472bcd2198
PR/50322: Timo Buhrmester: tail -F <file> misbehaves with stdin closed
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Compare fp with stdin not fileno(fp) with STDIN_FILENO, because if tail
is called with 0 closed, then we are not going to be setting event filters
for the file because we'll erroneously think it is stdin.
2015-10-09 17:51:26 +00:00
6e28978d84
fix unused variable warnings
2013-10-18 20:47:06 +00:00
d44b4781e6
minor knf, no functional change.
2011-09-03 10:59:10 +00:00
56b933f4a2
Instead of declaring our own err() which is different than the standard one,
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and using it incorrectly in a few places because of confusion (does it print
errno or not?), declare two versions following the standard ones xerrx and,
xerr, and use those as appropriate, implementing them using them vwarn and
vwarnx.
2011-09-03 09:02:20 +00:00
0980aab530
Fix WARNS=4 issues (-Wcast-qual -Wshadow -Wsign-compare)
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XXX: need a "cleaner" way to do the check in reverse.c, as a general rule
2009-04-13 23:33:25 +00:00
a740c3d0aa
Coverity CID 3204: The USE_SLEEP case can close the fp, and break does
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not break from the loop, only from the switch. Make it break from the
loop to avoid a NULL pointer dereference.
2006-05-24 16:34:25 +00:00
ef45472693
appease gcc -Wuninitialized
2005-06-02 03:00:19 +00:00
7551fb024f
do not use long for file offset, use off_t. otto@openbsd
2004-02-16 21:57:04 +00:00
89aaa1bb64
Move UCB-licensed code from 4-clause to 3-clause licence.
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Patches provided by Joel Baker in PR 22365, verified by myself.
2003-08-07 11:13:06 +00:00
8bfad4ad7a
Use sleep(1) instead of usleep(1000000) to sleep for a second, since
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usleep() doesn't support an argument >= 1000000.
Problem noted & fix provided in [bin/20644] from Dave Huang.
2003-03-10 08:04:15 +00:00
64275c4aaf
use kqueue to watch the file if possible
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from FreeBSD via Luke Mewburn
this specifically does NOT include FreeBSD rev. 1.28 change; it's
my understanding -F is specifically meant to only detect removal
of the tailed file, not to watch for intermediate path changes
2002-10-30 21:48:50 +00:00
5152db4b16
Update error message after recent changes.
2002-09-18 19:29:12 +00:00
855996c546
Remove an old comment.
2002-09-18 19:21:41 +00:00
1bf9916dae
select() -> nanosleep()
2002-09-18 19:14:58 +00:00
3c4c9d2b57
Remove #if __STDC__. De-__P() and ANSIfy.
2002-06-14 00:41:42 +00:00
78762d72a5
fix tail; don't try to map more of the file than really exists
2001-11-24 02:30:17 +00:00
a3c923dc72
make tail -f and tail -10000 work on files > those which can be mmap()ed whole. tail -r will still not function on large files.
2001-11-21 06:47:07 +00:00
b02d81404c
avoid repeated error messages by making bytes(), lines() and rlines() return
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meaningful values, which can then be checked to avoid another error message.
1999-07-21 06:38:49 +00:00
eb4463abfe
KNF
1998-12-19 22:27:54 +00:00
8d721633cd
Pacify gcc-2.8.1 (extra braces).
1998-11-03 14:26:45 +00:00
59a47ce7be
Remove tracking of file size by how many characters were output.
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This succumbs to a race condition where data are written to the
file while the sleep is occurring. If a stat is done immediately
after, lastsize is updated but the file pointer wasn't pointing at
the end of the file, so the number of bytes between the current
pointer and the end of the file is added to the lastsize when
lastsize already points to the end of the file.
1998-09-18 01:42:54 +00:00
8f2250049f
Use MAP_SHARED, not MAP_PRIVATE.
1998-02-20 07:34:59 +00:00
170f7ea829
Add MAP_FILE as well.
1998-02-17 17:44:55 +00:00
f9cd93c874
Make sure mmap() uses MAP_PRIVATE instead of 0.
1998-02-17 17:40:59 +00:00
4d03919ab5
Add -F option to follow files though rotations and truncations.
1998-02-09 22:39:41 +00:00
079884da30
WARNSify, fix .Nm usage, deprecate register, getopt returns -1 not EOF
1997-10-19 23:45:08 +00:00
bd8bd7340f
Don't rely on select() not to modify the timeval argument. Also,
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simplify the code by passing in NULL rather than an empty fd_set to
indicate no file descriptors.
1996-02-13 16:49:10 +00:00
ae646d0e62
Merged with 4.4lite.
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Changed to conform to NetBSD's new RCS Id convention.
1994-11-23 07:41:55 +00:00
48851c7a0b
munmap() mmap()ed regions.
1994-11-23 07:11:00 +00:00
907eea9f85
various off_t fixes
1994-04-24 20:19:17 +00:00
ceacf6a332
off_t foo, and MAP_FILE
1994-03-28 02:22:29 +00:00
e9d867ef50
Add RCS identifiers.
1993-08-01 17:54:45 +00:00
aa97860f48
tail from ftp.uu.net:bsd-sources integrated
1993-04-30 08:04:52 +00:00
christos