GNU/Linux man pages
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GNU/Linux |
CentOS 5.1 |
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tmpfile(3) |
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tmpfile − create a temporary file
#include <stdio.h>
FILE *tmpfile(void);
The tmpfile() function opens a unique temporary file in binary read/write (w+b) mode. The file will be automatically deleted when it is closed or the program terminates.
The tmpfile() function returns a stream descriptor, or NULL if a unique filename cannot be generated or the unique file cannot be opened. In the latter case, errno is set to indicate the error.
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EACCES |
Search permission denied for directory in file’s path prefix. | ||
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EEXIST |
Unable to generate a unique filename. | ||
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EINTR |
The call was interrupted by a signal. | ||
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EMFILE |
Too many file descriptors in use by the process. | ||
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ENFILE |
Too many files open in the system. | ||
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ENOSPC |
There was no room in the directory to add the new filename. | ||
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EROFS |
Read-only filesystem. |
SVr4, 4.3BSD, C89, C99, SUSv2, POSIX.1-2001.
An error message may be written to stdout if the stream cannot be opened.
The standard does not specify the directory that tmpfile() will use. Glibc will try the path prefix P_tmpdir defined in <stdio.h>, and if that fails the directory /tmp.
exit(3), mkstemp(3), mktemp(3), tempnam(3), tmpnam(3)
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tmpfile(3) | |