projects / thirdparty / man-pages.git / blame
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1 | .\" Hey Emacs! This file is -*- nroff -*- source. |
| 2 | .\" | |
| 3 | .\" Copyright (C) 1996 Andries Brouwer (aeb@cwi.nl) | |
| 4 | .\" | |
| 5 | .\" Permission is granted to make and distribute verbatim copies of this | |
| 6 | .\" manual provided the copyright notice and this permission notice are | |
| 7 | .\" preserved on all copies. | |
| 8 | .\" | |
| 9 | .\" Permission is granted to copy and distribute modified versions of this | |
| 10 | .\" manual under the conditions for verbatim copying, provided that the | |
| 11 | .\" entire resulting derived work is distributed under the terms of a | |
| 12 | .\" permission notice identical to this one. | |
| 13 | .\" | |
| 14 | .\" Since the Linux kernel and libraries are constantly changing, this | |
| 15 | .\" manual page may be incorrect or out-of-date. The author(s) assume no | |
| 16 | .\" responsibility for errors or omissions, or for damages resulting from | |
| 17 | .\" the use of the information contained herein. The author(s) may not | |
| 18 | .\" have taken the same level of care in the production of this manual, | |
| 19 | .\" which is licensed free of charge, as they might when working | |
| 20 | .\" professionally. | |
| 21 | .\" | |
| 22 | .\" Formatted or processed versions of this manual, if unaccompanied by | |
| 23 | .\" the source, must acknowledge the copyright and authors of this work. | |
| 24 | .\" | |
| 25 | .\" Moved to man3, aeb, 980612 | |
| 26 | .\" | |
| 27 | .TH ULIMIT 3 1998-06-12 "Linux 2.0" "Linux Programmer's Manual" | |
| 28 | .SH NAME | |
| 29 | ulimit \- get and set user limits | |
| 30 | .SH SYNOPSIS | |
| 31 | .B #include <ulimit.h> | |
| 32 | .sp | |
| 33 | .BI "long ulimit(int " cmd ", long " newlimit ); | |
| 34 | .SH DESCRIPTION | |
| 35 | Warning: This routine is obsolete. The include file is no longer | |
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36 | provided by glibc. Use |
| 37 | .BR getrlimit (2), | |
| 38 | .BR setrlimit (2) | |
| 39 | and | |
| 40 | .BR sysconf (3) | |
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41 | instead. |
| 42 | For the shell command | |
| e511ffb6 | 43 | .BR ulimit (), |
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44 | see |
| 45 | .BR bash (1). | |
| 46 | ||
| 47 | The | |
| e511ffb6 | 48 | .BR ulimit () |
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49 | call will get or set some limit for the current process. |
| 50 | The | |
| 51 | .I cmd | |
| 52 | argument can have one of the following values. | |
| 53 | .TP | |
| 54 | .B UL_GETFSIZE | |
| 55 | Return the limit on the size of a file, in units of 512 bytes. | |
| 56 | .TP | |
| 57 | .B UL_SETFSIZE | |
| 58 | Set the limit on the size of a file. | |
| 59 | .TP | |
| 60 | .B 3 | |
| 61 | (Not implemented for Linux.) | |
| 62 | Return the maximum possible address of the data segment. | |
| 63 | .TP | |
| 64 | .B 4 | |
| 65 | (Implemented but no symbolic constant provided.) | |
| 66 | Return the maximum number of files that the calling process can open. | |
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67 | .SH "RETURN VALUE" |
| 68 | On success, | |
| e511ffb6 | 69 | .BR ulimit () |
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70 | returns a nonnegative value. |
| 71 | On error, \-1 is returned, and | |
| 72 | .I errno | |
| 73 | is set appropriately. | |
| 74 | .SH ERRORS | |
| 75 | .TP | |
| 76 | .B EPERM | |
| 77 | A non-root process tried to increase a limit. | |
| 78 | .SH "CONFORMING TO" | |
| 68e1685c | 79 | SVr4, POSIX.1-2001. |
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80 | .SH "SEE ALSO" |
| 81 | .BR bash (1), | |
| 82 | .BR getrlimit (2), | |
| 83 | .BR setrlimit (2), | |
| 84 | .BR sysconf (3) |