3 * vmhsbr.c -- routines to help vmh along
10 * INI: include width of windows
16 static char *types[] = {
18 "INI", "ACK", "ERR", "CMD", "QRY", "TTY", "WIN", "DATA", "EOF", "FIN",
22 static FILE *fp = NULL;
24 static int PEERrfd = NOTOK;
25 static int PEERwfd = NOTOK;
32 static int rclose (struct record *, char *, ...);
36 rcinit (int rfd, int wfd)
38 char *cp, buffer[BUFSIZ];
43 if ((cp = getenv ("MHVDEBUG")) && *cp) {
44 snprintf (buffer, sizeof(buffer), "%s.out", invo_name);
45 if ((fp = fopen (buffer, "w"))) {
46 fseek (fp, 0L, SEEK_END);
47 fprintf (fp, "%d: rcinit (%d, %d)\n", (int) getpid(), rfd, wfd);
73 rc2rc (char code, int len, char *data, struct record *rc)
75 if (rc2peer (code, len, data) == NOTOK)
83 str2rc (char code, char *str, struct record *rc)
85 return rc2rc (code, str ? strlen (str) : 0, str, rc);
90 peer2rc (struct record *rc)
95 if (read (PEERrfd, (char *) rc_head (rc), RHSIZE (rc)) != RHSIZE (rc))
96 return rclose (rc, "read from peer lost(1)");
98 if ((rc->rc_data = malloc ((unsigned) rc->rc_len + 1)) == NULL)
99 return rclose (rc, "malloc of %d lost", rc->rc_len + 1);
100 if (read (PEERrfd, rc->rc_data, rc->rc_len) != rc->rc_len)
101 return rclose (rc, "read from peer lost(2)");
102 rc->rc_data[rc->rc_len] = 0;
108 fseek (fp, 0L, SEEK_END);
109 fprintf (fp, "%d: <--- %s %d: \"%*.*s\"\n", (int) getpid(),
110 types[rc->rc_type], rc->rc_len,
111 rc->rc_len, rc->rc_len, rc->rc_data);
120 rc2peer (char code, int len, char *data)
123 register struct record *rc = &rcs;
129 fseek (fp, 0L, SEEK_END);
130 fprintf (fp, "%d: ---> %s %d: \"%*.*s\"\n", (int) getpid(),
131 types[rc->rc_type], rc->rc_len,
132 rc->rc_len, rc->rc_len, data);
136 if (write (PEERwfd, (char *) rc_head (rc), RHSIZE (rc)) != RHSIZE (rc))
137 return rclose (rc, "write to peer lost(1)");
140 if (write (PEERwfd, data, rc->rc_len) != rc->rc_len)
141 return rclose (rc, "write to peer lost(2)");
148 str2peer (char code, char *str)
150 return rc2peer (code, str ? strlen (str) : 0, str);
155 fmt2peer (char code, char *fmt, ...)
160 return verr2peer (code, NULL, fmt, ap);
166 err2peer (char code, char *what, char *fmt, ...)
171 verr2peer(code, what, fmt, ap);
177 verr2peer (char code, char *what, char *fmt, va_list ap)
181 char *bp, *s, buffer[BUFSIZ * 2];
183 /* Get buffer ready to go */
185 buflen = sizeof(buffer);
187 vsnprintf (bp, buflen, fmt, ap);
194 snprintf (bp, buflen, " %s: ", what);
199 if ((s = strerror (eindex)))
200 strncpy (bp, s, buflen);
202 snprintf (bp, buflen, "unknown error %d", eindex);
208 return rc2peer (code, bp - buffer, buffer);
213 rclose (struct record *rc, char *fmt, ...)
216 static char buffer[BUFSIZ * 2];
219 vsnprintf (buffer, sizeof(buffer), fmt, ap);
222 rc->rc_len = strlen (rc->rc_data = getcpy (buffer));
223 return (rc->rc_type = RC_XXX);