]> andersk Git - moira.git/blame - gen/networks.dc
Diane Delgado's changes for a fixed table-locking order
[moira.git] / gen / networks.dc
CommitLineData
ff4ac895 1/* $Header$
2 *
3 * This generates the network table.
4 *
5 * (c) Copyright 1994 by the Massachusetts Institute of Technology.
6 * For copying and distribution information, please see the file
7 * <mit-copyright.h>.
8 */
9
10#include <mit-copyright.h>
11#include <stdio.h>
12#include <moira.h>
13#include <sys/types.h>
14#include <sys/stat.h>
15#include <sys/time.h>
16
17EXEC SQL INCLUDE sqlca;
18
19extern int errno;
20char *whoami = "network.gen";
21
22
23main(argc, argv)
24int argc;
25char **argv;
26{
27 FILE *out = stdout;
28 char *outf = NULL, outft[64], *p, buf[256];
29 struct stat sb;
30 struct timeval now;
31 int flag1, i;
32 EXEC SQL BEGIN DECLARE SECTION;
33 int id, addr;
34 char name[65], description[65];
35 EXEC SQL END DECLARE SECTION;
36
37#ifsql INGRES
38 EXEC SQL CONNECT moira;
39 EXEC SQL SET LOCKMODE SESSION WHERE LEVEL=TABLE, READLOCK=SHARED;
40#endsql
41#ifsql INFORMIX
42 EXEC SQL DATABASE moira;
43#endsql
44
45 if (argc == 2) {
46 if (stat(argv[1], &sb) == 0) {
47 if (ModDiff(&flag1, "subnet", sb.st_mtime))
48 exit(MR_DATE);
49 if (flag1 < 0) {
50 fprintf(stderr, "File %s does not need to be rebuilt.\n",
51 argv[1]);
52 exit(MR_NO_CHANGE);
53 }
54 }
55 outf = argv[1];
56 sprintf(outft, "%s~", outf);
57 if ((out = fopen(outft, "w")) == NULL) {
58 fprintf(stderr, "unable to open %s for output\n", outf);
59 exit(MR_OCONFIG);
60 }
61 } else if (argc != 1) {
62 fprintf(stderr, "usage: %s [outfile]\n", argv[0]);
63 exit(MR_ARGS);
64 } else {
65 outf = NULL;
66 }
67
68 EXEC SQL WHENEVER SQLERROR GOTO sqlerr;
69
70 gettimeofday(&now, NULL);
71
72 fprintf(out, "; MIT Network Table\n;\n");
73 fprintf(out, "; \t%cAuthor: $\n", '$');
74 fprintf(out, "; \t%cDate: $\n", '$');
75 fprintf(out, "; \t%cRevision: $\n;\n", '$');
76 fprintf(out, "; Network table generated by Moira at %s;\n",
77 ctime(&now.tv_sec));
78
79 EXEC SQL DECLARE x CURSOR FOR SELECT
80 name, snet_id, saddr, description
81 FROM subnet ORDER BY saddr;
82 EXEC SQL OPEN x;
83 while (1) {
84 EXEC SQL FETCH x INTO :name, :id, :addr, :description;
85 if (sqlca.sqlcode != 0) break;
86 if (id == 0) continue;
87 if (*strtrim(name) == 0) continue;
dc1d1c52 88 fprintf(out, "NETWORK : %-16.16s : %-12.12s : %s\n", name, inet_ntoa(htonl(addr)),
ff4ac895 89 description);
90 }
91
92 EXEC SQL CLOSE x;
93#ifsql INGRES
94 EXEC SQL DISCONNECT;
95#endsql
96#ifsql INFORMIX
97 EXEC SQL CLOSE DATABASE;
98#endsql
99
100 fprintf(out, "; End of automatically generated network table\n");
101 if (fclose(out)) {
102 perror("close failed");
103 exit(MR_CCONFIG);
104 }
105 if (outf)
106 fix_file(outf);
107 exit(MR_SUCCESS);
108
109 sqlerr:
110 com_err(whoami, MR_INGRES_ERR, " code %d\n", sqlca.sqlcode);
111#ifsql INGRES
112 if (sqlca.sqlcode == 17700 || sqlca.sqlcode == -37000)
113 exit(MR_DEADLOCK);
114#endsql
115 critical_alert("DCM", "Networks build encountered INGRES ERROR %d",
116 sqlca.sqlcode);
117 exit(MR_INGRES_ERR);
118}
This page took 0.061946 seconds and 5 git commands to generate.