87 lines
1.9 KiB
C
87 lines
1.9 KiB
C
#include "conf.h"
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#include <ctype.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#define MAX_LINE 256
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#define MAX_VAL 128
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/* Trim leading/trailing whitespace */
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static char *trim(char *str) {
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char *end;
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while (isspace((unsigned char)*str)) str++;
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if (*str == 0)
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return str; // only spaces
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end = str + strnlen(str, MAX_VAL) - 1;
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while (end > str && isspace((unsigned char)*end)) end--;
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end[1] = '\0';
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return str;
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}
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/* Load INI-style config */
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Config *config_load(const char *filename) {
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FILE *f = fopen(filename, "r");
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if (!f)
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return NULL;
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Config *cfg = calloc(1, sizeof(Config));
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char line[MAX_LINE];
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while (fgets(line, sizeof(line), f)) {
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char *s = trim(line);
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// Skip empty or comment lines
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if (*s == '\0' || *s == '#' || *s == ';')
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continue;
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char *eq = strchr(s, '=');
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if (!eq)
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continue; // invalid line, skip
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*eq = '\0';
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char *key = trim(s);
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char *val = trim(eq + 1);
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ConfigEntry *entry = malloc(sizeof(ConfigEntry));
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entry->key = strndup(key, MAX_VAL);
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entry->value = strndup(val, MAX_VAL);
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entry->next = cfg->head;
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cfg->head = entry;
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}
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fclose(f);
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return cfg;
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}
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ConfigEntry *config_get_next(ConfigEntry *entry, int *index) {
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if (!entry)
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return NULL;
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return (0 == (*index)++) ? entry : entry->next;
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}
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/* Get value for a key */
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const char *config_get(Config *cfg, const char *key) {
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for (ConfigEntry *e = cfg->head; e; e = e->next) {
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if (strncmp(e->key, key, MAX_VAL) == 0)
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return e->value;
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}
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return NULL;
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}
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/* Free the config struct */
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void config_free(Config *cfg) {
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ConfigEntry *e = cfg->head;
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while (e) {
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ConfigEntry *next = e->next;
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free(e->key);
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free(e->value);
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free(e);
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e = next;
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}
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free(cfg);
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}
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