win32: execable.c: minor

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>

1 files changed, 2 insertions, 3 deletions

diff --git a/libbb/execable.c b/libbb/execable.c
index b2ec16713..96ce9bfb8 100644
--- a/libbb/execable.c
+++ b/libbb/execable.c
@@ -18,7 +18,7 @@ int FAST_FUNC execable_file(const char *name)
         struct stat s;
         if (ENABLE_PLATFORM_MINGW32) {
                 int len = strlen(name);
-                return len >= 4 && !strcasecmp(name+len-4, ".exe") &&
+                return len > 4 && !strcasecmp(name+len-4, ".exe") &&
                         !stat(name, &s) && S_ISREG(s.st_mode);
         }
         return (!access(name, X_OK) && !stat(name, &s) && S_ISREG(s.st_mode));
@@ -59,8 +59,7 @@ char* FAST_FUNC find_execable(const char *filename, char **PATHp)
                                 else {
                                         char *np = xmalloc(len+4+1);
                                         memcpy(np, p, len);
-                                        memcpy(np+len, ".exe", 4);
-                                        np[len+4] = '0';
+                                        memcpy(np+len, ".exe", 5);
                                         if (execable_file(np)) {
                                                 *PATHp = n;
                                                 return np;