#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 ret;
    va_list va2;

    va_copy(va2, va);
    n = vsnprintf(NULL, 0, format, va);
    if (n < 0)
    {
        ret = n;
        goto end;
    }
    if (extract_malloc(alloc, out, n + 1))
    {
        ret = -1;
        goto end;
    }
    vsnprintf(*out, n + 1, format, va2);

    ret = 0;
end:

    va_end(va2);

    return ret;
}


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;
}
