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getenv(3C)

HP-UX 11i Version 3: February 2007
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NAME

getenv() — return value for environment name

SYNOPSIS

#include <stdlib.h>

char *getenv(const char *name);

DESCRIPTION

getenv() searches the environment list (see environ(5)) for a string of the form name=value, and returns a pointer to the value in the current environment if such a string is present, otherwise a NULL pointer. name can be either the desired name, null-terminated, or of the form name=value, in which case getenv() uses the portion to the left of the = as the search key.

WARNINGS

getenv() returns a pointer to static data which can be overwritten by subsequent calls.

EXTERNAL INFLUENCES

Locale

The LC_CTYPE category determines the interpretation of characters in name as single- and/or multi-byte characters.

International Code Set Support

Single- and multi-byte character code sets are supported.

STANDARDS CONFORMANCE

getenv(): AES, SVID2, SVID3, XPG2, XPG3, XPG4, FIPS 151-2, POSIX.1, POSIX.2, ANSI C

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