static int realloc_buff()

in src/vasprintf.c [151:171]

• 17 lines of code
• 3 McCabe index (conditional complexity)

static int realloc_buff(xprintf_struct *s, size_t len)
{
  char * ptr;

  if (len + ALLOC_SECURITY_MARGIN + s->real_len > s->buffer_len) {
    len += s->real_len + ALLOC_CHUNK;
    ptr = (char *)realloc((void *)(s->buffer_base), len);
    if (ptr == NULL) {
      s->buffer_base = NULL;
      return EOF;
    }

    s->dest_string = ptr + (size_t)(s->dest_string - s->buffer_base);
    s->buffer_base = ptr;
    s->buffer_len = len;

    (s->buffer_base)[s->buffer_len - 1] = 1; /* overflow marker */
  }

  return 0;
}