libowfat/buffer/buffer_getn.c
2014-03-14 19:42:54 +00:00

16 lines
310 B
C

#include "byte.h"
#include "buffer.h"
ssize_t buffer_getn(buffer* b,char* x,size_t len) {
size_t blen;
if ((ssize_t)len < 0) len=((size_t)-1)>>1;
for(blen=0;blen<len;++blen) {
register ssize_t r;
if ((r=buffer_getc(b,x))<0) return r;
if (r==0) break;
++x;
}
return (ssize_t)blen;
}