Mercurial > hg > octave-lojdl > gnulib-hg
annotate lib/fprintf.c @ 17464:290d581e2e24
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| author | Karl Berry <karl@freefriends.org> |
|---|---|
| date | Sat, 10 Aug 2013 07:10:55 -0700 |
| parents | e542fd46ad6f |
| children |
| rev | line source |
|---|---|
| 8394 | 1 /* Formatted output to a stream. |
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maint: update all copyright year number ranges
Eric Blake <eblake@redhat.com>
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2 Copyright (C) 2004, 2006-2013 Free Software Foundation, Inc. |
| 8394 | 3 |
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Change copyright notice from GPLv2+ to GPLv3+.
Bruno Haible <bruno@clisp.org>
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4 This program is free software: you can redistribute it and/or modify |
| 8394 | 5 it under the terms of the GNU General Public License as published by |
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Change copyright notice from GPLv2+ to GPLv3+.
Bruno Haible <bruno@clisp.org>
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6 the Free Software Foundation; either version 3 of the License, or |
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bbbbbf4cd1c5
Change copyright notice from GPLv2+ to GPLv3+.
Bruno Haible <bruno@clisp.org>
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7 (at your option) any later version. |
| 8394 | 8 |
| 9 This program is distributed in the hope that it will be useful, | |
| 10 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 12 GNU General Public License for more details. | |
| 13 | |
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Change copyright notice from GPLv2+ to GPLv3+.
Bruno Haible <bruno@clisp.org>
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14 You should have received a copy of the GNU General Public License |
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Bruno Haible <bruno@clisp.org>
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15 along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
| 8394 | 16 |
| 17 #ifdef HAVE_CONFIG_H | |
| 18 # include <config.h> | |
| 19 #endif | |
| 20 | |
| 21 /* Specification. */ | |
| 22 #include <stdio.h> | |
| 23 | |
| 24 #include <errno.h> | |
| 25 #include <limits.h> | |
| 26 #include <stdarg.h> | |
| 27 #include <stdlib.h> | |
| 28 | |
| 29 #include "fseterr.h" | |
| 30 #include "vasnprintf.h" | |
| 31 | |
| 32 /* Print formatted output to the stream FP. | |
| 33 Return string length of formatted string. On error, return a negative | |
| 34 value. */ | |
| 35 int | |
| 36 fprintf (FILE *fp, const char *format, ...) | |
| 37 { | |
| 38 char buf[2000]; | |
| 39 char *output; | |
| 40 size_t len; | |
| 41 size_t lenbuf = sizeof (buf); | |
| 42 va_list args; | |
| 43 | |
| 44 va_start (args, format); | |
| 45 output = vasnprintf (buf, &lenbuf, format, args); | |
| 46 len = lenbuf; | |
| 47 va_end (args); | |
| 48 | |
| 49 if (!output) | |
| 50 { | |
| 51 fseterr (fp); | |
| 52 return -1; | |
| 53 } | |
| 54 | |
| 55 if (fwrite (output, 1, len, fp) < len) | |
| 56 { | |
| 57 if (output != buf) | |
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Bruno Haible <bruno@clisp.org>
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58 { |
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Bruno Haible <bruno@clisp.org>
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59 int saved_errno = errno; |
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Bruno Haible <bruno@clisp.org>
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60 free (output); |
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Bruno Haible <bruno@clisp.org>
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61 errno = saved_errno; |
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Use spaces for indentation, not tabs.
Bruno Haible <bruno@clisp.org>
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62 } |
| 8394 | 63 return -1; |
| 64 } | |
| 65 | |
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*printf: Fix memory leak.
Joel E. Denny <jdenny@clemson.edu>
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66 if (output != buf) |
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*printf: Fix memory leak.
Joel E. Denny <jdenny@clemson.edu>
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67 free (output); |
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*printf: Fix memory leak.
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68 |
| 8394 | 69 if (len > INT_MAX) |
| 70 { | |
| 71 errno = EOVERFLOW; | |
| 72 fseterr (fp); | |
| 73 return -1; | |
| 74 } | |
| 75 | |
| 76 return len; | |
| 77 } |