getenv(3C) getenv(3C)
NAME
getenv() - return value for environment name
SYNOPSIS
DESCRIPTION
searches the environment list (see environ(5)) for a string of the form and returns a pointer to the value in the current environment if
such a string is present or a NULL pointer if it is not. name can be either the desired name, null-terminated, or of the form in which
case uses the portion to the left of the as the search key.
If the optional HP Getenv-Perf-Enh product is installed on the system, the performance of in threaded applications may increase.
WARNINGS
returns a pointer to static data which can be overwritten by subsequent calls.
EXTERNAL INFLUENCES
Locale
The category determines the interpretation of characters in name as single and/or multibyte characters.
International Code Set Support
Single and multibyte character code sets are supported.
SEE ALSO
exec(2), putenv(3C), environ(5), thread_safety(5).
STANDARDS CONFORMANCE
getenv(3C)
