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#include <string.h>

char *strncpy (
  unsigned char *dst,         /* destination string */
  const unsigned char *src,   /* source string */
  unsigned int len);          /* max characters to copy */

The strncpy function copies at most len characters from src to dst. Characters are copied until a null character ('\0') is copied or until len characters have been copied. If the length of src is less than len the remaining bytes in dst are padded with null characters ('\0').

Return Value

The strncpy function returns dst.

See Also

strcat, strcpy, strlen, strncat

#include <string.h>
#include <stdio.h> /* for printf */

void tst_strncpy (const unsigned char *s) {
  const unsigned char buf [21];

  strncpy (buf, s, sizeof (buf));
  buf [sizeof (buf) -1] = '\0';
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