1 files changed, 128 insertions, 0 deletions
diff --git a/tests/genfile.c b/tests/genfile.c
new file mode 100644
index 0000000..26b046f
--- /dev/null
+++ b/tests/genfile.c
@@ -0,0 +1,128 @@
+/* This file is part of Idest.
+   Copyright (C) 2009-2011 Sergey Poznyakoff
+ 
+   Idest 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.
+ 
+   Idest 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 Idest.  If not, see <http://www.gnu.org/licenses/>. */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+#include <stdlib.h>
+#include <stdio.h>
+#include <unistd.h>
+#ifdef HAVE_GETOPT_H
+# include <getopt.h>
+#endif
+
+static void
+copyfile(FILE *file, const char *name)
+{
+	int c;
+	FILE *in = fopen(name, "r");
+	if (!in) { 
+		perror(name);
+		exit(1);
+	}
+	while ((c = fgetc(in)) != EOF)
+		fputc(c, file);
+	fclose(in);
+}
+
+int
+main(int argc, char **argv)
+{
+	char *suf;
+	unsigned int length, i, c;
+	char *filename = NULL, *suffix = NULL, *prefix = NULL;
+	FILE *fp;
+	
+	while ((c = getopt(argc, argv, "hf:p:s:")) != EOF) {
+		switch (c) {
+		case 'f':
+			filename = optarg;
+			break;
+
+		case 'p':
+			prefix = optarg;
+			break;
+
+		case 's':
+			suffix = optarg;
+			break;
+
+		case 'h':
+			fprintf(stdout,
+				"usage: %s [-f FILE] [-p PREFIX]"
+				" [-s SUFFIX] SIZE\n", argv[0]);
+			exit(0);
+
+		default:
+			exit(1);
+		}
+	}
+
+	if (optind + 1 != argc) {
+		fprintf(stderr, "%s: invalid usage\n", argv[0]);
+		exit(1);
+	}
+
+	length = strtoul(argv[optind], &suf, 10);
+	if (suf[0] && suf[1]) {
+		fprintf(stderr, "%s: unknown size suffix: %s\n", argv[0], suf);
+		exit(1);
+	}
+	
+	switch (*suf) {
+	case 0:
+		break;
+	case 'g':
+	case 'G':
+		length *= 1024;
+	case 'm':
+	case 'M':
+		length *= 1024;
+	case 'k':
+	case 'K':
+		length *= 1024;
+		break;
+	default:
+		fprintf(stderr, "%s: unknown size suffix: %s\n", argv[0], suf);
+		exit(1);
+	}
+
+	if (filename) {
+		fp = fopen(filename, "w");
+		if (!fp) {
+			perror(filename);
+			exit(1);
+		}
+	} else
+		fp = stdout;
+
+	if (prefix)
+		copyfile(fp, prefix);
+	
+	for (i = 0; i < length; i++)
+		fputc (i & 255, fp);
+
+	if (suffix)
+		copyfile(fp, suffix);
+	
+	if (ferror(fp)) {
+		fprintf(stderr, "%s: write error", argv[0]);
+		exit(1);
+	}
+	fclose(fp);
+	exit(0);
+}
+