int main() { ETERM *tuplep, *intp; ETERM *fnp, *argp; int res; byte buf[100]; long allocated, freed; erl_init(NULL, 0); while (read_cmd(buf) > 0) { tuplep = erl_decode(buf); fnp = erl_element(1, tuplep); argp = erl_element(2, tuplep); if (strncmp(ERL_ATOM_PTR(fnp), "foo", 3) == 0) { res = foo(ERL_INT_VALUE(argp)); } else if (strncmp(ERL_ATOM_PTR(fnp), "bar", 17) == 0) { res = bar(ERL_INT_VALUE(argp)); } intp = erl_mk_int(res); erl_encode(intp, buf); write_cmd(buf, erl_term_len(intp)); erl_free_compound(tuplep); erl_free_term(fnp); erl_free_term(argp); erl_free_term(intp); } }
void respond(ETERM *r) { byte buf[2048]; bzero(buf, 2048); erl_encode(r, buf); write_cmd(buf, erl_term_len(r)); fprintf(log, "sending response back\n"); }
int main() { ETERM *tuplep; ETERM *fnp; ETERM *args; byte buf[100]; const char* func_name; #ifdef __WIN32__ /* Attention Windows programmers: you need [to pay Serge Aleynikov a * beer because he's the one who figured out how to get this to work * on windows :)] explicitly set mode of stdin/stdout to binary or * else the port program won't work. */ _setmode(_fileno(stdout), _O_BINARY); _setmode(_fileno(stdin), _O_BINARY); #endif eNotify_init(); erl_init(NULL, 0); while (read_cmd(buf) > 0) { tuplep = erl_decode(buf); fnp = erl_element(1, tuplep); func_name = (const char*)ERL_ATOM_PTR(fnp); args = erl_element(2, tuplep); // MATCH FIRST! -> REMEMBER THAT! if (strncmp(func_name, "get_error_desc", 14) == 0) { local_get_error_desc(args); } else if (strncmp(func_name, "add_watch", 9) == 0) { local_add_watch(args); } else if (strncmp(func_name, "remove_watch", 12) == 0) { local_remove_watch(args); } else { byte buf[10]; ETERM *nok = erl_mk_atom("undef"); // alloc nok erl_encode(nok, buf); write_cmd(buf, erl_term_len(nok)); erl_free_term(nok); // free nok } erl_free_compound(tuplep); erl_free_term(fnp); } return 0; }
void local_remove_watch(ETERM* args) { byte buf[100]; ETERM *resp; ETERM *watchIDp = erl_element(1, args); int watchID = ERL_INT_VALUE(watchIDp); eNotify_removeWatch(watchID); // Build response resp = erl_mk_atom("ok"); // alloc resp erl_encode(resp, buf); write_cmd(buf, erl_term_len(resp)); erl_free_term(resp); // free resp }
static int process_reply(ETERM *pid, int cmd, const char *res) { ETERM *result; int len, retval; byte *buf; result = erl_format("{~i, ~w, ~s}", cmd, pid, res); len = erl_term_len(result); buf = erl_malloc(len); erl_encode(result, buf); retval = write_cmd(buf, len); erl_free_term(result); erl_free(buf); return retval; }
void local_get_error_desc(ETERM* args) { byte buf[100]; ETERM *resp; ETERM *errorCodep = erl_element(1, args); long errorCode = (long)ERL_INT_VALUE(errorCodep); char errorDesc[1024]; eNotify_getErrorDesc(errorCode, errorDesc, 1024); // Build response resp = erl_mk_string(errorDesc); // alloc resp erl_encode(resp, buf); write_cmd(buf, erl_term_len(resp)); erl_free_term(resp); // free resp }
