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authorRoland McGrath <roland@gnu.org>1996-02-02 18:41:42 +0000
committerRoland McGrath <roland@gnu.org>1996-02-02 18:41:42 +0000
commitb07c5668f672125074dd5b0b658145e1544120be (patch)
tree5b88eee61a21fd4550a4f77233741d42f736034f /posix/getopt.c
parent54139447380b1434bf8bbe788a61523f115345f4 (diff)
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Updated from ../gpl2lgpl.sed /home/gd/gnu/lib/getopt.c
Diffstat (limited to 'posix/getopt.c')
-rw-r--r--posix/getopt.c33
1 files changed, 30 insertions, 3 deletions
diff --git a/posix/getopt.c b/posix/getopt.c
index a85053f825..0da5965137 100644
--- a/posix/getopt.c
+++ b/posix/getopt.c
@@ -221,6 +221,12 @@ extern int strlen (const char *);
static int first_nonopt;
static int last_nonopt;
+/* Bash 2.0 gives us an environment variable containing flags
+ indicating ARGV elements that should not be considered arguments. */
+
+static const char *nonoption_flags;
+static int nonoption_flags_len;
+
/* Exchange two adjacent subsequences of ARGV.
One subsequence is elements [first_nonopt,last_nonopt)
which contains all the non-options that have been skipped so far.
@@ -326,6 +332,21 @@ _getopt_initialize (optstring)
else
ordering = PERMUTE;
+ if (posixly_correct == NULL)
+ {
+ /* Bash 2.0 puts a special variable in the environment for each
+ command it runs, specifying which ARGV elements are the results of
+ file name wildcard expansion and therefore should not be
+ considered as options. */
+ char var[100];
+ sprintf (var, "_%d_GNU_nonoption_argv_flags_", getpid ());
+ nonoption_flags = getenv (var);
+ if (nonoption_flags == NULL)
+ nonoption_flags_len = 0;
+ else
+ nonoption_flags_len = strlen (nonoption_flags);
+ }
+
return optstring;
}
@@ -402,6 +423,13 @@ _getopt_internal (argc, argv, optstring, longopts, longind, long_only)
optind = 1; /* Don't scan ARGV[0], the program name. */
}
+ /* Test whether ARGV[optind] points to a non-option argument.
+ Either it does not have option syntax, or there is an environment flag
+ from the shell indicating it is not an option. */
+#define NONOPTION_P (argv[optind][0] != '-' || argv[optind][1] == '\0' \
+ || (optind < nonoption_flags_len \
+ && nonoption_flags[optind] == '1'))
+
if (nextchar == NULL || *nextchar == '\0')
{
/* Advance to the next ARGV-element. */
@@ -419,8 +447,7 @@ _getopt_internal (argc, argv, optstring, longopts, longind, long_only)
/* Skip any additional non-options
and extend the range of non-options previously skipped. */
- while (optind < argc
- && (argv[optind][0] != '-' || argv[optind][1] == '\0'))
+ while (optind < argc && NONOPTION_P)
optind++;
last_nonopt = optind;
}
@@ -458,7 +485,7 @@ _getopt_internal (argc, argv, optstring, longopts, longind, long_only)
/* If we have come to a non-option and did not permute it,
either stop the scan or describe it to the caller and pass it by. */
- if ((argv[optind][0] != '-' || argv[optind][1] == '\0'))
+ if (NONOPTION_P)
{
if (ordering == REQUIRE_ORDER)
return EOF;