diff --git a/LICENSE b/LICENSE
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--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,674 @@
+GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. {http://fsf.org/}
+ Everyone is permitted to copy and distribute verbatim copies
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+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    {one line to give the program's name and a brief idea of what it does.}
+    Copyright (C) {year}  {name of author}
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see {http://www.gnu.org/licenses/}.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    solace-test  Copyright (C) 2013  Eduardo Luis Buratti
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+{http://www.gnu.org/licenses/}.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+{http://www.gnu.org/philosophy/why-not-lgpl.html}.
diff --git a/include/agent/windows/get_time.h b/include/agent/windows/get_time.h
index 94e12d885c9a4e88bc77b931d7b49448b8e06d30..ad4ee9fd5f1748da64b53b1b8cd3838bcaedd664 100644
--- a/include/agent/windows/get_time.h
+++ b/include/agent/windows/get_time.h
@@ -1,5 +1,5 @@
 #pragma once
 #include <time.h>
-#include <string.h>
+#include <string>
 
 std::string get_time();
diff --git a/src/linux/get_date.cpp b/src/linux/get_date.cpp
index ab435517b7ef61a2eef11acfa8da2a0f2be9a1a9..ac47db77ae1adcf6a8cd40a67b2d032c34d25d3a 100644
--- a/src/linux/get_date.cpp
+++ b/src/linux/get_date.cpp
@@ -1,3 +1,24 @@
+/* Copyright (C) 2016 Centro de Computacao Cientifica e Software Livre
+ * Departamento de Informatica - Universidade Federal do Parana - C3SL/UFPR
+ *
+ * This file is part of simmc-agent
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+ * USA.
+ */
+
 #include <agent/linux/get_date.h>
 
 std::string get_date() {
@@ -5,13 +26,13 @@ std::string get_date() {
 
     time_t rawtime;
     struct tm * timeinfo;
-    char buffer [20];
+    char buffer[20];
 
-    time (&rawtime);
-    timeinfo = localtime (&rawtime);
+    time(&rawtime);
+    localtime_r(&rawtime, timeinfo);
 
     // YYYY-MM-DD
-    strftime (buffer,20,"%Y-%m-%d",timeinfo);
+    strftime(buffer, 20, "%Y-%m-%d", timeinfo);
 
     res = buffer;
     return res;
diff --git a/src/linux/get_distro.cpp b/src/linux/get_distro.cpp
index 9597ce2924432ad6696cd2b0f359702da30b36a6..77cd662c45f2689bd7f8096c501eff8b868ee649 100644
--- a/src/linux/get_distro.cpp
+++ b/src/linux/get_distro.cpp
@@ -1,116 +1,138 @@
+/* Copyright (C) 2016 Centro de Computacao Cientifica e Software Livre
+ * Departamento de Informatica - Universidade Federal do Parana - C3SL/UFPR
+ *
+ * This file is part of simmc-agent
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+ * USA.
+ */
+
 #include "agent/linux/get_distro.h"
 
-int open_file(std::string name, std::ifstream& fstream){
-		fstream.open(name);
-		if (fstream.is_open())
-			return 1;
-		else
-			return 0;
+int open_file(std::string name, std::ifstream& fstream) {
+        fstream.open(name);
+        if (fstream.is_open())
+            return 1;
+        else
+            return 0;
 }
 
