extern const int hashbitlen;
-#define MaxNmberFiles 10
#define skeinVersion "1.3"
const size_t input_minbufsize = 32 * 1024;
const size_t input_maxbufsize = 32 * 1024 * 1024;
result[i] = 0;
}
-int HashWithMode(char file_name[], char MsgDigest[], char mode)
+int HashWithMode(const char file_name[], char MsgDigest[], char mode)
{
/* Try to get file info */
struct stat st;
return 1;
}
-int HashTextMode(char file_name[], char MsgDigest[])
+int PrintHash(const char filename[], int tag, char mode)
{
- return HashWithMode(file_name, MsgDigest, 't');
-}
-
-int HashBinaryMode(char file_name[], char MsgDigest[])
-{
- return HashWithMode(file_name, MsgDigest, 'b');
+ char MsgDigest[hashbitlen/2];
+ if (HashWithMode(filename, MsgDigest, mode) < 0)
+ return -1;
+ if (tag == 1) {
+ printf("skein%d_v%s (%s) = %s\n", hashbitlen, skeinVersion, filename, MsgDigest);
+ } else {
+ printf("%s %s%s\n", MsgDigest, (mode == 'b' ? "*" : ""), filename);
+ }
+ return 1;
}
-void HashStringMode(char Msg[],char MsgDigest[])
+void HashStringMode(const char Msg[], char MsgDigest[])
{
unsigned char output[hashbitlen/4];
- Hash(hashbitlen,(unsigned char*) Msg,sizeof(Msg),output);
+ Hash(hashbitlen, (unsigned char*) Msg, strlen(Msg), output);
printHexMsg(output,hashbitlen/4,MsgDigest);
}
-void HashStdin(char MsgDigest[], int tag)
+void HashStdin(int tag)
{
- char stri[100];
+ char MsgDigest[hashbitlen/2];
+ char stri[100]; /* TODO!!! REWRITE THIS HARDCORE!!! */
char longstring[1000];
longstring[0] = 0;
while(fgets(stri,100,stdin))
strcat(longstring, stri);
HashStringMode(longstring, MsgDigest);
- if (tag) {
+ if (tag == 1) {
printf("skein%d_v%s (-) = %s\n", hashbitlen, skeinVersion, MsgDigest);
} else {
printf("%s *-\n", MsgDigest);
}
}
+int HashMatch(const char StoredDigest[], const char *filename, int quiet)
+{
+ char mode = 't';
+ if (filename[0] == '*') {
+ filename++;
+ mode = 'b';
+ }
+
+ char MsgDigest[hashbitlen/2];
+ if (HashWithMode(filename, MsgDigest, mode) < 0)
+ return 0;
+
+ if (strcmp(MsgDigest, StoredDigest)) {
+ printf("%s: FAILED\n", filename);
+ return 0;
+ }
+ if (quiet > 0)
+ printf("%s: OK\n", filename);
+ return 1;
+}
+
+int VerifyHashesFromFile(FILE *fp, int status, int warn, int quiet)
+{
+ char hash[500], MsgDigest_tmp[hashbitlen/2];
+ int NoMatch = 0, NotProper = 0, Computed = 0;
+ int line = 0;
+
+ while (fgets(hash, sizeof(hash)-1, fp))
+ {
+ char file_tmp[PATH_MAX];
+ line ++;
+ Computed++;
+ unsigned int hashVersion = decomposeHashLine(hash,MsgDigest_tmp,file_tmp);
+ if (hashVersion == -1)
+ {
+ fprintf(stderr, "skein%d: %s is using newer version of skein%d algorithm\n",hashbitlen,file_tmp,hashbitlen);
+ fprintf(stderr, "You should update your algorithm\n");
+ continue;
+ }
+ else if (hashVersion == 0)
+ {
+ fprintf(stderr, "skein%d: %s is using an older version of skein%d algorithm\n",hashbitlen,file_tmp,hashbitlen);
+ fprintf(stderr, "You should use the older algorithm\n");
+ continue;
+ }
+ else if (!isProper(MsgDigest_tmp))
+ {
+ if(status != 1 && warn == 1)
+ fprintf(stderr, "skein%dsum: %s: %d: improperly formatted skein%d checksum line\n",hashbitlen,file_tmp,line,hashbitlen);
+ NotProper ++;
+ NoMatch ++;
+ }
+ else if (!HashMatch(MsgDigest_tmp, file_tmp, quiet))
+ {
+ NoMatch++;
+ }
+ }
+ if(NoMatch)
+ {
+ fprintf(stderr, "skein%dsum: WARNING: %d of %d computed checksums did NOT match\n",
+ hashbitlen,NoMatch,Computed);
