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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:38:56 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:38:56 +0000 |
commit | 6c20c8ed2cb9ab69a1a57ccb2b9b79969a808321 (patch) | |
tree | f63ce19d57fad3ac4a15bc26dbfbfa2b834111b5 /support/printenv.c | |
parent | Initial commit. (diff) | |
download | bash-6c20c8ed2cb9ab69a1a57ccb2b9b79969a808321.tar.xz bash-6c20c8ed2cb9ab69a1a57ccb2b9b79969a808321.zip |
Adding upstream version 5.2.15.upstream/5.2.15upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | support/printenv.c | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/support/printenv.c b/support/printenv.c new file mode 100644 index 0000000..154e086 --- /dev/null +++ b/support/printenv.c @@ -0,0 +1,72 @@ +/* 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 <http://www.gnu.org/licenses/>. +*/ + +#if defined (HAVE_CONFIG_H) +# include <config.h> +#endif + +#include "bashansi.h" +#include <stdio.h> /* puts */ + +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); +} + |