Git conversion: Make reactos the root directory, move rosapps, rostests, wallpapers...

[reactos.git] / modules / rosapps / applications / net / ncftp / Strn / Strncpy.c

diff --git a/modules/rosapps/applications/net/ncftp/Strn/Strncpy.c b/modules/rosapps/applications/net/ncftp/Strn/Strncpy.c
new file mode 100644 (file)
index 0000000..1d77499
--- /dev/null
+++ b/modules/rosapps/applications/net/ncftp/Strn/Strncpy.c
@@ -0,0 +1,45 @@
+#include <sys/types.h>
+#include <string.h>
+#include "Strn.h"
+
+
+/*
+ * Copy src to dst, truncating or null-padding to always copy n-1 bytes.
+ * Return dst.
+ */
+char *
+Strncpy(char *const dst, const char *const src, const size_t n)
+{
+       register char *d;
+       register const char *s;
+       register size_t i;
+
+       d = dst;
+       *d = 0;
+       if (n != 0) {
+               s = src;
+               /* If they specified a maximum of n characters, use n - 1 chars to
+                * hold the copy, and the last character in the array as a NUL.
+                * This is the difference between the regular strncpy routine.
+                * strncpy doesn't guarantee that your new string will have a
+                * NUL terminator, but this routine does.
+                */
+               for (i=1; i<n; i++) {
+                       if ((*d++ = *s++) == 0) {
+#if (STRN_ZERO_PAD == 1)
+                               /* Pad with zeros. */
+                               for (; i<n; i++)
+                                       *d++ = 0;
+#endif /* STRN_ZERO_PAD */
+                               return dst;
+                       }
+               }
+               /* If we get here, then we have a full string, with n - 1 characters,
+                * so now we NUL terminate it and go home.
+                */
+               *d = 0;
+       }
+       return (dst);
+}      /* Strncpy */
+
+/* eof Strn.c */