fix 'make test' for HP NonStop

diff --git a/abspath.c b/abspath.c
index 37287f86c18f8b532feb38b5c70541c8cb3d3a44..05f2d7934878a832f5a2efdf4222c16223050853 100644 (file)
--- a/abspath.c
+++ b/abspath.c
@@ -35,6 +35,9 @@ const char *real_path(const char *path)
        if (path == buf || path == next_buf)
                return path;
 
+       if (!*path)
+               die("The empty string is not a valid path");
+
        if (strlcpy(buf, path, PATH_MAX) >= PATH_MAX)
                die ("Too long path: %.*s", 60, path);
 
@@ -42,8 +45,8 @@ const char *real_path(const char *path)
                if (!is_directory(buf)) {
                        char *last_slash = find_last_dir_sep(buf);
                        if (last_slash) {
-                               *last_slash = '\0';
                                last_elem = xstrdup(last_slash + 1);
+                               last_slash[1] = '\0';
                        } else {
                                last_elem = xstrdup(buf);
                                *buf = '\0';
@@ -123,7 +126,9 @@ const char *absolute_path(const char *path)
 {
        static char buf[PATH_MAX + 1];
 
-       if (is_absolute_path(path)) {
+       if (!*path) {
+               die("The empty string is not a valid path");
+       } else if (is_absolute_path(path)) {
                if (strlcpy(buf, path, PATH_MAX) >= PATH_MAX)
                        die("Too long path: %.*s", 60, path);
        } else {
@@ -139,3 +144,31 @@ const char *absolute_path(const char *path)
        }
        return buf;
 }
+
+/*
+ * Unlike prefix_path, this should be used if the named file does
+ * not have to interact with index entry; i.e. name of a random file
+ * on the filesystem.
+ */
+const char *prefix_filename(const char *pfx, int pfx_len, const char *arg)
+{
+       static char path[PATH_MAX];
+#ifndef WIN32
+       if (!pfx_len || is_absolute_path(arg))
+               return arg;
+       memcpy(path, pfx, pfx_len);
+       strcpy(path + pfx_len, arg);
+#else
+       char *p;
+       /* don't add prefix to absolute paths, but still replace '\' by '/' */
+       if (is_absolute_path(arg))
+               pfx_len = 0;
+       else if (pfx_len)
+               memcpy(path, pfx, pfx_len);
+       strcpy(path + pfx_len, arg);
+       for (p = path + pfx_len; *p; p++)
+               if (*p == '\\')
+                       *p = '/';
+#endif
+       return path;
+}