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annotate lib/getndelim2.h @ 17476:6057744acd2c default tip master

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author Karl Berry <karl@freefriends.org>
date Fri, 16 Aug 2013 06:32:22 -0700
parents e542fd46ad6f
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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7564fca8961e New module 'getndelim2'.
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1 /* getndelim2 - Read a line from a stream, stopping at one of 2 delimiters,
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2 with bounded memory allocation.
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3
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4 Copyright (C) 2003-2004, 2006, 2009-2013 Free Software Foundation, Inc.
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5
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6 This program is free software: you can redistribute it and/or modify
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7 it under the terms of the GNU General Public License as published by
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8 the Free Software Foundation; either version 3 of the License, or
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9 (at your option) any later version.
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10
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11 This program is distributed in the hope that it will be useful,
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12 but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 GNU General Public License for more details.
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15
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16 You should have received a copy of the GNU General Public License
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17 along with this program. If not, see <http://www.gnu.org/licenses/>. */
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18
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19 #ifndef GETNDELIM2_H
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20 #define GETNDELIM2_H 1
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21
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22 #include <stdio.h>
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23 #include <sys/types.h>
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24
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25 #define GETNLINE_NO_LIMIT ((size_t) -1)
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26
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27 /* Read into a buffer *LINEPTR returned from malloc (or NULL),
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28 pointing to *LINESIZE bytes of space. Store the input bytes
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29 starting at *LINEPTR + OFFSET, and null-terminate them. Reallocate
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30 the buffer as necessary, but if NMAX is not GETNLINE_NO_LIMIT
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31 then do not allocate more than NMAX bytes; if the line is longer
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32 than that, read and discard the extra bytes. Stop reading after
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33 the first occurrence of DELIM1 or DELIM2, whichever comes first;
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34 a delimiter equal to EOF stands for no delimiter. Read the
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35 input bytes from STREAM.
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36 Return the number of bytes read and stored at *LINEPTR + OFFSET (not
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37 including the NUL terminator), or -1 on error or EOF. */
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38 extern ssize_t getndelim2 (char **lineptr, size_t *linesize, size_t offset,
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39 size_t nmax, int delim1, int delim2,
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40 FILE *stream);
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41
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42 #endif /* GETNDELIM2_H */