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-rw-r--r--src/lib/krb5/posix/strdup.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/lib/krb5/posix/strdup.c b/src/lib/krb5/posix/strdup.c
index ed21241648..8385720904 100644
--- a/src/lib/krb5/posix/strdup.c
+++ b/src/lib/krb5/posix/strdup.c
@@ -31,6 +31,8 @@ strdup(str)
int len;
char *copy;
+ if (!str)
+ return((char *)0);
len = strlen(str) + 1;
if (!(copy = malloc((u_int)len)))
return((char *)0);