Commit | Line | Data |
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b09f1d89 BJ |
1 | /* Copyright (c) 1979 Regents of the University of California */ |
2 | /* #define CORY */ | |
3 | #include <stdio.h> | |
4 | #include <sys/types.h> | |
5 | #include <signal.h> | |
6 | #include <sys/dir.h> | |
7 | #include <sys/stat.h> | |
8 | #include <ctype.h> | |
9 | ||
10 | typedef char bool; | |
11 | ||
12 | FILE *f; | |
13 | bool hdrs; | |
14 | bool qopt; | |
15 | char *sep; | |
16 | bool ruptible; | |
17 | int onintr(); | |
18 | ||
19 | main(argc, argv) | |
20 | int argc; | |
21 | char *argv[]; | |
22 | { | |
23 | char obuf[BUFSIZ]; | |
24 | bool newrc, already, argfirst = 0; | |
25 | int rcfirst, lastmsg, firstmsg; | |
26 | FILE *bounds, *msgsrc; | |
27 | int i, nextty; | |
28 | bool hush = 0; | |
29 | bool send = 0; | |
30 | ||
31 | ruptible = signal(SIGINT, SIG_IGN) == SIG_DFL; | |
32 | if (ruptible) | |
33 | signal(SIGINT, SIG_DFL); | |
34 | setbuf(stdout, obuf); | |
35 | argc--, argv++; | |
36 | while (argc >= 1) { | |
37 | if (isdigit(argv[0][0])) { | |
38 | argfirst = 1; | |
39 | rcfirst = atoi(argv[0]); | |
40 | } else switch (argv[0][1]) { | |
41 | ||
42 | case 'f': | |
43 | hush++; | |
44 | break; | |
45 | ||
46 | case 'q': | |
47 | qopt++; | |
48 | break; | |
49 | ||
50 | case 'h': | |
51 | hdrs++; | |
52 | break; | |
53 | ||
54 | case 's': | |
55 | send++; | |
56 | break; | |
57 | ||
58 | default: | |
59 | fprintf(stderr, "usage: msgs [ -f ] [ number ]\n"); | |
60 | exit(1); | |
61 | } | |
62 | argc--, argv++; | |
63 | } | |
64 | if (!send) { | |
65 | setuid(getuid()); | |
66 | if (chdir(getenv("HOME")) < 0) | |
67 | perror(getenv("HOME")), exit(1); | |
68 | newrc = 0; | |
69 | msgsrc = fopen(".msgsrc", "r"); | |
70 | nextty = 1; | |
71 | if (msgsrc != NULL) { | |
72 | fscanf(msgsrc, "%d\n", &i); | |
73 | fclose(msgsrc); | |
74 | nextty = i; | |
75 | if (!argfirst) | |
76 | rcfirst = i; | |
77 | } else | |
78 | newrc = 1; | |
79 | msgsrc = fopen(".msgsrc", "w"); | |
80 | if (msgsrc == NULL) | |
81 | perror(".msgsrc"), exit(1); | |
82 | } | |
83 | if (chdir("/usr/msgs") < 0) | |
84 | perror("/usr/msgs"), exit(1); | |
85 | bounds = fopen("bounds", "r"); | |
86 | if (bounds == NULL) { | |
87 | FILE *d = fopen(".", "r"); | |
88 | struct direct dirent; | |
89 | ||
90 | if (d == NULL) | |
91 | perror("/usr/msgs"), exit(1); | |
92 | firstmsg = 25000; | |
93 | lastmsg = 0; | |
94 | while (fread(&dirent, sizeof dirent, 1, d) == 1) { | |
95 | register char *cp = dirent.d_name; | |
96 | register int i = 0; | |
97 | ||
98 | if (dirent.d_ino == 0) | |
99 | continue; | |
100 | while (isdigit(*cp)) | |
101 | i = i * 10 + *cp++ - '0'; | |
102 | if (*cp) | |
103 | continue; | |
104 | if (i > lastmsg) | |
105 | lastmsg = i; | |
106 | if (i < firstmsg) | |
107 | firstmsg = i; | |
108 | } | |
109 | if (firstmsg == 25000) { | |
110 | firstmsg = 1; | |
111 | lastmsg = 0; | |
112 | } | |
113 | fclose(d); | |
114 | if (send) { | |
115 | unlink("bounds"); | |
116 | bounds = fopen("bounds", "w"); | |
117 | #ifdef CORY | |
118 | chmod("bounds", 0644); | |
119 | #else | |
120 | chmod("bounds", 0666); | |
121 | #endif | |
122 | if (bounds == NULL) | |
123 | perror("bounds"), exit(1); | |
124 | fprintf(bounds, "%d %d\n", firstmsg, lastmsg); | |
125 | fclose(bounds); | |
126 | } | |
127 | } else { | |
128 | fscanf(bounds, "%d %d\n", &firstmsg, &lastmsg); | |
129 | fclose(bounds); | |
130 | } | |
131 | if (send) { | |
132 | char newname[16]; | |
133 | FILE *newm; | |
134 | ||
135 | sprintf(newname, "%d", lastmsg+1); | |
136 | bounds = fopen("bounds", "w"); | |
137 | if (bounds == NULL) | |
138 | perror("bounds"), exit(1); | |
