summaryrefslogtreecommitdiffstats
path: root/man3/ftok.3
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--man3/ftok.313
1 files changed, 6 insertions, 7 deletions
diff --git a/man3/ftok.3 b/man3/ftok.3
index 3b7d8ec..258276c 100644
--- a/man3/ftok.3
+++ b/man3/ftok.3
@@ -7,7 +7,7 @@
.\" Changed data type of proj_id; minor fixes
.\" aeb: further fixes; added notes.
.\"
-.TH ftok 3 2023-07-20 "Linux man-pages 6.05.01"
+.TH ftok 3 2023-10-31 "Linux man-pages 6.7"
.SH NAME
ftok \- convert a pathname and a project identifier to a System V IPC key
.SH LIBRARY
@@ -17,7 +17,7 @@ Standard C library
.nf
.B #include <sys/ipc.h>
.fi
-.PP
+.P
.BI "key_t ftok(const char *" pathname ", int " proj_id );
.SH DESCRIPTION
The
@@ -34,7 +34,7 @@ type System V IPC key, suitable for use with
.BR semget (2),
or
.BR shmget (2).
-.PP
+.P
The resulting value is the same for all pathnames that
name the same file, when the same value of
.I proj_id
@@ -64,20 +64,19 @@ T{
.BR ftok ()
T} Thread safety MT-Safe
.TE
-.sp 1
.SH STANDARDS
POSIX.1-2008.
.SH HISTORY
POSIX.1-2001.
.SH NOTES
On some ancient systems, the prototype was:
-.PP
+.P
.in +4n
.EX
.BI "key_t ftok(char *" pathname ", char " proj_id );
.EE
.in
-.PP
+.P
Today,
.I proj_id
is an
@@ -88,7 +87,7 @@ Typical usage has an ASCII character
that is why the behavior is said to be undefined when
.I proj_id
is zero.
-.PP
+.P
Of course, no guarantee can be given that the resulting
.I key_t
is unique.