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From: Christine C. <chr...@us...> - 2008-09-03 14:55:45
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Update of /cvsroot/linux-decnet/dnprogs/apps In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv12965 Modified Files: Makefile Added Files: mknodes.c Log Message: Add mknodes program to fetch a nodes list from another host. --- NEW FILE: mknodes.c --- /****************************************************************************** (c) 2008 Christine Caulfield chr...@gm... 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 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. ****************************************************************************** */ #define _FILE_OFFSET_BITS 64 #define FUSE_USE_VERSION 22 #include <stdio.h> #include <stdlib.h> #include <string.h> #include <unistd.h> #include <ctype.h> #include <sys/select.h> #include <sys/socket.h> #include <netdnet/dn.h> #include <netdnet/dnetdb.h> #define BUFLEN 4096 static void makelower(char *s) { int i; for (i=0; i<strlen(s); i++) s[i] = tolower(s[i]); } static int get_object_info(char *nodename) { struct accessdata_dn accessdata; char node[BUFLEN]; unsigned char reply[BUFLEN]; int sockfd; int status; struct nodeent *np; struct sockaddr_dn sockaddr; fd_set fds; struct timeval tv; char *exec_dev; struct dn_naddr *exec_addr; unsigned int exec_area; unsigned int nodeaddr; char *local_user; struct nodeent *exec_node; char command[] = {0x14, 0, 0xff}; // Get exec data as that's not in the remote node list! exec_addr = getnodeadd(); exec_area = exec_addr->a_addr[1]>>2; nodeaddr = exec_addr->a_addr[0] | exec_addr->a_addr[1]<<8; exec_dev = getexecdev(); exec_node = getnodebyaddr((char*)exec_addr->a_addr, 2, AF_DECnet); // Print header printf("\ #\n\ # DECnet hosts file\n\ #\n\ #Node Node Name Node Line Line\n\ #Type Address Tag Name Tag Device\n\ #----- ------- ----- ----- ----- ------\n"); // Print exec line printf("executor\t%d.%d\t\tname\t\t%s\tline\t%s\n", nodeaddr >> 10, nodeaddr & 0x1FF, exec_node->n_name, exec_dev); memset(&accessdata, 0, sizeof(accessdata)); memset(&sockaddr, 0, sizeof(sockaddr)); if (!local_user) local_user = getenv("USER"); if (local_user) { strcpy((char *)accessdata.acc_acc, local_user); accessdata.acc_accl = strlen((char *)accessdata.acc_acc); } else accessdata.acc_acc[0] = '\0'; np = getnodebyname(nodename); if ((sockfd=socket(AF_DECnet, SOCK_SEQPACKET, DNPROTO_NSP)) == -1) { return -1; } // Provide access control and proxy information if (setsockopt(sockfd, DNPROTO_NSP, SO_CONACCESS, &accessdata, sizeof(accessdata)) < 0) { return -1; } /* Open up object number 0 with the name of the task */ sockaddr.sdn_family = AF_DECnet; sockaddr.sdn_flags = 0x00; sockaddr.sdn_objnum = 0x13; // NML sockaddr.sdn_objnamel = 0; memcpy(sockaddr.sdn_add.a_addr, np->n_addr,2); sockaddr.sdn_add.a_len = 2; if (connect(sockfd, (struct sockaddr *)&sockaddr, sizeof(sockaddr)) < 0) { close(sockfd); return -1; } // Now run the command if (write(sockfd, command, sizeof(command)) < (int)sizeof(command)) { close(sockfd); return -1; } // Wait for completion (not for ever!!) FD_ZERO(&fds); FD_SET(sockfd, &fds); tv.tv_usec = 0; tv.tv_sec = 3; status = select(sockfd+1, &fds, NULL, NULL, &tv); if (status <= 0) { close(sockfd); return -1; } do { status = read(sockfd, reply, BUFLEN); if (reply[0] == 2) continue; // Success - data to come if (reply[0] == -1) { fprintf(stderr, "error %d: %s\n", reply[1] | reply[2]<<8, reply+3); break; } if (reply[0] == 1) { unsigned int namelen; // Data response switch (reply[3]) { case 0: // node nodeaddr = reply[4] | reply[5] << 8; if (nodeaddr >> 10 == 0) // In exec area nodeaddr |= exec_area << 10; namelen = reply[6] & 0x7f; // Top bit indicates EXEC ? memcpy(node, reply+7, namelen); node[namelen] = 0; makelower(node); printf("node\t\t%d.%d\t\tname\t\t%s\n", nodeaddr >> 10, nodeaddr & 0x1FF, node); // More info here but we don't need it for now. break; default: // more ? break; } if (reply[0] == 128) break; // end of data } } while (status > 0 && reply[0] != 128); close (sockfd); return status; } int main(int argc, char *argv[]) { if (argc < 2) { fprintf(stderr, "\nusage %s <node>\n\n", argv[0]); fprintf(stderr, " Generates a decnet.conf file from another node's\n"); fprintf(stderr, " known node list\n\n"); return 1; } return get_object_info(argv[1]); } Index: Makefile =================================================================== RCS file: /cvsroot/linux-decnet/dnprogs/apps/Makefile,v retrieving revision 1.11 retrieving revision 1.12 diff -C2 -r1.11 -r1.12 *** Makefile 11 Mar 2008 16:56:47 -0000 1.11 --- Makefile 3 Sep 2008 14:55:41 -0000 1.12 *************** *** 14,17 **** --- 14,18 ---- PROG5OBJS = ctermd.o PROG7OBJS = rmtermd.o + PROG8OBJS = mknodes.o PROG1 = startnet *************** *** 20,28 **** PROG5 = ctermd PROG7 = rmtermd MANPAGES1 = sethost.1 dnping.1 MANPAGES5 = decnet.conf.5 ! MANPAGES8 = ctermd.8 rmtermd.8 setether.8 ! ALLPROGS=$(PROG1) $(PROG2) $(PROG4) $(PROG5) $(PROG7) all: $(ALLPROGS) --- 21,30 ---- PROG5 = ctermd PROG7 = rmtermd + PROG8 = mknodes MANPAGES1 = sethost.1 dnping.1 MANPAGES5 = decnet.conf.5 ! MANPAGES8 = ctermd.8 rmtermd.8 setether.8 mknodes.i ! ALLPROGS=$(PROG1) $(PROG2) $(PROG4) $(PROG5) $(PROG7) $(PROG8) all: $(ALLPROGS) *************** *** 46,49 **** --- 48,55 ---- $(CC) -o $@ $(CFLAGS) $(PROG7OBJS) $(LIBDAEMON) $(LIBDNET) $(PTSLIBS) + $(PROG8): $(PROG8OBJS) $(DEPLIBDNET) + $(CC) -o $@ $(CFLAGS) $(PROG8OBJS) $(LIBDNET) + + dep: $(CC) $(CFLAGS) -MM *.c >.depend 2>/dev/null |
