From c6ef89664b8c0d7aa85bddd5c7014aa6df82cbe7 Mon Sep 17 00:00:00 2001 From: tcsullivan Date: Sat, 17 Nov 2018 13:02:57 -0500 Subject: added pdclib, removed sash --- .../platform/example/functions/stdlib/getenv.c | 45 ++++++++++++++++++++++ 1 file changed, 45 insertions(+) create mode 100644 src/pdclib/platform/example/functions/stdlib/getenv.c (limited to 'src/pdclib/platform/example/functions/stdlib/getenv.c') diff --git a/src/pdclib/platform/example/functions/stdlib/getenv.c b/src/pdclib/platform/example/functions/stdlib/getenv.c new file mode 100644 index 0000000..72bbcd2 --- /dev/null +++ b/src/pdclib/platform/example/functions/stdlib/getenv.c @@ -0,0 +1,45 @@ +/* getenv( const char * ) + + This file is part of the Public Domain C Library (PDCLib). + Permission is granted to use, modify, and / or redistribute at will. +*/ + +/* This is an example implementation of getenv() fit for use with POSIX kernels. +*/ + +#include +#include + +#ifndef REGTEST + +extern char * * environ; + +char * getenv( const char * name ) +{ + size_t len = strlen( name ); + size_t index = 0; + while ( environ[ index ] != NULL ) + { + if ( strncmp( environ[ index ], name, len ) == 0 ) + { + return environ[ index ] + len + 1; + } + index++; + } + return NULL; +} + +#endif + +#ifdef TEST + +#include "_PDCLIB_test.h" + +int main( void ) +{ + TESTCASE( strcmp( getenv( "SHELL" ), "/bin/bash" ) == 0 ); + /* TESTCASE( strcmp( getenv( "SHELL" ), "/bin/sh" ) == 0 ); */ + return TEST_RESULTS; +} + +#endif -- cgit v1.2.3