projects / thirdparty / man-pages.git / blame
| Commit | Line | Data |
|---|---|---|
| bf5a7247 | 1 | .\" Copyright (c) 1993 by Thomas Koenig (ig25@rz.uni-karlsruhe.de) |
| fea681da | 2 | .\" |
| 93015253 | 3 | .\" %%%LICENSE_START(VERBATIM) |
| fea681da MK |
4 | .\" Permission is granted to make and distribute verbatim copies of this |
| 5 | .\" manual provided the copyright notice and this permission notice are | |
| 6 | .\" preserved on all copies. | |
| 7 | .\" | |
| 8 | .\" Permission is granted to copy and distribute modified versions of this | |
| 9 | .\" manual under the conditions for verbatim copying, provided that the | |
| 10 | .\" entire resulting derived work is distributed under the terms of a | |
| 11 | .\" permission notice identical to this one. | |
| c13182ef | 12 | .\" |
| fea681da MK |
13 | .\" Since the Linux kernel and libraries are constantly changing, this |
| 14 | .\" manual page may be incorrect or out-of-date. The author(s) assume no | |
| 15 | .\" responsibility for errors or omissions, or for damages resulting from | |
| 16 | .\" the use of the information contained herein. The author(s) may not | |
| 17 | .\" have taken the same level of care in the production of this manual, | |
| 18 | .\" which is licensed free of charge, as they might when working | |
| 19 | .\" professionally. | |
| c13182ef | 20 | .\" |
| fea681da MK |
21 | .\" Formatted or processed versions of this manual, if unaccompanied by |
| 22 | .\" the source, must acknowledge the copyright and authors of this work. | |
| 4b72fb64 | 23 | .\" %%%LICENSE_END |
| c08df37a | 24 | .\" |
| fea681da | 25 | .\" Modified Sat Jul 24 19:51:06 1993 by Rik Faith (faith@cs.unc.edu) |
| 9ba01802 | 26 | .TH CTERMID 3 2019-03-06 "GNU" "Linux Programmer's Manual" |
| fea681da MK |
27 | .SH NAME |
| 28 | ctermid \- get controlling terminal name | |
| 29 | .SH SYNOPSIS | |
| 30 | .nf | |
| 31 | .B #include <stdio.h> | |
| b5a476b0 MK |
32 | .\" POSIX also requires this function to be declared in <unistd.h>, |
| 33 | .\" and glibc does so if suitable feature test macros are defined. | |
| 68e4db0a | 34 | .PP |
| fea681da MK |
35 | .BI "char *ctermid(char *" "s" ); |
| 36 | .fi | |
| 68e4db0a | 37 | .PP |
| cc4615cc MK |
38 | .in -4n |
| 39 | Feature Test Macro Requirements for glibc (see | |
| 40 | .BR feature_test_macros (7)): | |
| 41 | .in | |
| 68e4db0a | 42 | .PP |
| cc4615cc | 43 | .BR ctermid (): |
| cff459de | 44 | _POSIX_C_SOURCE |
| fea681da | 45 | .SH DESCRIPTION |
| 63aa9df0 | 46 | .BR ctermid () |
| c13182ef MK |
47 | returns a string which is the pathname for the current |
| 48 | controlling terminal for this process. | |
| fea681da MK |
49 | If |
| 50 | .I s | |
| 8478ee02 | 51 | is NULL, |
| fea681da MK |
52 | a static buffer is used, otherwise |
| 53 | .I s | |
| 54 | points to a buffer used to hold the terminal pathname. | |
| 55 | The symbolic constant | |
| 56 | .B L_ctermid | |
| 57 | is the maximum number of characters in the returned pathname. | |
| 47297adb | 58 | .SH RETURN VALUE |
| fea681da | 59 | The pointer to the pathname. |
| d768f1d9 | 60 | .SH ATTRIBUTES |
| 93f0f908 PH |
61 | For an explanation of the terms used in this section, see |
| 62 | .BR attributes (7). | |
| 63 | .TS | |
| 64 | allbox; | |
| 65 | lb lb lb | |
| 66 | l l l. | |
| 67 | Interface Attribute Value | |
| 68 | T{ | |
| d768f1d9 | 69 | .BR ctermid () |
| d35f48a3 | 70 | T} Thread safety MT-Safe |
| 93f0f908 | 71 | .TE |
| 47297adb | 72 | .SH CONFORMING TO |
| 20379f08 | 73 | POSIX.1-2001, POSIX.1-2008, Svr4. |
| fea681da | 74 | .SH BUGS |
| 590ba7e5 | 75 | The returned pathname may not uniquely identify the controlling |
| fea681da | 76 | terminal; it may, for example, be |
| 8478ee02 | 77 | .IR /dev/tty . |
| fea681da MK |
78 | .PP |
| 79 | It is not assured that the program can open the terminal. | |
| f2665a55 | 80 | .\" in glibc 2.3.x, x >= 4, the glibc headers threw an error |
| 3f1c1b0a | 81 | .\" if ctermid() was given an argument; fixed in 2.4. |
| 47297adb | 82 | .SH SEE ALSO |
| fea681da | 83 | .BR ttyname (3) |