Initial revision

diff --git a/gen/hosts.dc b/gen/hosts.dc
new file mode 100644 (file)
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+++ b/gen/hosts.dc
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+/* $Header$
+ *
+ * This generates the hstath.txt hosttable.
+ *
+ *  (c) Copyright 1993 by the Massachusetts Institute of Technology.
+ *  For copying and distribution information, please see the file
+ *  <mit-copyright.h>.
+ */
+
+#include <mit-copyright.h>
+#include <stdio.h>
+#include <moira.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+EXEC SQL INCLUDE sqlca;
+
+extern int errno;
+char *whoami = "hosts.gen";
+
+
+main(argc, argv)
+int argc;
+char **argv;
+{
+    FILE *out = stdout;
+    char *outf = NULL, outft[64], *p, buf[256];
+    struct stat sb;
+    struct timeval now;
+    int flag1, flag2, i;
+    struct hash *aliases;
+    EXEC SQL BEGIN DECLARE SECTION;
+    int id;
+    char name[65], vendor[33], model[33], os[33], addr[17];
+    EXEC SQL END DECLARE SECTION;
+
+#ifsql INGRES
+    EXEC SQL CONNECT moira;
+    EXEC SQL SET LOCKMODE SESSION WHERE LEVEL=TABLE, READLOCK=SHARED;
+#endsql
+#ifsql INFORMIX
+    EXEC SQL DATABASE moira;
+#endsql
+
+    if (argc == 2) {
+       if (stat(argv[1], &sb) == 0) {
+           if (ModDiff(&flag1, "machine", sb.st_mtime) ||
+               ModDiff(&flag2, "subnet", sb.st_mtime))
+             exit(MR_DATE);
+           if (flag1 < 0 && flag2 < 0) {
+               fprintf(stderr, "File %s does not need to be rebuilt.\n",
+                       argv[1]);
+               exit(MR_NO_CHANGE);
+           }
+       }
+       outf = argv[1];
+       sprintf(outft, "%s~", outf);
+       if ((out = fopen(outft, "w")) == NULL) {
+           fprintf(stderr, "unable to open %s for output\n", outf);
+           exit(MR_OCONFIG);
+       }
+    } else if (argc != 1) {
+       fprintf(stderr, "usage: %s [outfile]\n", argv[0]);
+       exit(MR_ARGS);
+    } else {
+       outf = NULL;
+    }
+
+    EXEC SQL WHENEVER SQLERROR GOTO sqlerr;
+
+    gettimeofday(&now, NULL);
+    fprintf(out, "; Host table generated %s;\n", ctime(&now.tv_sec));
+
+    EXEC SQL DECLARE y CURSOR FOR SELECT
+      mach_id, name FROM hostalias;
+    EXEC SQL OPEN y;
+    aliases = create_hash(1001);
+    while (1) {
+       EXEC SQL FETCH y INTO :id, :name;
+       if (sqlca.sqlcode != 0) break;
+       if (*strtrim(name) == 0) continue;
+       if ((i = strlen(name)) < 9 || strcmp(&name[i-8], ".MIT.EDU")) {
+           fprintf(stderr, "Name %s not in MIT domain\n", name);
+           continue;
+       } else {
+           name[i-8] = 0;
+       }
+       if (p = hash_lookup(aliases, id)) {
+           sprintf(buf, "%s,%s", p, name);
+           free(p);
+           hash_update(aliases, id, strsave(buf));
+       } else
+         hash_store(aliases, id, strsave(name));
+    }
+
+    EXEC SQL DECLARE x CURSOR FOR SELECT 
+      name, mach_id, vendor, model, os, address
+      FROM machine WHERE status=1 ORDER BY address;
+    EXEC SQL OPEN x;
+    while (1) {
+       EXEC SQL FETCH x INTO :name, :id, :vendor, :model, :os, :addr;
+       if (sqlca.sqlcode != 0) break;
+       if (*strtrim(name) == 0) continue;
+       if ((i = strlen(name)) < 9 || strcmp(&name[i-8], ".MIT.EDU")) {
+           fprintf(stderr, "Name %s not in MIT domain\n", name);
+           continue;
+       } else {
+           name[i-8] = 0;
+       }
+       strtrim(vendor);
+       strtrim(model);
+       strtrim(os);
+       strtrim(addr);
+       if (*addr == 0)
+         continue;
+       if (p = hash_lookup(aliases, id))
+         sprintf(buf, "%s,%s", name, p);
+       else
+         strcpy(buf, name);
+       fprintf(out, "HOST : %s : %s : ", addr, buf);
+       if (*vendor && *model)
+         fprintf(out, "%s/%s : %s :\n", vendor, model, os);
+       else
+         fprintf(out, "%s%s : %s :\n", vendor, model, os);
+    }
+
+    EXEC SQL CLOSE x;
+#ifsql INGRES
+    EXEC SQL DISCONNECT;
+#endsql
+#ifsql INFORMIX
+    EXEC SQL CLOSE DATABASE;
+#endsql
+
+    fprintf(out, "; End of automatically generated host table\n");
+    if (fclose(out)) {
+       perror("close failed");
+       exit(MR_CCONFIG);
+    }
+    if (outf)
+      fix_file(outf);
+    exit(MR_SUCCESS);
+
+ sqlerr:
+    com_err(whoami, MR_INGRES_ERR, " code %d\n", sqlca.sqlcode);
+    critical_alert("DCM", "Hosts build encountered INGRES ERROR %d",
+                  sqlca.sqlcode);
+    exit(MR_INGRES_ERR);
+}