1.1 --- a/main.c	Mon Nov 05 19:06:52 2007 -0500
     1.2 +++ b/main.c	Mon Nov 05 21:55:31 2007 -0500
     1.3 @@ -2,6 +2,8 @@
     1.4  #include <stddef.h>
     1.5  #include <stdio.h>
     1.6  #include <string.h>
     1.7 +#include <sys/types.h>
     1.8 +#include <sys/stat.h>
     1.9  #include <unistd.h>
    1.10  
    1.11  #include <curl/curl.h>
    1.12 @@ -149,23 +151,30 @@
    1.13  	CURL *curl;
    1.14  	CURLcode res;
    1.15  	FILE *fp;
    1.16 +	struct stat buf;
    1.17  
    1.18  	curl = curl_easy_init();
    1.19  	if (curl == NULL)
    1.20  		return 1;
    1.21  
    1.22 -	curl_easy_setopt(curl, CURLOPT_NOPROGRESS, 0);
    1.23 -	fp = fopen("primary.xml.gz", "w");
    1.24 -	curl_easy_setopt(curl, CURLOPT_WRITEDATA, fp);
    1.25 -	curl_easy_setopt(curl, CURLOPT_URL, REPO_URL "/primary.xml.gz");
    1.26 -	res = curl_easy_perform(curl);
    1.27 -	fclose(fp);
    1.28 +	if (stat("primary.xml.gz", &buf) < 0) {
    1.29 +		curl_easy_setopt(curl, CURLOPT_NOPROGRESS, 0);
    1.30 +		fp = fopen("primary.xml.gz", "w");
    1.31 +		curl_easy_setopt(curl, CURLOPT_WRITEDATA, fp);
    1.32 +		curl_easy_setopt(curl, CURLOPT_URL,
    1.33 +				 REPO_URL "/primary.xml.gz");
    1.34 +		res = curl_easy_perform(curl);
    1.35 +		fclose(fp);
    1.36 +	}
    1.37  
    1.38 -	fp = fopen("filelists.xml.gz", "w");
    1.39 -	curl_easy_setopt(curl, CURLOPT_WRITEDATA, fp);
    1.40 -	curl_easy_setopt(curl, CURLOPT_URL, REPO_URL "/filelists.xml.gz");
    1.41 -	res = curl_easy_perform(curl);
    1.42 -	fclose(fp);
    1.43 +	if (stat("filelist.xml.gz", &buf) < 0) {
    1.44 +		fp = fopen("filelists.xml.gz", "w");
    1.45 +		curl_easy_setopt(curl, CURLOPT_WRITEDATA, fp);
    1.46 +		curl_easy_setopt(curl, CURLOPT_URL,
    1.47 +				 REPO_URL "/filelists.xml.gz");
    1.48 +		res = curl_easy_perform(curl);
    1.49 +		fclose(fp);
    1.50 +	}
    1.51  
    1.52  	curl_easy_cleanup(curl);
    1.53