139 | fprintf(bounds, "%d %d\n", firstmsg, lastmsg+1); | |
140 | fclose(bounds); | |
141 | newm = fopen(newname, "w"); | |
142 | if (newm == NULL) | |
143 | fprintf(stderr, "/usr/msgs/"), perror(newname), exit(1); | |
144 | chmod(newname, 0644); | |
145 | for (;;) { | |
146 | register c; | |
147 | c = getchar(); | |
148 | if (feof(stdin)) | |
149 | exit(0); | |
150 | if (ferror(stdin)) | |
151 | exit(1); | |
152 | putc(c, newm); | |
153 | } | |
154 | } | |
155 | if (!newrc) | |
156 | firstmsg = rcfirst; | |
157 | already = 0; | |
158 | for (i = firstmsg; i <= lastmsg; i++) { | |
159 | register int c; | |
160 | char inline[BUFSIZ]; | |
161 | struct stat stbuf; | |
162 | char fname[16]; | |
163 | ||
164 | sprintf(fname, "%d", i); | |
165 | f = fopen(fname, "r"); | |
166 | if (f == NULL) | |
167 | continue; | |
168 | if (qopt) { | |
169 | fseek(msgsrc, (long) 0, 0); | |
170 | fprintf(msgsrc, "%d\n", nextty); | |
171 | fflush(msgsrc); | |
172 | printf("There are new messages.\n"); | |
173 | exit(0); | |
174 | } | |
175 | if (already) | |
176 | printf("\n"); | |
177 | already = 1; | |
178 | fseek(msgsrc, (long) 0, 0); | |
179 | fprintf(msgsrc, "%d\n", nextty); | |
180 | fflush(msgsrc); | |
181 | printf("Message %d:\n", i); | |
182 | fgets(inline, sizeof inline, f); | |
183 | printf("%s", inline); | |
184 | if (fgets(inline, sizeof inline, f)) { | |
185 | if (strcmp(inline, "To: msgs\n") != 0 && inline[0] != '\n') | |
186 | printf("%s", inline); | |
187 | if (fgets(inline, sizeof inline, f) && inline[0] != '\n') | |
188 | printf("%s", inline); | |
189 | } | |
190 | c = getc(f); | |
191 | sep = "-"; | |
192 | if (c == '\n') | |
193 | c = getc(f); | |
194 | if (!feof(f)) | |
195 | printf("(%d more lines)", linecnt(f)); | |
196 | if (hdrs) { | |
197 | printf("\n-----\n"); | |
198 | fclose(f); | |
199 | continue; | |
200 | } | |
201 | if (feof(f)) | |
202 | printf("(continue) [yq] "); | |
203 | else | |
204 | printf(" type [ynq] ? "); | |
205 | fflush(stdout); | |
206 | inline[0] = 0; | |
207 | fgets(inline, sizeof inline, stdin); | |
208 | if (inline[0] == 0) | |
209 | printf("\n"); | |
210 | if (inline[0] == 'q') | |
211 | exit(1); | |
212 | if (isdigit(inline[0])) { | |
213 | sscanf(inline, "%d", &i); | |
214 | printf("--Goto %d--\n", i); | |
215 | i--; | |
216 | fflush(stdout); | |
217 | fclose(f); | |
218 | continue; | |
219 | } | |
220 | if (inline[0] == 'n' || inline[0] == 'N') { | |
221 | printf("--Flushed--\n"); | |
222 | fflush(stdout); | |
223 | fclose(f); | |
224 | if (i >= nextty) | |
225 | nextty = i + 1; | |
226 | continue; | |
227 | } | |
228 | if (ruptible) | |
229 | signal(SIGINT, onintr); | |
230 | if (!feof(f)) | |
231 | for (;;) { | |
232 | putchar(c); | |
233 | c = getc(f); | |
234 | if (feof(f)) | |
235 | break; | |
236 | } | |
237 | printf("--%s--\n", sep); | |
238 | if (i >= nextty) | |
239 | nextty = i + 1; | |
240 | fflush(stdout); | |
241 | if (ruptible) | |
242 | signal(SIGINT, SIG_DFL); | |
243 | fclose(f); | |
244 | } | |
245 | fseek(msgsrc, (long) 0, 0); | |
246 | fprintf(msgsrc, "%d\n", nextty); | |
247 | fclose(msgsrc); | |
248 | if (qopt) | |
249 | exit(0); | |
250 | if (!already && !hush) | |
251 | printf("No messages.\n"); | |
252 | exit(0); | |
253 | } | |
254 | ||
255 | onintr() | |
256 | { | |
257 | ||
258 | sep = "Skip"; | |
259 | printf("\n"); | |
260 | fseek(f, (long) 0, 2); | |
261 | } | |
262 | ||
263 | linecnt(f) | |
264 | FILE *f; | |
265 | { | |
266 | off_t ftell(); | |
267 | off_t oldpos = ftell(f); | |
268 | int l = 0; | |
269 | char lbuf[BUFSIZ]; | |
270 | ||
271 | while (fgets(lbuf, sizeof lbuf, f)) | |
272 | l++; | |
273 | clearerr(f); | |
274 | fseek(f, oldpos, 0); | |
275 | return (l); | |
276 | } |