Mercurial > hg > octave-lojdl > gnulib-hg

annotate lib/getdelim.c @ 7475:99b9b91e548c

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Use HAVE_LONG_LONG_INT instead of HAVE_LONG_LONG.
author Bruno Haible <bruno@clisp.org>
date Wed, 11 Oct 2006 16:09:38 +0000
parents 0df10a18fd16
children a88f85e4728f
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
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1 /* getdelim.c --- Implementation of replacement getdelim function.
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
parents:
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2 Copyright (C) 1994, 1996, 1997, 1998, 2001, 2003, 2005 Free
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Simon Josefsson <simon@josefsson.org>
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3 Software Foundation, Inc.
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Simon Josefsson <simon@josefsson.org>
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4
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
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5 This program is free software; you can redistribute it and/or
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
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6 modify it under the terms of the GNU General Public License as
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
parents:
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7 published by the Free Software Foundation; either version 2, or (at
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
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8 your option) any later version.
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
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9
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
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10 This program is distributed in the hope that it will be useful, but
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
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11 WITHOUT ANY WARRANTY; without even the implied warranty of
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
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13 General Public License for more details.
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
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14
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
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15 You should have received a copy of the GNU General Public License
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
parents:
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16 along with this program; if not, write to the Free Software
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
parents:
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17 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
parents:
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18 02110-1301, USA. */
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
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19
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
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20 /* Ported from glibc by Simon Josefsson. */
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
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21
6259
96c32553b4c6 Use a consistent style for including <config.h>.
Paul Eggert <eggert@cs.ucla.edu>
parents: 6188
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22 #ifdef HAVE_CONFIG_H
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cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
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23 # include <config.h>
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
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24 #endif
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
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25
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0bf4e78a4658 * getdelim.c: Include getdelim.h first. Include <limits.h>.
Paul Eggert <eggert@cs.ucla.edu>
parents: 6320
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26 #include "getdelim.h"
0bf4e78a4658 * getdelim.c: Include getdelim.h first. Include <limits.h>.
Paul Eggert <eggert@cs.ucla.edu>
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27
0bf4e78a4658 * getdelim.c: Include getdelim.h first. Include <limits.h>.
Paul Eggert <eggert@cs.ucla.edu>
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28 #include <limits.h>
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cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
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29 #include <stdlib.h>
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
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30 #include <errno.h>
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31
6338
0df10a18fd16 * lib/getdelim.c (SIZE_MAX): New macro, if not already defined.
Derek R. Price <derek@ximbiot.com>
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32 #ifndef SIZE_MAX
0df10a18fd16 * lib/getdelim.c (SIZE_MAX): New macro, if not already defined.
Derek R. Price <derek@ximbiot.com>
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33 # define SIZE_MAX ((size_t) -1)
0df10a18fd16 * lib/getdelim.c (SIZE_MAX): New macro, if not already defined.
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34 #endif
6327
0bf4e78a4658 * getdelim.c: Include getdelim.h first. Include <limits.h>.
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35 #ifndef SSIZE_MAX
0bf4e78a4658 * getdelim.c: Include getdelim.h first. Include <limits.h>.
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36 # define SSIZE_MAX ((ssize_t) (SIZE_MAX / 2))
0bf4e78a4658 * getdelim.c: Include getdelim.h first. Include <limits.h>.
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37 #endif
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cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
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38 #if !HAVE_FLOCKFILE
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39 # undef flockfile
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40 # define flockfile(x) ((void) 0)
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41 #endif
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
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42 #if !HAVE_FUNLOCKFILE
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
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43 # undef funlockfile
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
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44 # define funlockfile(x) ((void) 0)
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45 #endif
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
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46
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
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47 /* Read up to (and including) a DELIMITER from FP into *LINEPTR (and
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
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48 NUL-terminate it). *LINEPTR is a pointer returned from malloc (or
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
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49 NULL), pointing to *N characters of space. It is realloc'ed as
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
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50 necessary. Returns the number of characters read (not including
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
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51 the null terminator), or -1 on error or EOF. */
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
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52
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
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53 ssize_t
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
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54 getdelim (char **lineptr, size_t *n, int delimiter, FILE *fp)
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
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55 {
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0bf4e78a4658 * getdelim.c: Include getdelim.h first. Include <limits.h>.
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56 ssize_t result;
0bf4e78a4658 * getdelim.c: Include getdelim.h first. Include <limits.h>.
