summaryrefslogtreecommitdiff
path: root/lib/libalpm/util.h
diff options
context:
space:
mode:
Diffstat (limited to 'lib/libalpm/util.h')
-rw-r--r--lib/libalpm/util.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/libalpm/util.h b/lib/libalpm/util.h
index 3ffe6328..8db26350 100644
--- a/lib/libalpm/util.h
+++ b/lib/libalpm/util.h
@@ -43,7 +43,8 @@
#define MALLOC(p, s, action) do { p = calloc(1, s); if(p == NULL) { ALLOC_FAIL(s); action; } } while(0)
#define CALLOC(p, l, s, action) do { p = calloc(l, s); if(p == NULL) { ALLOC_FAIL(s); action; } } while(0)
-#define STRDUP(r, s, action) do { r = strdup(s); if(r == NULL) { ALLOC_FAIL(strlen(s)); action; } } while(0)
+/* This strdup macro is NULL safe- copying NULL will yield NULL */
+#define STRDUP(r, s, action) do { if(s != NULL) { r = strdup(s); if(r == NULL) { ALLOC_FAIL(strlen(s)); action; } } else { r = NULL; } } while(0)
#define FREE(p) do { if(p) { free(p); p = NULL; } } while(0)