diff options
Diffstat (limited to 'posix')
| -rw-r--r-- | posix/getopt.c | 33 |
1 files changed, 30 insertions, 3 deletions
diff --git a/posix/getopt.c b/posix/getopt.c index a85053f..0da5965 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; |