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Don't dump core for a known, documented bug.

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PR:	12611
Reviewed by:	markm
This commit is contained in:
Sheldon Hearn 1999-07-22 17:33:11 +00:00
parent 8db8a33bb9
commit d8d41a0985
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=48997
1 changed files with 21 additions and 1 deletions
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22
usr.bin/jot/jot.c
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@ -42,7 +42,7 @@ static const char copyright[] =
static char sccsid[] = "@(#)jot.c 8.1 (Berkeley) 6/6/93";
#endif
static const char rcsid[] =
"$Id: jot.c,v 1.9 1999/05/13 12:18:24 kris Exp $";
"$Id: jot.c,v 1.10 1999/07/22 17:11:59 sheldonh Exp $";
#endif /* not lint */
/*
@ -54,6 +54,7 @@ static const char rcsid[] =
#include <ctype.h>
#include <err.h>
#include <limits.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
@ -79,9 +80,13 @@ int intdata;
int chardata;
int nosign;
int nofinalnl;
int oflowlen;
char *oflowstr;
char *sepstring = "\n";
char format[BUFSIZ];
struct sigaction act, oact;
void arith_oflow __P((int));
void getargs __P((int, char *[]));
void getformat __P((void));
int getprec __P((char *));
@ -99,6 +104,13 @@ main(argc, argv)
register double *y = &yd;
register long *i = &id;
act.sa_handler = arith_oflow;
act.sa_flags = 0;
sigfillset(&act.sa_mask);
oflowstr = "caught SIGFPE: arithmetic overflow\n";
oflowlen = strlen(oflowstr);
if (sigaction(SIGFPE, &act, &oact))
err(1, "loading SIGFPE handler");
getargs(argc, argv);
if (randomize) {
*x = (ender - begin) * (ender > begin ? 1 : -1);
@ -449,3 +461,11 @@ getformat()
}
}
}
void
arith_oflow(int sig)
{
write(STDERR_FILENO, oflowstr, oflowlen);
_exit(sig);
}