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/*
* Copyright (c) 1998-2001 Proofpoint, Inc. and its suppliers.
* All rights reserved.
* Copyright (c) 1997 Eric P. Allman. All rights reserved.
* Copyright (c) 1988, 1993
* The Regents of the University of California. All rights reserved.
*
* By using this file, you agree to the terms and conditions set
* forth in the LICENSE file which can be found at the top level of
* the sendmail distribution.
*
*/
#include <sendmail.h>
SM_RCSID("@(#)$Id: snprintf.c,v 8.45 2013-11-22 20:51:50 ca Exp $")
/*
** SHORTENSTRING -- return short version of a string
**
** If the string is already short, just return it. If it is too
** long, return the head and tail of the string.
**
** Parameters:
** s -- the string to shorten.
** m -- the max length of the string (strlen()),
** limited to MAXSHORTSTR.
**
** Returns:
** Either s or a short version of s.
**
** Side Effects:
** The short version of s is a local static buffer.
** It must be copied before the function is called again.
*/
char *
shortenstring(s, m)
register const char *s;
size_t m;
{
size_t l;
static char buf[MAXSHORTSTR + 1];
l = strlen(s);
if (l < m)
return (char *) s;
if (m > MAXSHORTSTR)
m = MAXSHORTSTR;
else if (m < 10)
{
if (m < 5)
{
(void) sm_strlcpy(buf, s, m + 1);
return buf;
}
(void) sm_strlcpy(buf, s, m - 2);
(void) sm_strlcat(buf, "...", sizeof buf);
return buf;
}
m = (m - 3) / 2;
(void) sm_strlcpy(buf, s, m + 1);
(void) sm_strlcat2(buf, "...", s + l - m, sizeof buf);
return buf;
}
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