continue working

1 files changed, 76 insertions, 0 deletions

diff --git a/c/rvs.h b/c/rvs.h
new file mode 100644
index 0000000..1bcbacf
--- /dev/null
+++ b/c/rvs.h
@@ -0,0 +1,76 @@
+/* Copyright (C) 2009 Luke Shumaker
+   
+   This file is part of rvs.
+   
+   rvs 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.
+   
+   rvs 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 rvs; see the file COPYING.
+   If not, write to the Free Software Foundation,
+   59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+*/
+
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <errno.h>
+#include <error.h>
+
+void *xmalloc (size_t size)
+{
+	register void *value = malloc (size);
+	if (value == 0)
+		error(EXIT_FAILURE,0,"virtual memory exhausted");
+	return value;
+}
+
+void *xrealloc (void *ptr, size_t size)
+{
+	register void *value = realloc (ptr, size);
+	if (value == 0)
+		error(EXIT_FAILURE,0,"virtual memory exhausted");
+	return value;
+}
+
+FILE *xfopen (const char *filename, const char *opentype)
+{
+	FILE *file = fopen(filename,opentype);
+	/* fopen gives NULL on failure */
+	if ( file == NULL ) {
+		error(EXIT_FAILURE,errno,"%s",filename);
+	}
+	
+	return file;
+}
+
+DIR *xopendir (const char *dirname)
+{
+	DIR *dir = opendir (dirname);
+	if (dir == NULL) {
+		error(EXIT_FAILURE,errno,"%s/",dirname);
+	}
+	
+	return dir;
+}
+
+void stradds(size_t *size, char **dest, char *str)
+{
+	if (*size > ( strlen(*dest) + strlen(str) )) {
+		strcat(*dest, str);
+	} else {
+		*size = strlen(*dest) + strlen(str) + 1;
+		
+		char *string;
+		string = (char *) xrealloc (*dest, *size);
+		strcat(string, str);
+	}
+}
+