void local_add_watch(ETERM* args) { ETERM *pathp = erl_element(1, args); int pathLength = ERL_BIN_SIZE(pathp); char *path = ERL_BIN_PTR(pathp); ETERM *notifyFilterp = erl_element(2, args); unsigned int notifyFilter_ui = ERL_INT_UVALUE(notifyFilterp); long notifyFilter = (long)notifyFilter_ui; ETERM *watchSubdirsp = erl_element(3, args); int watchSubdirs = ERL_INT_VALUE(watchSubdirsp); int watchID = eNotify_addWatch(path, pathLength, notifyFilter, watchSubdirs); // Prepare response ETERM *tuplep; ETERM *tupleArray[2]; if (watchID < 0) { long errorCode = (long)(-watchID); char errorDesc[1024]; eNotify_getErrorDesc(errorCode, errorDesc, 1024); tupleArray[0] = erl_mk_atom("error"); tupleArray[1] = erl_mk_string(errorDesc); } else if (0 == watchID) { // this may happen if there's a problem converting // a path from utf8 to UTF16 tupleArray[0] = erl_mk_atom("error"); tupleArray[1] = erl_mk_string("internal_error"); } else { tupleArray[0] = erl_mk_atom("ok"); tupleArray[1] = erl_mk_int(watchID); } char buf[1024]; tuplep = erl_mk_tuple(tupleArray, 2); erl_encode(tuplep, buf); write_cmd(buf, erl_term_len(tuplep)); erl_free_array(tupleArray, 2); // free contents from tupleArray }
void eNotifyCallback(int watchID, int action, const void* rootPath, int rootPathLength, const void* filePath, int filePathLength) { // MAX_FILE_PATHNAME_LENGTH * 2 because we are passing 2 paths byte buf[MAX_FILE_PATHNAME_LENGTH*2]; ETERM *tuplep; // Build response ETERM *tupleArray[4]; tupleArray[0] = erl_mk_int(watchID); tupleArray[1] = erl_mk_int(action); tupleArray[2] = erl_mk_binary(rootPath, rootPathLength); tupleArray[3] = erl_mk_binary(filePath, filePathLength); tuplep = erl_mk_tuple(tupleArray, 4); erl_encode(tuplep, buf); write_cmd(buf, erl_term_len(tuplep)); // free contents from tupleArray erl_free_array(tupleArray, 4); }
void * handle_command(void *buf){ ETERM *tuplep, *file; ETERM *fnp; tuplep = erl_decode(buf); fnp = erl_element(1, tuplep); char * path = "./priv/sample_images/ABST.00000000.tif"; IplImage *source = cvLoadImage( path, CV_LOAD_IMAGE_GRAYSCALE ); CvMat* pngImage = img(source); //if (strncmp(ERL_ATOM_PTR(fnp), "img", 3) == 0) { // no-op for now? //} file = erl_mk_binary((char *)pngImage->data.ptr, pngImage->cols); erl_encode(file, buf); write_cmd(buf, erl_term_len(file)); erl_free_compound(tuplep); erl_free_term(fnp); erl_free_term(file); }
static int process_reply(ETERM *pid, int cmd, int res) { ETERM *result; int len, retval; const char *errtxt; byte *buf; if (res == PAM_SUCCESS) result = erl_format("{~i, ~w, true}", cmd, pid); else { errtxt = pam_strerror(NULL, res); result = erl_format("{~i, ~w, {false, ~s}}", cmd, pid, errtxt); } len = erl_term_len(result); buf = erl_malloc(len); erl_encode(result, buf); retval = write_cmd((char *)buf, len); erl_free_term(result); erl_free(buf); return retval; }
int write_msg(ETERM *msg) { unsigned char *buf; msglen_t nlen, buflen; buflen = erl_term_len(msg); buf = (unsigned char *)safe_malloc(buflen); erl_encode(msg, buf); erl_free_term(msg); nlen = htonl(buflen); if (restartable_write((unsigned char *)&nlen, sizeof(nlen)) == -1) { free(buf); return -1; } if (restartable_write(buf, buflen) == -1) { free(buf); return -1; } free(buf); return 0; }
