#include "../include/extract_alloc.h"

#include "mem.h"

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

#ifdef _MSC_VER
    #include "compat_va_copy.h"
#endif


void extract_bzero(void *b, size_t len)
{
    memset(b, 0, len);
}

int extract_vasprintf(extract_alloc_t* alloc, char** out, const char* format, va_list va)
{
    int n;
    int n2;
    va_list va2;
    va_copy(va2, va);
    n = vsnprintf(NULL, 0, format, va);
    if (n < 0) return n;
    if (extract_malloc(alloc, out, n + 1)) return -1;
    n2 = vsnprintf(*out, n + 1, format, va2);
    va_end(va2);
    assert(n2 == n);
    return n2;
}


int extract_asprintf(extract_alloc_t* alloc, char** out, const char* format, ...)
{
    va_list va;
    int     ret;
    va_start(va, format);
    ret = extract_vasprintf(alloc, out, format, va);
    va_end(va);
    return ret;
}

int extract_strdup(extract_alloc_t* alloc, const char* s, char** o_out)
{
    size_t l = strlen(s) + 1;
    if (extract_malloc(alloc, o_out, l)) return -1;
    memcpy(*o_out, s, l);
    return 0;
}