Putting http download function in seperate file (was in main.c).

http_download.c

@@ -0,0 +1,94 @@
+#include "config.h"
+#include "misc.h"
+#include "a_string.h"
+#include "http_download.h"
+#include "gui_inprogress.h"
+#include <curl/curl.h>
+#include <string.h>
+#include <errno.h>
+
+static int progress_download(void *clientp, double dltotal, double dlnow, double ultotal, double ulnow)
+{
+    GtkWidget *progress = (GtkWidget *)clientp;
+    UNUSED(ultotal);
+    UNUSED(ulnow);
+
+    if (dltotal==0)
+        return !gui_inprogress_pulse(progress);
+    return !gui_inprogress_set_fraction(progress,dlnow/dltotal);
+}
+
+
+int http_download(const char *src_url, const char *dst_filename)
+{
+    CURL *curl;
+    CURLcode res;
+    GtkWidget *progress;  
+    a_string_t *user_agent;
+    a_string_t *dst_temp_filename;
+    a_string_t *progress_title;
+    FILE *temp_fd;
+
+    curl = curl_easy_init();
+
+    if (!curl)
+        return 0;
+
+    progress_title    = a_strnew(NULL); 
+    a_sprintf(progress_title,"Updating %s",dst_filename);
+
+    dst_temp_filename = a_strnew(NULL);
+    a_sprintf(dst_temp_filename,"%s.download",dst_filename);
+
+    user_agent = a_strnew(NULL);     
+    a_sprintf(user_agent,"cardpeek/%s",VERSION);
+
+    progress = gui_inprogress_new(a_strval(progress_title),"Please wait...");
+
+    temp_fd = fopen(a_strval(dst_temp_filename),"w");
+
+    curl_easy_setopt(curl,CURLOPT_URL,src_url);
+    curl_easy_setopt(curl,CURLOPT_WRITEDATA, temp_fd);
+    curl_easy_setopt(curl,CURLOPT_USERAGENT, user_agent);
+    curl_easy_setopt(curl,CURLOPT_FAILONERROR, 1L);
+    curl_easy_setopt(curl,CURLOPT_NOPROGRESS, 0L);
+    curl_easy_setopt(curl,CURLOPT_PROGRESSFUNCTION, progress_download);
+    curl_easy_setopt(curl,CURLOPT_PROGRESSDATA, progress);
+
+    res = curl_easy_perform(curl);
+
+    fclose(temp_fd);
+
+    if (res!=CURLE_OK)
+    {
+            log_printf(LOG_ERROR,"Failed to update smartcard_list.txt: %s", curl_easy_strerror(res));
+            unlink(a_strval(dst_temp_filename));
+    }
+    else
+    {
+#ifdef _WIN32
+        unlink(dst_filename);
+#endif
+
+        if (rename(a_strval(dst_temp_filename),dst_filename)==0)
+        {
+            log_printf(LOG_INFO,"Updated %s", dst_filename);
+        }
+        else
+        {
+            /* this should not happen... but you never know */
+            log_printf(LOG_ERROR,"Failed to copy %s as %s: %s", a_strval(dst_temp_filename),dst_filename, strerror(errno));
+            unlink(a_strval(dst_temp_filename));
+        }
+    }
+
+    curl_easy_cleanup(curl);
+
+    gui_inprogress_free(progress);
+
+    a_strfree(user_agent);
+    a_strfree(dst_temp_filename);    
+    a_strfree(progress_title);
+
+    return (res==CURLE_OK);
+} 

http_download.h

@@ -0,0 +1,6 @@
+#ifndef _HTTP_DOWNLOAD_H_
+#define _HTTP_DOWNLOAD_H_
+
+int http_download(const char *src_url, const char *dst_filename);
+
+#endif