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author | pst <pst@FreeBSD.org> | 1995-02-25 20:15:20 +0000 |
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committer | pst <pst@FreeBSD.org> | 1995-02-25 20:15:20 +0000 |
commit | 1b90b06e68e644a5e3f56d8d16bd19260faab80f (patch) | |
tree | 037d19b5b07077fa284dd043d658f5c1d6e281b1 /share/man/man4/snp.4 | |
parent | 309dab67e72a522777126250a606d6d0cc24bee3 (diff) | |
download | FreeBSD-src-1b90b06e68e644a5e3f56d8d16bd19260faab80f.zip FreeBSD-src-1b90b06e68e644a5e3f56d8d16bd19260faab80f.tar.gz |
Update to reflect new calling conventions
Diffstat (limited to 'share/man/man4/snp.4')
-rw-r--r-- | share/man/man4/snp.4 | 30 |
1 files changed, 10 insertions, 20 deletions
diff --git a/share/man/man4/snp.4 b/share/man/man4/snp.4 index 8fa927f..ce1f4b4 100644 --- a/share/man/man4/snp.4 +++ b/share/man/man4/snp.4 @@ -1,7 +1,8 @@ .\" -.\" @(#)snp.4 1.1 (FreeBSD) 2/17/95 +.\" $Id$ +.\" $Source$ .\" -.Dd February 17, 1995 +.Dd February 24, 1995 .Dt SNP 4 .Os FreeBSD .Sh NAME @@ -11,11 +12,11 @@ .Fd #include <sys/ioctl.h> .Fd #include <sys/snoop.h> .Ft int -.Fn ioctl fd SNPSTTY &snptty +.Fn ioctl fd SNPSTTY &dev .Ft int -.Fn ioctl fd SNPGTTY &snptty +.Fn ioctl fd SNPGTTY &dev .Ft int -.Fn ioctl fd FIONREAD 0 +.Fn ioctl fd FIONREAD &result .Sh DESCRIPTION /dev/snp? are snoop devices which allow user to attach to any tty and watch activities on it. @@ -25,21 +26,10 @@ To associate a given device with a tty to be observed, open the .Nm snp device and then use the SNPSTTY ioctl. -The argument passed to the IOCTL is the address of a structure of -the following type: -.Bd -literal -ffset indent -struct snptty { - int st_unit; /* number of the tty unit */ - int st_type; /* type of the tty to attach */ -#define ST_PTY 0 /* regular pty */ -#define ST_VTY 1 /* syscons vty */ -#define ST_SIO 2 /* serial lines */ -} - -.Ed -.Pp -By setting st_type or st_unit to -1, the user may detach the snp device -for a tty. +The argument passed to the IOCTL is the address of a variable of type +dev_t. +By setting the value of the variable pointed to to -1, the user may detach +the snp device from a tty. .Pp The SNPGTTY ioctl returns information about the current tty attached to the open |