-std::string get_distro(){
-	/* in Linux: distro name + version + release
-	   the year is 2016 and we have 2 "unified" ways to identify distros
-	   and a couple regex to find the distro name files
-	   update: I used to complain about Linux, then I tried coding for
-	   Windows... */
-
-	/* current recorded distros are
-	   * Ubuntu
-	   * Debian
-	   * Linux Comunicações
-	   * Linux Educacional
-	   all of which should have the lsb-release file, but I added a couple more
-	   common distros just in case */
-
-	std::ifstream release_file;
-	std::string line;
-
-	// lsb compliant
-	if (open_file("/etc/lsb-release", release_file)) {
-		const std::string key = "DISTRIB_DESCRIPTION=";
-		std::size_t found;
-
-		while (getline(release_file, line)) {
-			found = line.find(key);
-			if (found!=std::string::npos) {
-				return (line.substr(found+key.length()+1,
-								   // remove key and quotes at the beginning
-								   line.length()-(found+key.length()+1)-1));
-								   // remove quotes at the end
-			}
-		}
-	}
-
-	// openSuSE
-	else if (open_file("/etc/os-release", release_file)){
-		const std::string name_key = "NAME=";
-		const std::string version_key = "VERSION=";
-
-		std::string name;
-		std::string version;
-
-		std::size_t found_name;
-		std::size_t found_version;
-
-		while (getline(release_file, line)) {
-			found_name = line.find(name_key);
-			found_version = line.find(version_key);
-			if (found_name < line.length()) {
-				name = line.substr(found_name+name_key.length()+1,
-								   // remove key and quotes at the beginning
-								   line.length()-(found_name+name_key.length()+1)-1);
-								   // remove quotes at the end
-			}
-
-			if (found_version < line.length()) {
-				version = line.substr(found_version+version_key.length()+1,
-								   // remove key and quotes at the beginning
-								   line.length()-(found_version+version_key.length()+1)-1);
-								   // remove quotes at the end
-			}
-
-			if (name.length() && version.length()) {
-				return name + version;
-			}
-		}
-
-		if (name.length()) {
-			return name;
-		}
-		else {
-			return "unknown";
-		}
-	}
-
-	else if (open_file("/etc/novell-release", release_file)){
-		getline(release_file, line);
-		return line;
-	}
-
-	else if (open_file("/etc/sles-release", release_file)){
-		getline(release_file, line);
-		return line;
-	}
-
-	// fedora
-	else if (open_file("/etc/redhat-release", release_file)){
-		getline(release_file, line);
-		return line;
-	}
-
-	// debian -- leave this at the end, otherwise debian-based distros
-	//			 will find the debian_version file instead of the actual
-	//			 distro name
-	else if (open_file("/etc/debian-release", release_file)){
-		getline(release_file, line);
-		return line;
-	}
-
-	else if (open_file("/etc/debian-version", release_file)){
-		getline(release_file, line);
-		return line;
-	}
-
-	return "unknown";
+std::string get_distro() {
+    /* in Linux: distro name + version + release
+       the year is 2016 and we have 2 "unified" ways to identify distros
+       and a couple regex to find the distro name files
+       update: I used to complain about Linux, then I tried coding for
+       Windows... */
+
+    /* currently recorded distros are
+       * Ubuntu
+       * Debian
+       * Linux Comunicações
+       * Linux Educacional
+       all of which should have the lsb-release file, but I added a couple more
+       common distros just in case */
+
+    std::ifstream release_file;
+    std::string line;
+
+    // lsb compliant
+    if (open_file("/etc/lsb-release", release_file)) {
+        const std::string key = "DISTRIB_DESCRIPTION=";
+        std::size_t found;
+
+        while (getline(release_file, line)) {
+            found = line.find(key);
+            if (found != std::string::npos) {
+                return (line.substr(found+key.length()+1,
+                                   // remove key and quotes at the beginning
+                                   line.length()-(found+key.length()+1)-1));
+                                   // remove quotes at the end
+            }
+        }
+
+    // openSuSE
+    } else if (open_file("/etc/os-release", release_file)) {
+
+        const std::string name_key = "NAME=";
+        const std::string version_key = "VERSION=";
+
+        std::string name;
+        std::string version;
+
+        std::size_t found_name;
+        std::size_t found_version;
+
+        while (getline(release_file, line)) {
+            found_name = line.find(name_key);
+            found_version = line.find(version_key);
+            if (found_name < line.length()) {
+                name = line.substr(found_name+name_key.length()+1,
+                              // remove key and quotes at the beginning
+                              line.length()-(found_name+name_key.length()+1)-1);
+                              // remove quotes at the end
+            }
+
+            if (found_version < line.length()) {
+                version = line.substr(found_version+version_key.length()+1,
+                                // remove key and quotes at the beginning
+                                line.length()-
+                                (found_version+version_key.length()+1)-1);
+                                // remove quotes at the end
+            }
+
+            if (name.length() && version.length()) {
+                return name + version;
+            }
+        }
+
+        if (name.length()) {
+            return name;
+        } else {
+            return "unknown";
+        }
+
+    } else if (open_file("/etc/novell-release", release_file)) {
+
+        getline(release_file, line);
+        return line;
+
+    } else if (open_file("/etc/sles-release", release_file)) {
+
+        getline(release_file, line);
+        return line;
+
+    // fedora
+    } else if (open_file("/etc/redhat-release", release_file)) {
+
+        getline(release_file, line);
+        return line;
+
+    // debian -- leave this at the end, otherwise debian-based distros
+    //           will find the debian_version file instead of the actual
+    //           distro name
+    } else if (open_file("/etc/debian-release", release_file)) {
+
+        getline(release_file, line);
+        return line;
+
+    } else if (open_file("/etc/debian-version", release_file)) {
+
+        getline(release_file, line);
+        return line;
+
+    }
+
+    return "unknown";
 }
diff --git a/src/linux/get_macaddr.cpp b/src/linux/get_macaddr.cpp
index a1fbcef762f1c80bc9221847e1b65797e8995254..8070215b18a9f23fe955561fc83bc2da7bf970e8 100644
--- a/src/linux/get_macaddr.cpp
+++ b/src/linux/get_macaddr.cpp
@@ -1,6 +1,28 @@
+/* Copyright (C) 2016 Centro de Computacao Cientifica e Software Livre
+ * Departamento de Informatica - Universidade Federal do Parana - C3SL/UFPR
+ *
+ * This file is part of simmc-agent
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+ * USA.
+ */
+
 #include <agent/linux/get_macaddr.h>
 
-std::string get_macaddr(){
+std::string get_macaddr() {
+
     std::fstream file;
     std::string macaddr;
 
@@ -17,4 +39,5 @@ std::string get_macaddr(){
     file.close();
 
     return macaddr;
+
 }
diff --git a/src/linux/get_machine_type.cpp b/src/linux/get_machine_type.cpp
index 9f4ba3cdf381fbe4c73778553bb35974876bbb08..aa1faca9b19eab9995bbbb8d257583caee29b7df 100644
--- a/src/linux/get_machine_type.cpp
+++ b/src/linux/get_machine_type.cpp
@@ -1,6 +1,27 @@
+/* Copyright (C) 2016 Centro de Computacao Cientifica e Software Livre
+ * Departamento de Informatica - Universidade Federal do Parana - C3SL/UFPR
+ *
+ * This file is part of simmc-agent
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+ * USA.
+ */
+
 #include <agent/linux/get_machine_type.h>
 
-std::string get_machine_type () {
+std::string get_machine_type() {
     struct addrinfo hints, *info, *p;
     int gai_result;
 
@@ -20,15 +41,15 @@ std::string get_machine_type () {
         return "unknown";
     }
 
