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Diffstat (limited to 'newlib/libc/sys/rdos/getenv.c')
-rw-r--r-- | newlib/libc/sys/rdos/getenv.c | 83 |
1 files changed, 0 insertions, 83 deletions
diff --git a/newlib/libc/sys/rdos/getenv.c b/newlib/libc/sys/rdos/getenv.c deleted file mode 100644 index 933ea4d76..000000000 --- a/newlib/libc/sys/rdos/getenv.c +++ /dev/null @@ -1,83 +0,0 @@ -/*####################################################################### -# RDOS operating system -# Copyright (C) 1988-2006, Leif Ekblad -# -# This library is free software; you can redistribute it and/or modify -# it under the terms of the GNU Lesser General Public License as published -# by the Free Software Foundation; either version 2.1 of the License, or -# (at your option) any later version. -# -# This library is distributed in the hope that it will be useful, -# but WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -# GNU Lesser General Public License for more details. -# -# You should have received a copy of the GNU Lesser General Public -# License along with this library; if not, write to the Free Software -# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA -# -# The author of this program may be contacted at leif@rdos.net -# -# getenv.c -# getenv function implementation -# -##########################################################################*/ - -/* -FUNCTION -<<getenv>>---look up environment variable - -INDEX - getenv -INDEX - environ - -ANSI_SYNOPSIS - #include <stdlib.h> - char *getenv(const char *<[name]>); - -TRAD_SYNOPSIS - #include <stdlib.h> - char *getenv(<[name]>) - char *<[name]>; - -DESCRIPTION -<<getenv>> searches the list of environment variable names and values -(using the global pointer ``<<char **environ>>'') for a variable whose -name matches the string at <[name]>. If a variable name matches, -<<getenv>> returns a pointer to the associated value. - -RETURNS -A pointer to the (string) value of the environment variable, or -<<NULL>> if there is no such environment variable. - -PORTABILITY -<<getenv>> is ANSI, but the rules for properly forming names of environment -variables vary from one system to another. - -This function is not thread-safe, but does it need to be?? -There is an reentrant class that should be used if reentrance is required - -*/ - -#include <stdlib.h> -#include <stddef.h> -#include <string.h> -#include <rdos.h> - -static char envbuf[256]; - -char *getenv(const char *name) -{ - int handle; - char *ptr = 0; - - handle = RdosOpenSysEnv(); - if (handle) - { - if (RdosFindEnvVar(handle, name, envbuf)) - ptr = envbuf; - } - RdosCloseEnv(handle); - return ptr; -} |