Function pkgmap_read_file

src/pipeline/pass_pkgmap.c:35–57

Read an entire file into a malloc'd buffer. Returns NULL on failure. */

/* Read an entire file into a malloc'd buffer. Returns NULL on failure. */
static char *pkgmap_read_file(const char *path, int *out_len) {
    FILE *f = cbm_fopen(path, "rb");
    if (!f) {
        return NULL;
    }
    (void)fseek(f, 0, SEEK_END);
    long size = ftell(f);
    (void)fseek(f, 0, SEEK_SET);
    if (size <= 0 || size > (long)CBM_SZ_1K * CBM_SZ_1K) { /* 1MB cap for manifests */
        (void)fclose(f);
        return NULL;
    }
    char *buf = (char *)malloc((size_t)size + SKIP_ONE);
    if (!buf) {
        (void)fclose(f);
        return NULL;
    }
    size_t nread = fread(buf, SKIP_ONE, (size_t)size, f);
    (void)fclose(f);
    buf[nread] = '\0';
    *out_len = (int)nread;
    return buf;
}

/* ── Constants ─────────────────────────────────────────────────── */