-    for(p = info; p; p = p->ai_next) {
-		if (!p->ai_canonname) {
-			continue;
-		}
-        if (!strcmp(p->ai_canonname,"server.telecentro.net")) {;
+    for (p = info; p; p = p->ai_next) {
+        if (!p->ai_canonname) {
+            continue;
+        }
+        if (!strcmp(p->ai_canonname, "server.telecentro.net")) {;
             freeaddrinfo(info);
             return "server";
         }
-	}
+    }
 
     freeaddrinfo(info);
 
diff --git a/src/linux/get_time.cpp b/src/linux/get_time.cpp
index b3e6472a25dc9267cf5564d0b54e9ffa8905487b..24caafe930f8ed0e176a3c3677e248b51b76464e 100644
--- a/src/linux/get_time.cpp
+++ b/src/linux/get_time.cpp
@@ -1,3 +1,24 @@
+/* Copyright (C) 2016 Centro de Computacao Cientifica e Software Livre
+ * Departamento de Informatica - Universidade Federal do Parana - C3SL/UFPR
+ *
+ * This file is part of simmc-agent
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+ * USA.
+ */
+
 #include "agent/linux/get_time.h"
 
 // get current time
@@ -6,13 +27,13 @@ std::string get_time() {
 
     time_t rawtime;
     struct tm * timeinfo;
-    char buffer [20];
+    char buffer[20];
 
-    time (&rawtime);
-    timeinfo = localtime (&rawtime);
+    time(&rawtime);
+    localtime_r(&rawtime, timeinfo);
 
     // HH:MM:SS
-    strftime (buffer,20,"%H:%M:%S",timeinfo);
+    strftime(buffer, 20, "%H:%M:%S", timeinfo);
 
     res = buffer;
     return res;
diff --git a/src/linux/get_user_count.cpp b/src/linux/get_user_count.cpp
index ec430899efaf7310c776d954ab4dbab521e2baa9..f58a2ea097ee9212d0facb5ac81b8d025209e7bb 100644
--- a/src/linux/get_user_count.cpp
+++ b/src/linux/get_user_count.cpp
@@ -1,29 +1,33 @@
-/*
- * last.c   Re-implementation of the 'last' command, this time
- *      for Linux. Yes I know there is BSD last, but I
- *      just felt like writing this. No thanks :-).
- *      Also, this version gives lots more info (especially with -x)
+/* Copyright (C) 2016 Centro de Computacao Cientifica e Software Livre
+ * Departamento de Informatica - Universidade Federal do Parana - C3SL/UFPR
+ *
+ * This file is part of simmc-agent
  *
- * Author:  Miquel van Smoorenburg, miquels@cistron.nl
+ *     last.c   Re-implementation of the 'last' command, this time
+ *          for Linux. Yes I know there is BSD last, but I
+ *          just felt like writing this. No thanks :-).
+ *          Also, this version gives lots more info (especially with -x)
  *
- * Version: @(#)last  2.85  30-Jul-2004  miquels@cistron.nl
+ *     Author:  Miquel van Smoorenburg, miquels@cistron.nl
  *
- *      This file is part of the sysvinit suite,
- *      Copyright (C) 1991-2004 Miquel van Smoorenburg.
+ *     Version: @(#)last  2.85  30-Jul-2004  miquels@cistron.nl
  *
- *      This program is free software; you can redistribute it and/or modify
- *      it under the terms of the GNU General Public License as published by
- *      the Free Software Foundation; either version 2 of the License, or
- *      (at your option) any later version.
+ *          This file is part of the sysvinit suite,
+ *          Copyright (C) 1991-2004 Miquel van Smoorenburg.
  *
- *      This program is distributed in the hope that it will be useful,
- *      but WITHOUT ANY WARRANTY; without even the implied warranty of
- *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *      GNU General Public License for more details.
+ *          This program is free software; you can redistribute it and/or modify
+ *          it under the terms of the GNU General Public License as published by
+ *          the Free Software Foundation; either version 2 of the License, or
+ *          (at your option) any later version.
  *
- *      You should have received a copy of the GNU General Public License
- *      along with this program; if not, write to the Free Software
- *      Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ *          This program is distributed in the hope that it will be useful,
+ *          but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *          MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *          GNU General Public License for more details.
+ *
+ *          You should have received a copy of the GNU General Public License
+ *          along with this program; if not, write to the Free Software
+ *          Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
 #include "agent/linux/get_user_count.h"
@@ -43,7 +47,7 @@ time_t lastdate;    /* Last date we've seen */
  *  Read one utmp entry, return in new format.
  *  Automatically reposition file pointer.
  */
-static int uread (FILE *fp, struct utmp *u, int *quit) {
+static int uread(FILE *fp, struct utmp *u, int *quit) {
     static int utsize;
     static char buf[UCHUNKSIZE];
     char tmp[1024];
@@ -72,7 +76,7 @@ static int uread (FILE *fp, struct utmp *u, int *quit) {
             fprintf(stderr, "ERROR: seek failed!\n");
             return 0;
         }
-        bpos = (int)(fpos - o);
+        bpos = static_cast<int>(fpos - o);
         if (fread(buf, bpos, 1, fp) != 1) {
             fprintf(stderr, "ERROR: read failed!\n");
             return 0;
@@ -130,7 +134,7 @@ static int uread (FILE *fp, struct utmp *u, int *quit) {
 /*
  *  Get the basename of a filename
  */
-static char *mybasename (char *s) {
+static char *mybasename(char *s) {
     char *p;
 
     if ((p = strrchr(s, '/')) != NULL)
@@ -141,94 +145,95 @@ static char *mybasename (char *s) {
 }
 
 
-static void month_number (char *orig,char*dest){
-    char mon[] = {orig[4],orig[5],orig[6],'\0'};
+static void month_number(char *orig, char*dest) {
+    char mon[] = {orig[4], orig[5], orig[6], '\0'};
 
