projects / unix-history / blame
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1 | .\" Copyright (c) 1983 The Regents of the University of California. |
| 2 | .\" All rights reserved. | |
| 349834c5 | 3 | .\" |
| 88b3ccf2 KB |
4 | .\" Redistribution and use in source and binary forms are permitted |
| 5 | .\" provided that the above copyright notice and this paragraph are | |
| 6 | .\" duplicated in all such forms and that any documentation, | |
| 7 | .\" advertising materials, and other materials related to such | |
| 8 | .\" distribution and use acknowledge that the software was developed | |
| 9 | .\" by the University of California, Berkeley. The name of the | |
| 10 | .\" University may not be used to endorse or promote products derived | |
| 11 | .\" from this software without specific prior written permission. | |
| 12 | .\" THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR | |
| 13 | .\" IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED | |
| 14 | .\" WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. | |
| 15 | .\" | |
| 16 | .\" @(#)setgroups.2 6.5 (Berkeley) %G% | |
| 349834c5 | 17 | .\" |
| 10d611fe | 18 | .TH SETGROUPS 2 "" |
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19 | .UC 5 |
| 20 | .SH NAME | |
| 21 | setgroups \- set group access list | |
| 22 | .SH SYNOPSIS | |
| 23 | .nf | |
| 24 | .ft B | |
| 25 | #include <sys/param.h> | |
| 26 | .PP | |
| 27 | .ft B | |
| 28 | setgroups(ngroups, gidset) | |
| 29 | int ngroups, *gidset; | |
| 30 | .fi | |
| 31 | .SH DESCRIPTION | |
| 32 | .I Setgroups | |
| 33 | sets the group access list of the current user process | |
| 34 | according to the array | |
| 35 | .IR gidset . | |
| 36 | The parameter | |
| 37 | .I ngroups | |
| 38 | indicates the number of entries in the array and must be no | |
| 34517f62 | 39 | more than NGROUPS, as defined in |
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40 | .RI < sys/param.h >. |
| 41 | .PP | |
| 42 | Only the super-user may set new groups. | |
| 43 | .SH "RETURN VALUE | |
| 44 | A 0 value is returned on success, \-1 on error, with | |
| 45 | a error code stored in \fIerrno\fP. | |
| 46 | .SH "ERRORS | |
| 47 | The \fIsetgroups\fP call will fail if: | |
| 48 | .TP 15 | |
| 49 | [EPERM] | |
| 50 | The caller is not the super-user. | |
| 51 | .TP 15 | |
| 52 | [EFAULT] | |
| 53 | The address specified for \fIgidset\fP is outside the process | |
| 54 | address space. | |
| 55 | .SH "SEE ALSO | |
| a81bfa3e | 56 | getgroups(2), initgroups(3) |
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57 | .SH BUGS |
| 58 | The | |
| 59 | .I gidset | |
| 60 | array should be of type | |
| 61 | .BR gid_t , | |
| 62 | but remains integer for compatibility with earlier systems. |