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Reported-by: Barry Davis <barry_davis@stormagic.com>
Signed-off-by: Karel Zak <kzak@redhat.com>
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Signed-off-by: François Revol <revol@free.fr>
Signed-off-by: Karel Zak <kzak@redhat.com>
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If flock is executed from a process which has set SIGCHLD to SIG_IGN, then
flock will eat cpu and hang indefinitely if given a command to execute.
So before we fork(), make sure to set SIGCHLD handling back to the default
so that the later waitpid() doesn't freak out on us.
[kzak@redhat.com: - add a check for waitpid() return value]
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Karel Zak <kzak@redhat.com>
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Signed-off-by: Karel Zak <kzak@redhat.com>
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flock.c: In function ‘usage’:
flock.c:75: warning: too few arguments for format
Signed-off-by: Karel Zak <kzak@redhat.com>
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$ flock -s
Segmentation fault
ltrace:
__libc_start_main(0x8048870, 2, 0xbfe9f404, 0x8049070, 0x8049060 <unfinished ...>
getopt_long(2, 0xbfe9f404, "+sexnouw:hV?", 0x80494e0, 0xbfe9f354) = 115
getopt_long(2, 0xbfe9f404, "+sexnouw:hV?", 0x80494e0, 0xbfe9f354) = -1
strtol(0, 0xbfe9f34c, 10, 0x80494e0, 0xbfe9f354 <unfinished ...>
--- SIGSEGV (Segmentation fault) ---
+++ killed by SIGSEGV +++
Addresses-Red-Had-Bugzilla: #489672
Signed-off-by: Karel Zak <kzak@redhat.com>
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With this patch, you can lock directory. Additionally,
lockfile opens with O_NOCTTY.
Try to open file with O_CREAT flag first, and without it
if open fails with EISDIR. Suggested by H. Peter Anvin.
Signed-off-by: Alexey Gladkov <legion@altlinux.org>
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this patch removes old CVS keywords from comments.
mount(8) works for newer Linux then 0.99 ;)
Signed-off-by: maximilian attems <max@stro.at>
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