forked from public/pyceo
92 lines
2.6 KiB
C
92 lines
2.6 KiB
C
#include <stdlib.h>
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#include <stdio.h>
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#include <limits.h>
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#include "config.h"
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#include "parser.h"
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#include "util.h"
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#define DEF_STR NULL
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#define DEF_INT LONG_MIN
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#define CONFIG_STR(x) char *x = DEF_STR;
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#define CONFIG_INT(x) long x = DEF_INT;
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#include "config-vars.h"
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#undef CONFIG_STR
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#undef CONFIG_INT
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struct config_var {
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const char *name;
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void *p;
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enum { CONFIG_TYPE_STR, CONFIG_TYPE_INT } type;
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};
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#define CONFIG_STR(x) {#x, &x, CONFIG_TYPE_STR },
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#define CONFIG_INT(x) {#x, &x, CONFIG_TYPE_INT },
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static struct config_var config_vars[] = {
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#include "config-vars.h"
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};
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#undef CONFIG_STR
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#undef CONFIG_INT
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const char *default_config_dir = "/etc/csc";
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const char *config_filename = "accounts.cf";
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const char *config_dir;
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void config_var(char *var, char *val) {
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int i;
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for (i = 0; i < sizeof(config_vars)/sizeof(*config_vars); i++) {
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if (!strcmp(var, config_vars[i].name)) {
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switch (config_vars[i].type) {
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case CONFIG_TYPE_STR:
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if (*(char **)config_vars[i].p)
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free(*(char **)config_vars[i].p);
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*(char **)config_vars[i].p = xstrdup(val);
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break;
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case CONFIG_TYPE_INT:
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*(long *)config_vars[i].p = config_long(var, val);
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break;
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default:
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fatal("unknown config var type %d", config_vars[i].type);
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}
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}
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}
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}
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void configure(void) {
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int i;
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char conffile[1024];
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config_dir = getenv("CEO_CONFIG_DIR") ?: default_config_dir;
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if (snprintf(conffile, sizeof(conffile), "%s/%s", config_dir, config_filename) >= sizeof(conffile))
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fatal("huge config path");
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config_parse(conffile);
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for (i = 0; i < sizeof(config_vars)/sizeof(*config_vars); i++) {
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switch (config_vars[i].type) {
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case CONFIG_TYPE_STR:
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if (*(char **)config_vars[i].p == DEF_STR)
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badconf("undefined string variable: %s", config_vars[i].name);
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break;
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case CONFIG_TYPE_INT:
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if (*(long *)config_vars[i].p == DEF_INT)
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badconf("undefined integer variable: %s", config_vars[i].name);
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break;
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default:
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fatal("unknown config var type %d", config_vars[i].type);
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}
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}
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}
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void free_config(void) {
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for (int i = 0; i < sizeof(config_vars)/sizeof(*config_vars); i++) {
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if (config_vars[i].type == CONFIG_TYPE_STR) {
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free(*(char **)config_vars[i].p);
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*(char **)config_vars[i].p = NULL;
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}
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}
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}
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