mirror of
https://gitlab.com/qemu-project/qemu
synced 2024-11-05 20:35:44 +00:00
6ad3f09bd4
Include termios.h as POSIX fallback when not glibc, bsd or solaris. POSIX says that termios.h should define struct termios and TCAFLUSH. http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/termios.h.html This fixes the following compile errors with musl libc: util/qemu-openpty.c: In function 'qemu_openpty_raw': util/qemu-openpty.c:112:20: error: storage size of 'tty' isn't known struct termios tty; ^ ... util/qemu-openpty.c:128:24: error: 'TCSAFLUSH' undeclared (first use in this function) tcsetattr(*aslave, TCSAFLUSH, &tty); ^ Signed-off-by: Natanael Copa <ncopa@alpinelinux.org> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
137 lines
3.8 KiB
C
137 lines
3.8 KiB
C
/*
|
|
* qemu-openpty.c
|
|
*
|
|
* Copyright (c) 2003-2008 Fabrice Bellard
|
|
* Copyright (c) 2010 Red Hat, Inc.
|
|
*
|
|
* Wrapper function qemu_openpty() implementation.
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
* of this software and associated documentation files (the "Software"), to deal
|
|
* in the Software without restriction, including without limitation the rights
|
|
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
* copies of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
* THE SOFTWARE.
|
|
*/
|
|
|
|
/*
|
|
* This is not part of oslib-posix.c because this function
|
|
* uses openpty() which often in -lutil, and if we add this
|
|
* dependency to oslib-posix.o, every app will have to be
|
|
* linked with -lutil.
|
|
*/
|
|
|
|
#include "config-host.h"
|
|
#include "qemu-common.h"
|
|
|
|
#if defined(__GLIBC__)
|
|
# include <pty.h>
|
|
#elif defined CONFIG_BSD
|
|
# include <termios.h>
|
|
# if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
|
|
# include <libutil.h>
|
|
# else
|
|
# include <util.h>
|
|
# endif
|
|
#elif defined CONFIG_SOLARIS
|
|
# include <termios.h>
|
|
# include <stropts.h>
|
|
#else
|
|
# include <termios.h>
|
|
#endif
|
|
|
|
#ifdef __sun__
|
|
/* Once Solaris has openpty(), this is going to be removed. */
|
|
static int openpty(int *amaster, int *aslave, char *name,
|
|
struct termios *termp, struct winsize *winp)
|
|
{
|
|
const char *slave;
|
|
int mfd = -1, sfd = -1;
|
|
|
|
*amaster = *aslave = -1;
|
|
|
|
mfd = open("/dev/ptmx", O_RDWR | O_NOCTTY);
|
|
if (mfd < 0)
|
|
goto err;
|
|
|
|
if (grantpt(mfd) == -1 || unlockpt(mfd) == -1)
|
|
goto err;
|
|
|
|
if ((slave = ptsname(mfd)) == NULL)
|
|
goto err;
|
|
|
|
if ((sfd = open(slave, O_RDONLY | O_NOCTTY)) == -1)
|
|
goto err;
|
|
|
|
if (ioctl(sfd, I_PUSH, "ptem") == -1 ||
|
|
(termp != NULL && tcgetattr(sfd, termp) < 0))
|
|
goto err;
|
|
|
|
if (amaster)
|
|
*amaster = mfd;
|
|
if (aslave)
|
|
*aslave = sfd;
|
|
if (winp)
|
|
ioctl(sfd, TIOCSWINSZ, winp);
|
|
|
|
return 0;
|
|
|
|
err:
|
|
if (sfd != -1)
|
|
close(sfd);
|
|
close(mfd);
|
|
return -1;
|
|
}
|
|
|
|
static void cfmakeraw (struct termios *termios_p)
|
|
{
|
|
termios_p->c_iflag &=
|
|
~(IGNBRK|BRKINT|PARMRK|ISTRIP|INLCR|IGNCR|ICRNL|IXON);
|
|
termios_p->c_oflag &= ~OPOST;
|
|
termios_p->c_lflag &= ~(ECHO|ECHONL|ICANON|ISIG|IEXTEN);
|
|
termios_p->c_cflag &= ~(CSIZE|PARENB);
|
|
termios_p->c_cflag |= CS8;
|
|
|
|
termios_p->c_cc[VMIN] = 0;
|
|
termios_p->c_cc[VTIME] = 0;
|
|
}
|
|
#endif
|
|
|
|
int qemu_openpty_raw(int *aslave, char *pty_name)
|
|
{
|
|
int amaster;
|
|
struct termios tty;
|
|
#if defined(__OpenBSD__) || defined(__DragonFly__)
|
|
char pty_buf[PATH_MAX];
|
|
#define q_ptsname(x) pty_buf
|
|
#else
|
|
char *pty_buf = NULL;
|
|
#define q_ptsname(x) ptsname(x)
|
|
#endif
|
|
|
|
if (openpty(&amaster, aslave, pty_buf, NULL, NULL) < 0) {
|
|
return -1;
|
|
}
|
|
|
|
/* Set raw attributes on the pty. */
|
|
tcgetattr(*aslave, &tty);
|
|
cfmakeraw(&tty);
|
|
tcsetattr(*aslave, TCSAFLUSH, &tty);
|
|
|
|
if (pty_name) {
|
|
strcpy(pty_name, q_ptsname(amaster));
|
|
}
|
|
|
|
return amaster;
|
|
}
|