1 files changed, 129 insertions, 0 deletions
diff --git a/resize/test_extent.c b/resize/test_extent.c
new file mode 100644
index 0000000..11ad132
--- /dev/null
+++ b/resize/test_extent.c
@@ -0,0 +1,129 @@
+/*
+ * test_extent.c --- tester for the extent abstraction
+ *
+ * Copyright (C) 1997, 1998 by Theodore Ts'o and
+ * 	PowerQuest, Inc.
+ *
+ * Copyright (C) 1999, 2000 by Theodore Ts'o
+ *
+ * %Begin-Header%
+ * This file may be redistributed under the terms of the GNU Public
+ * License.
+ * %End-Header%
+ */
+
+#include "config.h"
+#include "resize2fs.h"
+
+void do_test(FILE *in, FILE *out);
+
+void do_test(FILE *in, FILE *out)
+{
+	char		buf[128];
+	char		*cp, *cmd, *arg1, *arg2;
+	__u64		num1, num2;
+	__u64		size;
+	errcode_t	retval;
+	ext2_extent	extent = 0;
+	const char	*no_table = "# No extent table\n";
+
+	while (!feof(in)) {
+		if (!fgets(buf, sizeof(buf), in))
+			break;
+		/*
+		 * Ignore comments
+		 */
+		if (buf[0] =='#')
+			continue;
+
+		/*
+		 * Echo command
+		 */
+		fputs(buf, out);
+
+		cp = strchr(buf, '\n');
+		if (cp)
+			*cp = '\0';
+
+		/*
+		 * Parse command line; simple, at most two arguments
+		 */
+		cmd = buf;
+		num1 = num2 = 0;
+		arg1 = arg2 = 0;
+		cp = strchr(buf, ' ');
+		if (cp) {
+			*cp++ = '\0';
+			arg1 = cp;
+			num1 = strtoul(arg1, 0, 0);
+
+			cp = strchr(cp, ' ');
+		}
+		if (cp) {
+			*cp++ = '\0';
+			arg2 = cp;
+			num2 = strtoul(arg2, 0, 0);
+		}
+
+		if (!strcmp(cmd, "create")) {
+			retval = ext2fs_create_extent_table(&extent, num1);
+			if (retval) {
+			handle_error:
+				fprintf(out, "# Error: %s\n",
+					error_message(retval));
+				continue;
+			}
+			continue;
+		}
+		if (!extent) {
+			fputs(no_table, out);
+			continue;
+		}
+		if (!strcmp(cmd, "free")) {
+			ext2fs_free_extent_table(extent);
+			extent = 0;
+		} else if (!strcmp(cmd, "add")) {
+			retval = ext2fs_add_extent_entry(extent, num1, num2);
+			if (retval)
+				goto handle_error;
+		} else if (!strcmp(cmd, "lookup")) {
+			num2 = ext2fs_extent_translate(extent, num1);
+			fprintf(out, "# Answer: %llu%s\n",
+				(unsigned long long) num2,
+				num2 ? "" : " (not found)");
+		} else if (!strcmp(cmd, "dump")) {
+			ext2fs_extent_dump(extent, out);
+		} else if (!strcmp(cmd, "iter_test")) {
+			retval = ext2fs_iterate_extent(extent, 0, 0, 0);
+			if (retval)
+				goto handle_error;
+			while (1) {
+				retval = ext2fs_iterate_extent(extent,
+					       &num1, &num2, &size);
+				if (retval)
+					goto handle_error;
+				if (!size)
+					break;
+				fprintf(out, "# %llu -> %llu (%llu)\n",
+					(unsigned long long) num1,
+					(unsigned long long) num2,
+					(unsigned long long) size);
+			}
+		} else
+			fputs("# Syntax error\n", out);
+	}
+	if (extent)
+		ext2fs_free_extent_table(extent);
+}
+
+#ifdef __GNUC__
+#define ATTR(x) __attribute__(x)
+#else
+#define ATTR(x)
+#endif
+
+int main(int argc ATTR((unused)), char **argv ATTR((unused)))
+{
+	do_test(stdin, stdout);
+	exit(0);
+}