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Imply a 10-second connection timeout when querying remote queues, to

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prevent lpq from hanging indefinately (well, 10 minutes are for sure
counting as `indefinately' in this case).
This commit is contained in:
Joerg Wunsch 1997-06-23 10:00:01 +00:00
parent 879210125e
commit 334a95086d
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=26844
1 changed files with 13 additions and 0 deletions
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13
usr.sbin/lpr/common_source/displayq.c
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@ -73,6 +73,8 @@ static long totsize; /* total print job size in bytes */
static char *head0 = "Rank Owner Job Files";
static char *head1 = "Total Size\n";
static void alarmhandler __P((int));
/*
* Display the current state of the queue. Format = 1 if long format.
*/
@ -86,6 +88,7 @@ displayq(format)
struct queue **queue;
struct stat statb;
FILE *fp;
void (*savealrm)(int);
lflag = format;
totsize = 0;
@ -212,7 +215,10 @@ displayq(format)
(void) strcpy(cp, user[i]);
}
strcat(line, "\n");
savealrm = signal(SIGALRM, alarmhandler);
alarm(10);
fd = getport(RM, 0);
(void)signal(SIGALRM, savealrm);
if (fd < 0) {
if (from != host)
printf("%s: ", host);
@ -446,3 +452,10 @@ prank(n)
col += strlen(rline);
printf("%s", rline);
}
void
alarmhandler(signo)
int signo;
{
/* ignored */
}