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source getpty() out to pty.c

master
Matthias-Christian Ott 2008-06-10 17:30:15 +02:00
parent 0dedee5de8
commit 47d8633f15
2 changed files with 41 additions and 35 deletions
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41
pty.c 100644
View File

@ -0,0 +1,41 @@
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <stdlib.h>
#if !(_POSIX_C_SOURCE >= 200112L || _XOPEN_SOURCE >= 600)
#include <pty.h>
#endif
extern int ptm, pts;
void
getpty(void) {
char *ptsdev;
#if defined(_GNU_SOURCE)
ptm = getpt();
#elif _POSIX_C_SOURCE >= 200112L || _XOPEN_SOURCE >= 600
ptm = posix_openpt(O_RDWR);
#else
ptm = open("/dev/ptmx", O_RDWR);
if(ptm == -1)
if(openpty(&ptm, &pts, NULL, NULL, NULL) == -1)
eprintn("error, cannot open pty");
#endif
#if defined(_XOPEN_SOURCE)
if(ptm != -1) {
if(grantpt(ptm) == -1)
eprintn("error, cannot grant access to pty");
if(unlockpt(ptm) == -1)
eprintn("error, cannot unlock pty");
ptsdev = ptsname(ptm);
if(!ptsdev)
eprintn("error, slave pty name undefined");
pts = open(ptsdev, O_RDWR);
if(pts == -1)
eprintn("error, cannot open slave pty");
}
else
eprintn("error, cannot open pty");
#endif
}

35
std.c
View File

@ -6,9 +6,6 @@
#include <ctype.h>
#include <errno.h>
#include <fcntl.h>
#if !(_POSIX_C_SOURCE >= 200112L || _XOPEN_SOURCE >= 600)
#include <pty.h>
#endif
#include <signal.h>
#include <stdarg.h>
#include <stdio.h>
@ -100,38 +97,6 @@ eprintn(const char *errstr, ...) {
exit(EXIT_FAILURE);
}
void
getpty(void) {
char *ptsdev;
#if defined(_GNU_SOURCE)
ptm = getpt();
#elif _POSIX_C_SOURCE >= 200112L || _XOPEN_SOURCE >= 600
ptm = posix_openpt(O_RDWR);
#else
ptm = open("/dev/ptmx", O_RDWR);
if(ptm == -1)
if(openpty(&ptm, &pts, NULL, NULL, NULL) == -1)
eprintn("error, cannot open pty");
#endif
#if defined(_XOPEN_SOURCE)
if(ptm != -1) {
if(grantpt(ptm) == -1)
eprintn("error, cannot grant access to pty");
if(unlockpt(ptm) == -1)
eprintn("error, cannot unlock pty");
ptsdev = ptsname(ptm);
if(!ptsdev)
eprintn("error, slave pty name undefined");
pts = open(ptsdev, O_RDWR);
if(pts == -1)
eprintn("error, cannot open slave pty");
}
else
eprintn("error, cannot open pty");
#endif
}
void
movea(int x, int y) {
x = MAX(x, cols);