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-rw-r--r--src/xz/args.c22
1 files changed, 13 insertions, 9 deletions
diff --git a/src/xz/args.c b/src/xz/args.c
index 97b22448..8d5d33c2 100644
--- a/src/xz/args.c
+++ b/src/xz/args.c
@@ -465,19 +465,23 @@ args_parse(args_info *args, int argc, char **argv)
// NOTE: It's possible that name[0] is now '\0' if argv[0]
// is weird, but it doesn't matter here.
- // If the command name contains "lz",
- // it implies --format=lzma.
- if (strstr(name, "lz") != NULL)
+ // Look for full command names instead of substrings like
+ // "un", "cat", and "lz" to reduce possibility of false
+ // positives when the programs have been renamed.
+ if (strstr(name, "xzcat") != NULL) {
+ opt_mode = MODE_DECOMPRESS;
+ opt_stdout = true;
+ } else if (strstr(name, "unxz") != NULL) {
+ opt_mode = MODE_DECOMPRESS;
+ } else if (strstr(name, "lzcat") != NULL) {
opt_format = FORMAT_LZMA;
-
- // Operation mode
- if (strstr(name, "cat") != NULL) {
- // Imply --decompress --stdout
opt_mode = MODE_DECOMPRESS;
opt_stdout = true;
- } else if (strstr(name, "un") != NULL) {
- // Imply --decompress
+ } else if (strstr(name, "unlzma") != NULL) {
+ opt_format = FORMAT_LZMA;
opt_mode = MODE_DECOMPRESS;
+ } else if (strstr(name, "lzma") != NULL) {
+ opt_format = FORMAT_LZMA;
}
}