-    if(!strcmp(mon,"Jan")){
+    if (!strcmp(mon, "Jan")) {
         dest[2] = '0';
         dest[3] = '1';
         return;
     }
-    if(!strcmp(mon,"Feb")){
+    if (!strcmp(mon, "Feb")) {
         dest[2] = '0';
         dest[3] = '2';
         return;
     }
-    if(!strcmp(mon,"Mar")){
+    if (!strcmp(mon, "Mar")) {
         dest[2] = '0';
         dest[3] = '3';
         return;
     }
-    if(!strcmp(mon,"Apr")){
+    if (!strcmp(mon, "Apr")) {
         dest[2] = '0';
         dest[3] = '4';
         return;
     }
-    if(!strcmp(mon,"May")){
+    if (!strcmp(mon, "May")) {
         dest[2] = '0';
         dest[3] = '5';
         return;
     }
-    if(!strcmp(mon,"Jun")){
+    if (!strcmp(mon, "Jun")) {
         dest[2] = '0';
         dest[3] = '6';
         return;
     }
-    if(!strcmp(mon,"Jul")){
+    if (!strcmp(mon, "Jul")) {
         dest[2] = '0';
         dest[3] = '7';
         return;
     }
-    if(!strcmp(mon,"Aug")){
+    if (!strcmp(mon, "Aug")) {
         dest[2] = '0';
         dest[3] = '8';
         return;
     }
-    if(!strcmp(mon,"Sep")){
+    if (!strcmp(mon, "Sep")) {
         dest[2] = '0';
         dest[3] = '9';
         return;
     }
-    if(!strcmp(mon,"Oct")){
+    if (!strcmp(mon, "Oct")) {
         dest[2] = '1';
         dest[3] = '0';
         return;
     }
-    if(!strcmp(mon,"Nov")){
+    if (!strcmp(mon, "Nov")) {
         dest[2] = '1';
         dest[3] = '1';
         return;
     }
-    if(!strcmp(mon,"Dec")){
+    if (!strcmp(mon, "Dec")) {
         dest[2] = '1';
         dest[3] = '2';
         return;
     }
 
 }
+
 /*
  *  Show one line of information on screen
  */
-static struct user_log *list (struct utmp *p, time_t t, int what) {
+static struct user_log *list(struct utmp *p, time_t t, int what) {
     time_t tmp;
     struct user_log * u = (struct user_log *)malloc(sizeof(struct user_log));
-    char login[25],logout[25];
-
+    char login[25], logout[25];
+    
     /*
      *  Calculate times
      */
     tmp = (time_t)p->ut_time;
 
-    strcpy(u->user,p->ut_name);
-    strcpy(login,ctime(&tmp));
-    month_number(login,u->login);
+    strcpy(u->user, p->ut_name);
+    strcpy(login, ctime(&tmp));
+    month_number(login, u->login);
     u->login[0] = login[22];
     u->login[1] = login[23];
     u->login[4] = login[8] == ' '?'0':login[8];
     u->login[5] = login[9];
     u->login[6] = '\0';
 
-    switch(what) {
+    switch (what) {
         case R_NOW:
             sprintf(u->logout, "999999");
             break;
@@ -237,7 +242,7 @@ static struct user_log *list (struct utmp *p, time_t t, int what) {
             break;
         case R_NORMAL:
             strcpy(logout, ctime(&t));
-            month_number(logout,u->logout);
+            month_number(logout, u->logout);
             u->logout[0] = logout[22];
             u->logout[1] = logout[23];
             u->logout[4] = logout[8] == ' '?'0':logout[8];
@@ -251,7 +256,7 @@ static struct user_log *list (struct utmp *p, time_t t, int what) {
     return u;
 }
 
-static struct user_log * last_modified () {
+static struct user_log * last_modified() {
     FILE *fp;     /* Filepointer of wtmp file */
 
     struct utmp ut;   /* Current utmp entry */
@@ -277,7 +282,7 @@ static struct user_log * last_modified () {
     /*
      *    Which file do we want to read?
      */
-    ufile = (char *)WTMP_FILE;
+    ufile = (char *)(WTMP_FILE);
     time(&lastdown);
 
     /*
@@ -305,9 +310,9 @@ static struct user_log * last_modified () {
     /*
      *    Read first structure to capture the time field
      */
-    if (uread(fp, &ut, NULL) == 1)
+    if (uread(fp, &ut, NULL) == 1) {
         begintime = ut.ut_time;
-    else {
+    } else {
         fstat(fileno(fp), &st);
         begintime = st.st_ctime;
         quit = 1;
@@ -342,13 +347,12 @@ static struct user_log * last_modified () {
                 ut.ut_type = BOOT_TIME;
             else if (strncmp(ut.ut_user, "runlevel", 8) == 0)
                 ut.ut_type = RUN_LVL;
-        }
         /*def COMPAT*/
         /*
          *  For stupid old applications that don't fill in
          *  ut_type correctly.
          */
-        else {
+        } else {
             if (ut.ut_type != DEAD_PROCESS &&
                 ut.ut_name[0] && ut.ut_line[0] &&
                 strcmp(ut.ut_name, "LOGIN") != 0)
@@ -404,17 +408,19 @@ static struct user_log * last_modified () {
                  */
                 if (c == 0) {
                     c = R_NOW;
+
                     /* Is process still alive? */
                     if (ut.ut_pid > 0 &&
                         kill(ut.ut_pid, 0) != 0 &&
                         errno == ESRCH)
                         c = R_PHANTOM;
-                        quit = 0;
-                        u = list(&ut, lastboot, c);
-                        v = u;
-                        v->next = NULL;
-                    }
-                    /* FALLTHRU */
+
+                    quit = 0;
+                    u = list(&ut, lastboot, c);
+                    v = u;
+                    v->next = NULL;
+                }
+                /* FALLTHRU */
 
             case DEAD_PROCESS:
                 /*
@@ -423,10 +429,13 @@ static struct user_log * last_modified () {
                  */
                 if (ut.ut_line[0] == 0)
                     break;
-                if ((p = (struct utmplist *)malloc(sizeof(struct utmplist))) == NULL) {
+
+                p = (struct utmplist *)malloc(sizeof(struct utmplist));
+                if (p == NULL) {
                     fprintf(stderr, "ERROR: out of memory\n");
                     return NULL;
                 }
+
                 memcpy(&p->ut, &ut, sizeof(struct utmp));
                 p->next  = utmplist;
                 p->prev  = NULL;
@@ -437,7 +446,7 @@ static struct user_log * last_modified () {
         }
     }
 
