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/**
* @file attgetopt.c
* @ingroup wbxml2xml_tool
* @ingroup xml2wbxml_tool
*
* AT&T's public domain implementation of getopt.
*
* From the mod.sources newsgroup, volume 3, issue 58, with modifications
* to bring it up to 21st century C.
*
* Taken from Kannel Project (http://www.kannel.org/)
*/
#include <stdio.h>
#include <string.h>
#define ERR(s, c) if (opterr) (void) fprintf(stderr, "%s: %s\n", argv[0], s)
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(EOF);
else if(strcmp(argv[optind], "--") == 0) {
optind++;
return(EOF);
}
}
optopt = c = argv[optind][sp];
if(c == ':' || (cp=strchr(opts, c)) == NULL) {
ERR(": illegal option -- ", 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) {
ERR(": option requires an argument -- ", c);
sp = 1;
return('?');
} else
optarg = argv[optind++];
sp = 1;
} else {
if(argv[optind][++sp] == '\0') {
sp = 1;
optind++;
}
optarg = NULL;
}
return(c);
}
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