bmv

Batch file moving utilities
git clone git://jacobedwards.org/bmv
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slurp.c (1137B)

      1 /*
      2  * Copyright (c) 2023 Jacob R. Edwards <jacob@jacobedwards.org>
      3  *
      4  * Permission to use, copy, modify, and distribute this software for any
      5  * purpose with or without fee is hereby granted, provided that the above
      6  * copyright notice and this permission notice appear in all copies.
      7  *
      8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
      9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
     10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
     11  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
     12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
     13  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
     14  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
     15  */
     16 
     17 #include <unistd.h>
     18 
     19 #include "buf.h"
     20 
     21 struct buf *
     22 slurp(int fd)
     23 {
     24 	struct buf *buf;
     25 	char tb[1024 * 8];
     26 	int len;
     27 
     28 	buf = bufnew();
     29 	if (!buf)
     30 		return NULL;
     31 
     32 	while ((len = read(fd, tb, sizeof(tb))) > 0)
     33 		if (bufappend(buf, tb, len))
     34 			goto errfreebuf;
     35 
     36 	if (len < 0) {
     37 errfreebuf:
     38 		buffree(buf);
     39 		return NULL;
     40 	}
     41 	return buf;
     42 }