| /* |
| * 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); |
| } |
| } |
| |
| int main(int argc, char **argv) |
| { |
| do_test(stdin, stdout); |
| exit(0); |
| } |