linux c语言 ini

[section1]
key1=value1
key2=value2

[section2]
keyA=valueA

#include <stdio.h>
#include <string.h>

#define MAX_LINE_LENGTH 256
#define MAX_SECTION_LENGTH 64
#define MAX_KEY_LENGTH 64

typedef struct {
    char section[MAX_SECTION_LENGTH];
    char key[MAX_KEY_LENGTH];
    char value[MAX_LINE_LENGTH];
} IniEntry;

void parse_ini(const char *filename, IniEntry *entries, int *entry_count) {
    FILE *file = fopen(filename, "r");
    if (!file) {
        perror("Failed to open file");
        return;
    }

    char line[MAX_LINE_LENGTH];
    char current_section[MAX_SECTION_LENGTH] = "";
    *entry_count = 0;

    while (fgets(line, sizeof(line), file)) {
        // Trim leading whitespace
        char *start = line;
        while (*start == ' ' || *start == '\t') start++;

        // Skip empty lines and comments
        if (*start == ';' || *start == '#' || *start == '\n') continue;

        // Check for section
        if (line[start] == '[') {
            sscanf(start, "[%[^]]]", current_section);
            continue;
        }

        // Parse key-value pairs
        char key[MAX_KEY_LENGTH], value[MAX_LINE_LENGTH];
        if (sscanf(start, "%[^=]=%s", key, value) == 2) {
            strcpy(entries[*entry_count].section, current_section);
            strcpy(entries[*entry_count].key, key);
            strcpy(entries[*entry_count].value, value);
            (*entry_count)++;
        }
    }

    fclose(file);
}

int main() {
    IniEntry entries[100];
    int entry_count = 0;

    parse_ini("config.ini", entries, &entry_count);

    for (int i = 0; i < entry_count; i++) {
        printf("[%s] %s=%s
", entries[i].section, entries[i].key, entries[i].value);
    }

    return 0;
}