Luna/libc/src/string.cpp

#include <bits/signal.h>
#include <luna/SystemError.h>
#include <string.h>

extern "C"
{
    // All other string functions are defined in luna/CString.cpp, so the same definitions can be used by both kernel
    // and userspace.

    extern "C++" const char* error_string(int);

    int strcoll(const char* a, const char* b)
    {
        // In the POSIX or C locales strcoll() is equivalent to strcmp().
        return strcmp(a, b);
    }

    char* strerror(int errnum)
    {
        return const_cast<char*>(error_string(errnum));
    }

    static const char* __internal_strsignal(int signo)
    {
        switch (signo)
        {
        case SIGHUP: return "Hangup";
        case SIGINT: return "Terminal interrupt";
        case SIGQUIT: return "Terminal quit";
        case SIGILL: return "Invalid opcode";
        case SIGTRAP: return "Breakpoint trap";
        case SIGABRT: return "Aborted";
        case SIGCHLD: return "Child stopped or exited";
        case SIGFPE: return "Floating point exception";
        case SIGKILL: return "Killed";
        case SIGSTOP: return "Stopped";
        case SIGSEGV: return "Segmentation fault";
        case SIGCONT: return "Continued";
        case SIGPIPE: return "Broken pipe";
        case SIGALRM: return "Alarm signal";
        case SIGTERM: return "Terminated";
        case SIGTTIN: return "Background process stopped (terminal input)";
        case SIGTTOU: return "Background process stopped (terminal output)";
        default: return "Unknown signal";
        }
    }

    char* strsignal(int signo)
    {
        return const_cast<char*>(__internal_strsignal(signo));
    }
}