src/stdio/__string_read.c

   1 #include "stdio_impl.h"
   2 #include <string.h>
   3
   4 size_t __string_read(FILE *f, unsigned char *buf, size_t len)
   5 {
   6         char *src = f->cookie;
   7         size_t k = len+256;
   8         char *end = memchr(src, 0, k);
   9         if (end) k = end-src;
  10         if (k < len) len = k;
  11         memcpy(buf, src, len);
  12         f->rpos = (void *)(src+len);
  13         f->rend = (void *)(src+k);
  14         f->cookie = src+k;
  15         return len;
  16 }