C++ can't return variable

Hey all! This bit of code always returns 0, even though errcheck will have a non-zero value. If I use return 1; it works as expected. Please help?

   int errcheck = system(docommand.c_str());
    if (errcheck != 0)
    {
        cerr << "Could not retrieve tarball!" << " Errcheck status (debug): " << errcheck << endl;
        return errcheck;
    }

Here is the full code:

#include <iostream>
#include <sys/stat.h>
#include <sys/types.h>
#include <stdlib.h>
#include <string>
using namespace std;

int main(int argc, char* argv[])
{
    umask(0);
    mkdir("/tmp/.aget", 0755);
    chdir("/tmp/.aget");

    for (int i = 1; i < argc; i++)
    {
开发者_如何转开发
        string target(argv[i]);
        string docommand("");
        string s1("wget -q http://aur.archlinux.org/packages/");
        string s2("/");
        string s3(".tar.gz");
        docommand += s1;
        docommand += target;
        docommand += s2;
        docommand += target;
        docommand += s3;
        cout << "Downloading AUR tarball for '" << target << "'..." << endl;
        int errcheck = system(docommand.c_str());
        if (errcheck != 0)
        {
            cerr << "Could not retrieve tarball!" << " Errcheck status (debug): " << errcheck << endl;
            return errcheck;
        }
    }

    for (int i = 1; i < argc; i++)
    {
        string target(argv[i]);
        string docommand("");
        string s1("tar xf ");
        string s2(".tar.gz");
        docommand += s1;
        docommand += target;
        docommand += s2;
        cout << "Extracting '" << target << ".tar.gz'..." << endl;
        system(docommand.c_str());
    }

    for (int i = 1; i < argc; i++)
    {
        string target(argv[i]);
        string docommand("");
        chdir("/tmp/.aget");
        chdir(target.c_str());
        system("makepkg -csim --noconfirm > /dev/null");
    }

    rmdir("/tmp/.aget");

    return 0;
}

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Unix exit statuses are restricted to values 0-255, the range of an unsigned 8-bit integer. As such, you cannot see 2048.

See Exit Status wiki page for more information.

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I suspect that wget always returns 0.

This is because the actual error status from an http request is in the stream.