-    while(!quit) {
+    while (!quit) {
 
         if (uread(fp, &ut, &quit) != 1)
             break;
@@ -456,13 +465,12 @@ static struct user_log * last_modified () {
                 ut.ut_type = BOOT_TIME;
             else if (strncmp(ut.ut_user, "runlevel", 8) == 0)
                 ut.ut_type = RUN_LVL;
-        }
         /*def COMPAT*/
         /*
          *  For stupid old applications that don't fill in
          *  ut_type correctly.
          */
-        else {
+        } else {
             if (ut.ut_type != DEAD_PROCESS &&
                 ut.ut_name[0] && ut.ut_line[0] &&
                 strcmp(ut.ut_name, "LOGIN") != 0)
@@ -519,6 +527,7 @@ static struct user_log * last_modified () {
                  */
                 if (c == 0) {
                     c = R_NOW;
+
                     /* Is process still alive? */
                     if (ut.ut_pid > 0 &&
                         kill(ut.ut_pid, 0) != 0 &&
@@ -540,7 +549,8 @@ static struct user_log * last_modified () {
                  */
                 if (ut.ut_line[0] == 0)
                     break;
-                if ((p = (struct utmplist *)malloc(sizeof(struct utmplist))) == NULL) {
+                p = (struct utmplist *)malloc(sizeof(struct utmplist));
+                if (p == NULL) {
                     fprintf(stderr, "ERROR: out of memory\n");
                     return NULL;
                 }
@@ -558,7 +568,7 @@ static struct user_log * last_modified () {
     return u;
 }
 
-int get_user_count () {
+int get_user_count() {
     struct user_log * u = last_modified();
     struct user_log * i;
     int count;
@@ -568,24 +578,24 @@ int get_user_count () {
     char yesterday[7];
     set<string> users;
 
-    time (&rawtime);
-    timeinfo = localtime (&rawtime);
+    time(&rawtime);
+    timeinfo = localtime(&rawtime);  // NOLINT(runtime/threadsafe_fn)
     timeinfo->tm_mday--;
     mktime(timeinfo);
 
-    strftime (yesterday,7,"%y%m%d",timeinfo);
+    strftime(yesterday, 7, "%y%m%d", timeinfo);
     yesterday[6] = '\0';
 
-    for(i = u; i; i = u){
-        if(!strcmp(i->logout,"999999")){
-            if(strcmp(i->login,yesterday) <= 0){
+    for (i = u; i; i = u) {
+        if (!strcmp(i->logout, "999999")) {
+            if (strcmp(i->login, yesterday) <= 0) {
                 users.insert(i->user);
             }
-        }else{
-            if(!strcmp(i->login,yesterday)){
+        } else {
+            if (!strcmp(i->login, yesterday)) {
                 users.insert(i->user);
-            }else
-            if(strcmp(i->login,yesterday) < 0 && strcmp(i->logout,yesterday) >= 0){
+            } else if (strcmp(i->login, yesterday) < 0 &&
+                       strcmp(i->logout, yesterday) >= 0) {
                 users.insert(i->user);
             }
         }
diff --git a/src/linux/inventory.cpp b/src/linux/inventory.cpp
index deb719c6c46110978d52c9a801e71b1a17f8489f..bab587c5fc8cfbfdd62d66a7631af432256bf22f 100644
--- a/src/linux/inventory.cpp
+++ b/src/linux/inventory.cpp
@@ -1,49 +1,67 @@
-#include "agent/linux/inventory.h"
+/* Copyright (C) 2016 Centro de Computacao Cientifica e Software Livre
+ * Departamento de Informatica - Universidade Federal do Parana - C3SL/UFPR
+ *
+ * This file is part of simmc-agent
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+ * USA.
+ */
 
-/*******************************
- *          INVENTORY          *
- *******************************/
+#include "agent/linux/inventory.h"
 
-std::string get_processor_model(){
-	return "unknown";
+std::string get_processor_model() {
+    return "unknown";
 }
 
-Json::Value get_inventory(){
+Json::Value get_inventory() {
 
-	Json::Value inv;
+    Json::Value inv;
 
-	// os info
+    // os info
 
-	struct utsname sysinfo;
+    struct utsname sysinfo;
     uname(&sysinfo);
 
-	inv["os_type"] = "Linux";
-	inv["os_distro"] = get_distro();
-	inv["os_kernel"] = sysinfo.release;
-	inv["mirror_timestamp"] = sysinfo.version;
-
-	// hw info
-	/*
-	inv["processor"] =
-	inv["memory"] =
-	inv["disk1_model"] =
-	inv["disk1_size"] =
-	inv["disk1_used"] =
-	inv["disk2_model"] =
-	inv["disk2_size"] =
-	inv["disk2_used"] =
-	inv["extra_hds"] =
-	*/
-
-	// other
-	/*
-	inv["agent_version"] =
-	inv["contact_date"] =
-	*/
-
-	inv["machine_type"] = get_machine_type();
-	inv["amount_users"] = get_user_count();
-	inv["mac_address"] = get_macaddr();
-
-	return inv;
+    inv["os_type"] = "Linux";
+    inv["os_distro"] = get_distro();
+    inv["os_kernel"] = sysinfo.release;
+    inv["mirror_timestamp"] = sysinfo.version;
+
+    // hw info
+    /*
+    inv["processor"] =
+    inv["memory"] =
+    inv["disk1_model"] =
+    inv["disk1_size"] =
+    inv["disk1_used"] =
+    inv["disk2_model"] =
+    inv["disk2_size"] =
+    inv["disk2_used"] =
+    inv["extra_hds"] =
+    */
+
+    // other
+    /*
+    inv["agent_version"] =
+    inv["contact_date"] =
+    */
+
+    inv["machine_type"] = get_machine_type();
+    inv["amount_users"] = get_user_count();
+    inv["mac_address"] = get_macaddr();
+
+    return inv;
+
 }
diff --git a/src/main.cpp b/src/main.cpp
index 3e72ecadf16949a43b9117e03257a8875cad1d51..3bdd5da8d37a37ef2df4dd149c102be9426cd873 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -1,14 +1,35 @@
-#include <iostream>
+/* Copyright (C) 2004-2016 Centro de Computacao Cientifica e Software Livre
+ * Departamento de Informatica - Universidade Federal do Parana - C3SL/UFPR
+ *
+ * This file is part of simmc-agent
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+ * USA.
+ */
+
 #include <sys/utsname.h>
 #include <cpr/cpr.h>
+#include <iostream>
 #include <fstream>
 #include "agent/post.h"
 
