libbb: additional support for backslashes in paths

2 files changed, 22 insertions, 1 deletions

diff --git a/include/mingw.h b/include/mingw.h
index 6d494b7ef..196356288 100644
--- a/include/mingw.h
+++ b/include/mingw.h
@@ -459,7 +459,7 @@ pid_t mingw_spawn_1(int mode, const char *cmd, const char *const *argv, const ch
 
 const char * next_path_sep(const char *path);
 #define has_dos_drive_prefix(path) (isalpha(*(path)) && (path)[1] == ':')
-#define is_absolute_path(path) ((path)[0] == '/' || has_dos_drive_prefix(path))
+#define is_absolute_path(path) ((path)[0] == '/' || (path)[0] == '\\' || has_dos_drive_prefix(path))
 
 /*
  * helpers
diff --git a/libbb/get_last_path_component.c b/libbb/get_last_path_component.c
index db4be68ad..15eb85ca8 100644
--- a/libbb/get_last_path_component.c
+++ b/libbb/get_last_path_component.c
@@ -31,8 +31,18 @@ char* FAST_FUNC bb_get_last_path_component_nostrip(const char *path)
 {
         char *slash = strrchr(path, '/');
 
+#if ENABLE_PLATFORM_MINGW32
+        const char *start = has_dos_drive_prefix(path) ? path+2 : path;
+
+        if (!slash)
+                slash = strrchr(path, '\\');
+
+        if (!slash || (slash == start && !slash[1]))
+                return (char*)path;
+#else
         if (!slash || (slash == path && !slash[1]))
                 return (char*)path;
+#endif
 
         return slash + 1;
 }
@@ -47,9 +57,20 @@ char* FAST_FUNC bb_get_last_path_component_strip(char *path)
 {
         char *slash = last_char_is(path, '/');
 
+#if ENABLE_PLATFORM_MINGW32
+        const char *start = has_dos_drive_prefix(path) ? path+2 : path;
+
+        if (!slash)
+                slash = last_char_is(path, '\\');
+
+        if (slash)
+                while ((*slash == '/' || *slash == '\\') && slash != start)
+                        *slash-- = '\0';
+#else
         if (slash)
                 while (*slash == '/' && slash != path)
                         *slash-- = '\0';
+#endif
 
         return bb_get_last_path_component_nostrip(path);
 }