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Add Linux ptrace() tutorial

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This commit is contained in:
Justine Tunney 2022-03-24 08:00:21 -07:00
parent 98909b1391
commit 3b9e66ecba
14 changed files with 1290 additions and 23 deletions
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8
tool/net/redbean.c
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@ -2674,7 +2674,7 @@ static void LaunchBrowser(const char *path) {
sigprocmask(SIG_BLOCK, &chldmask, &savemask);
CHECK_NE(-1, (pid = fork()));
if (!pid) {
setpgid(getpid(), getpid());
setpgid(getpid(), getpid()); // ctrl-c'ing redbean shouldn't kill browser
sigaction(SIGINT, &saveint, 0);
sigaction(SIGQUIT, &savequit, 0);
sigprocmask(SIG_SETMASK, &savemask, 0);
@ -6605,7 +6605,7 @@ static void RestoreApe(void) {
WARNF("(srvr) can't restore .ape");
free(p);
} else {
WARNF("(srvr) /.ape not found");
INFOF("(srvr) /.ape not found");
}
}
@ -6907,6 +6907,10 @@ void RedBean(int argc, char *argv[]) {
if (daemonize) {
Daemonize();
} else {
// xxx: create process group to make it easier to propagate SIGTERM
// to children. the downside to doing this seems to be that
// ctrl-c isn't propagating as expected when running redbean
// underneath strace.com :|
setpgid(getpid(), getpid());
if (logpath) {
close(2);