-int main(){
+int main() {
 
-	send_inventory();
-	send_net_bandwidth();
-	send_user_history();
+    send_inventory();
+    send_net_bandwidth();
+    send_user_history();
 
-	return 0;
+    return 0;
 }
diff --git a/src/network_bandwidth.cpp b/src/network_bandwidth.cpp
index 9ff07d5397340f1fe6c9138adde724e7ff6c6f83..50920762d45c8c40a08b661a4884d4c540a37309 100644
--- a/src/network_bandwidth.cpp
+++ b/src/network_bandwidth.cpp
@@ -1 +1,22 @@
+/* Copyright (C) 2004-2016 Centro de Computacao Cientifica e Software Livre
+ * Departamento de Informatica - Universidade Federal do Parana - C3SL/UFPR
+ *
+ * This file is part of simmc-agent
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+ * USA.
+ */
+
 #include "agent/network_bandwidth.h"
diff --git a/src/post.cpp b/src/post.cpp
index dac86f2207c1edb843355d96f19fb0d03f769ebb..fc20d8cd4c4a114c5cae0b5eeb2b3126778d3f2d 100644
--- a/src/post.cpp
+++ b/src/post.cpp
@@ -1,60 +1,82 @@
+/* Copyright (C) 2004-2016 Centro de Computacao Cientifica e Software Livre
+ * Departamento de Informatica - Universidade Federal do Parana - C3SL/UFPR
+ *
+ * This file is part of simmc-agent
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+ * USA.
+ */
+
 #include "agent/post.h"
 
 /*******************************
  *          INVENTORY          *
  *******************************/
 
-int send_inventory(){
-	Json::Value inventory = get_inventory();
-	Json::FastWriter fastWriter;
+int send_inventory() {
+
+    Json::Value inventory = get_inventory();
+    Json::FastWriter fastWriter;
 
-#ifdef 	PRINT_JSON
-	Json::StyledWriter styledWriter;
-	if (!inventory.isNull())
-		std::cout << styledWriter.write(inventory);
-	else
-		std::cout << "Empty inventory object" << std::endl;
+#ifdef PRINT_JSON
+    Json::StyledWriter styledWriter;
+    if (!inventory.isNull())
+        std::cout << styledWriter.write(inventory);
+    else
+        std::cout << "Empty inventory object" << std::endl;
 #endif
 
-	auto p = cpr::Post(cpr::Url{base_url + "/api/v1/collect"},
+    auto p = cpr::Post(cpr::Url{base_url + "/api/v1/collect"},
                       cpr::Parameters{{"type", "inventory"}},
                       cpr::Body{fastWriter.write(inventory)},
                       cpr::Header{{"content-type", "application/json"}});
-	
-	if (p.status_code == 200) {
-		return 1;
-	}
 
-	return 0;
-	
+    if (p.status_code == 200) {
+        return 1;
+    }
+
+    return 0;
+
 }
 
 /***************************************
  *          NETWORK BANDWIDTH          *
  ***************************************/
 
-int send_net_bandwidth(){
-	Json::Value net;
-	Json::FastWriter fastWriter;
+int send_net_bandwidth() {
+    Json::Value net;
+    Json::FastWriter fastWriter;
 
-#ifdef 	PRINT_JSON
-	Json::StyledWriter styledWriter;
-	if (!net.isNull())
-		std::cout << styledWriter.write(net);
-	else
-		std::cout << "Empty network_bandwidth object" << std::endl;
+#ifdef PRINT_JSON
+    Json::StyledWriter styledWriter;
+    if (!net.isNull())
+        std::cout << styledWriter.write(net);
+    else
+        std::cout << "Empty network_bandwidth object" << std::endl;
 #endif
 
-	auto p = cpr::Post(cpr::Url{base_url + "/api/v1/collect"},
+    auto p = cpr::Post(cpr::Url{base_url + "/api/v1/collect"},
                       cpr::Parameters{{"type", "network_bandwidth"}},
                       cpr::Body{fastWriter.write(net)},
                       cpr::Header{{"content-type", "application/json"}});
 
-	if (p.status_code == 200) {
-		return 1;
-	}
-	
-	return 0;
+    if (p.status_code == 200) {
+        return 1;
+    }
+
+    return 0;
 
 }
 
@@ -62,27 +84,27 @@ int send_net_bandwidth(){
  *          USER HISTORY          *
  **********************************/
 
-int send_user_history(){
-	Json::Value u_h;
-	Json::FastWriter fastWriter;
-	
-#ifdef 	PRINT_JSON
-	Json::StyledWriter styledWriter;
-	if (!u_h.isNull())
-		std::cout << styledWriter.write(u_h);
-	else
-		std::cout << "Empty user_history object" << std::endl;
+int send_user_history() {
+    Json::Value u_h;
+    Json::FastWriter fastWriter;
+
+#ifdef PRINT_JSON
+    Json::StyledWriter styledWriter;
+    if (!u_h.isNull())
+        std::cout << styledWriter.write(u_h);
+    else
+        std::cout << "Empty user_history object" << std::endl;
 #endif
 
