Mercurial > hg > octave-lojdl > gnulib-hg
annotate lib/fprintf.c @ 9309:bbbbbf4cd1c5
Change copyright notice from GPLv2+ to GPLv3+.
| author | Bruno Haible <bruno@clisp.org> |
|---|---|
| date | Sun, 07 Oct 2007 19:14:58 +0200 |
| parents | fbb6e4d5f75b |
| children | 787bf3487678 |
| rev | line source |
|---|---|
| 8394 | 1 /* Formatted output to a stream. |
| 2 Copyright (C) 2004, 2006-2007 Free Software Foundation, Inc. | |
| 3 | |
|
9309
bbbbbf4cd1c5
Change copyright notice from GPLv2+ to GPLv3+.
Bruno Haible <bruno@clisp.org>
parents:
8394
diff
changeset
|
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 |
|
9309
bbbbbf4cd1c5
Change copyright notice from GPLv2+ to GPLv3+.
Bruno Haible <bruno@clisp.org>
parents:
8394
diff
changeset
|
6 the Free Software Foundation; either version 3 of the License, or |
|
bbbbbf4cd1c5
Change copyright notice from GPLv2+ to GPLv3+.
Bruno Haible <bruno@clisp.org>
parents:
8394
diff
changeset
|
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 | |
|
9309
bbbbbf4cd1c5
Change copyright notice from GPLv2+ to GPLv3+.
Bruno Haible <bruno@clisp.org>
parents:
8394
diff
changeset
|
14 You should have received a copy of the GNU General Public License |
|
bbbbbf4cd1c5
Change copyright notice from GPLv2+ to GPLv3+.
Bruno Haible <bruno@clisp.org>
parents:
8394
diff
changeset
|
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 /* Some systems, like OSF/1 4.0 and Woe32, don't have EOVERFLOW. */ | |
| 33 #ifndef EOVERFLOW | |
| 34 # define EOVERFLOW E2BIG | |
| 35 #endif | |
| 36 | |
| 37 /* Print formatted output to the stream FP. | |
| 38 Return string length of formatted string. On error, return a negative | |
| 39 value. */ | |
| 40 int | |
| 41 fprintf (FILE *fp, const char *format, ...) | |
| 42 { | |
| 43 char buf[2000]; | |
| 44 char *output; | |
| 45 size_t len; | |
| 46 size_t lenbuf = sizeof (buf); | |
| 47 va_list args; | |
| 48 | |
| 49 va_start (args, format); | |
| 50 output = vasnprintf (buf, &lenbuf, format, args); | |
| 51 len = lenbuf; | |
| 52 va_end (args); | |
| 53 | |
| 54 if (!output) | |
| 55 { | |
| 56 fseterr (fp); | |
| 57 return -1; | |
| 58 } | |
| 59 | |
| 60 if (fwrite (output, 1, len, fp) < len) | |
| 61 { | |
| 62 if (output != buf) | |
| 63 { | |
| 64 int saved_errno = errno; | |
| 65 free (output); | |
| 66 errno = saved_errno; | |
| 67 } | |
| 68 return -1; | |
| 69 } | |
| 70 | |
| 71 if (len > INT_MAX) | |
| 72 { | |
| 73 errno = EOVERFLOW; | |
| 74 fseterr (fp); | |
| 75 return -1; | |
| 76 } | |
| 77 | |
| 78 return len; | |
| 79 } |