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zsh-3.1.5-pws-6

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This commit is contained in:
Tanaka Akira 1999-04-15 18:12:56 +00:00
parent 20d67907c9
commit 7a40d6c258
30 changed files with 1793 additions and 844 deletions
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45
Src/init.c
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@ -300,18 +300,61 @@ init_io(void)
/* Make sure the tty is opened read/write. */
if (isatty(0)) {
#ifdef TIOCNXCL
/*
* See if the terminal claims to be busy. If so, and fd 0
* is a terminal, try and set non-exclusive use for that.
* This is something to do with Solaris over-cleverness.
*/
int tmpfd;
if ((tmpfd = open("/dev/tty", O_RDWR | O_NOCTTY)) < 0) {
if (errno == EBUSY)
ioctl(0, TIOCNXCL, 0);
} else
close(tmpfd);
#endif
zsfree(ttystrname);
if ((ttystrname = ztrdup(ttyname(0))))
SHTTY = movefd(open(ttystrname, O_RDWR | O_NOCTTY));
/*
* xterm, rxvt and probably all terminal emulators except
* dtterm on Solaris 2.6 & 7 have a bug. Applications are
* unable to open /dev/tty or /dev/pts/<terminal number here>
* because something in Sun's STREAMS modules doesn't like
* it. The open() call fails with EBUSY which is not even
* listed as a possibility in the open(2) man page. So we'll
* try to outsmart The Company. -- <dave@srce.hr>
*
* Presumably there's no harm trying this on any OS, given that
* isatty(0) worked but opening the tty didn't. Possibly we won't
* get the tty read/write, but it's the best we can do -- pws
*
* Try both stdin and stdout before trying /dev/tty. -- Bart
*/
#if defined(HAVE_FCNTL_H) && defined(F_GETFL)
#define rdwrtty(fd) ((fcntl(fd, F_GETFL) & O_RDWR) == O_RDWR)
#else
#define rdwrtty(fd) 1
#endif
if (SHTTY == -1 && rdwrtty(0)) {
SHTTY = movefd(dup(0));
}
}
if (SHTTY == -1 && isatty(1) && rdwrtty(1) &&
(SHTTY = movefd(dup(1))) != -1) {
zsfree(ttystrname);
ttystrname = ztrdup(ttyname(1));
}
if (SHTTY == -1 &&
(SHTTY = movefd(open("/dev/tty", O_RDWR | O_NOCTTY))) != -1) {
zsfree(ttystrname);
ttystrname = ztrdup("/dev/tty");
ttystrname = ztrdup(ttyname(SHTTY));
}
if (SHTTY == -1) {
zsfree(ttystrname);
ttystrname = ztrdup("");
} else if (!ttystrname) {
ttystrname = ztrdup("/dev/tty");
}
/* We will only use zle if shell is interactive, *