Dnia sobota, 4 grudnia 2004 23:22, Miro Ziemski napisał: [...]
Ekhem, to już zrobiłem... jakby mi działało nie zawracałbym głowy.
Sorry :-( Może strace coś pomoże? Kwestia, jak sprawdzane jest to prawo dostępu.
Nie całkiem od początku ale chyba wystarczy?
write(1, "GNU Public License v2.0 - http:/"..., 51GNU Public License v2.0 - http://www.brianlane.com
) = 51
access("/dev/ttyS0", R_OK|W_OK) = 0
umask(0) = 017
stat64("/dev/ttyS0", {st_mode=S_IFCHR|0664, st_rdev=makedev(4, 64), ...}) = 0
getpid() = 7277
open("/var/lock/LCK...7277", O_WRONLY|O_CREAT|O_TRUNC, 0666) = 3
fstat64(3, {st_mode=S_IFREG|0666, st_size=0, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40016000
write(3, " 7277\n", 11) = 11
close(3) = 0
munmap(0x40016000, 4096) = 0
creat("/var/lock/LOCKDEV", 0777) = 3
flock(3, LOCK_EX|LOCK_NB) = 0
open("/var/lock/LCK..ttyS0", O_RDONLY) = 4
fstat64(4, {st_mode=S_IFREG|0666, st_size=11, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40016000
read(4, " 7261\n", 4096) = 11
close(4) = 0
munmap(0x40016000, 4096) = 0
kill(7261, SIG_0) = -1 ESRCH (No such process)
getpid() = 7277
unlink("/var/lock/.7277") = -1 ENOENT (No such file or directory)
rename("/var/lock/LCK..ttyS0", "/var/lock/.7277") = -1 EPERM (Operation not permitted)
open("/var/lock/.7277", O_RDONLY) = -1 ENOENT (No such file or directory)
unlink("/var/lock/LCK...7277") = 0
unlink("/var/lock/LOCKDEV") = 0
close(3) = 0
umask(017) = 0
write(2, "Error locking ttyS0. Do you have"..., 67Error locking ttyS0. Do you have permission to write to /var/lock?
) = 67
munmap(0x40015000, 4096) = 0
exit_group(5) = ?
-- Pozdrawiam Miro Ziemski
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