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| author | Peter Stephenson <p.w.stephenson@ntlworld.com> | 2013-08-26 21:01:17 +0100 |
|---|---|---|
| committer | Peter Stephenson <p.w.stephenson@ntlworld.com> | 2013-08-26 21:01:17 +0100 |
| commit | b0a0441902f848da4284e107c29e43e222252959 (patch) | |
| tree | 649fdd470bb380e4745593a6cd8959b9254d3234 /Src/Modules/zpty.c | |
| parent | f61804c4b49318d77c89729e959577a653cadbff (diff) | |
| download | zsh-b0a0441902f848da4284e107c29e43e222252959.tar.gz zsh-b0a0441902f848da4284e107c29e43e222252959.zip | |
31672: Add test that was failing and fix zpty set-up race
Diffstat (limited to 'Src/Modules/zpty.c')
| -rw-r--r-- | Src/Modules/zpty.c | 30 |
1 files changed, 28 insertions, 2 deletions
diff --git a/Src/Modules/zpty.c b/Src/Modules/zpty.c index 382119483..fca0cc172 100644 --- a/Src/Modules/zpty.c +++ b/Src/Modules/zpty.c @@ -293,8 +293,8 @@ static int newptycmd(char *nam, char *pname, char **args, int echo, int nblock) { Ptycmd p; - int master, slave, pid, oineval = ineval; - char *oscriptname = scriptname; + int master, slave, pid, oineval = ineval, ret; + char *oscriptname = scriptname, syncch; Eprog prog; /* code borrowed from bin_eval() */ @@ -398,6 +398,20 @@ newptycmd(char *nam, char *pname, char **args, int echo, int nblock) setsparam("TTY", ztrdup(ttystrname)); opts[INTERACTIVE] = 0; + + syncch = 0; + do { + ret = write(1, &syncch, 1); + } while (ret != 1 && ( +#ifdef EWOULDBLOCK + errno == EWOULDBLOCK || +#else +#ifdef EAGAIN + errno == EAGAIN || +#endif +#endif + errno == EINTR)); + execode(prog, 1, 0, "zpty"); stopmsg = 2; mypid = 0; /* trick to ensure we _exit() */ @@ -433,6 +447,18 @@ newptycmd(char *nam, char *pname, char **args, int echo, int nblock) scriptname = oscriptname; ineval = oineval; + do { + ret = read(master, &syncch, 1); + } while (ret != 1 && ( +#ifdef EWOULDBLOCK + errno == EWOULDBLOCK || +#else +#ifdef EAGAIN + errno == EAGAIN || +#endif +#endif + errno == EINTR)); + return 0; } |