From 772f20abb0a3a0979c440114bf3a1cff5b3cef03 Mon Sep 17 00:00:00 2001 From: cvpcs Date: Wed, 2 Jun 2010 11:02:31 -0500 Subject: initial import of bash 4.1 --- support/printenv.c | 71 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 71 insertions(+) create mode 100644 support/printenv.c (limited to 'support/printenv.c') diff --git a/support/printenv.c b/support/printenv.c new file mode 100644 index 0000000..b45e4c7 --- /dev/null +++ b/support/printenv.c @@ -0,0 +1,71 @@ +/* printenv -- minimal clone of BSD printenv(1). + + usage: printenv [varname] + + Chet Ramey + chet@po.cwru.edu +*/ + +/* Copyright (C) 1997-2002 Free Software Foundation, Inc. + + This file is part of GNU Bash, the Bourne Again SHell. + + Bash is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + Bash 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 General Public License for more details. + + You should have received a copy of the GNU General Public License + along with Bash. If not, see . +*/ + +#if defined (HAVE_CONFIG_H) +# include +#endif + +#include "bashansi.h" + +extern char **environ; + +int +main (argc, argv) + int argc; + char **argv; +{ + register char **envp, *eval; + int len; + + argv++; + argc--; + + /* printenv */ + if (argc == 0) + { + for (envp = environ; *envp; envp++) + puts (*envp); + exit (0); + } + + /* printenv varname */ + len = strlen (*argv); + for (envp = environ; *envp; envp++) + { + if (**argv == **envp && strncmp (*envp, *argv, len) == 0) + { + eval = *envp + len; + /* If the environment variable doesn't have an `=', ignore it. */ + if (*eval == '=') + { + puts (eval + 1); + exit (0); + } + } + } + exit (1); +} + -- cgit v1.1