Support both slash and backslash as path component

separator on Windows when parsing argv[0].

diff --git a/src/xz/args.c b/src/xz/args.c
index c9d1dc1..93cd220 100644 (file)
--- a/src/xz/args.c
+++ b/src/xz/args.c
@@ -425,11 +425,20 @@ args_parse(args_info *args, int argc, char **argv)
        // Check how we were called.
        {
                // Remove the leading path name, if any.
+#ifdef _WIN32
+               // Some systems support both / and \ to separate path
+               // components.
+               const char *name = argv[0] + strlen(argv[0]);
+               while (argv[0] < name && name[-1] != '/' && name[-1] != '\\')
+                       --name;
+#else
+               // POSIX
                const char *name = strrchr(argv[0], '/');
                if (name == NULL)
                        name = argv[0];
                else
                        ++name;
+#endif
 
                // NOTE: It's possible that name[0] is now '\0' if argv[0]
                // is weird, but it doesn't matter here.