mktemp(3)
Name
mktemp − make a unique file name
Syntax
char *mktemp(template)
char *template;
Description
The mktemp subroutine replaces template by a unique file name, and returns the address of the template. The template should look like a file name with six trailing X’s, which will be replaced with the current process ID and a unique letter.
Note: The use of mktemp is not recommended for new applications. See tmpnam() for less error-prone alternatives.