/*
* Copyright (c) 2016 Nicholas Marriott <[email protected]>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/

#include <sys/types.h>

#include <stdarg.h>
#include <stdlib.h>
#include <string.h>

#include "compat.h"

#if defined(HAVE_PRCTL) && defined(HAVE_PR_SET_NAME)

#include <sys/prctl.h>

void
setproctitle(const char *fmt, ...)
{
       char    title[16], name[16], *cp;
       va_list ap;
       int     used;

       va_start(ap, fmt);
       vsnprintf(title, sizeof title, fmt, ap);
       va_end(ap);

       used = snprintf(name, sizeof name, "%s: %s", getprogname(), title);
       if (used >= (int)sizeof name) {
               cp = strrchr(name, ' ');
               if (cp != NULL)
                       *cp = '\0';
       }
       prctl(PR_SET_NAME, name);
}
#else
void
setproctitle(__unused const char *fmt, ...)
{
}
#endif

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