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authorRafael G. Martins <rafael@rafaelmartins.eng.br>2019-09-09 20:44:18 +0200
committerRafael G. Martins <rafael@rafaelmartins.eng.br>2019-09-09 20:44:25 +0200
commita576156e5bf9de147efe2c76af1ee29f5efd773e (patch)
treea72f60f78cd4db77ce5d10d084b6d1c8e1e0fe27 /src/common/utils.c
parentc9df78f02b66513c6e831d81c3240a715fee7e70 (diff)
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common: prevent stdarg errors when format is NULL
Diffstat (limited to 'src/common/utils.c')
-rw-r--r--src/common/utils.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/src/common/utils.c b/src/common/utils.c
index 692d1ce..f686222 100644
--- a/src/common/utils.c
+++ b/src/common/utils.c
@@ -138,6 +138,8 @@ bc_strndup(const char *s, size_t n)
char*
bc_strdup_vprintf(const char *format, va_list ap)
{
+ if (format == NULL)
+ return NULL;
va_list ap2;
va_copy(ap2, ap);
int l = vsnprintf(NULL, 0, format, ap2);
@@ -159,6 +161,8 @@ bc_strdup_vprintf(const char *format, va_list ap)
char*
bc_strdup_printf(const char *format, ...)
{
+ if (format == NULL)
+ return NULL;
va_list ap;
va_start(ap, format);
char *tmp = bc_strdup_vprintf(format, ap);
@@ -464,6 +468,8 @@ bc_string_append_printf(bc_string_t *str, const char *format, ...)
{
if (str == NULL)
return NULL;
+ if (format == NULL)
+ return str;
va_list ap;
va_start(ap, format);
char *tmp = bc_strdup_vprintf(format, ap);