1 files changed, 29 insertions, 0 deletions
diff --git a/package/network/services/hostapd/patches/700-Add-os_snprintf_error-helper.patch b/package/network/services/hostapd/patches/700-Add-os_snprintf_error-helper.patch
new file mode 100644
index 0000000000..51ad1c4d70
--- /dev/null
+++ b/package/network/services/hostapd/patches/700-Add-os_snprintf_error-helper.patch
@@ -0,0 +1,29 @@
+Add os_snprintf_error() helper
+
+This can be used to check os_snprintf() return value more consistently.
+
+Signed-off-by: Jouni Malinen <j@w1.fi>
+---
+ src/utils/os.h | 6 ++++++
+ 1 file changed, 6 insertions(+)
+
+diff --git a/src/utils/os.h b/src/utils/os.h
+index b9247d8..77250d6 100644
+--- a/src/utils/os.h
++++ b/src/utils/os.h
+@@ -549,6 +549,12 @@ char * os_strdup(const char *s);
+ #endif /* OS_NO_C_LIB_DEFINES */
+ 
+ 
++static inline int os_snprintf_error(size_t size, int res)
++{
++	return res < 0 || (unsigned int) res >= size;
++}
++
++
+ static inline void * os_realloc_array(void *ptr, size_t nmemb, size_t size)
+ {
+ 	if (size && nmemb > (~(size_t) 0) / size)
+-- 
+2.1.3
+