+ }
+ if(NotProper)
+ {
+ fprintf(stderr, "skein%dsum: WARNING: %d line is improperly formatted\n",hashbitlen,NotProper);
+ }
+ return (NotProper || NoMatch) ? -1 : 1;
+}
+
int isProper(char MsgDigest[])
{
if ((strlen(MsgDigest) - hashbitlen/4) != 0)
exit(1);
}
+int is_goodfile(const char filename[], int verbose)
+{
+ if (!strcmp(filename, "-"))
+ return 1;
+
+ struct stat s;
+
+ if (stat(filename, &s) < 0) {
+ if (verbose) fprintf(stderr, "skein%dsum: %s: no such file or directory\n", hashbitlen, filename);
+ return 0;
+ }
+
+ if (s.st_mode & (S_IFREG|S_IFBLK)) /* ..regular file or block device? */
+ return 1;
+
+ if (s.st_mode & S_IFDIR) {
+ if (verbose) fprintf(stderr, "skein%dsum: %s: is a directory\n", hashbitlen, filename);
+ return 0;
+ }
+
+ fprintf(stderr, "skein%dsum: %s: wrong filetype 0x%Xu\n", hashbitlen, filename, s.st_mode);
+ return 0;
+}
int main(int argc, char** argv)
{
- char MsgDigest[hashbitlen/2];
- char *list_files[MaxNmberFiles];
int number_files = 0;
+ int first_file = argc;
int binary = -1,
check = -1,
quiet = -1,
}
}
- for (; optind < argc; ++optind)
- {
- struct stat s;
- if (stat(argv[optind], &s) < 0)
- {
- printf("skein%dsum: %s: no such file or directory\n", hashbitlen, argv[optind]);
- errorFound = 1;
- }
- else if (s.st_mode & (S_IFREG|S_IFBLK)) /* ..regular file or block device? */
- {
- if (number_files < MaxNmberFiles) {
- list_files[number_files++] = argv[optind];
- } else {
- printf("skein%dsum: %s: ignore because filelist is too long\n",
- hashbitlen, argv[optind]);
- }
- }
- else if (s.st_mode & S_IFDIR)
- {
- printf("skein%dsum: %s: is a directory\n",hashbitlen,argv[optind]);
- errorFound = 1;
- }
- else
- {
- printf("skein%dsum: %s: wrong filetype 0x%Xu\n",
- hashbitlen, argv[optind], s.st_mode);
- errorFound = 1;
- }
- }
+ first_file = optind;
/*****************************************************************************************
************************************* PROCESSING DATA ***********************************
*****************************************************************************************/
- if(argc > 1 && binary == 1)
+
+ if (check < 0) /* READ FILES, GENERATE CHECKSUMS AND PRINT TO STDOUT.. */
{
- if (check == 1 || quiet == 1 || warn == 1 || status == 1)
+ if (quiet == 1 || warn == 1 || status == 1)
{
- printf("skein%dsum: the --binary and --text options are meaningless when verifying checksums\n",hashbitlen);
+ if(quiet == 1)
+ fprintf(stderr, "skein%dsum: the --quiet option is meaningful only when verifying checksums\n", hashbitlen);
+ if(status ==1)
+ fprintf(stderr, "skein%dsum: the --status option is meaningful only when verifying checksums\n", hashbitlen);
+ if(warn == 1)
+ fprintf(stderr, "skein%dsum: the --warn option is meaningful only when verifying checksums\n", hashbitlen);
TRYHELP_GOODBYE();
}
- if(number_files > 0)
+
+ int file_index;
+ for (file_index = first_file; file_index < argc; file_index++)
{
- int index_files = 0;
- while(index_files < number_files)
- {
- if(hashString == 1)
- {
- printf("skein%dsum: %s: No such file or directory\n",hashbitlen,list_files[index_files]);
- index_files++;
- continue;
- }
- if(HashBinaryMode(list_files[index_files],MsgDigest)!=-1)
- {
- if(tag == 1)
- {
- printf("skein%d_v%s (%s) = %s\n",hashbitlen,skeinVersion,list_files[index_files],MsgDigest);
- }
- else
- {
- printf("%s ",MsgDigest);
