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zcatfd.c

Absolute File Name:/home/opencoverage/opencoverage/guest-scripts/bash/src/lib/sh/zcatfd.c
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1/* zcatfd - copy contents of file descriptor to another */-
2-
3/* Copyright (C) 2002 Free Software Foundation, Inc.-
4-
5 This file is part of GNU Bash, the Bourne Again SHell.-
6-
7 Bash is free software: you can redistribute it and/or modify-
8 it under the terms of the GNU General Public License as published by-
9 the Free Software Foundation, either version 3 of the License, or-
10 (at your option) any later version.-
11-
12 Bash is distributed in the hope that it will be useful,-
13 but WITHOUT ANY WARRANTY; without even the implied warranty of-
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the-
15 GNU General Public License for more details.-
16-
17 You should have received a copy of the GNU General Public License-
18 along with Bash. If not, see <http://www.gnu.org/licenses/>.-
19*/-
20-
21#include <config.h>-
22-
23#include <sys/types.h>-
24-
25#if defined (HAVE_UNISTD_H)-
26# include <unistd.h>-
27#endif-
28-
29#include <errno.h>-
30-
31#include <stdc.h>-
32-
33#if !defined (errno)-
34extern int errno;-
35#endif-
36-
37extern ssize_t zread __P((int, char *, size_t));-
38extern int zwrite __P((int, char *, ssize_t));-
39-
40/* Dump contents of file descriptor FD to OFD. FN is the filename for-
41 error messages (not used right now). */-
42int-
43zcatfd (fd, ofd, fn)-
44 int fd, ofd;-
45 char *fn;-
46{-
47 ssize_t nr;-
48 int rval;-
49 char lbuf[128];-
50-
51 rval = 0;-
52 while (1)-
53 {-
54 nr = zread (fd, lbuf, sizeof (lbuf));-
55 if (nr == 0)
nr == 0Description
TRUEevaluated 3 times by 1 test
Evaluated by:
  • Self test
FALSEevaluated 3 times by 1 test
Evaluated by:
  • Self test
3
56 break;
executed 3 times by 1 test: break;
Executed by:
  • Self test
3
57 else if (nr < 0)
nr < 0Description
TRUEnever evaluated
FALSEevaluated 3 times by 1 test
Evaluated by:
  • Self test
0-3
58 {-
59 rval = -1;-
60 break;
never executed: break;
0
61 }-
62 else if (zwrite (ofd, lbuf, nr) < 0)
zwrite (ofd, lbuf, nr) < 0Description
TRUEnever evaluated
FALSEevaluated 3 times by 1 test
Evaluated by:
  • Self test
0-3
63 {-
64 rval = -1;-
65 break;
never executed: break;
0
66 }-
67 }
executed 3 times by 1 test: end of block
Executed by:
  • Self test
3
68-
69 return rval;
executed 3 times by 1 test: return rval;
Executed by:
  • Self test
3
70}-
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