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When sending a signal to an /exec'd command, send it to the process

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group id instead of the process id. (This covers the case of /bin/sh
instances which fork/exec commands passed via -c. In such cases,
sending a signal to the stored process id would sent it to the /bin/sh
process itself, not the forked child.)

Add error reporting to sending signals.


git-svn-id: file:///var/www/svn.irssi.org/SVN/irssi/trunk@5174 dbcabf3a-b0e7-0310-adc4-f8d773084564
This commit is contained in:
Jase Thew 2010-05-20 19:00:12 +00:00 committed by bazerka
parent c6986ff767
commit cbe61df25c
1 changed files with 13 additions and 4 deletions
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17
src/fe-common/core/fe-exec.c
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@ -197,11 +197,16 @@ static void process_destroy(PROCESS_REC *rec, int status)
static void processes_killall(int signum)
{
GSList *tmp;
int kill_ret;
for (tmp = processes; tmp != NULL; tmp = tmp->next) {
PROCESS_REC *rec = tmp->data;
kill(rec->pid, signum);
kill_ret = kill(-rec->pid, signum);
if (kill_ret != 0)
printtext(NULL, NULL, MSGLEVEL_CLIENTERROR,
"Error sending signal %d to pid %d: %s",
signum, rec->pid, g_strerror(errno));
}
}
@ -378,7 +383,7 @@ static void handle_exec(const char *args, GHashTable *optlist,
PROCESS_REC *rec;
SERVER_REC *target_server;
char *target, *level;
int notice, signum, interactive, target_nick, target_channel;
int notice, signum, interactive, target_nick, target_channel, kill_ret;
/* check that there's no unknown options. we allowed them
because signals can be used as options, but there should be
@ -445,8 +450,12 @@ static void handle_exec(const char *args, GHashTable *optlist,
}
if (signum != -1) {
/* send a signal to process */
kill(rec->pid, signum);
/* send a signal to process group */
kill_ret = kill(-rec->pid, signum);
if (kill_ret != 0)
printtext(NULL, NULL, MSGLEVEL_CLIENTERROR,
"Error sending signal %d to pid %d: %s",
signum, rec->pid, g_strerror(errno));
return;
}