72 lines
2.1 KiB
Plaintext
72 lines
2.1 KiB
Plaintext
$OpenBSD: patch-Tty_xs,v 1.1 2004/08/28 22:54:50 millert Exp $
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--- Tty.xs.orig Wed Mar 6 06:47:32 2002
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+++ Tty.xs Sat Aug 28 13:02:55 2004
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@@ -271,6 +271,7 @@ make_safe_fd(int * fd)
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}
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}
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+#if !defined(HAVE_OPENPTY)
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/*
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* After having acquired a master pty, try to find out the slave name,
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* initialize and open the slave.
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@@ -433,6 +434,7 @@ open_slave(int *ptyfd, int *ttyfd, char
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return 1;
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}
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+#endif
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/*
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* Allocates and opens a pty. Returns 0 if no pty could be allocated, or
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@@ -488,7 +490,7 @@ allocate_pty(int *ptyfd, int *ttyfd, cha
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}
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#endif
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-#if defined(HAVE_PTSNAME) || defined(HAVE_PTSNAME_R)
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+#if defined(HAVE_PTSNAME) || defined(HAVE_PTSNAME_R) || defined(HAVE_OPENPTY)
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/* we don't need to try these if we don't have a way to get the pty names */
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#if defined(HAVE_GETPT)
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@@ -505,29 +507,21 @@ allocate_pty(int *ptyfd, int *ttyfd, cha
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#endif /* defined(HAVE_GETPT) */
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#if defined(HAVE_OPENPTY)
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- /* openpty(3) exists in a variety of OS'es, but due to it's
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- * broken interface (no maxlen to slavename) we'll only use it
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- * to create the tty/pty pair and rely on ptsname to get the
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- * name. */
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- {
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- mysig_t old_signal;
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- int ret;
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-
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+ /* openpty(3) is documented to require 16 bytes for the
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+ * slave name. We always allocate 64 so it is safe...
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+ */
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#if PTY_DEBUG
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- if (print_debug)
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- fprintf(stderr, "trying openpty()...\n");
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+ if (print_debug)
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+ fprintf(stderr, "trying openpty()...\n");
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#endif
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- old_signal = mysignal(SIGCHLD, SIG_DFL);
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- ret = openpty(ptyfd, ttyfd, NULL, NULL, NULL);
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- mysignal(SIGCHLD, old_signal);
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- if (ret >= 0 && *ptyfd >= 0) {
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- if (open_slave(ptyfd, ttyfd, namebuf, namebuflen))
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- break;
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- }
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- *ptyfd = -1;
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- *ttyfd = -1;
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- if (PL_dowarn)
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- warn("pty_allocate(nonfatal): openpty(): %.100s", strerror(errno));
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+ if (openpty(ptyfd, ttyfd, namebuf, NULL, NULL) == 0) {
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+ make_safe_fd(ptyfd);
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+ make_safe_fd(ttyfd);
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+ return 1;
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+ } else {
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+ if (PL_dowarn)
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+ warn("pty_allocate: openpty(): %.100s", strerror(errno));
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+ return 0;
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}
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#endif /* defined(HAVE_OPENPTY) */
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