=================================================================== RCS file: /cvsrepo/anoncvs/cvs/src/usr.bin/ssh/sshpty.c,v retrieving revision 1.10 retrieving revision 1.10.2.2 diff -u -r1.10 -r1.10.2.2 --- src/usr.bin/ssh/sshpty.c 2003/06/12 07:57:38 1.10 +++ src/usr.bin/ssh/sshpty.c 2004/08/19 22:37:33 1.10.2.2 @@ -12,7 +12,7 @@ */ #include "includes.h" -RCSID("$OpenBSD: sshpty.c,v 1.10 2003/06/12 07:57:38 markus Exp $"); +RCSID("$OpenBSD: sshpty.c,v 1.10.2.2 2004/08/19 22:37:33 brad Exp $"); #include #include "sshpty.h" @@ -37,8 +37,6 @@ int pty_allocate(int *ptyfd, int *ttyfd, char *namebuf, int namebuflen) { -#if defined(HAVE_OPENPTY) || defined(BSD4_4) - /* openpty(3) exists in OSF/1 and some other os'es */ char buf[64]; int i; @@ -49,142 +47,23 @@ } strlcpy(namebuf, buf, namebuflen); /* possible truncation */ return 1; -#else /* HAVE_OPENPTY */ -#ifdef HAVE__GETPTY - /* - * _getpty(3) exists in SGI Irix 4.x, 5.x & 6.x -- it generates more - * pty's automagically when needed - */ - char *slave; - - slave = _getpty(ptyfd, O_RDWR, 0622, 0); - if (slave == NULL) { - error("_getpty: %.100s", strerror(errno)); - return 0; - } - strlcpy(namebuf, slave, namebuflen); - /* Open the slave side. */ - *ttyfd = open(namebuf, O_RDWR | O_NOCTTY); - if (*ttyfd < 0) { - error("%.200s: %.100s", namebuf, strerror(errno)); - close(*ptyfd); - return 0; - } - return 1; -#else /* HAVE__GETPTY */ -#ifdef HAVE_DEV_PTMX - /* - * This code is used e.g. on Solaris 2.x. (Note that Solaris 2.3 - * also has bsd-style ptys, but they simply do not work.) - */ - int ptm; - char *pts; - - ptm = open("/dev/ptmx", O_RDWR | O_NOCTTY); - if (ptm < 0) { - error("/dev/ptmx: %.100s", strerror(errno)); - return 0; - } - if (grantpt(ptm) < 0) { - error("grantpt: %.100s", strerror(errno)); - return 0; - } - if (unlockpt(ptm) < 0) { - error("unlockpt: %.100s", strerror(errno)); - return 0; - } - pts = ptsname(ptm); - if (pts == NULL) - error("Slave pty side name could not be obtained."); - strlcpy(namebuf, pts, namebuflen); - *ptyfd = ptm; - - /* Open the slave side. */ - *ttyfd = open(namebuf, O_RDWR | O_NOCTTY); - if (*ttyfd < 0) { - error("%.100s: %.100s", namebuf, strerror(errno)); - close(*ptyfd); - return 0; - } - /* Push the appropriate streams modules, as described in Solaris pts(7). */ - if (ioctl(*ttyfd, I_PUSH, "ptem") < 0) - error("ioctl I_PUSH ptem: %.100s", strerror(errno)); - if (ioctl(*ttyfd, I_PUSH, "ldterm") < 0) - error("ioctl I_PUSH ldterm: %.100s", strerror(errno)); - if (ioctl(*ttyfd, I_PUSH, "ttcompat") < 0) - error("ioctl I_PUSH ttcompat: %.100s", strerror(errno)); - return 1; -#else /* HAVE_DEV_PTMX */ -#ifdef HAVE_DEV_PTS_AND_PTC - /* AIX-style pty code. */ - const char *name; - - *ptyfd = open("/dev/ptc", O_RDWR | O_NOCTTY); - if (*ptyfd < 0) { - error("Could not open /dev/ptc: %.100s", strerror(errno)); - return 0; - } - name = ttyname(*ptyfd); - if (!name) - fatal("Open of /dev/ptc returns device for which ttyname fails."); - strlcpy(namebuf, name, namebuflen); - *ttyfd = open(name, O_RDWR | O_NOCTTY); - if (*ttyfd < 0) { - error("Could not open pty slave side %.100s: %.100s", - name, strerror(errno)); - close(*ptyfd); - return 0; - } - return 1; -#else /* HAVE_DEV_PTS_AND_PTC */ - /* BSD-style pty code. */ - char buf[64]; - int i; - const char *ptymajors = "pqrstuvwxyzabcdefghijklmnoABCDEFGHIJKLMNOPQRSTUVWXYZ"; - const char *ptyminors = "0123456789abcdef"; - int num_minors = strlen(ptyminors); - int num_ptys = strlen(ptymajors) * num_minors; - - for (i = 0; i < num_ptys; i++) { - snprintf(buf, sizeof buf, "/dev/pty%c%c", ptymajors[i / num_minors], - ptyminors[i % num_minors]); - *ptyfd = open(buf, O_RDWR | O_NOCTTY); - if (*ptyfd < 0) - continue; - snprintf(namebuf, namebuflen, "/dev/tty%c%c", - ptymajors[i / num_minors], ptyminors[i % num_minors]); - - /* Open the slave side. */ - *ttyfd = open(namebuf, O_RDWR | O_NOCTTY); - if (*ttyfd < 0) { - error("%.100s: %.100s", namebuf, strerror(errno)); - close(*ptyfd); - return 0; - } - return 1; - } - return 0; -#endif /* HAVE_DEV_PTS_AND_PTC */ -#endif /* HAVE_DEV_PTMX */ -#endif /* HAVE__GETPTY */ -#endif /* HAVE_OPENPTY */ } /* Releases the tty. Its ownership is returned to root, and permissions to 0666. */ void -pty_release(const char *ttyname) +pty_release(const char *tty) { - if (chown(ttyname, (uid_t) 0, (gid_t) 0) < 0) - error("chown %.100s 0 0 failed: %.100s", ttyname, strerror(errno)); - if (chmod(ttyname, (mode_t) 0666) < 0) - error("chmod %.100s 0666 failed: %.100s", ttyname, strerror(errno)); + if (chown(tty, (uid_t) 0, (gid_t) 0) < 0) + error("chown %.100s 0 0 failed: %.100s", tty, strerror(errno)); + if (chmod(tty, (mode_t) 0666) < 0) + error("chmod %.100s 0666 failed: %.100s", tty, strerror(errno)); } /* Makes the tty the process's controlling tty and sets it to sane modes. */ void -pty_make_controlling_tty(int *ttyfd, const char *ttyname) +pty_make_controlling_tty(int *ttyfd, const char *tty) { int fd; @@ -214,9 +93,9 @@ if (ioctl(*ttyfd, TIOCSCTTY, NULL) < 0) error("ioctl(TIOCSCTTY): %.100s", strerror(errno)); #endif /* TIOCSCTTY */ - fd = open(ttyname, O_RDWR); + fd = open(tty, O_RDWR); if (fd < 0) - error("%.100s: %.100s", ttyname, strerror(errno)); + error("%.100s: %.100s", tty, strerror(errno)); else close(fd); @@ -245,7 +124,7 @@ } void -pty_setowner(struct passwd *pw, const char *ttyname) +pty_setowner(struct passwd *pw, const char *tty) { struct group *grp; gid_t gid; @@ -267,33 +146,33 @@ * Warn but continue if filesystem is read-only and the uids match/ * tty is owned by root. */ - if (stat(ttyname, &st)) - fatal("stat(%.100s) failed: %.100s", ttyname, + if (stat(tty, &st)) + fatal("stat(%.100s) failed: %.100s", tty, strerror(errno)); if (st.st_uid != pw->pw_uid || st.st_gid != gid) { - if (chown(ttyname, pw->pw_uid, gid) < 0) { + if (chown(tty, pw->pw_uid, gid) < 0) { if (errno == EROFS && (st.st_uid == pw->pw_uid || st.st_uid == 0)) debug("chown(%.100s, %u, %u) failed: %.100s", - ttyname, (u_int)pw->pw_uid, (u_int)gid, + tty, (u_int)pw->pw_uid, (u_int)gid, strerror(errno)); else fatal("chown(%.100s, %u, %u) failed: %.100s", - ttyname, (u_int)pw->pw_uid, (u_int)gid, + tty, (u_int)pw->pw_uid, (u_int)gid, strerror(errno)); } } if ((st.st_mode & (S_IRWXU|S_IRWXG|S_IRWXO)) != mode) { - if (chmod(ttyname, mode) < 0) { + if (chmod(tty, mode) < 0) { if (errno == EROFS && (st.st_mode & (S_IRGRP | S_IROTH)) == 0) debug("chmod(%.100s, 0%o) failed: %.100s", - ttyname, (u_int)mode, strerror(errno)); + tty, (u_int)mode, strerror(errno)); else fatal("chmod(%.100s, 0%o) failed: %.100s", - ttyname, (u_int)mode, strerror(errno)); + tty, (u_int)mode, strerror(errno)); } } }