| /* |
| * R : A Computer Language for Statistical Data Analysis |
| * Copyright (C) 2003-7 The R Core Team. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, a copy is available at |
| * https://www.R-project.org/Licenses/ |
| */ |
| |
| /* <UTF8> OK since this is intended to treat chars as byte streams */ |
| |
| #include "tools.h" |
| #define ROL_UNUSED |
| #include "md5.h" |
| |
| /* .Call so manages R_alloc stack */ |
| SEXP Rmd5(SEXP files) |
| { |
| SEXP ans; |
| int i, j, nfiles = length(files), res; |
| const char *path; |
| char out[33]; |
| FILE *fp; |
| unsigned char resblock[16]; |
| |
| if(!isString(files)) error(_("argument 'files' must be character")); |
| PROTECT(ans = allocVector(STRSXP, nfiles)); |
| for(i = 0; i < nfiles; i++) { |
| path = translateChar(STRING_ELT(files, i)); |
| #ifdef _WIN32 |
| fp = fopen(path, "rb"); |
| #else |
| fp = fopen(path, "r"); |
| #endif |
| if(!fp) { |
| SET_STRING_ELT(ans, i, NA_STRING); |
| } else { |
| res = md5_stream(fp, &resblock); |
| if(res) { |
| warning(_("md5 failed on file '%s'"), path); |
| SET_STRING_ELT(ans, i, NA_STRING); |
| } else { |
| for(j = 0; j < 16; j++) |
| sprintf (out+2*j, "%02x", resblock[j]); |
| SET_STRING_ELT(ans, i, mkChar(out)); |
| } |
| fclose(fp); |
| } |
| } |
| UNPROTECT(1); |
| return ans; |
| } |