Query: mktemp
OS: suse
Section: 3
Format: Original Unix Latex Style Formatted with HTML and a Horizontal Scroll Bar
MKTEMP(3) Linux Programmer's Manual MKTEMP(3)NAMEmktemp - make a unique temporary filenameSYNOPSIS#include <stdlib.h> char *mktemp(char *template); Feature Test Macro Requirements for glibc (see feature_test_macros(7)): mktemp(): _BSD_SOURCE || _SVID_SOURCE || _XOPEN_SOURCE >= 500DESCRIPTIONThe mktemp() function generates a unique temporary filename from template. The last six characters of template must be XXXXXX and these are replaced with a string that makes the filename unique. Since it will be modified, template must not be a string constant, but should be declared as a character array.RETURN VALUEThe mktemp() function always returns template. If a unique name was created, the last six bytes of template will have been modified in such a way that the resulting name is unique (i.e., does not exist already) If a unique name could not be created, template is made an empty string.ERRORSEINVAL The last six characters of template were not XXXXXX.CONFORMING TO4.3BSD, POSIX.1-2001. POSIX.1-2008 removes the specification of mktemp().NOTESThe prototype is in <unistd.h> for libc4, libc5, glibc1; glibc2 follows the Single Unix Specification and has the prototype in <stdlib.h>.BUGSNever use mktemp(). Some implementations follow 4.3BSD and replace XXXXXX by the current process ID and a single letter, so that at most 26 different names can be returned. Since on the one hand the names are easy to guess, and on the other hand there is a race between test- ing whether the name exists and opening the file, every use of mktemp() is a security risk. The race is avoided by mkstemp(3).SEE ALSOmkstemp(3), tempnam(3), tmpfile(3), tmpnam(3)COLOPHONThis page is part of release 3.25 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/.GNU2008-08-06 MKTEMP(3)
Related Man Pages |
---|
mkostemps(3) - centos |
mkstemps(3) - centos |
mkostemps(3) - suse |
mkstemps(3) - suse |
mktemp(3) - suse |
Similar Topics in the Unix Linux Community |
---|
Special characters getting replaced by &Pound in Unix Environment |
mktemp error |
Change unique file names into new unique filenames |
Creating a VMware template |