Ping strace

execve("/bin/ping", ["ping", "google.com"], [/* 20 vars */]) = 0
brk(0)                                  = 0x1728000
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6c170e2000
access("/etc/ld.so.preload", R_OK)      = -1 ENOENT (No such file or directory)
open("/etc/ld.so.cache", O_RDONLY)      = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=8842, ...}) = 0
mmap(NULL, 8842, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f6c170df000
close(3)                                = 0
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
open("/lib/libc.so.6", O_RDONLY)        = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0`\355\1\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=1432968, ...}) = 0
mmap(NULL, 3541032, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f6c16b66000
mprotect(0x7f6c16cbe000, 2093056, PROT_NONE) = 0
mmap(0x7f6c16ebd000, 20480, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x157000) = 0x7f6c16ebd000
mmap(0x7f6c16ec2000, 18472, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f6c16ec2000
close(3)                                = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6c170de000
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6c170dd000
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6c170dc000
arch_prctl(ARCH_SET_FS, 0x7f6c170dd700) = 0
mprotect(0x7f6c16ebd000, 16384, PROT_READ) = 0
mprotect(0x7f6c170e4000, 4096, PROT_READ) = 0
munmap(0x7f6c170df000, 8842)            = 0
socket(PF_INET, SOCK_RAW, IPPROTO_ICMP) = 3
getuid()                                = 0
setuid(0)                               = 0
brk(0)                                  = 0x1728000
brk(0x1749000)                          = 0x1749000
getpid()                                = 1502
open("/etc/resolv.conf", O_RDONLY)      = 4
fstat(4, {st_mode=S_IFREG|0644, st_size=57, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6c170e1000
read(4, "domain sit.iitkgp\nsearch sit.iit"..., 4096) = 57
read(4, "", 4096)                       = 0
close(4)                                = 0
munmap(0x7f6c170e1000, 4096)            = 0
stat("/etc/resolv.conf", {st_mode=S_IFREG|0644, st_size=57, ...}) = 0
open("/etc/resolv.conf", O_RDONLY)      = 4
fstat(4, {st_mode=S_IFREG|0644, st_size=57, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6c170e1000
read(4, "domain sit.iitkgp\nsearch sit.iit"..., 4096) = 57
read(4, "", 4096)                       = 0
close(4)                                = 0
munmap(0x7f6c170e1000, 4096)            = 0
socket(PF_FILE, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0) = 4
connect(4, {sa_family=AF_FILE, path="/var/run/nscd/socket"}, 110) = -1 ENOENT (No such file or directory)
close(4)                                = 0
socket(PF_FILE, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0) = 4
connect(4, {sa_family=AF_FILE, path="/var/run/nscd/socket"}, 110) = -1 ENOENT (No such file or directory)
close(4)                                = 0
open("/etc/nsswitch.conf", O_RDONLY)    = 4
fstat(4, {st_mode=S_IFREG|0644, st_size=475, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6c170e1000
read(4, "# /etc/nsswitch.conf\n#\n# Example"..., 4096) = 475
read(4, "", 4096)                       = 0
close(4)                                = 0
munmap(0x7f6c170e1000, 4096)            = 0
open("/etc/ld.so.cache", O_RDONLY)      = 4
fstat(4, {st_mode=S_IFREG|0644, st_size=8842, ...}) = 0
mmap(NULL, 8842, PROT_READ, MAP_PRIVATE, 4, 0) = 0x7f6c170df000
