#include <stdio.h>
|
#include <stdio.h>
|
#include <string.h>
|
#include <string.h>
|
#define EPR fprintf(stderr,
|
#define EPR fprintf(stderr,
|
#define ERR(str, chr) if(opterr){EPR "%s%c\n", str, chr);}
|
#define ERR(str, chr) if(opterr){EPR "%s%c\n", str, chr);}
|
int opterr = 1;
|
int opterr = 1;
|
int optind = 1;
|
int optind = 1;
|
int optopt;
|
int optopt;
|
char *optarg;
|
char *optarg;
|
|
|
int
|
int
|
getopt (int argc, char *const argv[], const char *opts)
|
getopt (int argc, char *const argv[], const char *opts)
|
{
|
{
|
static int sp = 1;
|
static int sp = 1;
|
int c;
|
int c;
|
char *cp;
|
char *cp;
|
|
|
if (sp == 1)
|
if (sp == 1)
|
if (optind >= argc ||
|
if (optind >= argc ||
|
argv[optind][0] != '-' || argv[optind][1] == '\0')
|
argv[optind][0] != '-' || argv[optind][1] == '\0')
|
return -1;
|
return -1;
|
else if (strcmp(argv[optind], "--") == 0) {
|
else if (strcmp(argv[optind], "--") == 0) {
|
optind++;
|
optind++;
|
return -1;
|
return -1;
|
}
|
}
|
optopt = c = argv[optind][sp];
|
optopt = c = argv[optind][sp];
|
if (c == ':' || (cp=strchr(opts, c)) == 0) {
|
if (c == ':' || (cp=strchr(opts, c)) == 0) {
|
ERR (": illegal option -- ", c);
|
ERR (": illegal option -- ", c);
|
if (argv[optind][++sp] == '\0') {
|
if (argv[optind][++sp] == '\0') {
|
optind++;
|
optind++;
|
sp = 1;
|
sp = 1;
|
}
|
}
|
return '?';
|
return '?';
|
}
|
}
|
if (*++cp == ':') {
|
if (*++cp == ':') {
|
if (argv[optind][sp+1] != '\0')
|
if (argv[optind][sp+1] != '\0')
|
optarg = &argv[optind++][sp+1];
|
optarg = &argv[optind++][sp+1];
|
else if (++optind >= argc) {
|
else if (++optind >= argc) {
|
ERR (": option requires an argument -- ", c);
|
ERR (": option requires an argument -- ", c);
|
sp = 1;
|
sp = 1;
|
return '?';
|
return '?';
|
} else
|
} else
|
optarg = argv[optind++];
|
optarg = argv[optind++];
|
sp = 1;
|
sp = 1;
|
} else {
|
} else {
|
if (argv[optind][++sp] == '\0') {
|
if (argv[optind][++sp] == '\0') {
|
sp = 1;
|
sp = 1;
|
optind++;
|
optind++;
|
}
|
}
|
optarg = 0;
|
optarg = 0;
|
}
|
}
|
return c;
|
return c;
|
}
|
}
|
|
|