- printf("*%s\n",list_files[index_files]);
- }
- }
- index_files++;
+ const char *filename = argv[file_index];
+ if (!is_goodfile(filename, 1)) {
+ errorFound++;
+ continue;
}
+ number_files++;
+
+ if (binary > 0 && hashString == 1) {
+ printf("skein%dsum: %s: No such file or directory\n", hashbitlen, filename);
+ continue;
+ }
+
+ char mode = binary > 0 ? 'b' : 't';
+ if (PrintHash(filename, tag, mode) < 0)
+ errorFound++;
}
- else if(errorFound != 1)
- {
- HashStdin(MsgDigest, tag);
- }
+
+ if (!number_files && !errorFound)
+ HashStdin(tag);
+
+ return (errorFound ? 1 : 0);
}
- else if (argc > 1 && binary == 0) // Text Mode
+ if (check == 1) /* READ LISTFILES, GENERATE HASHES, COMPARE WITH STORED, PRINT RESULT */
{
- if (check == 1 || quiet == 1 || warn == 1 || status == 1)
+ if (tag == 1 || binary >= 0)
{
- printf("skein%dsum: the --binary and --text options are meaningless when verifying checksums\n",hashbitlen);
+ if (tag == 1)
+ fprintf(stderr, "skein%dsum: the --tag option is meaningless when verifying checksums\n", hashbitlen);
+ if (binary >= 0)
+ fprintf(stderr, "skein%dsum: the --text and --binary options are meaningless when verifying checksums\n", hashbitlen);
TRYHELP_GOODBYE();
}
- if(number_files > 0)
- {
- int index_files = 0;
- while(index_files < number_files)
- {
- if(HashTextMode(list_files[index_files],MsgDigest)!=-1)
- {
- if(tag == 1)
- {
- printf("skein%d_v%s (%s) = %s\n",hashbitlen,skeinVersion,list_files[index_files],MsgDigest);
- }
- else
- {
- printf("%s ",MsgDigest);
- printf("%s\n",list_files[index_files]);
- }
- }
- index_files++;
- }
- }
- else if(errorFound != 1)
- {
- HashStdin(MsgDigest, tag);
- }
- }
- else if (argc > 1 && binary == -1)
- {
- if(check == -1)
- {// hashing stdin entries
- if(quiet == 1 || status == 1 || warn == 1)
- {
- if(quiet == 1)
- printf("skein%dsum: the --quiet option is meaningful only when verifying checksums\n",hashbitlen);
- if(status ==1)
- printf("skein%dsum: the --status option is meaningful only when verifying checksums\n",hashbitlen);
- if(warn == 1)
- printf("skein%dsum: the --warn option is meaningful only when verifying checksums\n",hashbitlen);
- TRYHELP_GOODBYE();
- }
- if(number_files > 0)
- {// hashing files
- int index_files = 0;
- while(index_files < number_files)
- {
- if(HashTextMode(list_files[index_files],MsgDigest)!=-1)
- {
- if(tag == 1)
- {
- printf("skein%d_v%s (%s) = %s\n",hashbitlen,skeinVersion,list_files[index_files],MsgDigest);
- }
- else
- {
- printf("%s ",MsgDigest);
- printf("%s\n",list_files[index_files]);
- }
- }
- index_files++;
- }
- }
- else if(errorFound != 1)
- {
- HashStdin(MsgDigest, tag);
- }
- }
- else if(check == 1)
+ int file_index;
+ for (file_index = first_file; file_index < argc; file_index++)
{
- if(tag == 1)
- {
- printf("skein%dsum: the --tag option is meaningless when verifying checksums\n",hashbitlen);
- TRYHELP_GOODBYE();
- }
- int index_files = 0;
- while(index_files < number_files)
- {
- FILE *fp;
- char hash[500], file_name[100], file_tmp[100], MsgDigest_tmp[hashbitlen/2];
- int NoMatch = 0, NotProper = 0, Computed = 0;
- strcpy(file_name,list_files[index_files]);
- //show everything
- int line = 0;
- fp = fopen(file_name,"r");
- if(fp!=NULL)
- {
- while(fgets(hash,500,fp)!=NULL)
- {
- line ++;
- Computed++;
- unsigned int hashVersion = decomposeHashLine(hash,MsgDigest_tmp,file_tmp);
- if(hashVersion == -1)
- {
