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/*
* test_extent.c --- tester for the extent abstraction
*
* Copyright (C) 1997, 1998 by Theodore Ts'o and
* PowerQuest, Inc.
*
* Copyright (C) 1999, 2000 by Theosore Ts'o
*
* %Begin-Header%
* This file may be redistributed under the terms of the GNU Public
* License.
* %End-Header%
*/
#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;
__u32 num1, num2;
int 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: %u%s\n", 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, "# %u -> %u (%d)\n",
num1, num2, size);
}
} else
fputs("# Syntax error\n", out);
}
}
#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);
}
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