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thd_idcode.c
Go to the documentation of this file.00001 /***************************************************************************** 00002 Major portions of this software are copyrighted by the Medical College 00003 of Wisconsin, 1994-2000, and are released under the Gnu General Public 00004 License, Version 2. See the file README.Copyright for details. 00005 ******************************************************************************/ 00006 00007 #include "mrilib.h" 00008 #include <time.h> 00009 #include "thd.h" 00010 00011 /*-----------------------------------------------------------------------*/ 00012 /*! Routine to return a (hopefully) unique ID code to be used to identify 00013 a dataset to other datasets. 00014 -------------------------------------------------------------------------*/ 00015 00016 MCW_idcode MCW_new_idcode(void) 00017 { 00018 MCW_idcode newid ; 00019 time_t tnow ; 00020 int nn ; 00021 00022 UNIQ_idcode_fill( newid.str ) ; /* thd_md5.c */ 00023 00024 tnow = time(NULL) ; 00025 MCW_strncpy( newid.date , ctime(&tnow) , MCW_IDDATE ) ; 00026 nn = strlen(newid.date) ; 00027 if( nn > 0 && newid.date[nn-1] == '\n' ) newid.date[nn-1] = '\0' ; 00028 00029 return newid ; 00030 } 00031 00032 /*-----------------------------------------------------------------------*/ 00033 /*! Replace the string part of the ID code with a deterministic hash. 00034 -------------------------------------------------------------------------*/ 00035 00036 void MCW_hash_idcode( char *hstring , THD_3dim_dataset *dset ) /* 06 May 2005 */ 00037 { 00038 char *hhh , *rp , rpath[2048] ; 00039 if( hstring == NULL || *hstring == '\0' && !ISVALID_DSET(dset) ) return ; 00040 rp = realpath( hstring , rpath ) ; if( rp == NULL ) rp = hstring ; 00041 hhh = UNIQ_hashcode(rp) ; 00042 MCW_strncpy( dset->idcode.str+3, hhh+3, MCW_IDSIZE-3 ); free((void *)hhh); 00043 return ; 00044 }
