is.c

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00001 #include <stdio.h>
00002 #include <string.h>
00003 #include <unistd.h>
00004 #include <grass/gis.h>
00005 
00006 int test_path_file ( const char *path, const char *file )
00007 {
00008     int ret;
00009     char *buf;
00010 
00011     buf = (char *) G_malloc ( strlen(path) + strlen(file) + 2 );
00012     sprintf ( buf, "%s/%s", path, file );
00013 
00014     ret = access(buf,F_OK);
00015     G_free ( buf );
00016 
00017     if ( ret == 0 ) return 1;
00018 
00019     return 0;
00020 }
00021 
00028 int G_is_gisbase (const char *path)    
00029 {
00030     return test_path_file ( path, "etc/element_list" );
00031 }
00032 
00039 int G_is_location (const char *path)    
00040 {
00041     return test_path_file ( path, "PERMANENT/DEFAULT_WIND" );
00042 }
00043 
00050 int G_is_mapset (const char *path)    
00051 {
00052     return test_path_file ( path, "WIND" );
00053 }
00054 

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