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Make popper timeout after 120 seconds.

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git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@204 ec53bebd-3082-4978-b11e-865c3cabbd6b
This commit is contained in:
Björn Groenvall
1995-12-19 09:31:22 +00:00
parent 29e3943513
commit f9e9546ae5
4 changed files with 70 additions and 4 deletions
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58
appl/popper/popper.c
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@@ -11,10 +11,52 @@ static char SccsId[] = "@(#)@(#)popper.c 2.1 2.1 3/18/91";
#include <stdio.h>
#include <sys/types.h>
#include <signal.h>
#include <setjmp.h>
#include "popper.h"
extern state_table * pop_get_command();
int hangup = FALSE ;
static int
catchSIGHUP()
{
hangup = TRUE ;
/* This should not be a problem on BSD systems */
signal(SIGHUP, (void *)catchSIGHUP);
signal(SIGPIPE, (void *)catchSIGHUP);
}
int pop_timeout = POP_TIMEOUT;
jmp_buf env;
static int
ring()
{
longjmp(env,1);
}
/*
* fgets, but with a timeout
*/
static char *
tgets(char *str, int size, FILE *fp, int timeout)
{
int ring();
(void) signal(SIGALRM, (void *)ring);
alarm(timeout);
if (setjmp(env))
str = NULL;
else
str = fgets(str,size,fp);
alarm(0);
signal(SIGALRM,SIG_DFL);
return(str);
}
/*
* popper: Handle a Post Office Protocol version 3 session
*/
@@ -26,6 +68,9 @@ char ** argv;
state_table * s;
char message[MAXLINELEN];
(void) signal(SIGHUP,(void *)catchSIGHUP);
(void) signal(SIGPIPE,(void *)catchSIGHUP);
/* Start things rolling */
pop_init(&p,argc,argv);
@@ -40,11 +85,16 @@ char ** argv;
until the client quits or an error occurs. */
for (p.CurrentState=auth1;p.CurrentState!=halt&&p.CurrentState!=error;) {
/* Obtain a line from the client */
if (fgets(message,MAXLINELEN,p.input) == NULL) {
if (hangup) {
pop_msg(&p,POP_FAILURE,"POP hangup",p.myhost);
if (p.CurrentState > auth2 && !pop_updt(&p))
pop_msg(&p,POP_FAILURE,"POP mailbox update failed.",p.myhost);
p.CurrentState = error;
} else if (tgets(message,MAXLINELEN,p.input,pop_timeout) == NULL) {
pop_msg(&p,POP_FAILURE,"POP timeout",p.myhost);
if (p.CurrentState > auth2 && !pop_updt(&p))
pop_msg(&p,POP_FAILURE,"POP mailbox update failed!",p.myhost);
p.CurrentState = error;
pop_msg(&p,POP_FAILURE,"POP server at %s signing off.",p.myhost);
}
else {
/* Search for the command in the command/state table */