From 0fec3a1213d6a51c77abb86d7b6758f96b1c9246 Mon Sep 17 00:00:00 2001
From: PartialVolume <nick.craig.law@gmail.com>
Date: Thu, 29 Aug 2019 18:12:19 +0100
Subject: [PATCH] Log system's hardware as described in the system BIOS
 according to the SMBIOS/DMI standard. Uses dmidecode with search keywords
 arguments. dmidecode -s to see available keywords.

---
 src/logging.c | 68 +++++++++++++++++++++++++++++++++++++++++++++++++++
 src/logging.h |  1 +
 src/nwipe.c   |  3 +++
 3 files changed, 72 insertions(+)

diff --git a/src/logging.c b/src/logging.c
index cd405be..6fd2528 100644
--- a/src/logging.c
+++ b/src/logging.c
@@ -19,7 +19,10 @@
  */
 
 #define _POSIX_SOURCE
+#define _DEFAULT_SOURCE
 
+#include "stdio.h"
+#include "stdlib.h"
 #include "nwipe.h"
 #include "context.h"
 #include "method.h"
@@ -318,4 +321,69 @@ void nwipe_perror( int nwipe_errno, const char* f, const char* s )
 
 } /* nwipe_perror */
 
+int nwipe_log_sysinfo()
+{
+   FILE *fp;
+   char path[256];
+   char cmd[50];
+   int len;
+
+   /* Remove or add keywords to be searched, depending on what information is to
+      be logged, making sure the last entry in the array is a NULL string. To remove
+      an entry simply comment out the keyword with // */
+   char dmidecode_keywords[][24] = {
+   "bios-version",
+   "bios-release-date",
+   "system-manufacturer",
+   "system-product-name",
+   "system-version",
+   "system-serial-number",
+   "system-uuid",
+   "baseboard-manufacturer",
+   "baseboard-product-name",
+   "baseboard-version",
+   "baseboard-serial-number",
+   "baseboard-asset-tag",
+   "chassis-manufacturer",
+   "chassis-type",
+   "chassis-version",
+   "chassis-serial-number",
+   "chassis-asset-tag",
+   "processor-family",
+   "processor-manufacturer",
+   "processor-version",
+   "processor-frequency",
+   "" //terminates the keyword array. DO NOT REMOVE
+   };
+   unsigned int keywords_idx;
+
+   keywords_idx = 0;
+
+   /* Run the dmidecode command to retrieve system serial number */
+   while ( dmidecode_keywords[keywords_idx][0] != 0 )
+   {
+      sprintf(cmd,"dmidecode -s %s", &dmidecode_keywords[keywords_idx][0] );
+      fp = popen(cmd, "r");
+      if (fp == NULL ) {
+         nwipe_log( NWIPE_LOG_INFO, "Failed to run command dmidecode -s %s", &dmidecode_keywords[keywords_idx][0], path );
+         return 1;
+      }
+      /* Read the output a line at a time - output it. */
+      while (fgets(path, sizeof(path)-1, fp) != NULL) 
+      {
+         /* Remove any trailing return from the string, as nwipe_log automatically adds a return */
+         len = strlen(path);
+         if( path[len-1] == '\n' ) {
+            path[len-1] = 0;
+         }
+         nwipe_log( NWIPE_LOG_INFO, "%s = %s", &dmidecode_keywords[keywords_idx][0], path );
+      }
+      /* close */
+      pclose(fp);
+      keywords_idx++;
+   }
+   return 0;
+}
+
+
 /* eof */
diff --git a/src/logging.h b/src/logging.h
index 514daf5..6cda821 100644
--- a/src/logging.h
+++ b/src/logging.h
@@ -39,6 +39,7 @@ typedef enum nwipe_log_t_
 
 void nwipe_log( nwipe_log_t level, const char* format, ... );
 void nwipe_perror( int nwipe_errno, const char* f, const char* s );
+int nwipe_log_sysinfo();
 
 /* Global array to hold log values to print when logging to STDOUT */
 //extern char **log_lines;
diff --git a/src/nwipe.c b/src/nwipe.c
index 02ec8a3..c7586fd 100644
--- a/src/nwipe.c
+++ b/src/nwipe.c
@@ -107,6 +107,9 @@ int main( int argc, char** argv )
                 }
 
         }
+        
+        /* Log the System information */
+        nwipe_log_sysinfo();
 
 
         /* The array of pointers to contexts that will actually be wiped. */