tyler.durden
/
dgamelaunch
mirror of https://github.com/paxed/dgamelaunch.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Block signals during writefile(). 

git-svn-id: svn://katsu.triplehelix.org/dgamelaunch/trunk@239 db0b04b0-f4d1-0310-9a6d-de3e77497b0e
This commit is contained in:
Jilles Tjoelker 2004-02-17 00:53:28 +00:00
parent 90fdfa022c
commit 8769ab9e15
1 changed files with 31 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

27
dgamelaunch.c
View File

@ -1285,17 +1285,31 @@ writefile (int requirenew)
int i = 0;
int my_done = 0;
struct flock fl = { 0 };
sigset_t oldmask, toblock;
fl.l_type = F_WRLCK;
fl.l_whence = SEEK_SET;
fl.l_start = 0;
fl.l_len = 0;
sigemptyset(&toblock);
sigaddset(&toblock, SIGHUP);
sigaddset(&toblock, SIGINT);
sigaddset(&toblock, SIGQUIT);
sigaddset(&toblock, SIGTERM);
sigprocmask(SIG_BLOCK, &toblock, &oldmask);
fpl = fopen (myconfig->lockfile, "r+");
if (!fpl)
{
sigprocmask(SIG_SETMASK, &oldmask, NULL);
graceful_exit (115);
}
if (fcntl (fileno (fpl), F_SETLK, &fl))
{
sigprocmask(SIG_SETMASK, &oldmask, NULL);
graceful_exit (107);
}
fl.l_type = F_UNLCK;
@ -1304,7 +1318,10 @@ writefile (int requirenew)
fp = fopen (myconfig->passwd, "w");
if (!fp)
{
sigprocmask(SIG_SETMASK, &oldmask, NULL);
graceful_exit (104);
}
for (i = 0; i < f_num; i++)
{
@ -1314,6 +1331,9 @@ writefile (int requirenew)
{
/* this is if someone managed to register at the same time
* as someone else. just die. */
fclose(fp);
fclose(fpl);
sigprocmask(SIG_SETMASK, &oldmask, NULL);
graceful_exit (111);
}
fprintf (fp, "%s:%s:%s:%s\n", me->username, me->email, me->password,
@ -1332,11 +1352,18 @@ writefile (int requirenew)
fprintf (fp, "%s:%s:%s:%s\n", me->username, me->email, me->password,
me->env);
else /* Oops, someone else registered the last available slot first */
{
fclose(fp);
fclose(fpl);
sigprocmask(SIG_SETMASK, &oldmask, NULL);
graceful_exit (116);
}
}
fclose (fp);
fclose (fpl);
sigprocmask(SIG_SETMASK, &oldmask, NULL);
}
/* ************************************************************* */