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-rw-r--r--libbb/safe_strncpy.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/libbb/safe_strncpy.c b/libbb/safe_strncpy.c
index add92ac..42bc16e 100644
--- a/libbb/safe_strncpy.c
+++ b/libbb/safe_strncpy.c
@@ -15,6 +15,7 @@
/* Like strncpy but make sure the resulting string is always 0 terminated. */
char * safe_strncpy(char *dst, const char *src, size_t size)
{
- dst[size-1] = '\0';
- return strncpy(dst, src, size-1);
+ if (!size) return dst;
+ dst[--size] = '\0';
+ return strncpy(dst, src, size);
}