Paul Eggert <eggert@cs.ucla.edu>
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57 size_t cur_len = 0;
6011
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58
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
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59 if (lineptr == NULL || n == NULL || fp == NULL)
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
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60 {
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
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61 errno = EINVAL;
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
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62 return -1;
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
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63 }
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
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64
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
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65 flockfile (fp);
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
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66
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
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67 if (*lineptr == NULL || *n == 0)
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
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68 {
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
parents:
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69 *n = 120;
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
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70 *lineptr = (char *) malloc (*n);
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
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71 if (*lineptr == NULL)
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
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72 {
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
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73 result = -1;
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
parents:
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74 goto unlock_return;
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
parents:
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75 }
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
parents:
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76 }
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
parents:
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77
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
parents:
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78 for (;;)
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
parents:
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79 {
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
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80 int i;
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
parents:
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81
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
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82 i = getc (fp);
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
parents:
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83 if (i == EOF)
6327
0bf4e78a4658 * getdelim.c: Include getdelim.h first. Include <limits.h>.
Paul Eggert <eggert@cs.ucla.edu>
parents: 6320
diff changeset
84 {
0bf4e78a4658 * getdelim.c: Include getdelim.h first. Include <limits.h>.
Paul Eggert <eggert@cs.ucla.edu>
parents: 6320
diff changeset
85 result = -1;
0bf4e78a4658 * getdelim.c: Include getdelim.h first. Include <limits.h>.
Paul Eggert <eggert@cs.ucla.edu>
parents: 6320
diff changeset
86 break;
0bf4e78a4658 * getdelim.c: Include getdelim.h first. Include <limits.h>.
Paul Eggert <eggert@cs.ucla.edu>
parents: 6320
diff changeset
87 }
6011
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
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88
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
parents:
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89 /* Make enough space for len+1 (for final NUL) bytes. */
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
parents:
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90 if (cur_len + 1 >= *n)
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
parents:
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91 {
6327
0bf4e78a4658 * getdelim.c: Include getdelim.h first. Include <limits.h>.
Paul Eggert <eggert@cs.ucla.edu>
parents: 6320
diff changeset
92 size_t needed_max =
0bf4e78a4658 * getdelim.c: Include getdelim.h first. Include <limits.h>.
Paul Eggert <eggert@cs.ucla.edu>
parents: 6320
diff changeset
93 SSIZE_MAX < SIZE_MAX ? (size_t) SSIZE_MAX + 1 : SIZE_MAX;
0bf4e78a4658 * getdelim.c: Include getdelim.h first. Include <limits.h>.
Paul Eggert <eggert@cs.ucla.edu>
parents: 6320
diff changeset
94 size_t needed = 2 * *n + 1; /* Be generous. */
6011
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
parents:
diff changeset
95 char *new_lineptr;
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
parents:
diff changeset
96
6327
0bf4e78a4658 * getdelim.c: Include getdelim.h first. Include <limits.h>.
Paul Eggert <eggert@cs.ucla.edu>
parents: 6320
diff changeset
97 if (needed_max < needed)
0bf4e78a4658 * getdelim.c: Include getdelim.h first. Include <limits.h>.
Paul Eggert <eggert@cs.ucla.edu>
parents: 6320
diff changeset
98 needed = needed_max;
0bf4e78a4658 * getdelim.c: Include getdelim.h first. Include <limits.h>.
Paul Eggert <eggert@cs.ucla.edu>
parents: 6320
diff changeset
99 if (cur_len + 1 >= needed)
6011
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
parents:
diff changeset
100 {
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
parents:
diff changeset
101 result = -1;
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
parents:
diff changeset
102 goto unlock_return;
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
parents:
diff changeset
103 }
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
parents:
diff changeset
104
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
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diff changeset
105 new_lineptr = (char *) realloc (*lineptr, needed);
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
parents:
diff changeset
106 if (new_lineptr == NULL)
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
parents:
diff changeset
107 {
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
parents:
diff changeset
108 result = -1;
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
parents:
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109 goto unlock_return;
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
parents:
diff changeset
110 }
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
parents:
diff changeset
111
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
parents:
diff changeset
112 *lineptr = new_lineptr;
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
parents:
diff changeset
113 *n = needed;
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
parents:
diff changeset
114 }
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
parents:
diff changeset
115
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
parents:
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116 (*lineptr)[cur_len] = i;
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
parents:
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117 cur_len++;
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
parents:
diff changeset
118
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
parents:
diff changeset
119 if (i == delimiter)
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
parents:
diff changeset
120 break;
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
parents:
diff changeset
121 }
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
parents:
diff changeset
122 (*lineptr)[cur_len] = '\0';
6188
665f4d41d10b 2005-08-31 Derek Price <derek@ximbiot.com>
Simon Josefsson <simon@josefsson.org>
parents: 6011
diff changeset
123 result = cur_len ? cur_len : result;
6011
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
parents:
diff changeset
124
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
parents:
diff changeset
125 unlock_return:
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
parents:
diff changeset
126 funlockfile (fp);
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
parents:
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127 return result;
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
parents:
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128 }