clock/shhopt.h

   1 /* $Id: shhopt.h,v 2.2 1997/07/06 23:11:58 aebr Exp $ */
   2 #ifndef SHHOPT_H
   3 #define SHHOPT_H
   4
   5 /* constants for recognized option types. */
   6 typedef enum {
   7     OPT_END,               /* nothing. used as ending element. */
   8     OPT_FLAG,              /* no argument following. sets variable to 1. */
   9     OPT_STRING,            /* string argument. */
  10     OPT_INT,               /* signed integer argument. */
  11     OPT_UINT,              /* unsigned integer argument. */
  12     OPT_LONG,              /* signed long integer argument. */
  13     OPT_ULONG,             /* unsigned long integer argument. */
  14 } optArgType;
  15
  16 /* flags modifying the default way options are handeled. */
  17 #define OPT_CALLFUNC  1    /* pass argument to a function. */
  18
  19 typedef struct {
  20     char       shortName;  /* Short option name. */
  21     char       *longName;  /* Long option name, no including '--'. */
  22     optArgType type;       /* Option type. */
  23     void       *arg;       /* Pointer to variable to fill with argument,
  24                             * or pointer to function if Type == OPT_FUNC. */
  25     int        flags;      /* Modifier flags. */
  26 } optStruct;
  27
  28
  29 void optSetFatalFunc(void (*f)(const char *, ...));
  30 void optParseOptions(int *argc, char *argv[],
  31                      const optStruct opt[], int allowNegNum);
  32
  33 #endif