projects / thirdparty / man-pages.git / blame
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1 | .\" Copyright 1993 David Metcalfe (david@prism.demon.co.uk) |
| 2 | .\" | |
| 3 | .\" Permission is granted to make and distribute verbatim copies of this | |
| 4 | .\" manual provided the copyright notice and this permission notice are | |
| 5 | .\" preserved on all copies. | |
| 6 | .\" | |
| 7 | .\" Permission is granted to copy and distribute modified versions of this | |
| 8 | .\" manual under the conditions for verbatim copying, provided that the | |
| 9 | .\" entire resulting derived work is distributed under the terms of a | |
| 10 | .\" permission notice identical to this one. | |
| c13182ef | 11 | .\" |
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12 | .\" Since the Linux kernel and libraries are constantly changing, this |
| 13 | .\" manual page may be incorrect or out-of-date. The author(s) assume no | |
| 14 | .\" responsibility for errors or omissions, or for damages resulting from | |
| 15 | .\" the use of the information contained herein. The author(s) may not | |
| 16 | .\" have taken the same level of care in the production of this manual, | |
| 17 | .\" which is licensed free of charge, as they might when working | |
| 18 | .\" professionally. | |
| c13182ef | 19 | .\" |
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20 | .\" Formatted or processed versions of this manual, if unaccompanied by |
| 21 | .\" the source, must acknowledge the copyright and authors of this work. | |
| 22 | .\" | |
| 23 | .\" References consulted: | |
| 24 | .\" Linux libc source code | |
| 25 | .\" Lewine's _POSIX Programmer's Guide_ (O'Reilly & Associates, 1991) | |
| 26 | .\" 386BSD man pages | |
| 27 | .\" Modified Sat Jul 24 17:46:57 1993 by Rik Faith (faith@cs.unc.edu) | |
| 28 | .\" Modified 2001-11-17, aeb | |
| 29 | .TH TMPFILE 3 2001-11-17 "" "Linux Programmer's Manual" | |
| 30 | .SH NAME | |
| 31 | tmpfile \- create a temporary file | |
| 32 | .SH SYNOPSIS | |
| 33 | .nf | |
| 34 | .B #include <stdio.h> | |
| 35 | .sp | |
| 18a2cc04 | 36 | .B FILE *tmpfile(void); |
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37 | .fi |
| 38 | .SH DESCRIPTION | |
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39 | The \fBtmpfile\fP() function opens a unique temporary file |
| 40 | in binary read/write (w+b) mode. | |
| fea681da | 41 | The file will be automatically deleted when it is closed or the |
| af8d55f9 | 42 | program terminates. |
| fea681da | 43 | .SH "RETURN VALUE" |
| 63aa9df0 | 44 | The \fBtmpfile\fP() function returns a stream descriptor, or NULL if |
| fea681da | 45 | a unique filename cannot be generated or the unique file cannot be |
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46 | opened. |
| 47 | In the latter case, \fIerrno\fP is set to indicate the error. | |
| fea681da | 48 | .SH ERRORS |
| c13182ef | 49 | .TP |
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50 | .B EACCES |
| 51 | Search permission denied for directory in file's path prefix. | |
| 52 | .TP | |
| 53 | .B EEXIST | |
| 54 | Unable to generate a unique filename. | |
| 55 | .TP | |
| 56 | .B EINTR | |
| 57 | The call was interrupted by a signal. | |
| 58 | .TP | |
| 59 | .B EMFILE | |
| 60 | Too many file descriptors in use by the process. | |
| 61 | .TP | |
| 62 | .B ENFILE | |
| 63 | Too many files open in the system. | |
| 64 | .TP | |
| 65 | .B ENOSPC | |
| 66 | There was no room in the directory to add the new filename. | |
| 67 | .TP | |
| 68 | .B EROFS | |
| 69 | Read-only filesystem. | |
| 70 | .SH "CONFORMING TO" | |
| 68e1685c | 71 | SVr4, 4.3BSD, C89, C99, SUSv2, POSIX.1-2001. |
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72 | .SH NOTES |
| 73 | An error message may be written to \fIstdout\fP if the stream | |
| 74 | cannot be opened. | |
| 75 | .LP | |
| 63aa9df0 | 76 | The standard does not specify the directory that \fItmpfile\fP() |
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77 | will use. |
| 78 | Glibc will try the path prefix \fIP_tmpdir\fP defined | |
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79 | in \fI<stdio.h>\fP, and if that fails the directory \fI/tmp\fP. |
| 80 | .SH "SEE ALSO" | |
| 81 | .BR exit (3), | |
| 82 | .BR mkstemp (3), | |
| 83 | .BR mktemp (3), | |
| 84 | .BR tempnam (3), | |
| 85 | .BR tmpnam (3) |