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120 lines
3.3 KiB
120 lines
3.3 KiB
#include <stdlib.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <string.h>
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#include "utils.h"
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#include "jconf.h"
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#include "json.h"
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#include "string.h"
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#define INT_DIGITS 19 /* enough for 64 bit integer */
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static char *itoa(int i)
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{
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/* Room for INT_DIGITS digits, - and '\0' */
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static char buf[INT_DIGITS + 2];
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char *p = buf + INT_DIGITS + 1; /* points to terminating '\0' */
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if (i >= 0) {
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do {
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*--p = '0' + (i % 10);
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i /= 10;
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} while (i != 0);
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return p;
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}
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else { /* i < 0 */
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do {
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*--p = '0' - (i % 10);
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i /= 10;
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} while (i != 0);
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*--p = '-';
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}
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return p;
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}
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static char *to_string(const json_value *value) {
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if (value->type == json_string) {
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return strndup(value->u.string.ptr, value->u.string.length);
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} else if (value->type == json_integer) {
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return strdup(itoa(value->u.integer));
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} else if (value->type == json_null) {
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return "null";
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} else {
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LOGE("%d\n", value->type);
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FATAL("Invalid config format.\n");
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}
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return 0;
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}
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static int to_int(const json_value *value) {
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if (value->type == json_string) {
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return atoi(value->u.string.ptr);
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} else if (value->type == json_integer) {
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return value->u.integer;
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} else {
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FATAL("Invalid config format.\n");
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}
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return 0;
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}
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jconf_t *read_jconf(const char* file) {
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static jconf_t conf;
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char *buf;
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json_value *obj;
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FILE *f = fopen(file, "r");
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if (f == NULL) FATAL("Invalid config path.\n");
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fseek(f, 0, SEEK_END);
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long pos = ftell(f);
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fseek(f, 0, SEEK_SET);
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if (pos >= MAX_CONF_SIZE) FATAL("Too large config file.\n");
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buf = malloc(pos);
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if (buf == NULL) FATAL("No enough memory.\n");
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fread(buf, pos, 1, f);
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fclose(f);
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obj = json_parse(buf);
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if (obj->type == json_object) {
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int i, j;
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for (i = 0; i < obj->u.object.length; i++) {
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char *name = obj->u.object.values[i].name;
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json_value *value = obj->u.object.values[i].value;
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if (strcmp(name, "server") == 0) {
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if (value->type == json_array) {
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for (j = 0; j < value->u.array.length; j++) {
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if (j >= MAX_REMOTE_NUM) break;
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json_value *v = value->u.array.values[j];
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conf.remote_host[j] = to_string(v);
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conf.remote_num = j + 1;
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}
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} else if (value->type == json_string) {
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conf.remote_host[0] = to_string(value);
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conf.remote_num = 1;
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}
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} else if (strcmp(name, "server_port") == 0) {
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conf.remote_port = to_string(value);
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} else if (strcmp(name, "local_port") == 0) {
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conf.local_port = to_string(value);
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} else if (strcmp(name, "password") == 0) {
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conf.password = to_string(value);
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} else if (strcmp(name, "method") == 0) {
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conf.method = to_string(value);
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} else if (strcmp(name, "timeout") == 0) {
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conf.timeout = to_string(value);
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}
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}
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} else {
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FATAL("Invalid config file\n");
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}
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free(buf);
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json_value_free(obj);
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return &conf;
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}
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