diff options
Diffstat (limited to 'libc/unistd/getopt_vars.c')
-rw-r--r-- | libc/unistd/getopt_vars.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/libc/unistd/getopt_vars.c b/libc/unistd/getopt_vars.c new file mode 100644 index 000000000..6dcb73ad7 --- /dev/null +++ b/libc/unistd/getopt_vars.c @@ -0,0 +1,40 @@ +#include <stdio.h> + +/* + * Getopt vars shared between getopt and gnu_getopt + */ + +/* For communication from `getopt' to the caller. + When `getopt' finds an option that takes an argument, + the argument value is returned here. + Also, when `ordering' is RETURN_IN_ORDER, + each non-option ARGV-element is returned here. */ + +char *optarg = NULL; + +/* Index in ARGV of the next element to be scanned. + This is used for communication to and from the caller + and for communication between successive calls to `getopt'. + + On entry to `getopt', zero means this is the first call; initialize. + + When `getopt' returns EOF, this is the index of the first of the + non-option elements that the caller should itself scan. + + Otherwise, `optind' communicates from one call to the next + how much of ARGV has been scanned so far. */ + +/* XXX 1003.2 says this must be 1 before any call. */ +int optind = 0; + + +/* Callers store zero here to inhibit the error message + for unrecognized options. */ + +int opterr = 1; + +/* Set to an option character which was unrecognized. + This must be initialized on some systems to avoid linking in the + system's own getopt implementation. */ + +int optopt = '?'; |