Adding upstream version 5.1.upstream/5.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 159 insertions, 0 deletions

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+This file is test.def, from which is created test.c.
+It implements the builtin "test" in Bash.
+
+Copyright (C) 1987-2015 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/>.
+
+$PRODUCES test.c
+
+$BUILTIN test
+$FUNCTION test_builtin
+$SHORT_DOC test [expr]
+Evaluate conditional expression.
+
+Exits with a status of 0 (true) or 1 (false) depending on
+the evaluation of EXPR.  Expressions may be unary or binary.  Unary
+expressions are often used to examine the status of a file.  There
+are string operators and numeric comparison operators as well.
+
+The behavior of test depends on the number of arguments.  Read the
+bash manual page for the complete specification.
+
+File operators:
+
+  -a FILE        True if file exists.
+  -b FILE        True if file is block special.
+  -c FILE        True if file is character special.
+  -d FILE        True if file is a directory.
+  -e FILE        True if file exists.
+  -f FILE        True if file exists and is a regular file.
+  -g FILE        True if file is set-group-id.
+  -h FILE        True if file is a symbolic link.
+  -L FILE        True if file is a symbolic link.
+  -k FILE        True if file has its `sticky' bit set.
+  -p FILE        True if file is a named pipe.
+  -r FILE        True if file is readable by you.
+  -s FILE        True if file exists and is not empty.
+  -S FILE        True if file is a socket.
+  -t FD          True if FD is opened on a terminal.
+  -u FILE        True if the file is set-user-id.
+  -w FILE        True if the file is writable by you.
+  -x FILE        True if the file is executable by you.
+  -O FILE        True if the file is effectively owned by you.
+  -G FILE        True if the file is effectively owned by your group.
+  -N FILE        True if the file has been modified since it was last read.
+
+  FILE1 -nt FILE2  True if file1 is newer than file2 (according to
+                   modification date).
+
+  FILE1 -ot FILE2  True if file1 is older than file2.
+
+  FILE1 -ef FILE2  True if file1 is a hard link to file2.
+
+String operators:
+
+  -z STRING      True if string is empty.
+
+  -n STRING
+     STRING      True if string is not empty.
+
+  STRING1 = STRING2
+                 True if the strings are equal.
+  STRING1 != STRING2
+                 True if the strings are not equal.
+  STRING1 < STRING2
+                 True if STRING1 sorts before STRING2 lexicographically.
+  STRING1 > STRING2
+                 True if STRING1 sorts after STRING2 lexicographically.
+
+Other operators:
+
+  -o OPTION      True if the shell option OPTION is enabled.
+  -v VAR         True if the shell variable VAR is set.
+  -R VAR         True if the shell variable VAR is set and is a name
+                 reference.
+  ! EXPR         True if expr is false.
+  EXPR1 -a EXPR2 True if both expr1 AND expr2 are true.
+  EXPR1 -o EXPR2 True if either expr1 OR expr2 is true.
+
+  arg1 OP arg2   Arithmetic tests.  OP is one of -eq, -ne,
+                 -lt, -le, -gt, or -ge.
+
+Arithmetic binary operators return true if ARG1 is equal, not-equal,
+less-than, less-than-or-equal, greater-than, or greater-than-or-equal
+than ARG2.
+
+Exit Status:
+Returns success if EXPR evaluates to true; fails if EXPR evaluates to
+false or an invalid argument is given.
+$END
+
+$BUILTIN [
+$DOCNAME test_bracket
+$FUNCTION test_builtin
+$SHORT_DOC [ arg... ]
+Evaluate conditional expression.
+
+This is a synonym for the "test" builtin, but the last argument must
+be a literal `]', to match the opening `['.
+$END
+
+#include <config.h>
+
+#if defined (HAVE_UNISTD_H)
+#  ifdef _MINIX
+#    include <sys/types.h>
+#  endif
+#  include <unistd.h>
+#endif
+
+#include "../bashansi.h"
+#include "../bashintl.h"
+
+#include "../shell.h"
+#include "../execute_cmd.h"
+#include "../test.h"
+#include "common.h"
+
+/* TEST/[ builtin. */
+int
+test_builtin (list)
+     WORD_LIST *list;
+{
+  char **argv;
+  int argc, result;
+
+  /* We let Matthew Bradburn and Kevin Braunsdorf's code do the
+     actual test command.  So turn the list of args into an array
+     of strings, since that is what their code wants. */
+  if (list == 0)
+    {
+      if (this_command_name[0] == '[' && !this_command_name[1])
+	{
+	  builtin_error (_("missing `]'"));
+	  return (EX_BADUSAGE);
+	}
+
+      return (EXECUTION_FAILURE);
+    }
+
+  argv = make_builtin_argv  (list, &argc);
+  result = test_command (argc, argv);
+  free ((char *)argv);
+
+  return (result);
+}