Release 4.14 arch/um/os-Linux/tty.c

/*
 * Copyright (C) 2002 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
 * Licensed under the GPL
 */

#include <stdlib.h>
#include <unistd.h>
#include <errno.h>
#include <fcntl.h>
#include <kern_util.h>
#include <os.h>


struct grantpt_info {
	
int fd;
	
int res;
	
int err;
};



static void grantpt_cb(void *arg)
{
	struct grantpt_info *info = arg;

	info->res = grantpt(info->fd);
	info->err = errno;
}

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Jeff Dike
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1
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34
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1
100.00%



int get_pty(void)
{
	struct grantpt_info info;
	int fd, err;

	fd = open("/dev/ptmx", O_RDWR);
	if (fd < 0) {
		err = -errno;
		printk(UM_KERN_ERR "get_pty : Couldn't open /dev/ptmx - "
		       "err = %d\n", errno);
		return err;
	}

	info.fd = fd;
	initial_thread_cb(grantpt_cb, &info);

	if (info.res < 0) {
		err = -info.err;
		printk(UM_KERN_ERR "get_pty : Couldn't grant pty - "
		       "errno = %d\n", -info.err);
		goto out;
	}

	if (unlockpt(fd) < 0) {
		err = -errno;
		printk(UM_KERN_ERR "get_pty : Couldn't unlock pty - "
		       "errno = %d\n", errno);
		goto out;
	}
	return fd;
out:
	close(fd);
	return err;
}
Contributors
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Jeff Dike
132
96.35%
3
75.00%
Paolo 'Blaisorblade' Giarrusso
5
3.65%
1
25.00%
Total
137
100.00%
4
100.00%

Overall Contributors
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Tokens
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Commits
CommitProp
Jeff Dike
197
96.57%
3
60.00%
Paolo 'Blaisorblade' Giarrusso
5
2.45%
1
20.00%
Al Viro
2
0.98%
1
20.00%
Total
204
100.00%
5
100.00%
Directory: arch/um/os-Linux

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