banan-os/userspace/getopt/main.cpp

45 lines
806 B
C++

#include <BAN/String.h>
#include <BAN/Vector.h>
#include <stdio.h>
#include <unistd.h>
int main(int argc, char** argv)
{
if (argc < 2)
{
fprintf(stderr, "usage: %s OPTSTRING [PARAMETERS]...", argv[0]);
return 1;
}
BAN::Vector<char*> argv_copy(argc - 1);
argv_copy[0] = argv[0];
for (int i = 2; i < argc; i++)
argv_copy[i - 1] = argv[i];
int opt;
BAN::String parsed;
while ((opt = getopt(argc - 1, argv_copy.data(), argv[1])) != -1)
{
if (opt == ':' || opt == '?')
continue;
MUST(parsed.append(" -"));
MUST(parsed.push_back(opt));
if (optarg)
{
MUST(parsed.push_back(' '));
MUST(parsed.append(optarg));
}
optarg = nullptr;
}
printf("%s --", parsed.data());
for (; optind < argc - 1; optind++)
printf(" %s", argv_copy[optind]);
printf("\n");
return 0;
}