bitrixbiz Сообщения

kurych


[[email protected] ~]# strace /usr/bin/in.tftpd -l -4 -s /srv/nfs/diskless/boot/
execve("/usr/bin/in.tftpd", ["/usr/bin/in.tftpd", "-l", "-4", "-s", "/srv/nfs/diskless/boot/"], [/* 17 vars */]) = 0
brk(NULL)                               = 0x20e4000
access("/etc/ld.so.preload", R_OK)      = -1 ENOENT (No such file or directory)
open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=30309, ...}) = 0
mmap(NULL, 30309, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f7f1fe28000
close(3)                                = 0
open("/usr/lib/libc.so.6", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0000\10\2\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=1960896, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f1fe27000
mmap(NULL, 3803536, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f7f1f86c000
mprotect(0x7f7f1fa04000, 2093056, PROT_NONE) = 0
mmap(0x7f7f1fc03000, 24576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x197000) = 0x7f7f1fc03000
mmap(0x7f7f1fc09000, 14736, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f7f1fc09000
close(3)                                = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f1fe26000
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f7f1fe25000
arch_prctl(ARCH_SET_FS, 0x7f7f1fe26700) = 0
mprotect(0x7f7f1fc03000, 16384, PROT_READ) = 0
mprotect(0x608000, 4096, PROT_READ)     = 0
mprotect(0x7f7f1fe30000, 4096, PROT_READ) = 0
munmap(0x7f7f1fe28000, 30309)           = 0
socket(PF_LOCAL, SOCK_DGRAM|SOCK_CLOEXEC, 0) = 3
connect(3, {sa_family=AF_LOCAL, sun_path="/dev/log"}, 110) = 0
getpid()                                = 596
brk(NULL)                               = 0x20e4000
brk(0x2105000)                          = 0x2105000
chdir("/srv/nfs/diskless/boot/")        = 0
socket(PF_LOCAL, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0) = 4
connect(4, {sa_family=AF_LOCAL, sun_path="/var/run/nscd/socket"}, 110) = -1 ENOENT (No such file or directory)
close(4)                                = 0
socket(PF_LOCAL, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0) = 4
connect(4, {sa_family=AF_LOCAL, sun_path="/var/run/nscd/socket"}, 110) = -1 ENOENT (No such file or directory)
close(4)                                = 0
open("/etc/nsswitch.conf", O_RDONLY|O_CLOEXEC) = 4
fstat(4, {st_mode=S_IFREG|0644, st_size=234, ...}) = 0
read(4, "# Begin /etc/nsswitch.conf\n\npass"..., 4096) = 234
read(4, "", 4096)                       = 0
close(4)                                = 0
open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 4
fstat(4, {st_mode=S_IFREG|0644, st_size=30309, ...}) = 0
mmap(NULL, 30309, PROT_READ, MAP_PRIVATE, 4, 0) = 0x7f7f1fe28000
close(4)                                = 0
open("/usr/lib/libnss_files.so.2", O_RDONLY|O_CLOEXEC) = 4
read(4, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\240!\0\0\0\0\0\0"..., 832) = 832
fstat(4, {st_mode=S_IFREG|0755, st_size=47584, ...}) = 0
mmap(NULL, 2168600, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 4, 0) = 0x7f7f1f65a000
mprotect(0x7f7f1f665000, 2093056, PROT_NONE) = 0
mmap(0x7f7f1f864000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 4, 0xa000) = 0x7f7f1f864000
mmap(0x7f7f1f866000, 22296, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f7f1f866000
close(4)                                = 0
mprotect(0x7f7f1f864000, 4096, PROT_READ) = 0
munmap(0x7f7f1fe28000, 30309)           = 0
open("/etc/passwd", O_RDONLY|O_CLOEXEC) = 4
fstat(4, {st_mode=S_IFREG|0644, st_size=1040, ...}) = 0
read(4, "root:x:0:0:root:/root:/bin/bash\n"..., 4096) = 1040
close(4)                                = 0
socket(PF_INET, SOCK_DGRAM, IPPROTO_IP) = 4
fcntl(4, F_GETFL)                       = 0x2 (flags O_RDWR)
fcntl(4, F_SETFL, O_RDWR|O_NONBLOCK)    = 0
bind(4, {sa_family=AF_INET, sin_port=htons(69), sin_addr=inet_addr("0.0.0.0")}, 16) = 0
clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x7f7f1fe269d0) = 597
exit_group(0)                           = ?
+++ exited with 0 +++

bitrixbiz	# 6 лет, 4 месяца назад
Темы: 26 Сообщения: 165 Участник с: 29 апреля 2016	Ок. Вроде теперь более-менее понятней стало. Спасибо всем.

bitrixbiz	# 6 лет, 4 месяца назад (отредактировано 6 лет, 4 месяца назад)
Темы: 26 Сообщения: 165 Участник с: 29 апреля 2016	Если посмотреть вызов setsockopt(0, SOL_IP, IP_MTU_DISCOVER, [0], 4) = -1 ENOTSOCK (Socket operation on non-socket) то видно что первым аргументом идёт 0. Разве дескриптор сокета может быть нулевым?