This is used in GnuTLS, and I need it in Shishi now, so I thought that
it should be a module. What do you think?
Possibly, there should be a xstrfile too, that uses xrealloc...
Thanks!
Index: modules/strfile
===================================================================
RCS file: modules/strfile
diff -N modules/strfile
--- /dev/null 1 Jan 1970 00:00:00 -0000
+++ modules/strfile 27 May 2006 10:11:38 -0000
@@ -0,0 +1,23 @@
+Description:
+strfile() function: read the contents of a file into a string
+
+Files:
+lib/strfile.h
+lib/strfile.c
+m4/strfile.m4
+
+Depends-on:
+
+configure.ac:
+gl_FUNC_STRFILE
+
+Makefile.am:
+
+Include:
+"strfile.h"
+
+License:
+GPL
+
+Maintainer:
+Simon Josefsson
Index: m4/strfile.m4
===================================================================
RCS file: m4/strfile.m4
diff -N m4/strfile.m4
--- /dev/null 1 Jan 1970 00:00:00 -0000
+++ m4/strfile.m4 27 May 2006 10:11:38 -0000
@@ -0,0 +1,14 @@
+# strfile.m4 serial 1
+dnl Copyright (C) 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+AC_DEFUN([gl_FUNC_STRFILE],
+[
+ AC_LIBSOURCES([strfile.c, strfile.h])
+ gl_PREREQ_STRFILE
+])
+
+# Prerequisites of lib/strfile.c.
+AC_DEFUN([gl_PREREQ_STRFILE], [:])
Index: lib/strfile.h
===================================================================
RCS file: lib/strfile.h
diff -N lib/strfile.h
--- /dev/null 1 Jan 1970 00:00:00 -0000
+++ lib/strfile.h 27 May 2006 10:11:38 -0000
@@ -0,0 +1,26 @@
+/* strfile.h -- read file contents into a string
+ Copyright (C) 2006 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. */
+
+#ifndef STRFILE_H
+#define STRFILE_H
+
+/* Get size_t. */
+#include <stddef.h>
+
+extern char *strfile (const char *filename, size_t *length);
+
+#endif /* STRFILE_H */
Index: lib/strfile.c
===================================================================
RCS file: lib/strfile.c
diff -N lib/strfile.c
--- /dev/null 1 Jan 1970 00:00:00 -0000
+++ lib/strfile.c 27 May 2006 10:11:38 -0000
@@ -0,0 +1,69 @@
+/* strfile.c -- read file contents into a string
+ Copyright (C) 2006 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. */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include "strfile.h"
+
+#include <stdio.h>
+
+/* Open and read the contents of FILENAME's, and return a newly
+ allocated string with the content, and set LENGTH to the length of
+ the string. On errors, return NULL and sets errno. */
+char *
+strfile (const char *filename, size_t *length)
+{
+ FILE *fh;
+ char *out = NULL;
+ size_t pos = 0;
+
+ fh = fopen (filename, "r");
+ if (!fh)
+ return NULL;
+
+ do {
+ size_t nread;
+ char *tmp;
+
+ tmp = realloc (out, pos + BUFSIZ);
+ if (!tmp)
+ {
+ int save_errno = errno;
+ free (out);
+ errno = save_errno;
+ return NULL;
+ }
+ out = tmp;
+
+ nread = fread (out + pos, 1, BUFSIZ, fh);
+ pos += nread;
+ } while (!feof (fh) && !ferror (fh));
+
+ if (!(feof (fh) && fclose (fh)))
+ {
+ int save_errno = errno;
+ free (out);
+ errno = save_errno;
+ return NULL;
+ }
+
+ *length = pos;
+
+ return out;
+}
