dtob-sys 0.1.1

Raw FFI bindings to the dtob C library (encoder + decoder).
Documentation 
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#include "cli.h"

uint8_t *read_file(const char *path, size_t *out_len)
{
    FILE *f = fopen(path, "rb");
    if (!f) { perror(path); return NULL; }
    fseek(f, 0, SEEK_END);
    long sz = ftell(f);
    if (sz < 0) { perror(path); fclose(f); return NULL; }
    fseek(f, 0, SEEK_SET);
    uint8_t *buf = malloc(sz ? sz : 1);
    if (!buf) { fclose(f); return NULL; }
    fread(buf, 1, sz, f);
    fclose(f);
    *out_len = sz;
    return buf;
}

char *read_text_file(const char *path)
{
    size_t len;
    uint8_t *buf = read_file(path, &len);
    if (!buf) return NULL;
    char *txt = malloc(len + 1);
    memcpy(txt, buf, len);
    txt[len] = '\0';
    free(buf);
    return txt;
}

int write_file(const char *path, const uint8_t *data, size_t len)
{
    FILE *f = fopen(path, "wb");
    if (!f) { perror(path); return 1; }
    fwrite(data, 1, len, f);
    fclose(f);
    return 0;
}


const char *detect_filetype(const char *path)
{
    const char *dot = strrchr(path, '.');
    if (!dot) return NULL;
    if (strcmp(dot, ".json") == 0) return "json";
    if (strcmp(dot, ".html") == 0 || strcmp(dot, ".htm") == 0) return "html";
    if (strcmp(dot, ".xml") == 0)  return "xml";
    if (strcmp(dot, ".htmx") == 0) return "xml";
    return NULL;
}