X-Git-Url: https://vcs.fsf.org/?p=exim.git;a=blobdiff_plain;f=src%2Fsrc%2Fos.c;h=ca24e8dd27e47d42df5140e55de39cd0a072c6d8;hp=47af038f78216beaf73e6dcc1935dd28695dec21;hb=4a5ee04fd186cb7d86a4f70821dacc55f8cce98d;hpb=79de4f370f306869887e1714ff4ecef5bfc93fa5

diff --git a/src/src/os.c b/src/src/os.c
index 47af038f7..ca24e8dd2 100644
--- a/src/src/os.c
+++ b/src/src/os.c
@@ -879,7 +879,7 @@ char * b = (char *)buffer;
 if (!size) size = PATH_MAX;
 if (!b && !(b = malloc(size))) return NULL;
 if (!(b = getcwd(b, size))) return NULL;
-return realloc(b, strlen(b) + 1);
+return buffer ? buffer : realloc(b, strlen(b) + 1);
 }
 #endif