projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| c334d3e6 KM |
1 | .\" Copyright (c) 1989 The Regents of the University of California. |
| 2 | .\" All rights reserved. | |
| 3 | .\" | |
| 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 | .\" @(#)chflags.2 6.1 (Berkeley) %G% | |
| 17 | .\" | |
| 18 | .TH CHFALGS 2 "" | |
| 19 | .UC 7 | |
| 20 | .SH NAME | |
| 21 | chflags, fchflags \- set file flags | |
| 22 | .SH SYNOPSIS | |
| 23 | .nf | |
| 24 | .ft B | |
| 25 | chflags(path, flags) | |
| 26 | char *path; | |
| 27 | long flags; | |
| 28 | .LP | |
| 29 | .ft B | |
| 30 | fchflags(fd, flags) | |
| 31 | int fd; | |
| 32 | long flags; | |
| 33 | .fi | |
| 34 | .ft R | |
| 35 | .SH DESCRIPTION | |
| 36 | The file whose name | |
| 37 | is given by \fIpath\fP | |
| 38 | or referenced by the descriptor | |
| 39 | .I fd | |
| 40 | has its flags changed to | |
| 41 | .IR flags . | |
| 42 | .PP | |
| 43 | Only the owner of a file (or the super-user) may change the flags. | |
| 44 | The owner may only change the lower 16 bits of the flags; | |
| 45 | the super-user may change all 32 bits of the flags. | |
| 46 | .SH RETURN VALUE | |
| 47 | Upon successful completion, a value of 0 is returned. | |
| 48 | Otherwise, \-1 is returned and the global variable | |
| 49 | .I errno | |
| 50 | is set to indicate the error. | |
| 51 | .SH ERRORS | |
| 52 | .I Chflags | |
| 53 | fails if one or more of the following are true: | |
| 54 | .TP 15 | |
| 55 | [ENOTDIR] | |
| 56 | A component of the path prefix is not a directory. | |
| 57 | .TP 15 | |
| 58 | [EINVAL] | |
| 59 | The pathname contains a character with the high-order bit set. | |
| 60 | .TP 15 | |
| 61 | [ENAMETOOLONG] | |
| 62 | A component of a pathname exceeded 255 characters, | |
| 63 | or an entire path name exceeded 1023 characters. | |
| 64 | .TP 15 | |
| 65 | [ENOENT] | |
| 66 | The named file does not exist. | |
| 67 | .TP 15 | |
| 68 | [EACCES] | |
| 69 | Search permission is denied for a component of the path prefix. | |
| 70 | .TP 15 | |
| 71 | [ELOOP] | |
| 72 | Too many symbolic links were encountered in translating the pathname. | |
| 73 | .TP 15 | |
| 74 | [EPERM] | |
| 75 | The effective user ID does not match the owner of the file and | |
| 76 | the effective user ID is not the super-user. | |
| 77 | .TP 15 | |
| 78 | [EROFS] | |
| 79 | The named file resides on a read-only file system. | |
| 80 | .TP 15 | |
| 81 | [EFAULT] | |
| 82 | .I Path | |
| 83 | points outside the process's allocated address space. | |
| 84 | .TP 15 | |
| 85 | [EIO] | |
| 86 | An I/O error occurred while reading from or writing to the file system. | |
| 87 | .PP | |
| 88 | .I Fchmod | |
| 89 | will fail if: | |
| 90 | .TP 15 | |
| 91 | [EBADF] | |
| 92 | The descriptor is not valid. | |
| 93 | .TP 15 | |
| 94 | [EINVAL] | |
| 95 | .I Fd | |
| 96 | refers to a socket, not to a file. | |
| 97 | .TP 15 | |
| 98 | [EPERM] | |
| 99 | The effective user ID does not match the owner of the file and | |
| 100 | the effective user ID is not the super-user. | |
| 101 | .TP 15 | |
| 102 | [EROFS] | |
| 103 | The file resides on a read-only file system. | |
| 104 | .TP 15 | |
| 105 | [EIO] | |
| 106 | An I/O error occurred while reading from or writing to the file system. | |
| 107 | .SH "SEE ALSO" | |
| 108 | chmod(2), open(2), chown(2), stat(2) |