Substituting colons with commas, to get comma seperated value (CSV) files.

diff --git a/src/common.c b/src/common.c
index 0b603fa..56ae326 100644 (file)
--- a/src/common.c
+++ b/src/common.c
@@ -155,6 +155,27 @@ int strjoin (char *dst, size_t dst_len,
        return (strlen (dst));
 }
 
+int strsubstitute (char *str, char c_from, char c_to)
+{
+       int ret;
+
+       if (str == NULL)
+               return (-1);
+
+       ret = 0;
+       while (*str != '\0')
+       {
+               if (*str == c_from)
+               {
+                       *str = c_to;
+                       ret++;
+               }
+               str++;
+       }
+
+       return (ret);
+}
+
 int escape_slashes (char *buf, int buf_len)
 {
        int i;
@@ -300,12 +321,13 @@ static int log_create_file (char *filename, char **ds_def, int ds_num)
                return (-1);
        }
 
+       fprintf (log, "epoch");
        for (i = 0; i < ds_num; i++)
        {
                char *name;
                char *tmp;
 
-               name = index (ds_def[i], ':');
+               name = strchr (ds_def[i], ':');
                if (name == NULL)
                {
                        syslog (LOG_WARNING, "Invalid DS definition '%s' for %s",
@@ -316,7 +338,7 @@ static int log_create_file (char *filename, char **ds_def, int ds_num)
                }
 
                name += 1;
-               tmp = index(name, ':');
+               tmp = strchr (name, ':');
                if (tmp == NULL)
                {
                        syslog (LOG_WARNING, "Invalid DS definition '%s' for %s",
@@ -326,9 +348,9 @@ static int log_create_file (char *filename, char **ds_def, int ds_num)
                        return (-1);
                }
 
-               if (i != 0)
-                       fprintf (log, ":");
-               fprintf(log, "%.*s", (tmp - name), name);
+               /* The `%.*s' is needed because there is no null-byte behind
+                * the name. */
+               fprintf(log, ",%.*s", (tmp - name), name);
        }
        fprintf(log, "\n");
        fclose(log);
@@ -344,6 +366,9 @@ static int log_update_file (char *host, char *file, char *values,
        struct stat statbuf;
        char full_file[1024];
 
+       /* Cook the values a bit: Substitute colons with commas */
+       strsubstitute (values, ':', ',');
+
        /* host == NULL => local mode */
        if (host != NULL)
        {
@@ -367,6 +392,8 @@ static int log_update_file (char *host, char *file, char *values,
                time_t now;
                struct tm *tm;
 
+               /* TODO: Find a way to minimize the calls to `localtime', since
+                * they are pretty expensive.. */
                now = time (NULL);
                tm = localtime (&now);