projects / unix-history / blame
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1 | .\" Copyright (c) 1980 Regents of the University of California. |
| 2 | .\" All rights reserved. The Berkeley software License Agreement | |
| 3 | .\" specifies the terms and conditions for redistribution. | |
| 4 | .\" | |
| 9c9177ce | 5 | .\" @(#)getuid.2 6.1 (Berkeley) %G% |
| 42a92ee6 | 6 | .\" |
| 9c9177ce | 7 | .TH GETUID 2 "" |
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8 | .UC 4 |
| 9 | .SH NAME | |
| 6db89aec | 10 | getuid, geteuid \- get user identity |
| 42a92ee6 | 11 | .SH SYNOPSIS |
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12 | .ft B |
| 13 | .nf | |
| 14 | uid = getuid() | |
| 15 | int uid; | |
| 42a92ee6 | 16 | .PP |
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17 | .ft B |
| 18 | euid = geteuid() | |
| 19 | int euid; | |
| 20 | .fi | |
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21 | .SH DESCRIPTION |
| 22 | .I Getuid | |
| 23 | returns the real user ID of the current process, | |
| 24 | .I geteuid | |
| 25 | the effective user ID. | |
| 42a92ee6 | 26 | .PP |
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27 | The real user ID identifies the person who is logged in. |
| 28 | The effective user ID | |
| 29 | gives the process additional permissions during | |
| 30 | execution of \*(lqset-user-ID\*(rq mode processes, which use | |
| 31 | \fIgetuid\fP to determine the real-user-id of the process which | |
| 32 | invoked them. | |
| 42a92ee6 | 33 | .SH "SEE ALSO" |
| 6db89aec | 34 | getgid(2), setreuid(2) |