diff options
Diffstat (limited to 'difftool/options.c')
| -rw-r--r-- | difftool/options.c | 131 |
1 files changed, 0 insertions, 131 deletions
diff --git a/difftool/options.c b/difftool/options.c deleted file mode 100644 index b8ce7f0..0000000 --- a/difftool/options.c +++ /dev/null @@ -1,131 +0,0 @@ -/* SPDX-License-Identifier: GPL-3.0-or-later */ -/* - * sqfsdiff.c - * - * Copyright (C) 2019 David Oberhollenzer <goliath@infraroot.at> - */ -#include "sqfsdiff.h" - -static struct option long_opts[] = { - { "old", required_argument, NULL, 'a' }, - { "new", required_argument, NULL, 'b' }, - { "no-owner", no_argument, NULL, 'O' }, - { "no-permissions", no_argument, NULL, 'P' }, - { "no-contents", no_argument, NULL, 'C' }, - { "timestamps", no_argument, NULL, 'T' }, - { "inode-num", no_argument, NULL, 'I' }, - { "super", no_argument, NULL, 'S' }, - { "extract", required_argument, NULL, 'e' }, - { "help", no_argument, NULL, 'h' }, - { "version", no_argument, NULL, 'V' }, - { NULL, 0, NULL, 0 }, -}; - -static const char *short_opts = "a:b:OPCTISe:hV"; - -static const char *usagestr = -"Usage: sqfsdiff [OPTIONS...] --old,-a <first> --new,-b <second>\n" -"\n" -"Compare two squashfs images. In contrast to doing a direct diff of the\n" -"images, this actually parses the filesystems and generates a more\n" -"meaningful difference report.\n" -"\n" -"If only contents are compared, any differences in packed file layout,\n" -"ordering, compression, inode meta data and so on is ignored and the two\n" -"images are considered equal if each directory contains the same entries,\n" -"symlink with the same paths have the same targets, device nodes the same\n" -"device number and files the same size and contents.\n" -"\n" -"A report of any difference is printed to stdout. The exit status is similar\n" -"that of diff(1): 0 means equal, 1 means different, 2 means problem.\n" -"\n" -"Possible options:\n" -"\n" -" --old, -a <first> The first of the two filesystems to compare.\n" -" --new, -b <second> The second of the two filesystems to compare.\n" -"\n" -" --no-contents, -C Do not compare file contents.\n" -" --no-owner, -O Do not compare file owners.\n" -" --no-permissions, -P Do not compare permission bits.\n" -"\n" -" --timestamps, -T Compare file timestamps.\n" -" --inode-num, -I Compare inode numbers of all files.\n" -" --super, -S Also compare meta data in super blocks.\n" -"\n" -" --extract, -e <path> Extract files that differ to the specified\n" -" directory. Contents of the first filesystem\n" -" end up in a subdirectory 'old' and of the\n" -" second filesystem in a subdirectory 'new'.\n" -"\n" -" --help, -h Print help text and exit.\n" -" --version, -V Print version information and exit.\n" -"\n"; - -void process_options(sqfsdiff_t *sd, int argc, char **argv) -{ - int i; - - for (;;) { - i = getopt_long(argc, argv, short_opts, long_opts, NULL); - if (i == -1) - break; - - switch (i) { - case 'a': - sd->old_path = optarg; - break; - case 'b': - sd->new_path = optarg; - break; - case 'O': - sd->compare_flags |= COMPARE_NO_OWNER; - break; - case 'P': - sd->compare_flags |= COMPARE_NO_PERM; - break; - case 'C': - sd->compare_flags |= COMPARE_NO_CONTENTS; - break; - case 'T': - sd->compare_flags |= COMPARE_TIMESTAMP; - break; - case 'I': - sd->compare_flags |= COMPARE_INODE_NUM; - break; - case 'S': - sd->compare_super = true; - break; - case 'e': - sd->compare_flags |= COMPARE_EXTRACT_FILES; - sd->extract_dir = optarg; - break; - case 'h': - fputs(usagestr, stdout); - exit(0); - case 'V': - print_version("sqfsdiff"); - exit(0); - default: - goto fail_arg; - } - } - - if (sd->old_path == NULL) { - fputs("Missing arguments: first filesystem\n", stderr); - goto fail_arg; - } - - if (sd->new_path == NULL) { - fputs("Missing arguments: second filesystem\n", stderr); - goto fail_arg; - } - - if (optind < argc) { - fputs("Unknown extra arguments\n", stderr); - goto fail_arg; - } - return; -fail_arg: - fprintf(stderr, "Try `sqfsdiff --help' for more information.\n"); - exit(2); -} |