int erl_global_register(int fd, const char *name, ETERM *pid) { char buf[EISMALLBUF]; char *bufp=buf; char tmpbuf[64]; int index = 0; erlang_pid self; erlang_msg msg; int needlink, needatom, needmonitor; int arity; int version; int msglen; int i; /* get that pid into a better format */ if (!erl_encode(pid,(unsigned char*)buf)) return -1; if (ei_decode_version(buf,&index,&version) || ei_decode_pid(buf,&index,&self)) return -1; /* set up rpc arguments */ /* { PidFrom, { call, Mod, Fun, Args, user }} */ index = 0; ei_encode_version(buf,&index); ei_encode_tuple_header(buf,&index,2); ei_encode_pid(buf,&index,&self); /* PidFrom */ ei_encode_tuple_header(buf,&index,5); ei_encode_atom(buf,&index,"call"); /* call */ ei_encode_atom(buf,&index,"global"); /* Mod */ ei_encode_atom(buf,&index,"register_name_external"); /* Fun */ ei_encode_list_header(buf,&index,3); /* Args: [ name, self(), cnode ] */ ei_encode_atom(buf,&index,name); ei_encode_pid(buf,&index,&self); ei_encode_tuple_header(buf,&index,2); ei_encode_atom(buf,&index,"global"); /* special "resolve" treatment */ ei_encode_atom(buf,&index,"cnode"); /* i.e. we get a SEND when conflict */ ei_encode_empty_list(buf,&index); ei_encode_atom(buf,&index,"user"); /* user */ /* make the rpc call */ if (ei_send_reg_encoded(fd,&self,"rex",buf,index)) return -1; /* get the reply: expect link and an atom, or just an atom */ needlink = needatom = needmonitor = 1; while (1) { /* get message */ while (1) { index = EISMALLBUF; if (!(i = ei_recv_internal(fd,&bufp,&index,&msg,&msglen,1,0))) continue; else break; } switch (i) { case ERL_LINK: /* got link */ if (!needlink) return -1; needlink = 0; break; case ERL_MONITOR_P-10: /* got monitor */ if (!needmonitor) { return -1;} needmonitor = 0; break; case ERL_SEND: /* got message - does it contain our atom? */ if (!needatom) return -1; else { /* expecting { rex, yes } */ index = 0; if (ei_decode_version(buf,&index,&version) || ei_decode_tuple_header(buf,&index,&arity) || (arity != 2) || ei_decode_atom(buf,&index,tmpbuf) || strcmp(tmpbuf,"rex") || ei_decode_atom(buf,&index,tmpbuf) || strcmp(tmpbuf,"yes")) return -1; /* bad response from other side */ /* we're done */ return 0; } break; default: return -1; /* something else */ } } return 0; }
int main(int argc, char **argv) { libusb_context *ctx = NULL; dongleHandle dongle; int option; int address; int bus; ETERM *tuplep; ETERM *functionp; unsigned char buf[1024]; const char* func_name; address = -1; bus = -1; while ((option = getopt(argc, argv, "p:b:")) != -1) { switch (option) { case 'p': address = atoi(optarg); break; case 'b': bus = atoi(optarg); break; default: return 1; } } if (bus == -1 || address == -1) { return 1; } erl_init(NULL, 0); initDongle(ctx); dongle = getDongle(ctx, address, bus); if (dongle == NULL) { ERL_WRITE_ERROR("not_found"); exitDongle(ctx); return 1; } while (read_cmd(buf) > 0) { tuplep = erl_decode(buf); functionp = erl_element(1, tuplep); func_name = (const char*)ERL_ATOM_PTR(functionp); if (strncmp(func_name, "derive", 6) == 0){ hsm_derive(dongle, tuplep); } else if (strncmp(func_name, "import", 6) == 0){ hsm_import(dongle, tuplep); } else if (strncmp(func_name, "pin", 