moved getopt to stdio, because it uses it

This commit is contained in:
ceriel 1988-08-03 14:42:47 +00:00
parent 0406776361
commit caf948e80e
3 changed files with 59 additions and 1 deletions

View file

@ -17,7 +17,6 @@ ffs.c
gcvt.c
ecvt.c
getlogin.c
getopt.c
index.c
l3.c
ldexp.c

View file

@ -1,5 +1,6 @@
tail_cc.1s.a
termcap.c
getopt.c
clearerr.c
fgetc.c
fgets.c

View file

@ -0,0 +1,58 @@
/* $Header$ */
#include <stdio.h>
#define ERR(s, c) if(opterr){\
fputs(argv[0], stderr);\
fputs(s, stderr);\
fputc(c, stderr);\
fputc('\n', stderr);}
int opterr = 1;
int optind = 1;
int optopt;
char *optarg;
char *index();
int
getopt (argc, argv, opts)
char **argv, *opts;
{
static int sp = 1;
register c;
register char *cp;
if (sp == 1)
if (optind >= argc ||
argv[optind][0] != '-' || argv[optind][1] == '\0')
return EOF;
else if (strcmp(argv[optind], "--") == NULL) {
optind++;
return EOF;
}
optopt = c = argv[optind][sp];
if (c == ':' || (cp=index(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;
}