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/* getdelim.c --- Implementation of replacement getdelim function.
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Copyright (C) 1994, 1996, 1997, 1998, 2001, 2003, 2005, 2006 Free
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Software Foundation, Inc.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2, or (at
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your option) any later version.
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This program is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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/* Ported from glibc by Simon Josefsson. */
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# define SIZE_MAX ((size_t) -1)
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# define SSIZE_MAX ((ssize_t) (SIZE_MAX / 2))
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# define flockfile(x) ((void) 0)
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# define funlockfile(x) ((void) 0)
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/* Read up to (and including) a DELIMITER from FP into *LINEPTR (and
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NUL-terminate it). *LINEPTR is a pointer returned from malloc (or
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NULL), pointing to *N characters of space. It is realloc'ed as
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necessary. Returns the number of characters read (not including
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the null terminator), or -1 on error or EOF. */
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getdelim (char **lineptr, size_t *n, int delimiter, FILE *fp)
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if (lineptr == NULL || n == NULL || fp == NULL)
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if (*lineptr == NULL || *n == 0)
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*lineptr = (char *) malloc (*n);
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/* Make enough space for len+1 (for final NUL) bytes. */
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if (cur_len + 1 >= *n)
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SSIZE_MAX < SIZE_MAX ? (size_t) SSIZE_MAX + 1 : SIZE_MAX;
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size_t needed = 2 * *n + 1; /* Be generous. */
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if (needed_max < needed)
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if (cur_len + 1 >= needed)
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new_lineptr = (char *) realloc (*lineptr, needed);
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if (new_lineptr == NULL)
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*lineptr = new_lineptr;
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(*lineptr)[cur_len] = i;
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(*lineptr)[cur_len] = '\0';
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result = cur_len ? cur_len : result;