mirror of https://github.com/vitalif/GPX
86 lines
2.1 KiB
C
86 lines
2.1 KiB
C
/*
|
|
Newsgroups: mod.std.unix
|
|
Subject: public domain AT&T getopt source
|
|
Date: 3 Nov 85 19:34:15 GMT
|
|
|
|
Here's something you've all been waiting for: the AT&T public domain
|
|
source for getopt(3). It is the code which was given out at the 1985
|
|
UNIFORUM conference in Dallas. I obtained it by electronic mail
|
|
directly from AT&T. The people there assure me that it is indeed
|
|
in the public domain.
|
|
|
|
25/1/2005 Henry Thomas <me(at)henri(dot)net>
|
|
|
|
Ported this original AT&T version of 'getopt' to windows.
|
|
|
|
Added 'getargv' to parse the 'WinMain' 'lpCmdLine' argument and convert it
|
|
into an argc/argv pair. This should improve portability between windows and
|
|
unix/linux platforms.
|
|
|
|
*/
|
|
|
|
#if defined(_MSC_VER)
|
|
#include "getopt.h"
|
|
|
|
#include <string.h>
|
|
#include <io.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
|
|
int opterr = 1;
|
|
int optind = 1;
|
|
int optopt;
|
|
char *optarg;
|
|
|
|
int getopt(int argc, char **argv, char *opts)
|
|
{
|
|
static int sp = 1;
|
|
register int c;
|
|
register char *cp;
|
|
|
|
if(sp == 1) {
|
|
if(optind >= argc ||
|
|
argv[optind][0] != '-' || argv[optind][1] == '\0') {
|
|
return(-1);
|
|
}
|
|
else if(strcmp(argv[optind], "--") == 0) {
|
|
optind++;
|
|
return(-1);
|
|
}
|
|
}
|
|
optopt = c = argv[optind][sp];
|
|
if(c == ':' || (cp = strchr(opts, c)) == NULL) {
|
|
fprintf(stderr, "Command line error: illegal option -- %c\r\n", c);
|
|
if(argv[optind][++sp] == '\0') {
|
|
optind++;
|
|
sp = 1;
|
|
}
|
|
return('?');
|
|
}
|
|
if(*++cp == ':') {
|
|
if(argv[optind][sp+1] != '\0') {
|
|
optarg = &argv[optind++][sp+1];
|
|
}
|
|
else if(++optind >= argc) {
|
|
fprintf(stderr, "Command line error: option requires an argument -- %c\r\n", c);
|
|
sp = 1;
|
|
return('?');
|
|
}
|
|
else {
|
|
optarg = argv[optind++];
|
|
}
|
|
sp = 1;
|
|
}
|
|
else {
|
|
if(argv[optind][++sp] == '\0') {
|
|
sp = 1;
|
|
optind++;
|
|
}
|
|
optarg = NULL;
|
|
}
|
|
return(c);
|
|
}
|
|
|
|
#endif
|
|
|