close(4)                                = 0
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
open("/lib/libnss_files.so.2", O_RDONLY) = 4
read(4, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0p!\0\0\0\0\0\0"..., 832) = 832
fstat(4, {st_mode=S_IFREG|0644, st_size=47616, ...}) = 0
mmap(NULL, 2143624, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 4, 0) = 0x7f6c1695a000
mprotect(0x7f6c16965000, 2093056, PROT_NONE) = 0
mmap(0x7f6c16b64000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 4, 0xa000) = 0x7f6c16b64000
close(4)                                = 0
mprotect(0x7f6c16b64000, 4096, PROT_READ) = 0
munmap(0x7f6c170df000, 8842)            = 0
open("/etc/host.conf", O_RDONLY)        = 4
fstat(4, {st_mode=S_IFREG|0644, st_size=9, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6c170e1000
read(4, "multi on\n", 4096)             = 9
read(4, "", 4096)                       = 0
close(4)                                = 0
munmap(0x7f6c170e1000, 4096)            = 0
open("/etc/hosts", O_RDONLY|O_CLOEXEC)  = 4
fcntl(4, F_GETFD)                       = 0x1 (flags FD_CLOEXEC)
fstat(4, {st_mode=S_IFREG|0644, st_size=239, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6c170e1000
read(4, "127.0.0.1\tlocalhost\n127.0.1.1\tvl"..., 4096) = 239
read(4, "", 4096)                       = 0
close(4)                                = 0
munmap(0x7f6c170e1000, 4096)            = 0
open("/etc/ld.so.cache", O_RDONLY)      = 4
fstat(4, {st_mode=S_IFREG|0644, st_size=8842, ...}) = 0
mmap(NULL, 8842, PROT_READ, MAP_PRIVATE, 4, 0) = 0x7f6c170df000
close(4)                                = 0
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
open("/lib/libnss_dns.so.2", O_RDONLY)  = 4
read(4, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\0\20\0\0\0\0\0\0"..., 832) = 832
fstat(4, {st_mode=S_IFREG|0644, st_size=22928, ...}) = 0
mmap(NULL, 2117888, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 4, 0) = 0x7f6c16754000
mprotect(0x7f6c16759000, 2093056, PROT_NONE) = 0
mmap(0x7f6c16958000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 4, 0x4000) = 0x7f6c16958000
close(4)                                = 0
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
open("/lib/libresolv.so.2", O_RDONLY)   = 4
read(4, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\3008\0\0\0\0\0\0"..., 832) = 832
fstat(4, {st_mode=S_IFREG|0644, st_size=80712, ...}) = 0
mmap(NULL, 2185864, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 4, 0) = 0x7f6c1653e000
mprotect(0x7f6c16551000, 2093056, PROT_NONE) = 0
mmap(0x7f6c16750000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 4, 0x12000) = 0x7f6c16750000
mmap(0x7f6c16752000, 6792, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f6c16752000
close(4)                                = 0
mprotect(0x7f6c16750000, 4096, PROT_READ) = 0
mprotect(0x7f6c16958000, 4096, PROT_READ) = 0
munmap(0x7f6c170df000, 8842)            = 0
stat("/etc/resolv.conf", {st_mode=S_IFREG|0644, st_size=57, ...}) = 0
socket(PF_INET, SOCK_DGRAM|SOCK_NONBLOCK, IPPROTO_IP) = 4
connect(4, {sa_family=AF_INET, sin_port=htons(53), sin_addr=inet_addr("10.14.0.2")}, 16) = 0
poll([{fd=4, events=POLLOUT}], 1, 0)    = 1 ([{fd=4, revents=POLLOUT}])
sendto(4, "\36\321\1\0\0\1\0\0\0\0\0\0\6google\3com\0\0\1\0\1", 28, MSG_NOSIGNAL, NULL, 0) = 28
poll([{fd=4, events=POLLIN}], 1, 5000)  = 1 ([{fd=4, revents=POLLIN}])
ioctl(4, FIONREAD, [244])               = 0