3) == 0){ hsm_pin(dongle, tuplep); } else if (strncmp(func_name, "pubkey", 6) == 0){ hsm_pubkey(dongle, tuplep); } else if (strncmp(func_name, "random", 6) == 0){ hsm_random(dongle, tuplep); } else if (strncmp(func_name, "sign", 4) == 0){ hsm_sign(dongle, tuplep); } else if (strncmp(func_name, "verify", 6) == 0){ hsm_verify(dongle, tuplep); } else if (strncmp(func_name, "close", 5) == 0){ break; } else { ERL_WRITE_ERROR("undef") } erl_free_compound(tuplep); erl_free_term(functionp); } closeDongle(dongle); exitDongle(ctx); ETERM *atom; atom = erl_mk_atom("closed"); unsigned char closed_buf[erl_term_len(atom)]; erl_encode(atom, closed_buf); write_cmd(closed_buf, erl_term_len(atom)); erl_free_term(atom); fprintf(stderr, "CLOSED"); return 0; }
int main(void) #endif { ei_x_buff eix; int index = 0; ETERM **etermpp = NULL, *etermp = NULL; char *charp = NULL; unsigned char uchar, **ucharpp = NULL, *ucharp = NULL; void *voidp = NULL; Erl_Heap *erl_heapp = NULL; int intx = 0; int *intp = NULL; unsigned int uintx, *uintp; unsigned long *ulongp = NULL; long longx = 0; double doublex = 0.0; short shortx = 42; FILE *filep = NULL; Erl_IpAddr erl_ipaddr = NULL; ErlMessage *erlmessagep = NULL; ErlConnect *erlconnectp = NULL; struct hostent *hostp = NULL; struct in_addr *inaddrp = NULL; /* Converion to erl_interface format is in liberl_interface */ intx = erl_errno; ei_encode_term(charp, &index, voidp); ei_x_encode_term(&eix, voidp); ei_decode_term(charp, &index, voidp); erl_init(voidp, longx); erl_connect_init(intx, charp,shortx); erl_connect_xinit(charp,charp,charp,erl_ipaddr,charp,shortx); erl_connect(charp); erl_xconnect(erl_ipaddr,charp); erl_close_connection(intx); erl_receive(intx, ucharp, intx); erl_receive_msg(intx, ucharp, intx, erlmessagep); erl_xreceive_msg(intx, ucharpp, intp, erlmessagep); erl_send(intx, etermp, etermp); erl_reg_send(intx, charp, etermp); erl_rpc(intx,charp,charp,etermp); erl_rpc_to(intx,charp,charp,etermp); erl_rpc_from(intx,intx,erlmessagep); erl_publish(intx); erl_accept(intx,erlconnectp); erl_thiscookie(); erl_thisnodename(); erl_thishostname(); erl_thisalivename(); erl_thiscreation(); erl_unpublish(charp); erl_err_msg(charp); erl_err_quit(charp); erl_err_ret(charp); erl_err_sys(charp); erl_cons(etermp,etermp); erl_copy_term(etermp); erl_element(intx,etermp); erl_hd(etermp); erl_iolist_to_binary(etermp); erl_iolist_to_string(etermp); erl_iolist_length(etermp); erl_length(etermp); erl_mk_atom(charp); erl_mk_binary(charp,intx); erl_mk_empty_list(); erl_mk_estring(charp, intx); erl_mk_float(doublex); erl_mk_int(intx); erl_mk_list(etermpp,intx); erl_mk_pid(charp,uintx,uintx,uchar); erl_mk_port(charp,uintx,uchar); erl_mk_ref(charp,uintx,uchar); erl_mk_long_ref(charp,uintx,uintx,uintx,uchar); erl_mk_string(charp); erl_mk_tuple(etermpp,intx); erl_mk_uint(uintx); erl_mk_var(charp); erl_print_term(filep,etermp); /* erl_sprint_term(charp,etermp); */ erl_size(etermp); erl_tl(etermp); erl_var_content(etermp, charp); erl_format(charp); erl_match(etermp, etermp); erl_global_names(intx, intp); erl_global_register(intx, charp, etermp); erl_global_unregister(intx, charp); erl_global_whereis(intx, charp, charp); erl_init_malloc(erl_heapp,longx); erl_alloc_eterm(uchar); erl_eterm_release(); erl_eterm_statistics(ulongp,ulongp); erl_free_array(etermpp,intx); erl_free_term(etermp); erl_free_compound(etermp); erl_malloc(longx); erl_free(voidp); erl_compare_ext(ucharp, ucharp); erl_decode(ucharp); erl_decode_buf(ucharpp); erl_encode(etermp,ucharp); erl_encode_buf(etermp,ucharpp); erl_ext_size(ucharp); erl_ext_type(ucharp); erl_peek_ext(ucharp,intx); erl_term_len(etermp); erl_gethostbyname(charp); erl_gethostbyaddr(charp, intx, intx); erl_gethostbyname_r(charp, hostp, charp, intx, intp); erl_gethostbyaddr_r(charp, intx, intx, hostp, charp, intx, intp); erl_init_resolve(); erl_distversion(intx); erl_epmd_connect(inaddrp); erl_epmd_port(inaddrp, charp, intp); charp = ERL_ATOM_PTR(etermp); intx = ERL_ATOM_SIZE(etermp); ucharp = ERL_BIN_PTR(etermp); intx = ERL_BIN_SIZE(etermp); etermp = ERL_CONS_HEAD(etermp); etermp = ERL_CONS_TAIL(etermp); intx = ERL_COUNT(etermp); doublex= ERL_FLOAT_VALUE(etermp); uintx = ERL_INT_UVALUE(etermp); intx = ERL_INT_VALUE(etermp); intx = ERL_IS_ATOM(etermp); intx = ERL_IS_BINARY(etermp); intx = ERL_IS_CONS(etermp); intx = ERL_IS_EMPTY_LIST(etermp); intx = ERL_IS_FLOAT(etermp); intx = ERL_IS_INTEGER(etermp); intx = ERL_IS_LIST(etermp); intx = ERL_IS_PID(etermp); intx = ERL_IS_PORT(etermp); intx = ERL_IS_REF(etermp); intx = ERL_IS_TUPLE(etermp); intx = ERL_IS_UNSIGNED_INTEGER(etermp); uchar = ERL_PID_CREATION(etermp); charp = ERL_PID_NODE(etermp); uintx = ERL_PID_NUMBER(etermp); uintx = ERL_PID_SERIAL(etermp); uchar = ERL_PORT_CREATION(etermp); charp = ERL_PORT_NODE(etermp); uintx = ERL_PORT_NUMBER(etermp); uchar = ERL_REF_CREATION(etermp); intx = ERL_REF_LEN(etermp); charp = ERL_REF_NODE(etermp); uintx = ERL_REF_NUMBER(etermp); uintp = ERL_REF_NUMBERS(etermp); etermp = ERL_TUPLE_ELEMENT(etermp,intx); intx = ERL_TUPLE_SIZE(etermp); return BUFSIZ + EAGAIN + EHOSTUNREACH + EINVAL + EIO + EMSGSIZE + ENOMEM + ERL_ATOM + ERL_BINARY + ERL_ERROR + ERL_EXIT + ERL_FLOAT + ERL_INTEGER + ERL_LINK + ERL_LIST + ERL_MSG + ERL_NO_TIMEOUT + ERL_PID + ERL_PORT + ERL_REF + ERL_REG_SEND + ERL_SEND + ERL_SMALL_BIG + ERL_TICK + ERL_TIMEOUT + ERL_TUPLE + ERL_UNLINK + ERL_U_INTEGER + ERL_U_SMALL_BIG + ERL_VARIABLE + ETIMEDOUT + MAXNODELEN + MAXREGLEN; }
int main(int argc, char* argv[]) { ETERM *tuplep, *fnp, *pathp, *binp, *widthp, *heightp; ETERM *res_tuplep; ETERM *res_arrp[2]; ETERM *res_ok_atomp, *res_error_atomp, *res_error_cause_atomp; int idx = 1; byte *buf = malloc(INIT_BUF_SIZE); int buf_len = INIT_BUF_SIZE; int res_len; erl_init(NULL, 0); //Create common atoms(ok, error) res_ok_atomp = erl_mk_atom("ok"); res_error_atomp = erl_mk_atom("error"); res_error_cause_atomp = erl_mk_atom("resize failed"); while (read_cmd(&buf, &buf_len) > 0) { tuplep = erl_decode(buf); fnp = erl_element(idx++, tuplep); pathp = erl_element(idx++, tuplep); binp = erl_element(idx++, tuplep); widthp = erl_element(idx++, tuplep); heightp = erl_element(idx++, tuplep); if (strncmp(ERL_ATOM_PTR(fnp), "resize", 