return res;
}
+static bool
+initHashMethod(struct HashDirConfiguration *conf, char const *filename)
+{
+ int fd = open(filename, O_RDONLY);
+ if (fd==-1 && conf->method==0)
+ conf->method = hashFunctionDefault();
+
+ if (fd==-1) {
+ assert(conf->method!=0);
+ if (conf->method==0) return false;
+ if (global_args->dry_run) return true; // do not create the file
+
+ fd = Eopen(filename, O_WRONLY|O_CREAT|O_EXCL|O_NOFOLLOW, 0644);
+ TEMP_FAILURE_RETRY(write(fd, conf->method->name, strlen(conf->method->name)));
+ TEMP_FAILURE_RETRY(write(fd, "\n", 1));
+ }
+ else {
+ off_t s = Elseek(fd, 0, SEEK_END);
+ char buf[s + 1];
+ Elseek(fd, 0, SEEK_SET);
+
+ conf->method=0;
+
+ if (s>0 && read(fd, buf, s+1)==s) {
+ while (s>0 && (buf[s-1]=='\0' || buf[s-1]=='\n'))
+ --s;
+ buf[s] = '\0';
+
+ conf->method = hashFunctionFind(buf);
+ if (conf->method==0) {
+ WRITE_MSG(2, "Can not find hash-function '");
+ WRITE_STR(2, buf);
+ WRITE_MSG(2, "'\n");
+ }
+ }
+ else
+ WRITE_MSG(2, "Can not read configuration file for hash-method\n");
+ }
+
+ if (conf->method!=0 && conf->method->digestsize*8>HASH_MAXBITS) {
+ WRITE_MSG(2, "Wow... what an huge hash-function. I can not handle so much bits; giving up...\n");
+ conf->method=0;
+ }
+
+ Eclose(fd);
+ return conf->method!=0;
+}
+
+static bool
+initHashBlocks(struct HashDirConfiguration *conf, char const *filename)
+{
+ int fd = open(filename, O_RDONLY);
+
+ if (fd==-1) {
+ char str[sizeof("all,start,middle,end,")] = { [0] = '\0' };
+
+ if (global_args->dry_run) return true; // do not create the file
+
+ fd = Eopen(filename, O_WRONLY|O_CREAT|O_EXCL|O_NOFOLLOW, 0644);
+
+ if (conf->blocks== hshALL) strcat(str, "all\n");
+ if (conf->blocks & hshSTART) strcat(str, "start\n");
+ if (conf->blocks & hshMIDDLE) strcat(str, "middle\n");
+ if (conf->blocks & hshEND) strcat(str, "end\n");
+
+ EwriteAll(fd, str, strlen(str));
+ }
+ else {
+ off_t s = Elseek(fd, 0, SEEK_END);
+ char buf[s + 1];
+ Elseek(fd, 0, SEEK_SET);
+
+ conf->blocks = hshINVALID;
+
+ if (s>0 && read(fd, buf, s+1)==s) {
+ char *tok = buf;
+ char *sep = "\n,\t ";
+
+ buf[s] = '\0';
+ conf->blocks = hshALL;
+
+ do {
+ char *ptr = strsep(&tok, sep);
+
+ if (*ptr=='#') { sep = "\n"; continue; }
+ sep = "\n,\t ";
+ if (*ptr=='\0') continue;
+
+ if (strcasecmp(ptr, "all") ==0) conf->blocks = hshALL;
+ else {
+ if (conf->blocks==hshINVALID) conf->blocks = 0;
+
+ else if (strcasecmp(ptr, "start") ==0) conf->blocks |= hshSTART;
+ else if (strcasecmp(ptr, "middle")==0) conf->blocks |= hshMIDDLE;
+ else if (strcasecmp(ptr, "end") ==0) conf->blocks |= hshEND;
+ else {
+ WRITE_MSG(2, "Invalid block descriptor '");
+ WRITE_STR(2, ptr);
+ WRITE_MSG(2, "'\n");
+ conf->blocks = hshINVALID;
+ tok = 0;
+ }
+ }
+ } while (tok!=0);
+ }
+ else
+ WRITE_MSG(2, "Can not read configuration file for hash-blocks\n");
+ }
+
+ Eclose(fd);
+ return conf->blocks!=hshINVALID;
+}
+
+static bool
+initHashBlockSize(struct HashDirConfiguration *conf, char const *filename)
+{
+ if (conf->blocks==hshALL) return true;
+
+ int fd = open(filename, O_RDONLY);
+ if (fd==-1) {
+ char str[sizeof("0x") + sizeof(size_t)*3+2] = {
+ [0] = '0', [1] = 'x'
+ };
+ size_t len = utilvserver_fmt_xuint(str+2, conf->blocksize);
+
+ if (global_args->dry_run) return true; // do not create the file
+
+ fd = Eopen(filename, O_WRONLY|O_CREAT|O_EXCL|O_NOFOLLOW, 0644);
+ EwriteAll(fd, str, len+2);
+ }
+ else {
+ off_t s = Elseek(fd, 0, SEEK_END);
+ char buf[s + 1];
+ Elseek(fd, 0, SEEK_SET);
+
+ conf->blocksize = (size_t)(-1);
+
+ if (s>0 && read(fd, buf, s+1)==s) {
+ char *errptr;
+
+ while (s>0 && (buf[s-1]=='\0' || buf[s-1]=='\n'))
+ --s;
+ buf[s] = '\0';
+
+ conf->blocksize = strtol(buf, &errptr, 0);
+ if (errptr==buf || (*errptr!='\0' && *errptr!='\n')) {
+ WRITE_MSG(2, "Failed to parse blocksize '");
+ WRITE_STR(2, buf);
+ WRITE_MSG(2, "'\n");
+ conf->blocksize = (size_t)(-1);
+ }
+ }
+ else
+ WRITE_MSG(2, "Can not read configuration file for hash-blocksize\n");
+ }
+
+ Eclose(fd);
+ return conf->blocksize!=(size_t)(-1);
+}
+
+static bool
+initHashConf(struct HashDirConfiguration *conf, char const *hashdir)
+{
+ size_t l = strlen(hashdir);
+ char tmp[l + MAX(MAX(sizeof("/method"), sizeof("/blocks")),
+ sizeof("/blocksize"))];
+
+ memcpy(tmp, hashdir, l);
+
+ return ((strcpy(tmp+l, "/method"), initHashMethod (conf, tmp)) &&
+ (strcpy(tmp+l, "/blocks"), initHashBlocks (conf, tmp)) &&
+ (strcpy(tmp+l, "/blocksize"), initHashBlockSize(conf, tmp)));
+}
+
static char *
searchHashdir(char const *lhs, char const *rhs)
{
exit(1);
}
+ if (!initHashConf(&global_info.hash_conf, args->hash_dir)) {
+ WRITE_MSG(2, "failed to initialize hash-configuration\n");
+ exit(1);
+ }
+
global_info.hash_dirs_max_size = initHashList(&global_info.hash_dirs,
args->hash_dir);
MatchList_initManually(&global_info.dst_list, 0, strdup(argv[0]), argv[1]);
exit(1);
}
+ if (!initHashConf(&global_info.hash_conf, hashdir)) {
+ WRITE_MSG(2, "failed to initialize hash-configuration\n");
+ exit(1);
+ }
+
global_info.hash_dirs_max_size = initHashList(&global_info.hash_dirs, hashdir);
free(const_cast(char *)(hashdir));