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76 lines
1.5 KiB
C
76 lines
1.5 KiB
C
8 years ago
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/*
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POSIX getopt for Windows
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AT&T Public License
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Code given out at the 1985 UNIFORUM conference in Dallas.
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*/
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#ifdef _MSC_VER
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#include "wingetopt.h"
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#include <stdio.h>
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#include <string.h>
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#define EOF (-1)
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#define ERR(s, c) if(opterr){\
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char errbuf[2];\
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errbuf[0] = c; errbuf[1] = '\n';\
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fputs(argv[0], stderr);\
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fputs(s, stderr);\
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fputc(c, stderr);}
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//(void) write(2, argv[0], (unsigned)strlen(argv[0]));\
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//(void) write(2, s, (unsigned)strlen(s));\
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//(void) write(2, errbuf, 2);}
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int opterr = 1;
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int optind = 1;
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int optopt;
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char *optarg;
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int getopt(int argc, char * const argv[], const char *opts)
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{
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static int sp = 1;
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register int c;
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register char *cp;
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if (sp == 1)
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if (optind >= argc ||
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argv[optind][0] != '-' || argv[optind][1] == '\0')
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return(EOF);
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else if (strcmp(argv[optind], "--") == 0) {
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optind++;
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return(EOF);
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}
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optopt = c = argv[optind][sp];
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if (c == ':' || (cp = strchr(opts, c)) == NULL) {
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ERR(": illegal option -- ", (char)c);
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if (argv[optind][++sp] == '\0') {
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optind++;
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sp = 1;
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}
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return('?');
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}
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if (*++cp == ':') {
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if (argv[optind][sp + 1] != '\0')
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optarg = (char*)&argv[optind++][sp + 1];
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else if (++optind >= argc) {
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ERR(": option requires an argument -- ", (char)c);
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sp = 1;
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return('?');
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}
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else
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optarg = (char*)argv[optind++];
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sp = 1;
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}
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else {
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if (argv[optind][++sp] == '\0') {
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sp = 1;
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optind++;
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}
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optarg = NULL;
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}
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return(c);
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}
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#endif /* __GNUC__ */
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