- printf("skein%d: %s is using newer version of skein%d algorithm\n",hashbitlen,file_tmp,hashbitlen);
- printf("You should update your algorithm\n");
- continue;
- }
- else if( hashVersion == 0)
- {
- printf("skein%d: %s is using an older version of skein%d algorithm\n",hashbitlen,file_tmp,hashbitlen);
- printf("You should use the older algorithm\n");
- continue;
- }
- else
- {
- if(!isProper(MsgDigest_tmp))
- {
- if(status != 1 && warn == 1)
- {
- printf("skein%dsum: %s: %d: improperly formatted skein%d checksum line\n",hashbitlen,file_tmp,line,hashbitlen);
- }
- NotProper ++;
- NoMatch ++;
- continue;
- }
- if(file_tmp[0] == '*')
- {
- int index_file_tmp = 0;
- for( ; file_tmp[index_file_tmp+1]!=0 ; index_file_tmp++)
- {
- file_tmp[index_file_tmp] = file_tmp[index_file_tmp + 1];
- }
- file_tmp[index_file_tmp] = 0;
- HashBinaryMode(file_tmp,MsgDigest);
- }
- else
- {
- HashTextMode(file_tmp,MsgDigest);
- }
-
- if(!strcmp(MsgDigest,MsgDigest_tmp))
- {
- if(quiet != 1)
- {
- printf("%s: OK\n",file_tmp);
- }
- }
- else
- {
- printf("%s: FAILED\n",file_tmp);
- NoMatch ++;
- }
- }
- }
- if(NoMatch)
- {
- printf("skein%dsum: WARNING: %d of %d computed checksums did NOT match\n",
- hashbitlen,NoMatch,Computed);
- }
- if(NotProper)
- {
- printf("skein%dsum: WARNING: %d line is improperly formatted\n",hashbitlen,NotProper);
- }
- }
- else
- {
- printf("skein%dsum: %s: No such file or directory\n",hashbitlen,file_name);
- }
- index_files++;
-
+ const char *filename = argv[file_index];
+ if (!is_goodfile(filename, 1)) {
+ errorFound++;
+ continue;
}
+ number_files++;
- if(number_files == 0)
- {
- char longstring[1000];
- char file_name[30];
- char MsgDigest_tmp[hashbitlen/2];
- int Computed = 0, NotProper = 0, NoMatch = 0 , line = 0;
- while((fgets(longstring,1000,stdin))!=NULL)
- {
- Computed++;
- line ++;
- decomposeHashLine(longstring,MsgDigest_tmp,file_name);
- if(!isProper(MsgDigest_tmp))
- {
- if(status != 1 && warn == 1)
- {
- printf("skein%dsum: %s: %d: improperly formatted skein%d checksum line\n",hashbitlen,file_name,line,hashbitlen);
- }
- NotProper ++;
- NoMatch ++;
- continue;
- }
- if(file_name[0] == '*')
- {
- int index_file_tmp = 0;
- for( ; file_name[index_file_tmp+1]!=0 ; index_file_tmp++)
- {
- file_name[index_file_tmp] = file_name[index_file_tmp + 1];
- }
- file_name[index_file_tmp] = 0;
- HashBinaryMode(file_name,MsgDigest);
- }
- else
- {
- HashTextMode(file_name,MsgDigest);
- }
-
- if(!strcmp(MsgDigest,MsgDigest_tmp))
- {
- if(quiet != 1)
- {
- printf("%s: OK\n",file_name);
- }
- }
- else
- {
- printf("%s: FAILED\n",file_name);
- NoMatch ++;
- }
- }
- if(NoMatch)
- {
- printf("skein%dsum: WARNING: %d of %d computed checksums did NOT match\n",
- hashbitlen,NoMatch,Computed);
- }
- if(NotProper)
- {
- printf("skein%dsum: WARNING: %d line is improperly formatted\n",hashbitlen,NotProper);
- }
-
+ FILE *fp = fopen(filename, "r");
+ if (!fp) {
+ printf("skein%dsum: %s: error %d, %s\n", hashbitlen, filename, errno, strerror(errno));
+ continue;
}
+ if (VerifyHashesFromFile(fp, status, warn, quiet) < 0)
+ errorFound++;
+ fclose(fp);
+ }
+ if (!number_files && !errorFound)
+ if (VerifyHashesFromFile(stdin, status, warn, quiet) < 0)
+ errorFound++;
- }
+ return (errorFound ? 1 : 0);
}
- if (!errorFound && (argc == 1 || (hashString == 1 && !number_files)))
- HashStdin(MsgDigest, 0);
-
return 1;
}
projects / skeinsum.git / commitdiff