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path: root/apps/plugins/lua/strncat.c
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-rw-r--r--apps/plugins/lua/strncat.c21
1 files changed, 21 insertions, 0 deletions
diff --git a/apps/plugins/lua/strncat.c b/apps/plugins/lua/strncat.c
new file mode 100644
index 0000000..5b15ff0
--- /dev/null
+++ b/apps/plugins/lua/strncat.c
@@ -0,0 +1,21 @@
+#include "rocklibc.h"
+
+/* gcc is broken and has a non-SUSv2 compliant internal prototype.
+ * This causes it to warn about a type mismatch here. Ignore it. */
+char *strncat(char *s, const char *t, size_t n) {
+ char *dest=s;
+ register char *max;
+ s+=strlen(s);
+ if (__unlikely((max=s+n)==s)) goto fini;
+ for (;;) {
+ if (__unlikely(!(*s = *t))) break; if (__unlikely(++s==max)) break; ++t;
+#ifndef WANT_SMALL_STRING_ROUTINES
+ if (__unlikely(!(*s = *t))) break; if (__unlikely(++s==max)) break; ++t;
+ if (__unlikely(!(*s = *t))) break; if (__unlikely(++s==max)) break; ++t;
+ if (__unlikely(!(*s = *t))) break; if (__unlikely(++s==max)) break; ++t;
+#endif
+ }
+ *s=0;
+fini:
+ return dest;
+}