+ return FALSE;
+}
+\f/*
+** CHECKFD012 -- check low numbered file descriptors
+**
+** File descriptors 0, 1, and 2 should be open at all times.
+** This routine verifies that, and fixes it if not true.
+**
+** Parameters:
+** where -- a tag printed if the assertion failed
+**
+** Returns:
+** none
+*/
+
+checkfd012(where)
+ char *where;
+{
+#ifdef XDEBUG
+ register int i;
+ struct stat stbuf;
+
+ for (i = 0; i < 3; i++)
+ {
+ if (fstat(i, &stbuf) < 0 && errno != EOPNOTSUPP)
+ {
+ /* oops.... */
+ int fd;
+
+ syserr("%s: fd %d not open", where, i);
+ fd = open("/dev/null", i == 0 ? O_RDONLY : O_WRONLY, 0666);
+ if (fd != i)
+ {
+ (void) dup2(fd, i);
+ (void) close(fd);
+ }
+ }
+ }
+#endif /* XDEBUG */
+}
+\f/*
+** PRINTOPENFDS -- print the open file descriptors (for debugging)
+**
+** Parameters:
+** logit -- if set, send output to syslog; otherwise
+** print for debugging.
+**
+** Returns:
+** none.
+*/
+
+#include <netdb.h>
+#include <arpa/inet.h>
+
+printopenfds(logit)
+ bool logit;
+{
+ register int fd;
+ extern int DtableSize;
+
+ for (fd = 0; fd < DtableSize; fd++)
+ dumpfd(fd, FALSE, logit);
+}
+\f/*
+** DUMPFD -- dump a file descriptor
+**
+** Parameters:
+** fd -- the file descriptor to dump.
+** printclosed -- if set, print a notification even if
+** it is closed; otherwise print nothing.
+** logit -- if set, send output to syslog instead of stdout.
+*/
+
+dumpfd(fd, printclosed, logit)
+ int fd;
+ bool printclosed;
+ bool logit;
+{
+ register struct hostent *hp;
+ register char *p;
+ struct sockaddr_in sin;
+ auto int slen;
+ struct stat st;
+ char buf[200];
+
+ p = buf;
+ sprintf(p, "%3d: ", fd);
+ p += strlen(p);
+
+ if (fstat(fd, &st) < 0)
+ {
+ if (printclosed || errno != EBADF)
+ {
+ sprintf(p, "CANNOT STAT (%s)", errstring(errno));
+ goto printit;
+ }
+ return;
+ }
+
+ slen = fcntl(fd, F_GETFL, NULL);
+ if (slen != -1)
+ {
+ sprintf(p, "fl=0x%x, ", slen);
+ p += strlen(p);
+ }
+
+ sprintf(p, "mode=%o: ", st.st_mode);
+ p += strlen(p);
+ switch (st.st_mode & S_IFMT)
+ {
+#ifdef S_IFSOCK
+ case S_IFSOCK:
+ sprintf(p, "SOCK ");
+ p += strlen(p);
+ slen = sizeof sin;
+ if (getsockname(fd, (struct sockaddr *) &sin, &slen) < 0)
+ sprintf(p, "(badsock)");
+ else
+ {
+ hp = gethostbyaddr((char *) &sin.sin_addr, slen, AF_INET);
+ sprintf(p, "%s/%d", hp == NULL ? inet_ntoa(sin.sin_addr)
+ : hp->h_name, ntohs(sin.sin_port));
+ }
+ p += strlen(p);
+ sprintf(p, "->");
+ p += strlen(p);
+ slen = sizeof sin;
+ if (getpeername(fd, (struct sockaddr *) &sin, &slen) < 0)
+ sprintf(p, "(badsock)");
+ else
+ {
+ hp = gethostbyaddr((char *) &sin.sin_addr, slen, AF_INET);
+ sprintf(p, "%s/%d", hp == NULL ? inet_ntoa(sin.sin_addr)
+ : hp->h_name, ntohs(sin.sin_port));
+ }
+ break;
+#endif
+
+ case S_IFCHR:
+ sprintf(p, "CHR: ");
+ p += strlen(p);
+ goto defprint;
+
+ case S_IFBLK:
+ sprintf(p, "BLK: ");
+ p += strlen(p);
+ goto defprint;
+
+ default:
+defprint:
+ sprintf(p, "dev=%d/%d, ino=%d, nlink=%d, u/gid=%d/%d, size=%ld",
+ major(st.st_dev), minor(st.st_dev), st.st_ino,
+ st.st_nlink, st.st_uid, st.st_gid, st.st_size);
+ break;
+ }
+
+printit:
+ if (logit)
+ syslog(LOG_DEBUG, "%s", buf);
+ else
+ printf("%s\n", buf);
+}
+\f/*
+** SHORTENSTRING -- return short version of a string
+**
+** If the string is already short, just return it. If it is too
+** long, return the head and tail of the string.
+**
+** Parameters:
+** s -- the string to shorten.
+** m -- the max length of the string.
+**
+** Returns:
+** Either s or a short version of s.
+*/
+
+#ifndef MAXSHORTSTR
+# define MAXSHORTSTR 83
+#endif
+
+char *
+shortenstring(s, m)
+ register char *s;
+ int m;
+{
+ int l;
+ static char buf[MAXSHORTSTR + 1];
+
+ l = strlen(s);
+ if (l < m)
+ return s;
+ if (m > MAXSHORTSTR)
+ m = MAXSHORTSTR;
+ else if (m < 10)
+ {
+ if (m < 5)
+ {
+ strncpy(buf, s, m);
+ buf[m] = '\0';
+ return buf;
+ }
+ strncpy(buf, s, m - 3);
+ strcpy(buf + m - 3, "...");
+ return buf;
+ }
+ m = (m - 3) / 2;
+ strncpy(buf, s, m);
+ strcpy(buf + m, "...");
+ strcpy(buf + m + 3, s + l - m);
+ return buf;
projects / unix-history / blobdiff