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zmapfd.c

Absolute File Name:

/home/opencoverage/opencoverage/guest-scripts/bash/src/lib/sh/zmapfd.c

Source code

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Line Source Count

1 /* zmapfd - read contents of file descriptor into a newly-allocated buffer */ -

2 -

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 "bashansi.h" -

32 #include "command.h" -

33 #include "general.h" -

34 -

35 #if !defined (errno) -

36 extern int errno; -

37 #endif -

38 -

39 extern ssize_t zread __P((int, char *, size_t)); -

40 -

41 /* Dump contents of file descriptor FD to *OSTR. FN is the filename for -

42 error messages (not used right now). */ -

43 int -

44 zmapfd (fd, ostr, fn) -

45 int fd; -

46 char **ostr; -

47 char *fn; -

48 { -

49 ssize_t nr; -

50 int rval; -

51 char lbuf[128]; -

52 char *result; -

53 int rsize, rind; -

54 -

55 rval = 0; -

56 result = (char *)xmalloc (rsize = 64); -

57 rind = 0; -

58 -

59 while (1) -

60 { -

61 nr = zread (fd, lbuf, sizeof (lbuf)); -

if (nr == 0)

nr == 0	Description
TRUE	evaluated 20 times by 1 test Evaluated by: Self test
FALSE	evaluated 6 times by 1 test Evaluated by: Self test

6-20

63 { -

64 rval = rind; -

break;

executed 20 times by 1 test: break;

Executed by:

Self test

66 } -

else if (nr < 0)

nr < 0	Description
TRUE	never evaluated
FALSE	evaluated 6 times by 1 test Evaluated by: Self test

0-6

68 { -

69 free (result); -

if (ostr)

ostr	Description
TRUE	never evaluated
FALSE	never evaluated

*ostr = (char *)NULL;

never executed: *ostr = (char *) ((void *)0) ;

return -1;

never executed: return -1;

73 } -

74 -

RESIZE_MALLOCED_BUFFER (result, rind, nr, rsize, 128);

never executed: rsize += (128);

never executed: end of block

(rind) + (nr) >= rsize	Description
TRUE	never evaluated
FALSE	evaluated 6 times by 1 test Evaluated by: Self test

(rind) + (nr) >= rsize	Description
TRUE	never evaluated
FALSE	never evaluated

0-6

76 memcpy (result+rind, lbuf, nr); -

77 rind += nr; -

}

executed 6 times by 1 test: end of block

Executed by:

Self test

79 -

RESIZE_MALLOCED_BUFFER (result, rind, 1, rsize, 128);

never executed: rsize += (128);

never executed: end of block

(rind) + (1) >= rsize	Description
TRUE	never evaluated
FALSE	evaluated 20 times by 1 test Evaluated by: Self test

(rind) + (1) >= rsize	Description
TRUE	never evaluated
FALSE	never evaluated

0-20

81 result[rind] = '\0'; -

82 -

if (ostr)

ostr	Description
TRUE	evaluated 20 times by 1 test Evaluated by: Self test
FALSE	never evaluated

0-20

*ostr = result;

executed 20 times by 1 test: *ostr = result;

Executed by:

Self test

85 else -

free (result);

never executed: sh_xfree((result), "zmapfd.c", 86);

87 -

return rval;

executed 20 times by 1 test: return rval;

Executed by:

Self test

89 } -

Source code

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