUIntVal(value, c->def.d_uint8);
*(uint8_t *)var = (uint8_t)(tmp <= 0xff ? tmp : 0xff);
return 1;
}
case OPT_INT32: {
*(int32_t *)var = strToIntVal(value, c->def.d_int32);
return 1;
}
case OPT_UINT32: {
*(uint32_t *)var = strToUIntVal(value, c->def.d_uint32);
return 1;
}
case OPT_STRING: {
char **scfg = var;
if (c->def.d_char && strlen(value) == 0) // Set default
value = c->def.d_char;
NULLFREE(*scfg);
if (strlen(value))
*scfg = cs_strdup(value);
return 1;
}
case OPT_SSTRING: {
char *scfg = var;
if (c->def.d_char && strlen(value) == 0) // Set default
value = c->def.d_char;
scfg[0] = '\0';
unsigned int len = strlen(value);
if (len) {
strncpy(scfg, value, c->str_size - 1);
if (len > c->str_size) {
fprintf(stderr, "WARNING: Config value for '%s' (%s, len=%u) exceeds max length: %d (%s)\n",
token, value, len, c->str_size - 1, scfg);
}
}
return 1;
}
case OPT_FUNC: {
c->ops.process_fn(token, value, var, NULL);
return 1;
}
case OPT_FIXUP_FUNC:
case OPT_SAVE_FUNC:
return 1;
case OPT_UNKNOWN: {
fprintf(stderr, "Unknown config type (%s = %s).", token, value);
break;
}
}
}
return 0;
}
void config_list_save(FILE *f, const struct config_list *clist, void *config_data, int save_all) {
const struct config_list *c;
for (c = clist; c->opt_type != OPT_UNKNOWN; c++) {
void *var = config_data + c->var_offset;
switch (c->opt_type) {
case OPT_INT8: {
int8_t val = *(int8_t *)var;
if (save_all || val != c->def.d_int8)
fprintf_conf(f, c->config_name, "%d\n", val);
continue;
}
case OPT_UINT8: {
uint8_t val = *(uint8_t *)var;
if (save_all || val != c->def.d_uint8)
fprintf_conf(f, c->config_name, "%u\n", val);
continue;
}
case OPT_INT32: {
int32_t val = *(int32_t *)var;
if (save_all || val != c->def.d_int32)
fprintf_conf(f, c->config_name, "%d\n", val);
continue;
}
case OPT_UINT32: {
uint32_t val = *(uint32_t *)var;
if (save_all || val != c->def.d_uint32)
fprintf_conf(f, c->config_name, "%u\n", val);
continue;
}
case OPT_STRING: {
char **val = var;
if (save_all || !streq(*val, c->def.d_char)) {
fprintf_conf(f, c->config_name, "%s\n", *val ? *val : "");
}
continue;
}
case OPT_SSTRING: {
char *val = var;
if (save_all || !streq(val, c->def.d_char)) {
fprintf_conf(f, c->config_name, "%s\n", val[0] ? val : "");
}
continue;
}
case OPT_FUNC: {
c->ops.process_fn((const char *)c->config_name, NULL, var, f);
continue;
}
case OPT_FIXUP_FUNC:
case OPT_SAVE_FUNC:
continue;
case OPT_UNKNOWN:
break;
}
}
}
bool config_list_should_be_saved(const struct config_list *clist, void *var) {
const struct config_list *c;
for (c = clist; c->opt_type != OPT_UNKNOWN; c++) {
if (c->opt_type == OPT_SAVE_FUNC) {
return c->ops.should_save_fn(var);
}
}
return true;
}
void config_list_apply_fixups(const struct config_list *clist, void *var) {
const struct config_list *c;
for (c = clist; c->opt_type != OPT_UNKNOWN; c++) {
if (c->opt_type == OPT_FIXUP_FUNC) {
c->ops.fixup_fn(var);
break;
}
}
}
void config_list_set_defaults(const struct config_list *clist, void *config_data) {
const struct config_list *c;
for (c = clist; c->opt_type != OPT_UNKNOWN; c++) {
void *var = config_data + c->var_offset;
switch (c->opt_type) {
case OPT_INT8: {
*(int8_t *)var = c->def.d_int8;
break;
}
case OPT_UINT8: {
*(uint8_t *)var = c->def.d_uint8;
break;
}
case OPT_INT32: {
*(int32_t *)var = c->def.d_int32;
break;
}
case OPT_UINT32: {
*(uint32_t *)var = c->def.d_uint32;
break;
}
case OPT_STRING: {
char **scfg = var;
NULLFREE(*scfg);
if (c->def.d_char)
*scfg = cs_strdup(c->def.d_char);
break;
}
case OPT_SSTRING: {
char *scfg = var;
scfg[0] = '\0';
if (c->def.d_char && strlen(c->def.d_char))
cs_strncpy(scfg, c->def.d_char, c->str_size - 1);
break;
}
case OPT_FUNC: {
c->ops.process_fn((const char *)c->config_name, "", var, NULL);
break;
}
case OPT_SAVE_FUNC:
case OPT_FIXUP_FUNC:
case OPT_UNKNOWN:
continue;
}
}
return;
}
void config_list_free_values(const struct config_list *clist, void *config_data) {
const struct config_list *c;
for (c = clist; c->opt_type != OPT_UNKNOWN; c++) {
void *var = config_data + c->var_offset;
if (c->opt_type == OPT_STRING) {
