diff options
Diffstat (limited to 'man-pages-posix-2003/man3p/getuid.3p')
-rw-r--r-- | man-pages-posix-2003/man3p/getuid.3p | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/man-pages-posix-2003/man3p/getuid.3p b/man-pages-posix-2003/man3p/getuid.3p new file mode 100644 index 0000000..ff5b849 --- /dev/null +++ b/man-pages-posix-2003/man3p/getuid.3p @@ -0,0 +1,74 @@ +.\" Copyright (c) 2001-2003 The Open Group, All Rights Reserved +.TH "GETUID" 3P 2003 "IEEE/The Open Group" "POSIX Programmer's Manual" +.\" getuid +.SH PROLOG +This manual page is part of the POSIX Programmer's Manual. +The Linux implementation of this interface may differ (consult +the corresponding Linux manual page for details of Linux behavior), +or the interface may not be implemented on Linux. +.SH NAME +getuid \- get a real user ID +.SH SYNOPSIS +.LP +\fB#include <unistd.h> +.br +.sp +uid_t getuid(void); +.br +\fP +.SH DESCRIPTION +.LP +The \fIgetuid\fP() function shall return the real user ID of the calling +process. +.SH RETURN VALUE +.LP +The \fIgetuid\fP() function shall always be successful and no return +value is reserved to indicate the error. +.SH ERRORS +.LP +No errors are defined. +.LP +\fIThe following sections are informative.\fP +.SH EXAMPLES +.SS Setting the Effective User ID to the Real User ID +.LP +The following example sets the effective user ID and the real user +ID of the current process to the real user ID of the +caller. +.sp +.RS +.nf + +\fB#include <unistd.h> +#include <sys/types.h> +\&... +setreuid(getuid(), getuid()); +\&... +\fP +.fi +.RE +.SH APPLICATION USAGE +.LP +None. +.SH RATIONALE +.LP +None. +.SH FUTURE DIRECTIONS +.LP +None. +.SH SEE ALSO +.LP +\fIgetegid\fP(), \fIgeteuid\fP(), \fIgetgid\fP(), \fIsetegid\fP(), +\fIseteuid\fP(), \fIsetgid\fP(), \fIsetregid\fP(), \fIsetreuid\fP(), +\fIsetuid\fP(), the Base Definitions volume of +IEEE\ Std\ 1003.1-2001, \fI<sys/types.h>\fP, \fI<unistd.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 . |