diff options
| -rw-r--r-- | pjlib/src/pj/compat/string_compat.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/pjlib/src/pj/compat/string_compat.c b/pjlib/src/pj/compat/string_compat.c index 28f13123..d87bb967 100644 --- a/pjlib/src/pj/compat/string_compat.c +++ b/pjlib/src/pj/compat/string_compat.c @@ -19,6 +19,8 @@ #include <pj/types.h> #include <pj/compat/string.h> #include <pj/ctype.h> +#include <pj/assert.h> + #if defined(PJ_HAS_STRING_H) && PJ_HAS_STRING_H != 0 /* Nothing to do */ @@ -64,8 +66,16 @@ PJ_DEF(int) snprintf(char *s1, pj_size_t len, const char *s2, ...) PJ_DEF(int) vsnprintf(char *s1, pj_size_t len, const char *s2, va_list arg) { - PJ_UNUSED_ARG(len); - return vsprintf(s1,s2,arg); +#define MARK_CHAR ((char)255) + int rc; + + s1[len-1] = MARK_CHAR; + + rc = vsprintf(s1,s2,arg); + + pj_assert(s1[len-1] == MARK_CHAR || s1[len-1] == '\0'); + + return rc; } #endif |