Completed basic socket work.

Processes multiple requests concurrently (single thread).
Currently just echos received data.

src/main.c

@@ -0,0 +1,121 @@
+/* 
+ * File:   main.c
+ * Author: sam
+ *
+ * Created on 16 July 2014, 20:05
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include <string.h>
+#include <strings.h>
+
+#include "ut/utlist.h"
+#include "main.h"
+#include "socket.h"
+
+int serverfd = 0;
+
+/*
+ * 
+ */
+int main(int argc, char** argv) {
+    
+    skt_elem *connections = NULL;
+    
+    serverfd = svr_create();
+    svr_listen(serverfd, 1234);
+    
+    while(1) {
+        //Accept new connections
+        while(svr_canaccept(serverfd)) {
+            skt_info *info = svr_accept(serverfd);
+            if (info != NULL) {
+                skt_elem* newconn = calloc(1, sizeof(skt_elem));
+                newconn->info = info;
+                LL_APPEND(connections, newconn);
+            }
+        }
+        
+        skt_elem *elem, *tmp;
+        //Read from connections
+        LL_FOREACH(connections, elem) {
+            if (skt_canread(elem->info)) {
+                skt_read(elem->info);
+            }
+        }
+        
+        //Process sockets
+        LL_FOREACH(connections, elem) {
+            if (utstring_len(elem->info->read) > 0) {
+                utstring_printf(elem->info->write, "->");
+                utstring_concat(elem->info->write, elem->info->read);
+                utstring_clear(elem->info->read);
+            }
+        }
+        
+        //Write to connections
+        LL_FOREACH(connections, elem) {
+            if (utstring_len(elem->info->write) > 0) {
+                skt_write(elem->info);
+            } 
+        }
+        
+        time_t current = time(NULL);
+        time_t timeout = 5;
+        time_t maxlife = 500;
+        //Close where needed
+        LL_FOREACH(connections, elem) {
+            if (current - elem->info->last_act > timeout) {
+                info("[#%lu %s] Timeout", elem->info->id, skt_addr(elem->info));
+                elem->info->close = true;
+            }
+            if (current - elem->info->time_opened> maxlife) {
+                info("[#%lu %s] Reached max life", elem->info->id, skt_addr(elem->info));
+                elem->info->close = true;
+            }
+            if (elem->info->close == true) {
+                skt_close(elem->info);
+            }
+        }
+        //Delete closed connections
+        LL_FOREACH_SAFE(connections, elem, tmp) {
+            if (elem->info->closed) {
+                LL_DELETE(connections, elem);
+                skt_delete(elem->info);
+                free(elem);
+            }
+        }
+    }
+    
+    svr_release(serverfd);
+    serverfd = 0;
+    
+    return (EXIT_SUCCESS);
+}
+
+void fatal(char* msg) {
+    fprintf(stderr, "\n");
+    perror(msg);
+    exit(EXIT_FAILURE);
+}
+void warning(char* msg, bool showPError) {
+    
+    char warning[512];
+    bzero(&warning, sizeof warning);
+    snprintf(warning, 511, "Warning: %s", msg);
+    
+    if (showPError == true) {
+        perror(warning);
+    } else {
+        fprintf(stderr, "%s\n", warning);
+    }
+}
+void info(char* msg, ...) {
+    va_list va;
+    va_start(va, msg);
+    vfprintf(stdout, msg, va);
+    fputc('\n', stdout);
+    va_end(va);
+}