92bd44f922
Fri Jun 28 2002 Trond Eivind Glomsrød <teg@redhat.com> 4.0.4-8 - Make it work with a serial port (#56353) - Add $HOME/bin to path for login shells (#67110)
66 lines
1.8 KiB
Diff
66 lines
1.8 KiB
Diff
--- zsh-4.0.4/Src/builtin.c.open Tue Oct 16 02:49:17 2001
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+++ zsh-4.0.4/Src/builtin.c Wed May 15 11:55:32 2002
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@@ -3489,7 +3489,7 @@ bin_read(char *name, char **args, char *
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if (!zleactive) {
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if (SHTTY == -1) {
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/* need to open /dev/tty specially */
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- if ((SHTTY = open("/dev/tty", O_RDWR|O_NOCTTY)) != -1) {
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+ if ((SHTTY = block_open("/dev/tty", O_RDWR|O_NOCTTY)) != -1) {
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haso = 1;
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oshout = shout;
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init_shout();
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--- zsh-4.0.4/Src/init.c.open Wed Oct 24 04:16:32 2001
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+++ zsh-4.0.4/Src/init.c Wed May 15 12:00:07 2002
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@@ -397,7 +397,7 @@ init_io(void)
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if (isatty(0)) {
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zsfree(ttystrname);
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if ((ttystrname = ztrdup(ttyname(0)))) {
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- SHTTY = movefd(open(ttystrname, O_RDWR | O_NOCTTY));
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+ SHTTY = movefd(block_open(ttystrname, O_RDWR | O_NOCTTY));
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#ifdef TIOCNXCL
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/*
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* See if the terminal claims to be busy. If so, and fd 0
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@@ -438,7 +438,7 @@ init_io(void)
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ttystrname = ztrdup(ttyname(1));
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}
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if (SHTTY == -1 &&
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- (SHTTY = movefd(open("/dev/tty", O_RDWR | O_NOCTTY))) != -1) {
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+ (SHTTY = movefd(block_open("/dev/tty", O_RDWR | O_NOCTTY))) != -1) {
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zsfree(ttystrname);
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ttystrname = ztrdup(ttyname(SHTTY));
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}
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@@ -1235,3 +1235,33 @@ zsh_main(int argc, char **argv)
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: "use 'logout' to logout.", NULL, 0);
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}
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}
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+
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+/**/
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+int
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+block_open (const char *tty, int flags)
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+{
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+ int saved_errno;
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+ int fd;
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+
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+ if ((flags & O_NONBLOCK) == 0) {
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+ fd = open (tty, flags | O_NONBLOCK);
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+ if (fd == -1)
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+ return fd;
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+ flags = fcntl(fd, F_GETFL);
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+ if (flags == -1)
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+ goto bad;
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+ flags &= ~O_NONBLOCK;
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+ if (fcntl(fd, F_SETFL, flags) == -1)
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+ goto bad;
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+ }
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+ else
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+ fd = open (tty, flags);
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+
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+ return fd;
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+
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+bad:
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+ saved_errno = errno;
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+ close (fd);
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+ errno = saved_errno;
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+ return -1;
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+}
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