source: golgotha/src/i4/loaders/mp3/getlopt.hh @ 80

Last change on this file since 80 was 80, checked in by Sam Hocevar, 11 years ago
  • Adding the Golgotha source code. Not sure what's going to be interesting in there, but since it's all public domain, there's certainly stuff to pick up.
File size: 2.1 KB
Line 
1/********************************************************************** <BR>
2  This file is part of Crack dot Com's free source code release of
3  Golgotha. <a href="http://www.crack.com/golgotha_release"> <BR> for
4  information about compiling & licensing issues visit this URL</a>
5  <PRE> If that doesn't help, contact Jonathan Clark at
6  golgotha_source@usa.net (Subject should have "GOLG" in it)
7***********************************************************************/
8
9/*
10 *   getlopt.h
11 *
12 *   Oliver Fromme  <oliver.fromme@heim3.tu-clausthal.de>
13 *   Tue Apr  8 07:13:39 MET DST 1997
14 */
15
16#include <stdlib.h>
17#include <string.h>
18
19extern int loptind;     /* index in argv[] */
20extern int loptchr;     /* index in argv[loptind] */
21extern char *loptarg;   /* points to argument if present, else to option */
22
23typedef struct {
24        char sname;     /* short option name, can be 0 */
25        char *lname;    /* long option name, can be 0 */
26        int flags;      /* see below */
27        void (*func)(char *);   /* called if != 0 (after setting of var) */
28        void *var;      /* type is *int, *char or **char, see below */
29        int value;
30} topt;
31
32#define GLO_ARG  1
33#define GLO_CHAR 2
34#define GLO_NUM  0
35
36/* flags:
37 *      bit 0 = 0 - no argument
38 *              if var != NULL
39 *                      *var := value or (char)value [see bit 1]
40 *              else
41 *                      loptarg = &option
42 *                      return ((value != 0) ? value : sname)
43 *      bit 0 = 1 - argument required
44 *              if var != NULL
45 *                      *var := atoi(arg) or strdup(arg) [see bit 1]
46 *              else
47 *                      loptarg = &arg
48 *                      return ((value != 0) ? value : sname)
49 *
50 *      bit 1 = 0 - var is a pointer to an int
51 *      bit 1 = 1 - var is a pointer to a char (or string),
52 *                      and value is interpreted as char
53 *
54 * Note: The options definition is terminated by a topt
55 *       containing only zeroes.
56 */
57
58#define GLO_END         0
59#define GLO_UNKNOWN     -1
60#define GLO_NOARG       -2
61#define GLO_CONTINUE    -3
62
63int getlopt (int argc, char *argv[], topt *opts);
64
65/* return values:
66 *      GLO_END         (0)     end of options
67 *      GLO_UNKNOWN     (-1)    unknown option *loptarg
68 *      GLO_NOARG       (-2)    missing argument
69 *      GLO_CONTINUE    (-3)    (reserved for internal use)
70 *      else - return value according to flags (see above)
71 */
72
73/* EOF */
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