Re: Command line globber/tokenizer library for C?

Am 10.09.2024 um 21:01 schrieb Ted Nolan <tednolan>:

I have the case where my C program is handed a string which is basically
a command line.

I tried to experiment with that with /proc/<pid>/cmdline. The first
problem was that the arguments aren't space delimited, but broken up
with zeroes. The second problem was the cmdline-file doesn't contain
the original commandline but with expanded files.
This was my code so far:
#include <iostream>
#include <fstream>
#include <sstream>
#include <algorithm>
#include <unistd.h>
using namespace std;
int main()
{
pid_t pid = getpid();
string cmdLineFile( (ostringstream() << "/proc/" << pid << "/cmdline").str() );
ifstream ifs;
ifs.exceptions( ifstream::failbit | ifstream::badbit );
ifs.open( cmdLineFile );
string fullCmdLine;
ifs >> fullCmdLine;
ifs.close();
replace( fullCmdLine.begin(), fullCmdLine.end(), (char)0, (char)' ' );
cout << fullCmdLine << endl;
}