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Standard Input & Output (STDIO) limits the number of file descriptors to 256 in a 32-bit application. (Doc ID 1018889.1)

Last updated on JUNE 13, 2023

Applies to:

Solaris Operating System - Version 8.0 and later
All Platforms


Even when the file descriptor limit is set beyond 256 (i.e. via limit or ulimit on the shell), the maximum number of file pointers that can be opened
by STDIO functions (for instance fopen(), fdopen(), and popen()) is still limited to 256 in a 32-bit application.

File descriptor numbers range from 0 to 255.


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