getenv.c File Reference

#include <sys/environ.h>

Include dependency graph for getenv.c:

Functions
char *	getenv (const char *name)
	Get the value of an environment variable.
char *	nextenv (const char *name)
	Get the name of the next environment variable.

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Function Documentation

char* getenv

(

const char *

name

)

Get the value of an environment variable.

Parameters:

name	Points to a string, which is the name of the variable.

Returns:

A pointer to a string containing the value. If the specified name cannot be found a null pointer will be returned.

References _NUTENVIRONMENT::env_value, findenv(), and NULL.

Referenced by MibRegisterSysVars().

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char* nextenv

(

const char *

name

)

Get the name of the next environment variable.

Parameters:

name	Points to a string, which is the name of the previous variable. If this pointer is NULL or points to an empty string, then the name of the first variable is returned.

Returns:

A pointer to a string containing the name of the next variable, or NULL if no more variables are available.

References _NUTENVIRONMENT::env_name, _NUTENVIRONMENT::env_next, findenv(), NULL, and nut_environ.

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