diff options
Diffstat (limited to 'Src/Modules/clone.c')
| -rw-r--r-- | Src/Modules/clone.c | 47 |
1 files changed, 30 insertions, 17 deletions
diff --git a/Src/Modules/clone.c b/Src/Modules/clone.c index 335f0fc80..bb2240d49 100644 --- a/Src/Modules/clone.c +++ b/Src/Modules/clone.c @@ -43,7 +43,7 @@ static int bin_clone(char *nam, char **args, Options ops, int func) { - int ttyfd, pid; + int ttyfd, pid, cttyfd; unmetafy(*args, NULL); ttyfd = open(*args, O_RDWR|O_NOCTTY); @@ -57,29 +57,42 @@ bin_clone(char *nam, char **args, Options ops, int func) ppid = getppid(); mypid = getpid(); #ifdef HAVE_SETSID - if (setsid() != mypid) { + if (setsid() != mypid) zwarnnam(nam, "failed to create new session: %e", NULL, errno); -#endif -#ifdef TIOCNOTTY +#elif defined(TIOCNOTTY) if (ioctl(SHTTY, TIOCNOTTY, 0)) - zwarnnam(nam, "%e", NULL, errno); + zwarnnam(*args, "%e", NULL, errno); setpgrp(0L, mypid); #endif -#ifdef HAVE_SETSID - } -#endif - if (ttyfd) { - close(0); - dup(ttyfd); - } else - ttyfd = -1; - close(1); - close(2); - dup(0); - dup(0); + dup2(ttyfd,0); + dup2(ttyfd,1); + dup2(ttyfd,2); + if (ttyfd > 2) + close(ttyfd); closem(0); close(coprocin); close(coprocout); + /* Acquire a controlling terminal */ + cttyfd = open(*args, O_RDWR); + if (cttyfd == -1) + zwarnnam(nam, "%e", NULL, errno); + else { +#ifdef TIOCSCTTY + ioctl(cttyfd, TIOCSCTTY, 0); +#endif + close(cttyfd); + } + /* check if we acquired the tty successfully */ + cttyfd = open("/dev/tty", O_RDWR); + if (cttyfd == -1) + zwarnnam(nam, "could not make %s my controlling tty, job control " + "disabled", *args, 0); + else + close(cttyfd); + + /* Clear mygrp so that acquire_pgrp() gets the new process group. + * (acquire_pgrp() is called from init_io()) */ + mypgrp = 0; init_io(); setsparam("TTY", ztrdup(ttystrname)); } |