| //========= Copyright Valve Corporation ============// |
| #include "envvartools_public.h" |
| #include <stdlib.h> |
| |
| #if defined(_WIN32) |
| #include <windows.h> |
| |
| #undef GetEnvironmentVariable |
| #undef SetEnvironmentVariable |
| #endif |
| |
| |
| std::string GetEnvironmentVariable( const char *pchVarName ) |
| { |
| #if defined(_WIN32) |
| char rchValue[32767]; // max size for an env var on Windows |
| DWORD cChars = GetEnvironmentVariableA( pchVarName, rchValue, sizeof( rchValue ) ); |
| if( cChars == 0 ) |
| return ""; |
| else |
| return rchValue; |
| #elif defined(POSIX) |
| char *pchValue = getenv( pchVarName ); |
| if( pchValue ) |
| return pchValue; |
| else |
| return ""; |
| #else |
| #error "Unsupported Platform" |
| #endif |
| } |
| |
| |
| bool SetEnvironmentVariable( const char *pchVarName, const char *pchVarValue ) |
| { |
| #if defined(_WIN32) |
| return 0 != SetEnvironmentVariableA( pchVarName, pchVarValue ); |
| #elif defined(POSIX) |
| if( pchVarValue == NULL ) |
| return 0 == unsetenv( pchVarName ); |
| else |
| return 0 == setenv( pchVarName, pchVarValue, 1 ); |
| #else |
| #error "Unsupported Platform" |
| #endif |
| } |
