2 * viking -- GPS Data and Topo Analyzer, Explorer, and Manager
4 * Copyright (C) 2003-2005, Evan Battaglia <gtoevan@gmx.net>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
30 #include <sys/types.h>
35 #include "curl_download.h"
43 #define access(a,b) _access(a,b)
44 #define close(a) closesocket(a)
46 char *dirname ( char * dir )
48 char *tmp = dir + strlen(dir) - 1;
49 while ( tmp != dir && *tmp != '\\' )
58 #include <sys/types.h>
65 static int download( const char *hostname, const char *uri, const char *fn, int sendhostname)
72 if ( access ( fn, F_OK ) == 0 )
74 /* File exists: return */
79 char *tmp = g_strdup ( fn );
81 mkdir( dirname ( dirname ( tmp ) ) );
82 g_free ( tmp ); tmp = g_strdup ( fn );
83 mkdir( dirname ( tmp ) );
85 mkdir( dirname ( dirname ( tmp ) ), 0777 );
86 g_free ( tmp ); tmp = g_strdup ( fn );
87 mkdir( dirname ( tmp ), 0777 );
91 /* create placeholder file */
92 if ( ! (f = fopen ( fn, "w+b" )) ) /* immediately open file so other threads won't -- prevents race condition */
97 tmpfilename = g_strdup_printf("%s.tmp", fn);
98 f = fopen ( tmpfilename, "w+b" );
100 g_free ( tmpfilename );
101 remove ( fn ); /* couldn't create temporary. delete 0-byte file. */
105 /* Call the backend function */
107 ret = curl_download_get_url ( hostname, uri, f );
109 ret = http_download_get_url ( hostname, uri, f, 0, sendhostname );
112 if (ret == -1 || ret == 1 || ret == -2)
115 remove ( tmpfilename );
116 g_free ( tmpfilename );
121 rename ( tmpfilename, fn ); /* move completely-downloaded file to permanent location */
122 g_free ( tmpfilename );
126 /* success = 0, -1 = couldn't connect, -2 HTTP error, -3 file exists, -4 couldn't write to file... */
127 /* uri: like "/uri.html?whatever" */
128 /* only reason for the "wrapper" is so we can do redirects. */
129 int a_http_download_get_url ( const char *hostname, const char *uri, const char *fn )
131 return download ( hostname, uri, fn, 1 );
134 int a_http_download_get_url_nohostname ( const char *hostname, const char *uri, const char *fn )
136 return download ( hostname, uri, fn, 0 );