env: Ensure that env_strncpy() always produces NULL-terminated string
@@ -618,7 +618,8 @@ static inline void env_sort(void *base, size_t num, size_t size,
#define env_strnlen(s, smax) strnlen(s, smax)
#define env_strncmp strncmp
#define env_strncpy(dest, dmax, src, slen) ({ \
- strncpy(dest, src, min(dmax, slen)); \
+ strncpy(dest, src, min(dmax - 1, slen)); \
+ dest[dmax - 1] = '\0'; \
0; \
})
