Load webkit url from stdin (note: does not compile, meant as example code)

webkit.c

#include <unistd.h>
#include <stdio.h>
#include <glib.h>
#include <string.h>

#define nullptr NULL

GMainLoop* loop;


void rstrip(char *string) {
    int l;
    if (!string)
        return;
    l = strlen(string) - 1;
    while (g_ascii_isspace(string[l]) && l >= 0) {
        string[l--] = 0;
    }
}

void lstrip(char *string) {
    int i, l;
    if (!string)
        return;
    l = strlen(string);
    while (g_ascii_isspace(string[(i = 0)])) {
        while(i++ < l) {
            string[i-1] = string[i];
        }
    }
}

void strip(char *string) {
    lstrip(string);
    rstrip(string);
}


static gboolean
io_callback (GIOChannel * io, GIOCondition condition, gpointer data)
{
    GError *error = NULL;
    gchar *value;
    char *url;

    WKViewRef *webView = (WKViewRef *)data;
    
    switch (g_io_channel_read_line (io, &value, NULL, NULL, &error)) {

    case G_IO_STATUS_NORMAL:
        
        if (!g_ascii_strncasecmp("LOAD ", value, 5)) {
            url = value + 5;
            strip(url);
            WKPageLoadURL(WKViewGetPage(webView), WKURLCreateWithURL(url));
            g_print("OK\n");
        } else {
            g_print("ERROR: Invalid command\n");
        }
        g_free(value);
        return TRUE;

    case G_IO_STATUS_ERROR:
        g_print("ERROR: IO error: %s\n", error->message);
        g_error_free (error);

        return FALSE;

    case G_IO_STATUS_EOF:
        g_print("ERROR: No input data available\n");
        return TRUE;

    case G_IO_STATUS_AGAIN:
        return TRUE;

    default:
        g_return_val_if_reached (FALSE);
        break;
    }

    return FALSE;
}


void setup_stdin(WKViewRef *webView) {
    GIOChannel *io = NULL;
    guint io_watch_id = 0;

    /* standard input callback */
    io = g_io_channel_unix_new (STDIN_FILENO);
    io_watch_id = g_io_add_watch (io, G_IO_IN, io_callback, webView);
    g_io_channel_unref (io);
}

int main(int argc, char** argv) {

    loop = g_main_loop_new(nullptr, FALSE);

    setup_stdin();
    g_main_loop_run(loop);

    g_main_loop_unref(loop);
    return 0;
}