#include <config.h>

#include <rc_cmdlength.h>

#if HAVE_UNISTD_H

# include <unistd.h>

#endif

// XXX: Move to header.

size_t remoteconfig_cmdlength( const char *, const char *);

/* Bug 2853 */

/* evaluate the length of the command sequence. This breaks at the first

 * char that is not >= SPACE and <= 127 after trimming from the right.

 */

size_t

remoteconfig_cmdlength(

  const char *src_buf,

  const char *src_end

  )

{

  const char *scan;

  unsigned char ch;

  /* trim whitespace & garbage from the right */

  while (src_end != src_buf) {

    ch = src_end[-1];

    if (ch > ' ' && ch < 128)

      break;

    --src_end;

  }

  /* now do a forward scan */

  for (scan = src_buf; scan != src_end; ++scan) {

    ch = scan[0];

    if ((ch < ' ' || ch >= 128) && ch != '\t')

      break;

  }

  return (size_t)(scan - src_buf);

}