diff options
Diffstat (limited to 'man3p/creat.3p')
-rw-r--r-- | man3p/creat.3p | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/man3p/creat.3p b/man3p/creat.3p new file mode 100644 index 000000000..9dbba7b5c --- /dev/null +++ b/man3p/creat.3p @@ -0,0 +1,95 @@ +.\" Copyright (c) 2001-2003 The Open Group, All Rights Reserved +.TH "CREAT" P 2003 "IEEE/The Open Group" "POSIX Programmer's Manual" +.\" creat +.SH NAME +creat \- create a new file or rewrite an existing one +.SH SYNOPSIS +.LP +\fB#include <sys/stat.h> \fP +\fB +.br +#include <fcntl.h> +.br +.sp +int creat(const char *\fP\fIpath\fP\fB, mode_t\fP \fImode\fP\fB); +.br +\fP +.SH DESCRIPTION +.LP +The function call: +.sp +.RS +.nf + +\fBcreat(path, mode) +\fP +.fi +.RE +.LP +shall be equivalent to: +.sp +.RS +.nf + +\fBopen(path, O_WRONLY|O_CREAT|O_TRUNC, mode) +\fP +.fi +.RE +.SH RETURN VALUE +.LP +Refer to \fIopen\fP() . +.SH ERRORS +.LP +Refer to \fIopen\fP() . +.LP +\fIThe following sections are informative.\fP +.SH EXAMPLES +.SS Creating a File +.LP +The following example creates the file \fB/tmp/file\fP with read and +write permissions for the file owner and read permission +for group and others. The resulting file descriptor is assigned to +the \fIfd\fP variable. +.sp +.RS +.nf + +\fB#include <fcntl.h> +\&... +int fd; +mode_t mode = S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH; +char *filename = "/tmp/file"; +\&... +fd = creat(filename, mode); +\&... +\fP +.fi +.RE +.SH APPLICATION USAGE +.LP +None. +.SH RATIONALE +.LP +The \fIcreat\fP() function is redundant. Its services are also provided +by the \fIopen\fP() function. It has been included primarily for historical +purposes since many existing +applications depend on it. It is best considered a part of the C binding +rather than a function that should be provided in other +languages. +.SH FUTURE DIRECTIONS +.LP +None. +.SH SEE ALSO +.LP +\fIopen\fP() , the Base Definitions volume of IEEE\ Std\ 1003.1-2001, +\fI<fcntl.h>\fP, \fI<sys/stat.h>\fP, \fI<sys/types.h>\fP +.SH COPYRIGHT +Portions of this text are reprinted and reproduced in electronic form +from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology +-- Portable Operating System Interface (POSIX), The Open Group Base +Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of +Electrical and Electronics Engineers, Inc and The Open Group. In the +event of any discrepancy between this version and the original IEEE and +The Open Group Standard, the original IEEE and The Open Group Standard +is the referee document. The original Standard can be obtained online at +http://www.opengroup.org/unix/online.html . |