outs for programs using alternae memory allocators:

[unix-history] / usr / src / lib / libc / stdio / mktemp.3

diff --git a/usr/src/lib/libc/stdio/mktemp.3 b/usr/src/lib/libc/stdio/mktemp.3
index 3d411e5..9f1b86c 100644 (file)
--- a/usr/src/lib/libc/stdio/mktemp.3
+++ b/usr/src/lib/libc/stdio/mktemp.3
@@ -1,6 +1,6 @@
-.\"    @(#)mktemp.3    5.1 (Berkeley) %G%
+.\"    @(#)mktemp.3    6.1 (Berkeley) %G%

 .\"
 .\"

-.TH MKTEMP 3  "19 January 1983"
+.TH MKTEMP 3  ""

 .AT 3
 .SH NAME
 mktemp \- make a unique file name
 .AT 3
 .SH NAME
 mktemp \- make a unique file name


@@ -8,6 +8,9 @@ mktemp \- make a unique file name
 .nf
 .B char *mktemp(template)
 .B char *template;
 .nf
 .B char *mktemp(template)
 .B char *template;

+.sp
+.B mkstemp(template)
+.B char *template;

 .fi
 .SH DESCRIPTION
 .I Mktemp
 .fi
 .SH DESCRIPTION
 .I Mktemp


@@ -18,5 +21,11 @@ address of the template.
 The template should look like a file name with six trailing
 X's, which will be replaced with the
 current process id and a unique letter.
 The template should look like a file name with six trailing
 X's, which will be replaced with the
 current process id and a unique letter.

+.I Mkstemp
+makes the same replacement to the template but returns an open file descriptor
+for the template file suitable for reading or writing.
+.I Mkstemp
+avoids the potential race between the creation of the unique
+file name and its being opened for use.

 .SH "SEE ALSO"
 getpid(2)
 .SH "SEE ALSO"
 getpid(2)