diff options
Diffstat (limited to 'Src')
| -rw-r--r-- | Src/Modules/zpty.c | 115 |
1 files changed, 75 insertions, 40 deletions
diff --git a/Src/Modules/zpty.c b/Src/Modules/zpty.c index 60cf8fae9..38da5d500 100644 --- a/Src/Modules/zpty.c +++ b/Src/Modules/zpty.c @@ -155,33 +155,29 @@ getptycmd(char *name) /**** maybe we should use configure here */ /**** and we certainly need more/better #if tests */ -#ifdef __osf__ - -static int -get_pty(int *master, int *slave) -{ - return openpty(master, slave, NULL, NULL, NULL); -} - -#else /* ! __osf__ */ - #if defined(__SVR4) || defined(sinix) #include <sys/stropts.h> static int -get_pty(int *master, int *slave) +get_pty(int master, int *retfd) { - int mfd, sfd; - char *name; + static char *name; + static int mfd, sfd; + int ret; - if ((mfd = open("/dev/ptmx", O_RDWR)) < 0) - return 1; + if (master) { + if ((mfd = open("/dev/ptmx", O_RDWR)) < 0) + return 1; - if (grantpt(mfd) || unlockpt(mfd) || !(name = ptsname(mfd))) { - close(mfd); - return 1; + if (grantpt(mfd) || unlockpt(mfd) || !(name = ptsname(mfd))) { + close(mfd); + return 1; + } + *retfd = mfd; + + return 0; } if ((sfd = open(name, O_RDWR)) < 0) { close(mfd); @@ -205,8 +201,8 @@ get_pty(int *master, int *slave) close(sfd); return 1; } - *master = mfd; - *slave = sfd; + + *retfd = sfd; return 0; } @@ -214,7 +210,7 @@ get_pty(int *master, int *slave) #else /* ! (defined(__SVR4) || defined(sinix)) */ static int -get_pty(int *master, int *slave) +get_pty(int master, int *retfd) { #ifdef __linux @@ -225,33 +221,37 @@ get_pty(int *master, int *slave) static char char2[] = "0123456789abcdef"; #endif /* __linux */ - char name[11], *p1, *p2; - int mfd, sfd; + static char name[11]; + static int mfd, sfd; + char *p1, *p2; - strcpy(name, "/dev/ptyxx"); + if (master) { + strcpy(name, "/dev/ptyxx"); - for (p1 = char1; *p1; p1++) { - name[8] = *p1; - for (p2 = char2; *p2; p2++) { - name[9] = *p2; - if ((mfd = open(name, O_RDWR)) >= 0) { - name[5] = 't'; - if ((sfd = open(name, O_RDWR)) >= 0) { - *master = mfd; - *slave = sfd; + for (p1 = char1; *p1; p1++) { + name[8] = *p1; + for (p2 = char2; *p2; p2++) { + name[9] = *p2; + if ((mfd = open(name, O_RDWR)) >= 0) { + *retfd = mfd; return 0; } - name[5] = 'p'; - close(mfd); } } } + name[5] = 't'; + if ((sfd = open(name, O_RDWR)) >= 0) { + *retfd = sfd; + + return 0; + } + close(mfd); + return 1; } #endif /* __SVR4 */ -#endif /* __osf__ */ static int newptycmd(char *nam, char *pname, char **args, int echo, int block) @@ -264,7 +264,7 @@ newptycmd(char *nam, char *pname, char **args, int echo, int block) zwarnnam(nam, "unknown command: %s", *args, 0); return 1; } - if (get_pty(&master, &slave)) { + if (get_pty(1, &master)) { zwarnnam(nam, "can't open pseudo terminal", NULL, 0); return 1; } @@ -274,6 +274,42 @@ newptycmd(char *nam, char *pname, char **args, int echo, int block) zwarnnam(nam, "couldn't create pty command: %s", pname, 0); return 1; } else if (!pid) { + + pid = getpid(); + +#ifdef HAVE_SETSID + setsid(); +#else +#ifdef TIOCNOTTY + { + int t = open("/dev/tty", O_RDWR); + + ioctl(t, TIOCNOTTY, 0); + close(t); + } +#endif +#endif + + if (get_pty(0, &slave)) + exit(1); + +#ifdef TIOCSCTTY + ioctl(slave, TIOCSCTTY, 0); +#endif + + /* This is taken from attachtty(). Should we exit in case of + * failure? */ + +#ifdef HAVE_TCSETPGRP + tcsetpgrp(slave, pid); +#else +# if ardent + setpgrp(); +# else + ioctl(slave, TIOCSPGRP, &pid); +# endif +#endif + if (!echo) { struct ttyinfo info; @@ -317,13 +353,13 @@ newptycmd(char *nam, char *pname, char **args, int echo, int block) close(slave); - setpgrp(0L, getpid()); + if (SHTTY != -1) + close(SHTTY); execve(cmd, args, environ); exit(0); } master = movefd(master); - close(slave); p = (Ptycmd) zalloc(sizeof(*p)); @@ -539,7 +575,6 @@ bin_zpty(char *nam, char **args, char *ops, int func) zwarnnam(nam, "no such pty command: %s", *args, 0); return 1; } - checkptycmd(p); if (p->fin) return 1; return (ops['r'] ? |