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authorSimon Josefsson <simon@josefsson.org>2005-08-12 09:57:27 +0000
committerSimon Josefsson <simon@josefsson.org>2005-08-12 09:57:27 +0000
commit3132c8be52a21a4dce04a5ef33a2c473093655c3 (patch)
tree8b1fa9442161e0efebbd600580cec6eb4f533026 /gl/getdelim.c
parent900cfee3472370e2113418b5057af38b06820b66 (diff)
downloadgnutls-3132c8be52a21a4dce04a5ef33a2c473093655c3.tar.gz
Update.
Diffstat (limited to 'gl/getdelim.c')
-rw-r--r--gl/getdelim.c116
1 files changed, 116 insertions, 0 deletions
diff --git a/gl/getdelim.c b/gl/getdelim.c
new file mode 100644
index 0000000000..02bb9a4976
--- /dev/null
+++ b/gl/getdelim.c
@@ -0,0 +1,116 @@
+/* getdelim.c --- Implementation of replacement getdelim function.
+ Copyright (C) 1994, 1996, 1997, 1998, 2001, 2003, 2005 Free
+ Software Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or
+ modify it under the terms of the GNU General Public License as
+ published by the Free Software Foundation; either version 2, or (at
+ your option) any later version.
+
+ This program is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ 02110-1301, USA. */
+
+/* Ported from glibc by Simon Josefsson. */
+
+#if HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <stdlib.h>
+#include <errno.h>
+
+#include "getdelim.h"
+
+#if !HAVE_FLOCKFILE
+# undef flockfile
+# define flockfile(x) ((void) 0)
+#endif
+#if !HAVE_FUNLOCKFILE
+# undef funlockfile
+# define funlockfile(x) ((void) 0)
+#endif
+
+/* Read up to (and including) a DELIMITER from FP into *LINEPTR (and
+ NUL-terminate it). *LINEPTR is a pointer returned from malloc (or
+ NULL), pointing to *N characters of space. It is realloc'ed as
+ necessary. Returns the number of characters read (not including
+ the null terminator), or -1 on error or EOF. */
+
+ssize_t
+getdelim (char **lineptr, size_t *n, int delimiter, FILE *fp)
+{
+ int result;
+ ssize_t cur_len = 0;
+ ssize_t len;
+
+ if (lineptr == NULL || n == NULL || fp == NULL)
+ {
+ errno = EINVAL;
+ return -1;
+ }
+
+ flockfile (fp);
+
+ if (*lineptr == NULL || *n == 0)
+ {
+ *n = 120;
+ *lineptr = (char *) malloc (*n);
+ if (*lineptr == NULL)
+ {
+ result = -1;
+ goto unlock_return;
+ }
+ }
+
+ for (;;)
+ {
+ char *t;
+ int i;
+
+ i = getc (fp);
+ if (i == EOF)
+ break;
+
+ /* Make enough space for len+1 (for final NUL) bytes. */
+ if (cur_len + 1 >= *n)
+ {
+ size_t needed = 2 * (cur_len + 1) + 1; /* Be generous. */
+ char *new_lineptr;
+
+ if (needed < cur_len)
+ {
+ result = -1;
+ goto unlock_return;
+ }
+
+ new_lineptr = (char *) realloc (*lineptr, needed);
+ if (new_lineptr == NULL)
+ {
+ result = -1;
+ goto unlock_return;
+ }
+
+ *lineptr = new_lineptr;
+ *n = needed;
+ }
+
+ (*lineptr)[cur_len] = i;
+ cur_len++;
+
+ if (i == delimiter)
+ break;
+ }
+ (*lineptr)[cur_len] = '\0';
+ result = cur_len;
+
+ unlock_return:
+ funlockfile (fp);
+ return result;
+}