/* getdelim.c --- Implementation of replacement getdelim function.
- Copyright (C) 1994, 1996, 1997, 1998, 2001, 2003, 2005, 2006, 2007,
- 2008, 2009 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 3, 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. */
+ * Copyright (C) 1994, 1996, 1997, 1998, 2001, 2003, 2005, 2006, 2007,
+ * 2008, 2009 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 3, 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 USE_UNLOCKED_IO
# include "unlocked-io.h"
-# define getc_maybe_unlocked(fp) getc(fp)
-#elif !HAVE_FLOCKFILE || !HAVE_FUNLOCKFILE || !HAVE_DECL_GETC_UNLOCKED
+# define getc_maybe_unlocked(fp) getc (fp)
+#elif ! HAVE_FLOCKFILE || ! HAVE_FUNLOCKFILE || ! HAVE_DECL_GETC_UNLOCKED
# undef flockfile
# undef funlockfile
# define flockfile(x) ((void) 0)
# define funlockfile(x) ((void) 0)
-# define getc_maybe_unlocked(fp) getc(fp)
+# define getc_maybe_unlocked(fp) getc (fp)
#else
-# define getc_maybe_unlocked(fp) getc_unlocked(fp)
+# define getc_maybe_unlocked(fp) getc_unlocked (fp)
#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. */
+ * 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)
{
- ssize_t result = -1;
- size_t cur_len = 0;
+ ssize_t result = -1;
+ size_t cur_len = 0;
- if (lineptr == NULL || n == NULL || fp == NULL)
- {
- errno = EINVAL;
- return -1;
+ if (lineptr == NULL || n == NULL || fp == NULL) {
+ errno = EINVAL;
+ return -1;
}
- flockfile (fp);
-
- if (*lineptr == NULL || *n == 0)
- {
- char *new_lineptr;
- *n = 120;
- new_lineptr = (char *) realloc (*lineptr, *n);
- if (new_lineptr == NULL)
- {
- result = -1;
- goto unlock_return;
+ flockfile (fp);
+
+ if (*lineptr == NULL || *n == 0) {
+ char *new_lineptr;
+ *n = 120;
+ new_lineptr = (char *) realloc (*lineptr, *n);
+ if (new_lineptr == NULL) {
+ result = -1;
+ goto unlock_return;
}
- *lineptr = new_lineptr;
+ *lineptr = new_lineptr;
}
- for (;;)
- {
- int i;
+ for (;;) {
+ int i;
- i = getc_maybe_unlocked (fp);
- if (i == EOF)
- {
- result = -1;
- break;
+ i = getc_maybe_unlocked (fp);
+ if (i == EOF) {
+ result = -1;
+ break;
}
- /* Make enough space for len+1 (for final NUL) bytes. */
- if (cur_len + 1 >= *n)
- {
- size_t needed_max =
- SSIZE_MAX < SIZE_MAX ? (size_t) SSIZE_MAX + 1 : SIZE_MAX;
- size_t needed = 2 * *n + 1; /* Be generous. */
- char *new_lineptr;
-
- if (needed_max < needed)
- needed = needed_max;
- if (cur_len + 1 >= needed)
- {
- result = -1;
- errno = EOVERFLOW;
- goto unlock_return;
+ /* Make enough space for len+1 (for final NUL) bytes. */
+ if (cur_len + 1 >= *n) {
+ size_t needed_max =
+ SSIZE_MAX < SIZE_MAX ? (size_t) SSIZE_MAX + 1 : SIZE_MAX;
+ size_t needed = 2 * *n + 1; /* Be generous. */
+ char *new_lineptr;
+
+ if (needed_max < needed)
+ needed = needed_max;
+ if (cur_len + 1 >= needed) {
+ result = -1;
+ errno = EOVERFLOW;
+ goto unlock_return;
}
- new_lineptr = (char *) realloc (*lineptr, needed);
- if (new_lineptr == NULL)
- {
- 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 = new_lineptr;
+ *n = needed;
}
- (*lineptr)[cur_len] = i;
- cur_len++;
+ (*lineptr)[cur_len] = i;
+ cur_len++;
- if (i == delimiter)
- break;
+ if (i == delimiter)
+ break;
}
- (*lineptr)[cur_len] = '\0';
- result = cur_len ? (ssize_t) cur_len : result;
+ (*lineptr)[cur_len] = '\0';
+ result = cur_len ? (ssize_t) cur_len : result;
- unlock_return:
- funlockfile (fp); /* doesn't set errno */
+ unlock_return:
+ funlockfile (fp); /* doesn't set errno */
- return result;
+ return result;
}
projects / notmuch / blobdiff