msvc: opendir: allocate enough memory

The defintion of DIR expects the allocating function to extend
dd_name by over-allocating. This is not currently done in our
implementation of opendir. Fix this.

Signed-off-by: Erik Faye-Lund <kusmabite@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/compat/msvc.c b/compat/msvc.c
index d6096e4bd96ddb82da7eb653cbde0e73172e0391..c195365d2cf77348b0646f210adb984ae75d07bc 100644 (file)
--- a/compat/msvc.c
+++ b/compat/msvc.c
@@ -5,15 +5,14 @@
 
 DIR *opendir(const char *name)
 {
-       int len;
+       int len = strlen(name);
        DIR *p;
-       p = malloc(sizeof(DIR));
+       p = malloc(sizeof(DIR) + len + 2);
        if (!p)
                return NULL;
 
-       memset(p, 0, sizeof(DIR));
-       strncpy(p->dd_name, name, PATH_MAX);
-       len = strlen(p->dd_name);
+       memset(p, 0, sizeof(DIR) + len + 2);
+       strcpy(p->dd_name, name);
        p->dd_name[len] = '/';
        p->dd_name[len+1] = '*';