-	auto p = cpr::Post(cpr::Url{base_url + "/api/v1/collect"},
+    auto p = cpr::Post(cpr::Url{base_url + "/api/v1/collect"},
                       cpr::Parameters{{"type", "user_history"}},
                       cpr::Body{fastWriter.write(u_h)},
                       cpr::Header{{"content-type", "application/json"}});
-	
-	if (p.status_code == 200) {
-		return 1;
-	}
 
-	return 0;
+    if (p.status_code == 200) {
+        return 1;
+    }
+
+    return 0;
 
 }
diff --git a/src/user_history.cpp b/src/user_history.cpp
index c42b72f1e471e208b22108b42c8617116c416294..ce1dabdc2923efcc9d392cf8c1b676ac20dd7f45 100644
--- a/src/user_history.cpp
+++ b/src/user_history.cpp
@@ -1 +1,22 @@
+/* Copyright (C) 2004-2016 Centro de Computacao Cientifica e Software Livre
+ * Departamento de Informatica - Universidade Federal do Parana - C3SL/UFPR
+ *
+ * This file is part of simmc-agent
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+ * USA.
+ */
+
 #include "agent/user_history.h"
diff --git a/src/windows/get_date.cpp b/src/windows/get_date.cpp
index ee6d0ce36658f49f3807fa742b99de6cb14aa113..7e919c9c8ba459d199c9c24d093930904ff29b06 100644
--- a/src/windows/get_date.cpp
+++ b/src/windows/get_date.cpp
@@ -1,3 +1,24 @@
+/* Copyright (C) 2004-2016 Centro de Computacao Cientifica e Software Livre
+ * Departamento de Informatica - Universidade Federal do Parana - C3SL/UFPR
+ *
+ * This file is part of simmc-agent
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+ * USA.
+ */
+
 #include <agent/windows/get_date.h>
 
 std::string get_date() {
@@ -5,13 +26,13 @@ std::string get_date() {
 
     time_t rawtime;
     struct tm * timeinfo;
-    char buffer [20];
+    char buffer[20];
 
-    time (&rawtime);
-    timeinfo = localtime (&rawtime);
+    time(&rawtime);
+    localtime_r(&rawtime, timeinfo);
 
     // YYYY-MM-DD
-    strftime (buffer,20,"%Y-%m-%d",timeinfo);
+    strftime(buffer, 20, "%Y-%m-%d", timeinfo);
 
     res = buffer;
     return res;
diff --git a/src/windows/get_macaddr.cpp b/src/windows/get_macaddr.cpp
index bce36442ea87e19d7da72b58a0d7c24167a338b0..83454c8263118b302388681eadc9e28b1c854831 100644
--- a/src/windows/get_macaddr.cpp
+++ b/src/windows/get_macaddr.cpp
@@ -1,6 +1,27 @@
+/* Copyright (C) 2004-2016 Centro de Computacao Cientifica e Software Livre
+ * Departamento de Informatica - Universidade Federal do Parana - C3SL/UFPR
+ *
+ * This file is part of simmc-agent
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+ * USA.
+ */
+
 #include <agent/windows/get_macaddr.h>
 
-string get_macaddr(){
+string get_macaddr() {
     PIP_ADAPTER_INFO AdapterInfo;
     DWORD dwBufLen = sizeof(AdapterInfo);
     char *mac_addr = (char*)malloc(17);
@@ -10,7 +31,8 @@ string get_macaddr(){
         printf("Error allocating memory needed to call GetAdaptersinfo\n");
     }
 
-    // Make an initial call to GetAdaptersInfo to get the necessary size into the dwBufLen     variable
+    // Initial call to GetAdaptersInfo to get the necessary size into
+    // the dwBufLen variable
     if (GetAdaptersInfo(AdapterInfo, &dwBufLen) == ERROR_BUFFER_OVERFLOW) {
 
         AdapterInfo = (IP_ADAPTER_INFO *) malloc(dwBufLen);
@@ -20,7 +42,9 @@ string get_macaddr(){
     }
 
     if (GetAdaptersInfo(AdapterInfo, &dwBufLen) == NO_ERROR) {
-        PIP_ADAPTER_INFO pAdapterInfo = AdapterInfo;// Contains pointer to current adapter info
+
+        // Contains pointer to current adapter info
+        PIP_ADAPTER_INFO pAdapterInfo = AdapterInfo;
 
         sprintf(mac_addr, "%02X:%02X:%02X:%02X:%02X:%02X",
         pAdapterInfo->Address[0], pAdapterInfo->Address[1],
diff --git a/src/windows/get_machine_type.cpp b/src/windows/get_machine_type.cpp
index c8734a065dc5e99c3ebb5fcda4e1216a8b128931..a45ce78548d3141af7be20ff64e5099ba28b9e9e 100644
--- a/src/windows/get_machine_type.cpp
+++ b/src/windows/get_machine_type.cpp
@@ -1,3 +1,24 @@
+/* Copyright (C) 2004-2016 Centro de Computacao Cientifica e Software Livre
+ * Departamento de Informatica - Universidade Federal do Parana - C3SL/UFPR
+ *
+ * This file is part of simmc-agent
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+ * USA.
+ */
+
 #include <agent/windows/get_machine_type.h>
 
 string get_machine_type(void) {
@@ -10,7 +31,7 @@ string get_machine_type(void) {
         return "unknow";
     }
 
