intro.2 (2010 09)

intro(2) intro(2)

NAME

intro - introduction to system calls

DESCRIPTION

This section describes all of the system calls. All of these calls return a function result. This result indi-

cates the status of the call. Typically, a zero or positive result indicates that the call completed success-

fully, and −1 indicates an error. The individual descriptions specify the details. An error number is also

made available in the external variable

errno (see errno (2)). Note:

errno is not cleared on success-

ful calls. Therefore, it should be tested only after an error has been indicated.

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intro(2) intro(2) NAME intro - introduction to system calls DESCRIPTION This section describes all of the system calls. All of these calls return a function result. This result indicates the status of the call. Typically, a zero or positive result indicates that the call completed successfully, and −1 indicates an error. The individual descriptions specify the details. An error number is also made available in the external variable errno (see errno (2)). Note: errno is not cleared on successful calls.
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(Notes) (Notes) A A 2 Hewlett-Packard Company −1− HP-UX 11i Version 3: September 2010