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- (dtucker) [openbsd-compat/readpassphrase.c] Update to OpenBSD's r1.22.

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Fixes bz #1590, where sometimes you could not interrupt a connection while
   ssh was prompting for a passphrase or password.
This commit is contained in:
Darren Tucker 2010-01-13 21:32:44 +11:00
parent 1035cb4729
commit d59487a33b
2 changed files with 22 additions and 13 deletions
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3
ChangeLog
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@ -3,6 +3,9 @@
- (dtucker) [openbsd-compat/readpassphrase.c] Resync against OpenBSD's r1.18: - (dtucker) [openbsd-compat/readpassphrase.c] Resync against OpenBSD's r1.18:
missing restore of SIGTTOU and some whitespace. missing restore of SIGTTOU and some whitespace.
- (dtucker) [openbsd-compat/readpassphrase.c] Update to OpenBSD's r1.21. - (dtucker) [openbsd-compat/readpassphrase.c] Update to OpenBSD's r1.21.
- (dtucker) [openbsd-compat/readpassphrase.c] Update to OpenBSD's r1.22.
Fixes bz #1590, where sometimes you could not interrupt a connection while
ssh was prompting for a passphrase or password.
20100112 20100112
- (dtucker) OpenBSD CVS Sync - (dtucker) OpenBSD CVS Sync

28
openbsd-compat/readpassphrase.c
View File

@ -1,4 +1,4 @@
/* $OpenBSD: readpassphrase.c,v 1.21 2008/01/17 16:27:07 millert Exp $ */ /* $OpenBSD: readpassphrase.c,v 1.22 2010/01/13 10:20:54 dtucker Exp $ */
/* /*
* Copyright (c) 2000-2002, 2007 Todd C. Miller <Todd.Miller@courtesan.com> * Copyright (c) 2000-2002, 2007 Todd C. Miller <Todd.Miller@courtesan.com>
@ -46,7 +46,7 @@
# define _POSIX_VDISABLE VDISABLE # define _POSIX_VDISABLE VDISABLE
#endif #endif
static volatile sig_atomic_t signo; static volatile sig_atomic_t signo[_NSIG];
static void handler(int); static void handler(int);
@ -54,7 +54,7 @@ char *
readpassphrase(const char *prompt, char *buf, size_t bufsiz, int flags) readpassphrase(const char *prompt, char *buf, size_t bufsiz, int flags)
{ {
ssize_t nr; ssize_t nr;
int input, output, save_errno; int input, output, save_errno, i, need_restart;
char ch, *p, *end; char ch, *p, *end;
struct termios term, oterm; struct termios term, oterm;
struct sigaction sa, savealrm, saveint, savehup, savequit, saveterm; struct sigaction sa, savealrm, saveint, savehup, savequit, saveterm;
@ -67,9 +67,11 @@ readpassphrase(const char *prompt, char *buf, size_t bufsiz, int flags)
} }
restart: restart:
signo = 0; for (i = 0; i < _NSIG; i++)
signo[i] = 0;
nr = -1; nr = -1;
save_errno = 0; save_errno = 0;
need_restart = 0;
/* /*
* Read and write to /dev/tty if available. If not, read from * Read and write to /dev/tty if available. If not, read from
* stdin and write to stderr unless a tty is required. * stdin and write to stderr unless a tty is required.
@ -120,7 +122,7 @@ restart:
} }
/* No I/O if we are already backgrounded. */ /* No I/O if we are already backgrounded. */
if (signo != SIGTTOU && signo != SIGTTIN) { if (signo[SIGTTOU] != 1 && signo[SIGTTIN] != 1) {
if (!(flags & RPP_STDIN)) if (!(flags & RPP_STDIN))
(void)write(output, prompt, strlen(prompt)); (void)write(output, prompt, strlen(prompt));
end = buf + bufsiz - 1; end = buf + bufsiz - 1;
@ -166,15 +168,19 @@ restart:
* If we were interrupted by a signal, resend it to ourselves * If we were interrupted by a signal, resend it to ourselves
* now that we have restored the signal handlers. * now that we have restored the signal handlers.
*/ */
if (signo) { for (i = 0; i < _NSIG; i++) {
kill(getpid(), signo); if (signo[i]) {
switch (signo) { kill(getpid(), i);
switch (i) {
case SIGTSTP: case SIGTSTP:
case SIGTTIN: case SIGTTIN:
case SIGTTOU: case SIGTTOU:
need_restart = 1;
}
}
}
if (need_restart)
goto restart; goto restart;
}
}
if (save_errno) if (save_errno)
errno = save_errno; errno = save_errno;
@ -194,6 +200,6 @@ getpass(const char *prompt)
static void handler(int s) static void handler(int s)
{ {
signo = s; signo[s] = 1;
} }
#endif /* HAVE_READPASSPHRASE */ #endif /* HAVE_READPASSPHRASE */