-    if (!strcmp(buffer,"server.telecentro.net")) {
+    if (!strcmp(buffer, "server.telecentro.net")) {
         dwSize = _countof(buffer);
         ZeroMemory(buffer, dwSize);
         return "server";
diff --git a/src/windows/get_time.cpp b/src/windows/get_time.cpp
index 2e405288f3c4cb4fc75938fbb7b8b4b9b82535bd..4bef83fa213fdd0f1dbcdf754f4a6a6aa4ac05f2 100644
--- a/src/windows/get_time.cpp
+++ b/src/windows/get_time.cpp
@@ -1,6 +1,25 @@
-#pragma once
-#include <time.h>
-#include <string.h>
+/* Copyright (C) 2004-2016 Centro de Computacao Cientifica e Software Livre
+ * Departamento de Informatica - Universidade Federal do Parana - C3SL/UFPR
+ *
+ * This file is part of simmc-agent
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+ * USA.
+ */
+
+#include "agent/windows/get_time.h"
 
 // get current time
 std::string get_time() {
@@ -8,13 +27,14 @@ std::string get_time() {
 
     time_t rawtime;
     struct tm * timeinfo;
-    char buffer [20];
+    char buffer[20];
 
-    time (&rawtime);
-    timeinfo = localtime (&rawtime);
+    time(&rawtime);
+    timeinfo = localtime(&rawtime);
 
     // HH:MM:SS
-    strftime (buffer,20,"%H:%M:%S",timeinfo);
+    strftime(buffer, 20, "%H:%M:%S", timeinfo);
 
     res = buffer;
     return res;
+}
diff --git a/src/windows/inventory.cpp b/src/windows/inventory.cpp
index 3fe31119e265374f3962250e1ec029e073a8721f..024c20c9f865314b36008dc6e0672651854293e4 100644
--- a/src/windows/inventory.cpp
+++ b/src/windows/inventory.cpp
@@ -1,52 +1,73 @@
+/* Copyright (C) 2004-2016 Centro de Computacao Cientifica e Software Livre
+ * Departamento de Informatica - Universidade Federal do Parana - C3SL/UFPR
+ *
+ * This file is part of simmc-agent
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+ * USA.
+ */
+
 #include "agent/windows/inventory.h"
 
 /*******************************
  *          INVENTORY          *
  *******************************/
 
-std::string get_distro(){
-	// use dtwinver
+std::string get_distro() {
+    // use dtwinver
 
-	return "unknown";
+    return "unknown";
 }
 
-std::string get_processor_model(){
-	return "unknown";
+std::string get_processor_model() {
+    return "unknown";
 }
 
-Json::Value get_inventory(){
-
-	Json::Value inv;
-
-	// os info
-
-	inv["os_type"] = "Windows";
-	inv["os_distro"] = "Windows"; //TODO: replace with dtwinver thing
-	inv["os_kernel"] = "Windows";
-	inv["mirror_timestamp"] = "Windows";
-
-	// hw info
-	/*
-	inv["processor"] =
-	inv["memory"] =
-	inv["disk1_model"] =
-	inv["disk1_size"] =
-	inv["disk1_used"] =
-	inv["disk2_model"] =
-	inv["disk2_size"] =
-	inv["disk2_used"] =
-	inv["extra_hds"] =
-	*/
-
-	// other
-	/*
-	inv["agent_version"] =
-	inv["contact_date"] =
-	inv["amount_users"] =
-	*/
-
-	inv["machine_type"] = get_machine_type();
-	inv["mac_address"] = get_macaddr();
-
-	return inv;
+Json::Value get_inventory() {
+
+    Json::Value inv;
+
+    // os info
+
+    inv["os_type"] = "Windows";
+    inv["os_distro"] = get_distro();
+    inv["os_kernel"] = "Windows";
+    inv["mirror_timestamp"] = "Windows";
+
+    // hw info
+    /*
+    inv["processor"] =
+    inv["memory"] =
+    inv["disk1_model"] =
+    inv["disk1_size"] =
+    inv["disk1_used"] =
+    inv["disk2_model"] =
+    inv["disk2_size"] =
+    inv["disk2_used"] =
+    inv["extra_hds"] =
+    */
+
+    // other
+    /*
+    inv["agent_version"] =
+    inv["contact_date"] =
+    inv["amount_users"] =
+    */
+
+    inv["machine_type"] = get_machine_type();
+    inv["mac_address"] = get_macaddr();
+
+    return inv;
 }
diff --git a/test/test.sh b/test/test.sh
index 2394c71c4783c41b12fa74d23dc30e473bb1911f..00d822e79303538c0937c138c9b79716d019f012 100755
--- a/test/test.sh
+++ b/test/test.sh
@@ -1,5 +1,8 @@
 #!/bin/bash
 
+# allow for improved pattern recognition
+shopt -s extglob
+
 # is docker installed?
 command -v docker >/dev/null 2>&1 || { echo >&2 "It seems docker is not installed. Aborting."; exit 1; }
 
@@ -11,6 +14,7 @@ command -v docker >/dev/null 2>&1 || { echo >&2 "It seems docker is not installe
 # -q - redirect stdout of rsync and docker build to specified file / log.txt if
 #      no argument is provided
 
+LINT=true
 EXECUTE_ALL=true
 RSYNC=false
 BUILD_DOCKER_IMAGES=false
@@ -112,7 +116,11 @@ fi
 # rsync
 if ($RSYNC)
 then
-    printf "**********\n*  COPY  *\n**********\n\n"
+    printf "******************\n*  LINT and COPY *\n******************\n\n"
+
+    printf "Applying linter to /agent/src/*.cpp\n"
+    cpplint.py --filter=-whitespace/blank_line,-build/include_what_you_use ../src/!(jsoncpp).cpp ../src/linux/*.cpp ../src/windows/*.cpp
+    shopt -u extglob
 
     for i in "${!IMAGES_LIST[@]}"
     do