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Implements an openpty wrapper for solaris based systems

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This is only used by proc_open pty support, and as such declared
directly there.
This commit is contained in:
David Carlier 2020-06-15 09:53:30 +01:00 • committed by Nikita Popov
parent 727ae51a0c
commit 15b2cc7c28
1 changed files with 57 additions and 0 deletions
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57
ext/standard/proc_open.c
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@ -56,6 +56,63 @@ extern int openpty(int *, int *, char *, struct termios *, struct winsize *);
/* Mac OS X (and some BSDs) define `openpty` in <util.h> */
# include <util.h>
# endif
#elif defined(__sun)
# include <fcntl.h>
# include <stropts.h>
# include <termios.h>
# define HAVE_OPENPTY 1
/* Solaris/Illumos does not have any openpty implementation */
int openpty(int *master, int *slave, char *name, struct termios *termp, struct winsize *winp)
{
int fd, sd;
const char *slaveid;
assert(master);
assert(slave);
sd = *master = *slave = -1;
fd = open("/dev/ptmx", O_NOCTTY|O_RDWR);
if (fd == -1) {
return -1;
}
/* Checking if we can have to the pseudo terminal */
if (grantpt(fd) != 0 || unlockpt(fd) != 0) {
goto fail;
}
slaveid = ptsname(fd);
if (!slaveid) {
goto fail;
}
/* Getting the slave path and pushing pseudo terminal */
sd = open(slaveid, O_NOCTTY|O_RDONLY);
if (sd == -1 || ioctl(sd, I_PUSH, "ptem") == -1) {
goto fail;
}
if (termp) {
if (tcgetattr(sd, termp) < 0) {
goto fail;
}
}
if (winp) {
if (ioctl(sd, TIOCSWINSZ, winp) == -1) {
goto fail;
}
}
*slave = sd;
*master = fd;
return 0;
fail:
if (sd != -1) {
close(sd);
}
if (fd != -1) {
close(fd);
}
return -1;
}
#endif
#include "proc_open.h"