projects / unix-history / blame
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1 | .\" Copyright (c) 1980 The Regents of the University of California. |
| 2 | .\" All rights reserved. | |
| 3 | .\" | |
| 91cff1e1 | 4 | .\" %sccs.include.redist.man% |
| 96750fe6 | 5 | .\" |
| 91cff1e1 | 6 | .\" @(#)setreuid.2 6.3 (Berkeley) %G% |
| 96750fe6 | 7 | .\" |
| 5abf252e | 8 | .TH SETREUID 2 "" |
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9 | .UC 4 |
| 10 | .SH NAME | |
| 085d7c51 | 11 | setreuid \- set real and effective user ID's |
| 96750fe6 | 12 | .SH SYNOPSIS |
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13 | .ft B |
| 14 | .nf | |
| 15 | setreuid(ruid, euid) | |
| 16 | int ruid, euid; | |
| 17 | .fi | |
| 18 | .ft R | |
| 96750fe6 | 19 | .SH DESCRIPTION |
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20 | The real and effective user ID's of the |
| 21 | current process are set according to the arguments. | |
| 22 | If | |
| 23 | .I ruid | |
| 24 | or | |
| 25 | .I euid | |
| 26 | is \-1, the current uid is filled in by the system. | |
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27 | Unprivileged users may change the real user |
| 28 | ID to the effective user ID and vice-versa; only the super-user may | |
| 29 | make other changes. | |
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30 | .SH "RETURN VALUE |
| 31 | Upon successful completion, a value of 0 is returned. Otherwise, | |
| 32 | a value of \-1 is returned and \fIerrno\fP is set to indicate the error. | |
| 33 | .SH "ERRORS | |
| 34 | .TP 15 | |
| 35 | [EPERM] | |
| 36 | The current process is not the super-user and a change | |
| 37 | other than changing the effective user-id to the real user-id | |
| 38 | was specified. | |
| 96750fe6 | 39 | .SH "SEE ALSO" |
| 085d7c51 | 40 | getuid(2), setregid(2), setuid(3) |