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(libc.info)System Configuration

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System Configuration Parameters
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   The functions and macros listed in this chapter give information
about configuration parameters of the operating system--for example,
capacity limits, presence of optional POSIX features, and the default
path for executable files (Note: String Parameters).

General Limits

Constants and functions that describe

various process-related limits that have one uniform value for any given machine.

System Options

Optional POSIX features.

Version Supported

Version numbers of POSIX.1 and POSIX.2.

Sysconf

Getting specific configuration values

of general limits and system options.

Minimums

Minimum values for general limits.

Limits for Files

Size limitations that pertain to individual files.

These can vary between file systems or even from file to file.

Options for Files

Optional features that some files may support.

File Minimums

Minimum values for file limits.

Pathconf

Getting the limit values for a particular file.

Utility Limits

Capacity limits of some POSIX.2 utility programs.

Utility Minimums

Minimum allowable values of those limits.

String Parameters

Getting the default search path.