Commit | Line | Data |
---|---|---|
9d25673b C |
1 | #include "rc.h" |
2 | ||
3 | int rc_opterr = 1; | |
4 | int rc_optind = 1; | |
5 | int rc_optopt; | |
6 | char *rc_optarg; | |
7 | ||
8 | /* getopt routine courtesy of David Sanderson */ | |
9 | ||
10 | extern int rc_getopt(int argc, char **argv, char *opts) { | |
11 | static int sp = 1; | |
12 | int c; | |
13 | char *cp; | |
14 | if (rc_optind == 0) /* reset rc_getopt() */ | |
15 | rc_optind = sp = 1; | |
16 | if (sp == 1) | |
17 | if (rc_optind >= argc || argv[rc_optind][0] != '-' || argv[rc_optind][1] == '\0') { | |
18 | return -1; | |
19 | } else if (strcmp(argv[rc_optind], "--") == 0) { | |
20 | rc_optind++; | |
21 | return -1; | |
22 | } | |
23 | rc_optopt = c = argv[rc_optind][sp]; | |
24 | if (c == ':' || (cp=strchr(opts, c)) == 0) { | |
25 | fprint(2, "%s: bad option: -%c\n", argv[0], c); | |
26 | if (argv[rc_optind][++sp] == '\0') { | |
27 | rc_optind++; | |
28 | sp = 1; | |
29 | } | |
30 | return '?'; | |
31 | } | |
32 | if (*++cp == ':') { | |
33 | if (argv[rc_optind][sp+1] != '\0') { | |
34 | rc_optarg = &argv[rc_optind++][sp+1]; | |
35 | } else if (++rc_optind >= argc) { | |
36 | fprint(2, "%s: option requires an argument -- %c\n", argv[0], c); | |
37 | sp = 1; | |
38 | return '?'; | |
39 | } else | |
40 | rc_optarg = argv[rc_optind++]; | |
41 | sp = 1; | |
42 | } else { | |
43 | if (argv[rc_optind][++sp] == '\0') { | |
44 | sp = 1; | |
45 | rc_optind++; | |
46 | } | |
47 | rc_optarg = NULL; | |
48 | } | |
49 | return c; | |
50 | } |