X-Git-Url: https://www.tinc-vpn.org/git/browse?p=tinc;a=blobdiff_plain;f=src%2Fgetopt.h;h=cd77d6758b5ee8db234885d29dc828bb1917ffce;hp=2290d7cfeff41b8c04cb2c660a5da6c5eedb8cb9;hb=3fae14fae5a347823679ef694ab630b4991a201d;hpb=985d19caf20058db3c764f0f6fbeafa8bcc59fcc diff --git a/src/getopt.h b/src/getopt.h index 2290d7cf..cd77d675 100644 --- a/src/getopt.h +++ b/src/getopt.h @@ -22,111 +22,110 @@ with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ -#ifdef cplusplus +#ifdef cplusplus extern "C" { #endif -/* 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. */ + /* 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. */ -extern char *optarg; + extern char *optarg; -/* 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'. + /* 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. + On entry to `getopt', zero means this is the first call; initialize. - When `getopt' returns -1, this is the index of the first of the - non-option elements that the caller should itself scan. + When `getopt' returns -1, 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. */ + Otherwise, `optind' communicates from one call to the next + how much of ARGV has been scanned so far. */ -extern int optind; + extern int optind; -/* Callers store zero here to inhibit the error message `getopt' prints - for unrecognized options. */ + /* Callers store zero here to inhibit the error message `getopt' prints + for unrecognized options. */ -extern int opterr; + extern int opterr; -/* Set to an option character which was unrecognized. */ + /* Set to an option character which was unrecognized. */ -extern int optopt; + extern int optopt; -/* Describe the long-named options requested by the application. - The LONG_OPTIONS argument to getopt_long or getopt_long_only is a vector - of `struct option' terminated by an element containing a name which is - zero. + /* Describe the long-named options requested by the application. + The LONG_OPTIONS argument to getopt_long or getopt_long_only is a vector + of `struct option' terminated by an element containing a name which is + zero. - The field `has_arg' is: - no_argument (or 0) if the option does not take an argument, - required_argument (or 1) if the option requires an argument, - optional_argument (or 2) if the option takes an optional argument. + The field `has_arg' is: + no_argument (or 0) if the option does not take an argument, + required_argument (or 1) if the option requires an argument, + optional_argument (or 2) if the option takes an optional argument. - If the field `flag' is not NULL, it points to a variable that is set - to the value given in the field `val' when the option is found, but - left unchanged if the option is not found. + If the field `flag' is not NULL, it points to a variable that is set + to the value given in the field `val' when the option is found, but + left unchanged if the option is not found. - To have a long-named option do something other than set an `int' to - a compiled-in constant, such as set a value from `optarg', set the - option's `flag' field to zero and its `val' field to a nonzero - value (the equivalent single-letter option character, if there is - one). For long options that have a zero `flag' field, `getopt' - returns the contents of the `val' field. */ + To have a long-named option do something other than set an `int' to + a compiled-in constant, such as set a value from `optarg', set the + option's `flag' field to zero and its `val' field to a nonzero + value (the equivalent single-letter option character, if there is + one). For long options that have a zero `flag' field, `getopt' + returns the contents of the `val' field. */ -struct option -{ + struct option { #if defined (STDC) && STDC - const char *name; + const char *name; #else - char *name; + char *name; #endif - /* has_arg can't be an enum because some compilers complain about - type mismatches in all the code that assumes it is an int. */ - int has_arg; - int *flag; - int val; -}; + /* has_arg can't be an enum because some compilers complain about + type mismatches in all the code that assumes it is an int. */ + int has_arg; + int *flag; + int val; + }; -/* Names for the values of the `has_arg' field of `struct option'. */ + /* Names for the values of the `has_arg' field of `struct option'. */ -#define no_argument 0 -#define required_argument 1 -#define optional_argument 2 +#define no_argument 0 +#define required_argument 1 +#define optional_argument 2 #if defined (STDC) && STDC #ifdef GNU_LIBRARY -/* Many other libraries have conflicting prototypes for getopt, with - differences in the consts, in stdlib.h. To avoid compilation - errors, only prototype getopt for the GNU C library. */ -extern int getopt (int argc, char *const *argv, const char *shortopts); + /* Many other libraries have conflicting prototypes for getopt, with + differences in the consts, in stdlib.h. To avoid compilation + errors, only prototype getopt for the GNU C library. */ + extern int getopt(int argc, char *const *argv, const char *shortopts); #else /* not GNU_LIBRARY */ -extern int getopt (); + extern int getopt(); #endif /* GNU_LIBRARY */ -extern int getopt_long (int argc, char *const *argv, const char *shortopts, - const struct option *longopts, int *longind); -extern int getopt_long_only (int argc, char *const *argv, - const char *shortopts, - const struct option *longopts, int *longind); - -/* Internal only. Users should not call this directly. */ -extern int _getopt_internal (int argc, char *const *argv, - const char *shortopts, - const struct option *longopts, int *longind, - int long_only); + extern int getopt_long(int argc, char *const *argv, const char *shortopts, + const struct option *longopts, int *longind); + extern int getopt_long_only(int argc, char *const *argv, + const char *shortopts, + const struct option *longopts, int *longind); + + /* Internal only. Users should not call this directly. */ + extern int _getopt_internal(int argc, char *const *argv, + const char *shortopts, + const struct option *longopts, int *longind, + int long_only); #else /* not STDC */ -extern int getopt (); -extern int getopt_long (); -extern int getopt_long_only (); + extern int getopt(); + extern int getopt_long(); + extern int getopt_long_only(); -extern int _getopt_internal (); + extern int _getopt_internal(); #endif /* STDC */ -#ifdef cplusplus +#ifdef cplusplus } #endif