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Remove the casts on signal() returns and compare the returned value

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with SIG_ERR to detect the error case.

Suggested by: bde.
This commit is contained in:
John Birrell 1998-02-20 07:28:50 +00:00
parent d02327a118
commit d371a23e0b
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=33659
1 changed files with 5 additions and 5 deletions
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10
sbin/slattach/slattach.c
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@ -42,7 +42,7 @@ static char copyright[] =
#ifndef lint
/*static char sccsid[] = "from: @(#)slattach.c 4.6 (Berkeley) 6/1/90";*/
static char rcsid[] = "$Id: slattach.c,v 1.29 1997/12/21 13:42:27 eivind Exp $";
static char rcsid[] = "$Id: slattach.c,v 1.30 1998/01/25 09:16:55 jb Exp $";
#endif /* not lint */
#include <sys/types.h>
@ -208,13 +208,13 @@ main(int argc, char **argv)
slip_discipline(); /* switch to slip line discipline */
/* upon INT log a timestamp and exit. */
if ((long)signal(SIGINT,sigint_handler) < 0)
if (signal(SIGINT,sigint_handler) == SIG_ERR)
syslog(LOG_NOTICE,"cannot install SIGINT handler: %m");
/* upon TERM log a timestamp and exit. */
if ((long)signal(SIGTERM,sigterm_handler) < 0)
if (signal(SIGTERM,sigterm_handler) == SIG_ERR)
syslog(LOG_NOTICE,"cannot install SIGTERM handler: %m");
/* upon HUP redial and reconnect. */
if ((long)signal(SIGHUP,sighup_handler) < 0)
if (signal(SIGHUP,sighup_handler) == SIG_ERR)
syslog(LOG_NOTICE,"cannot install SIGHUP handler: %m");
if (redial_on_startup)
@ -272,7 +272,7 @@ void acquire_line()
fclose(pidfile);
}
if ((long)signal(SIGHUP,sighup_handler) < 0) /* Re-enable HUP signal */
if (signal(SIGHUP,sighup_handler) == SIG_ERR) /* Re-enable HUP signal */
syslog(LOG_NOTICE,"cannot install SIGHUP handler: %m");
if (uucp_lock) {