extract generation time of packages file

diff --git a/src/libimcv/plugins/imv_os/pacman.c b/src/libimcv/plugins/imv_os/pacman.c
index 737c5ac..1b8e53d 100644 (file)
--- a/src/libimcv/plugins/imv_os/pacman.c
+++ b/src/libimcv/plugins/imv_os/pacman.c
@@ -20,6 +20,7 @@
 #include <string.h>
 #include <errno.h>
 #include <syslog.h>
+#include <time.h>
 
 #include <library.h>
 #include <utils/debug.h>
@@ -85,6 +86,42 @@ static void usage(void)
 }
 
 /**
+ * Extract the time the package file was generated
+ */
+static time_t extract_time(char *line)
+{
+       struct tm t;
+       char wday[4], mon[4];
+       char* months[] = { "Jan", "Feb", "Mar", "Apr", "May", "Jun",
+                                          "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" };
+       int i;
+       
+       if (sscanf(line, "Generated: %3s %3s %2d %2d:%2d:%2d %4d UTC", wday, mon,
+                          &t.tm_mday, &t.tm_hour, &t.tm_min, &t.tm_sec, &t.tm_year) != 7)
+       {
+               return UNDEFINED_TIME;
+       }
+       t.tm_isdst = 0; 
+       t.tm_year -= 1900;
+       t.tm_mon = 12;
+
+       for (i = 0; i < countof(months); i++)
+       {
+               if (streq(mon, months[i]))
+               {
+                       t.tm_mon = i;
+                       break;
+               }
+       }
+       if (t.tm_mon == 12)
+       {
+               return UNDEFINED_TIME;
+       }
+
+       return mktime(&t) - timezone;
+}
+
+/**
  * Process a package file and store updates in the database
  */
 static void process_packages(char *filename, char *product, bool update)
@@ -102,7 +139,7 @@ static void process_packages(char *filename, char *product, bool update)
        file = fopen(filename, "r");
        if (!file)
        {
-               fprintf(stderr, "could not open \"%s\"", filename);
+               fprintf(stderr, "could not open \"%s\"\n", filename);
                exit(EXIT_FAILURE);
        }
 
@@ -152,12 +189,26 @@ static void process_packages(char *filename, char *product, bool update)
                bool security, update_version = TRUE;
                int current_security;
                u_int32_t gid = 0, vid = 0;
+               time_t generation_time;
 
                count++;
-               if (count == 1 || count == 3)
+               if (count == 1)
                {
                        printf("%s", line);
                }
+               if (count == 3)
+               {
+                       generation_time = extract_time(line);
+
+                       if (generation_time == UNDEFINED_TIME)
+                       {
+                               fprintf(stderr, "could not extract generation time\n");
+                               fclose(file);
+                               db->destroy(db);
+                               exit(EXIT_FAILURE);
+                       }
+                       printf("Generated: %T\n", &generation_time, TRUE);
+               }
                if (count < 7)
                {
                        continue;