6) == 0) { char* algop = ERL_ATOM_PTR(fnp) + 6; resizerl_handler* rhp = (strncmp(algop, "_opencv", 7) == 0) ? resizerl_impls[0] : NULL; if (rhp == NULL) { exit(1); } // ERL_INT_VALUE, ERL_BIN_PTR, ERL_BIN_SIZE void* dp = NULL; rhp->exec(ERL_BIN_PTR(binp), ERL_BIN_SIZE(binp), ERL_BIN_PTR(pathp), ERL_BIN_SIZE(pathp), ERL_INT_VALUE(widthp), ERL_INT_VALUE(heightp), &dp); if (dp == NULL) { exit(2); } unsigned char* dst; int dst_size; rhp->get_result(dp, &dst, &dst_size); res_arrp[0] = res_ok_atomp; res_arrp[1] = erl_mk_binary((const char*)dst, dst_size); res_tuplep = erl_mk_tuple(res_arrp, 2); res_len = erl_term_len(res_tuplep); if (res_len > buf_len) { byte* new_buf = (byte*)realloc((void*)buf, res_len); if (new_buf == NULL) { exit(3); } buf = new_buf; buf_len = res_len; } erl_encode(res_tuplep, buf); write_cmd(buf, erl_term_len(res_tuplep)); erl_free_term(res_arrp[1]); erl_free_term(res_tuplep); rhp->release(&dp); } else { res_arrp[0] = res_error_atomp; res_arrp[1] = res_error_cause_atomp; res_tuplep = erl_mk_tuple(res_arrp, 2); if (res_len > buf_len) { byte* new_buf = (byte*)realloc((void*)buf, res_len); if (new_buf == NULL) { exit(4); } buf = new_buf; buf_len = res_len; } erl_encode(res_tuplep, buf); write_cmd(buf, erl_term_len(res_tuplep)); erl_free_term(res_tuplep); } erl_free_compound(tuplep); erl_free_term(fnp); erl_free_term(pathp); erl_free_term(binp); erl_free_term(widthp); erl_free_term(heightp); idx = 1; } // normal return 0; }
/** * Read an integer giving the maximum size of a fragment. */ int main( int argc, char *argv[] ) { int fail = 0; erl_init(NULL,0); #ifdef _DEBUG openlog( "erlang-port", 0, LOG_USER ); syslog( LOG_INFO, "%s is alive\n", argv[0] ); #endif while( ! fail ) { ETERM *fragsize_term = NULL; byte buf[100 /*WIRE_SIZEOF_INT*/]; if( read_lpm( buf, sizeof(buf) ) <= 0 ) { #ifdef _DEBUG syslog( LOG_ERR, "failed reading fragment size:\n" ); #endif break; } fragsize_term = erl_decode( buf ); if( fragsize_term ) { ETERM **array; unsigned int count; unsigned int SIZEOF_FRAGMENT = ERL_INT_UVALUE(fragsize_term); erl_free_term( fragsize_term ); if( SIZEOF_FRAGMENT == 0 /* the explicit signal to shutdown */ ) break; #ifdef _DEBUG syslog( LOG_INFO, "received sizeof fragment: %d\n", SIZEOF_FRAGMENT ); #endif count = min_packet_count( SIZEOF_IMAGE, SIZEOF_FRAGMENT ); array = calloc( count, sizeof(ETERM*) ); if( array ) { ETERM *frags; for(int i = 0; i < count; i++ ) { const size_t S = i+1 < count ? SIZEOF_FRAGMENT : (SIZEOF_IMAGE % SIZEOF_FRAGMENT); array[i] = erl_mk_binary( TEST_IMAGE + i*SIZEOF_FRAGMENT, S ); if( array[i] == NULL ) { count = i; // ...for erl_free_array below. fail = 1; break; } } if( fail ) goto cleanup; frags = erl_mk_list( array, count ); if( frags ) { const int nbyte = erl_term_len( frags ); byte *buf = calloc( nbyte, sizeof(byte) ); if( buf ) { if( erl_encode( frags, buf ) == nbyte ) { if( write_lpm( buf, nbyte ) != nbyte ) fail = 1; } else fail = 1; free( buf ); } else fail = 1; } else fail = 1; cleanup: erl_free_array( array, count ); free( array ); } } else break; } #ifdef _DEBUG closelog(); #endif return 0; }