diff options
| author | Denis Vlasenko <vda.linux@googlemail.com> | 2007-12-10 07:06:04 +0000 |
|---|---|---|
| committer | Denis Vlasenko <vda.linux@googlemail.com> | 2007-12-10 07:06:04 +0000 |
| commit | 2afabe8b830cc8c33f5f1984767af4b8dc54803b (patch) | |
| tree | 2647f259f9584d874dca8a784af4dd87df6db57e /shell/cttyhack.c | |
| parent | 191836845e4551fe6191dc0d43b45a0232bff8be (diff) | |
| download | busybox-2afabe8b830cc8c33f5f1984767af4b8dc54803b.tar.gz | |
init: remove superfluous forks and messing up with argv[0]
cttyhack: add stealing of ctty
Diffstat (limited to 'shell/cttyhack.c')
| -rw-r--r-- | shell/cttyhack.c | 22 |
1 files changed, 13 insertions, 9 deletions
diff --git a/shell/cttyhack.c b/shell/cttyhack.c index cdd0ed1d6..915ab5142 100644 --- a/shell/cttyhack.c +++ b/shell/cttyhack.c @@ -1,16 +1,18 @@ -/* This code is adapted from busybox project - * +/* vi: set sw=4 ts=4: */ +/* * Licensed under GPLv2 + * + * Copyright (c) 2007 Denys Vlasenko <vda.linux@googlemail.com> */ #include "libbb.h" /* From <linux/vt.h> */ struct vt_stat { - unsigned short v_active; /* active vt */ - unsigned short v_signal; /* signal to send */ - unsigned short v_state; /* vt bitmask */ + unsigned short v_active; /* active vt */ + unsigned short v_signal; /* signal to send */ + unsigned short v_state; /* vt bitmask */ }; -enum { VT_GETSTATE = 0x5603 }; /* get global vt state info */ +enum { VT_GETSTATE = 0x5603 }; /* get global vt state info */ /* From <linux/serial.h> */ struct serial_struct { @@ -26,8 +28,8 @@ struct serial_struct { char io_type; char reserved_char[1]; int hub6; - unsigned short closing_wait; /* time to wait before closing */ - unsigned short closing_wait2; /* no longer used... */ + unsigned short closing_wait; /* time to wait before closing */ + unsigned short closing_wait2; /* no longer used... */ unsigned char *iomem_base; unsigned short iomem_reg_shift; unsigned int port_high; @@ -66,8 +68,10 @@ int cttyhack_main(int argc, char **argv) dup2(fd, 1); dup2(fd, 2); while (fd > 2) close(fd--); + /* Some other session may have it as ctty. Steal it from them */ + ioctl(0, TIOCSCTTY, 1) } - execvp(argv[0], argv); + BB_EXECVP(argv[0], argv); bb_perror_msg_and_die("cannot exec '%s'", argv[0]); } |