char **scfg = var;
NULLFREE(*scfg);
}
}
return;
}
void config_list_gc_values(const struct config_list *clist, void *config_data) {
const struct config_list *c;
for (c = clist; c->opt_type != OPT_UNKNOWN; c++) {
void *var = config_data + c->var_offset;
if (c->opt_type == OPT_STRING) {
char **scfg = var;
add_garbage(*scfg);
}
}
return;
}
int config_section_is_active(const struct config_sections *sec) {
if (!sec)
return 0;
if (sec->config[0].opt_type == OPT_UNKNOWN)
return 0;
return 1;
}
const struct config_sections *config_find_section(const struct config_sections *conf, char *section_name) {
const struct config_sections *sec;
for (sec = conf; sec && sec->section; sec++) {
if (streq(section_name, sec->section)) {
return sec;
}
}
return NULL;
}
void config_sections_save(const struct config_sections *conf, FILE *f, void *var) {
const struct config_sections *sec;
for (sec = conf; sec && sec->section; sec++) {
if (config_section_is_active(sec) && config_list_should_be_saved(sec->config, var)) {
fprintf(f, "[%s]\n", sec->section);
config_list_apply_fixups(sec->config, var);
config_list_save(f, sec->config, var, cfg.http_full_cfg);
fprintf(f, "\n");
}
}
}
void config_sections_set_defaults(const struct config_sections *conf, void *var) {
const struct config_sections *sec;
for (sec = conf; sec && sec->section; sec++) {
if (config_section_is_active(sec))
config_list_set_defaults(sec->config, var);
}
}
void config_sections_free(const struct config_sections *conf, void *var) {
const struct config_sections *sec;
for (sec = conf; sec && sec->section; sec++) {
if (config_section_is_active(sec)) {
config_list_free_values(sec->config, var);
}
}
}
void config_set_value(const struct config_sections *conf, char *section, const char *token, char *value, void *var) {
const struct config_sections *sec = config_find_section(conf, section);
if (!sec) {
fprintf(stderr, "WARNING: Unknown section '%s'.\n", section);
return;
}
if (config_section_is_active(sec)) {
if (!config_list_parse(sec->config, token, value, var)) {
fprintf(stderr, "WARNING: In section [%s] unknown setting '%s=%s' tried.\n",
section, token, value);
}
} else {
fprintf(stderr, "WARNING: Section is not active '%s'.\n", section);
}
}
static FILE *__open_config_file(const char *conf_filename, bool die_on_err) {
unsigned int len = strlen(cs_confdir) + strlen(conf_filename) + 8;
char filename[len];
snprintf(filename, len, "%s%s", cs_confdir, conf_filename);
FILE *f = fopen(filename, "r");
if (!f) {
if (die_on_err) {
fprintf(stderr, "ERROR: Cannot open file \"%s\" (errno=%d %s)", filename, errno, strerror(errno));
fprintf(stderr, "\n");
exit(1);
} else {
cs_log("ERROR: Cannot open file \"%s\" (errno=%d %s)", filename, errno, strerror(errno));
}
return NULL;
}
return f;
}
FILE *open_config_file(const char *conf_filename) {
return __open_config_file(conf_filename, false);
}
FILE *open_config_file_or_die(const char *conf_filename) {
return __open_config_file(conf_filename, true);
}
FILE *create_config_file(const char *conf_filename) {
unsigned int len = strlen(cs_confdir) + strlen(conf_filename) + 8;
char temp_file[len];
snprintf(temp_file, len, "%s%s.tmp", cs_confdir, conf_filename);
FILE *f = fopen(temp_file, "w");
if (!f) {
cs_log("ERROR: Cannot create file \"%s\" (errno=%d %s)", temp_file, errno, strerror(errno));
return NULL;
}
setvbuf(f, NULL, _IOFBF, 16 * 1024);
fprintf(f, "# %s generated automatically by Streamboard OSCAM %s SVN r%s\n",
conf_filename, CS_VERSION, CS_SVN_VERSION);
fprintf(f, "# Read more: http://www.streamboard.tv/svn/oscam/trunk/Distribution/doc/txt/%s.txt\n\n",
conf_filename);
return f;
}
bool flush_config_file(FILE *f, const char *conf_filename) {
unsigned int len = strlen(cs_confdir) + strlen(conf_filename) + 8;
char temp_file[len], destfile[len], bakfile[len];
snprintf(destfile, len, "%s%s" , cs_confdir, conf_filename);
snprintf(temp_file, len, "%s%s.tmp", cs_confdir, conf_filename);
snprintf(bakfile, len, "%s%s.bak", cs_confdir, conf_filename);
fclose(f);
return safe_overwrite_with_bak(destfile, temp_file, bakfile, 0);
}