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1 | /* $Header$ | |
2 | * | |
3 | * This generates the hstath.txt hosttable. | |
4 | * | |
5 | * (c) Copyright 1993 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 | EXEC SQL INCLUDE sqlca; | |
17 | ||
18 | extern int errno; | |
19 | char *whoami = "hosts.gen"; | |
20 | ||
21 | ||
22 | main(argc, argv) | |
23 | int argc; | |
24 | char **argv; | |
25 | { | |
26 | FILE *out = stdout; | |
27 | char *outf = NULL, outft[64], *p, buf[256]; | |
28 | struct stat sb; | |
29 | struct timeval now; | |
30 | int flag1, flag2, i; | |
31 | struct hash *aliases; | |
32 | EXEC SQL BEGIN DECLARE SECTION; | |
33 | int id; | |
34 | char name[65], vendor[33], model[33], os[33], addr[17]; | |
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, "machine", sb.st_mtime) || | |
48 | ModDiff(&flag2, "subnet", sb.st_mtime)) | |
49 | exit(MR_DATE); | |
50 | if (flag1 < 0 && flag2 < 0) { | |
51 | fprintf(stderr, "File %s does not need to be rebuilt.\n", | |
52 | argv[1]); | |
53 | exit(MR_NO_CHANGE); | |
54 | } | |
55 | } | |
56 | outf = argv[1]; | |
57 | sprintf(outft, "%s~", outf); | |
58 | if ((out = fopen(outft, "w")) == NULL) { | |
59 | fprintf(stderr, "unable to open %s for output\n", outf); | |
60 | exit(MR_OCONFIG); | |
61 | } | |
62 | } else if (argc != 1) { | |
63 | fprintf(stderr, "usage: %s [outfile]\n", argv[0]); | |
64 | exit(MR_ARGS); | |
65 | } else { | |
66 | outf = NULL; | |
67 | } | |
68 | ||
69 | EXEC SQL WHENEVER SQLERROR GOTO sqlerr; | |
70 | ||
71 | gettimeofday(&now, NULL); | |
72 | ||
73 | fprintf(out, "; MIT Network Host Table\n;\n"); | |
74 | fprintf(out, "; \t%cAuthor: $\n", '$'); | |
75 | fprintf(out, "; \t%cDate: $\n", '$'); | |
76 | fprintf(out, "; \t%cRevision: $\n;\n", '$'); | |
77 | fprintf(out, "; Host table generated by Moira at %s;\n", | |
78 | ctime(&now.tv_sec)); | |
79 | ||
80 | EXEC SQL DECLARE y CURSOR FOR SELECT | |
81 | mach_id, name FROM hostalias; | |
82 | EXEC SQL OPEN y; | |
83 | aliases = create_hash(1001); | |
84 | while (1) { | |
85 | EXEC SQL FETCH y INTO :id, :name; | |
86 | if (sqlca.sqlcode != 0) break; | |
87 | if (id == 0) continue; | |
88 | if (*strtrim(name) == 0) continue; | |
89 | if ((i = strlen(name)) < 9 || strcmp(&name[i-8], ".MIT.EDU")) { | |
90 | fprintf(stderr, "Name %s not in MIT domain\n", name); | |
91 | continue; | |
92 | } else { | |
93 | name[i-8] = 0; | |
94 | } | |
95 | if (p = hash_lookup(aliases, id)) { | |
96 | sprintf(buf, "%s,%s", p, name); | |
97 | hash_update(aliases, id, strsave(buf)); | |
98 | free(p); | |
99 | } else | |
100 | hash_store(aliases, id, strsave(name)); | |
101 | } | |
102 | ||
103 | EXEC SQL DECLARE x CURSOR FOR SELECT | |
104 | name, mach_id, vendor, model, os, address | |
105 | FROM machine WHERE status=1 ORDER BY address; | |
106 | EXEC SQL OPEN x; | |
107 | while (1) { | |
108 | EXEC SQL FETCH x INTO :name, :id, :vendor, :model, :os, :addr; | |
109 | if (sqlca.sqlcode != 0) break; | |
110 | if (id == 0) continue; | |
111 | if (*strtrim(name) == 0) continue; | |
112 | if ((i = strlen(name)) < 9 || strcmp(&name[i-8], ".MIT.EDU")) { | |
113 | continue; | |
114 | } else { | |
115 | name[i-8] = 0; | |
116 | } | |
117 | strtrim(vendor); | |
118 | strtrim(model); | |
119 | strtrim(os); | |
120 | strtrim(addr); | |
121 | if (*addr == 0 || inet_addr(addr) == -1) | |
122 | continue; | |
123 | if (p = hash_lookup(aliases, id)) | |
124 | sprintf(buf, "%s,%s", name, p); | |
125 | else | |
126 | strcpy(buf, name); | |
127 | fprintf(out, "HOST : %s : %s : ", addr, buf); | |
128 | if ((*vendor || *model) && *os) { | |
129 | if (*vendor && *model) | |
130 | fprintf(out, "%s/%s : %s :\n", vendor, model, os); | |
131 | else | |
132 | fprintf(out, "%s%s : %s :\n", vendor, model, os); | |
133 | } else | |
134 | fputs("\n", out); | |
135 | } | |
136 | ||
137 | EXEC SQL CLOSE x; | |
138 | #ifsql INGRES | |
139 | EXEC SQL DISCONNECT; | |
140 | #endsql | |
141 | #ifsql INFORMIX | |
142 | EXEC SQL CLOSE DATABASE; | |
143 | #endsql | |
144 | ||
145 | fprintf(out, "; End of automatically generated host table\n"); | |
146 | if (fclose(out)) { | |
147 | perror("close failed"); | |
148 | exit(MR_CCONFIG); | |
149 | } | |
150 | if (outf) | |
151 | fix_file(outf); | |
152 | exit(MR_SUCCESS); | |
153 | ||
154 | sqlerr: | |
155 | com_err(whoami, MR_INGRES_ERR, " code %d\n", sqlca.sqlcode); | |
156 | #ifsql INGRES | |
157 | if (sqlca.sqlcode == 17700 || sqlca.sqlcode == -37000) | |
158 | exit(MR_DEADLOCK); | |
159 | #endsql | |
160 | critical_alert("DCM", "Hosts build encountered INGRES ERROR %d", | |
161 | sqlca.sqlcode); | |
162 | exit(MR_INGRES_ERR); | |
163 | } |