recvfrom(4, "\36\321\201\200\0\1\0\5\0\4\0\4\6google\3com\0\0\1\0\1\300\f\0\1"..., 1024, 0, {sa_family=AF_INET, sin_port=htons(53), sin_addr=inet_addr("10.14.0.2")}, [16]) = 244
close(4)                                = 0
socket(PF_INET, SOCK_DGRAM, IPPROTO_IP) = 4
connect(4, {sa_family=AF_INET, sin_port=htons(1025), sin_addr=inet_addr("74.125.236.80")}, 16) = 0
getsockname(4, {sa_family=AF_INET, sin_port=htons(59776), sin_addr=inet_addr("10.14.85.244")}, [16]) = 0
close(4)                                = 0
setsockopt(3, SOL_RAW, ICMP_FILTER, ~(ICMP_ECHOREPLY|ICMP_DEST_UNREACH|ICMP_SOURCE_QUENCH|ICMP_REDIRECT|ICMP_TIME_EXCEEDED|ICMP_PARAMETERPROB), 4) = 0
setsockopt(3, SOL_IP, IP_RECVERR, [1], 4) = 0
setsockopt(3, SOL_SOCKET, SO_SNDBUF, [324], 4) = 0
setsockopt(3, SOL_SOCKET, SO_RCVBUF, [65536], 4) = 0
getsockopt(3, SOL_SOCKET, SO_RCVBUF, [131072], [4]) = 0
fstat(1, {st_mode=S_IFCHR|0620, st_rdev=makedev(136, 0), ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f6c170e1000
write(1, "PING google.com (74.125.236.80) "..., 54) = 54
setsockopt(3, SOL_SOCKET, SO_TIMESTAMP, [1], 4) = 0
setsockopt(3, SOL_SOCKET, SO_SNDTIMEO, "\1\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", 16) = 0
setsockopt(3, SOL_SOCKET, SO_RCVTIMEO, "\1\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", 16) = 0
rt_sigaction(SIGINT, {0x403b40, [], SA_RESTORER|SA_INTERRUPT, 0x7f6c16b981e0}, NULL, 8) = 0
rt_sigaction(SIGALRM, {0x403b40, [], SA_RESTORER|SA_INTERRUPT, 0x7f6c16b981e0}, NULL, 8) = 0
rt_sigaction(SIGQUIT, {0x403b50, [], SA_RESTORER|SA_INTERRUPT, 0x7f6c16b981e0}, NULL, 8) = 0
ioctl(1, SNDCTL_TMR_TIMEBASE or TCGETS, {B38400 opost isig icanon echo ...}) = 0
ioctl(1, TIOCGWINSZ, {ws_row=36, ws_col=134, ws_xpixel=0, ws_ypixel=0}) = 0
sendmsg(3, {msg_name(16)={sa_family=AF_INET, sin_port=htons(0), sin_addr=inet_addr("74.125.236.80")}, msg_iov(1)=[{"\10\0\213\323\5\336\0\1\22\237\347N\0\0\0\0\247\214\6\0\0\0\0\0\20\21\22\23\24\25\26\27"..., 64}], msg_controllen=0, msg_flags=0}, 0) = 64
recvmsg(3, 0x7fffb45b6500, 0)           = -1 EAGAIN (Resource temporarily unavailable)
poll([{fd=3, events=POLLIN|POLLERR}], 1, 10) = 0 (Timeout)
sendmsg(3, {msg_name(16)={sa_family=AF_INET, sin_port=htons(0), sin_addr=inet_addr("74.125.236.80")}, msg_iov(1)=[{"\10\0r\256\5\336\0\2\23\237\347N\0\0\0\0\277\260\6\0\0\0\0\0\20\21\22\23\24\25\26\27"..., 64}], msg_controllen=0, msg_flags=0}, 0) = 64
recvmsg(3, 0x7fffb45b6500, 0)           = -1 EAGAIN (Resource temporarily unavailable)
poll([{fd=3, events=POLLIN|POLLERR}], 1, 10) = 0 (Timeout)
sendmsg(3, {msg_name(16)={sa_family=AF_INET, sin_port=htons(0), sin_addr=inet_addr("74.125.236.80")}, msg_iov(1)=[{"\10\0007\216\5\336\0\3\24\237\347N\0\0\0\0\371\317\6\0\0\0\0\0\20\21\22\23\24\25\26\27"..., 64}], msg_controllen=0, msg_flags=0}, 0) = 64
recvmsg(3, 0x7fffb45b6500, 0)           = -1 EAGAIN (Resource temporarily unavailable)
poll([{fd=3, events=POLLIN|POLLERR}], 1, 10) = 0 (Timeout)
sendmsg(3, {msg_name(16)={sa_family=AF_INET, sin_port=htons(0), sin_addr=inet_addr("74.125.236.80")}, msg_iov(1)=[{"\10\0\366m\5\336\0\4\25\237\347N\0\0\0\0009\357\6\0\0\0\0\0\20\21\22\23\24\25\26\27"..., 64}], msg_controllen=0, msg_flags=0}, 0) = 64
recvmsg(3, 0x7fffb45b6500, 0)           = -1 EAGAIN (Resource temporarily unavailable)
poll([{fd=3, events=POLLIN|POLLERR}], 1, 10) = 0 (Timeout)
sendmsg(3, {msg_name(16)={sa_family=AF_INET, sin_port=htons(0), sin_addr=inet_addr("74.125.236.80")}, msg_iov(1)=[{"\10\0\234M\5\336\0\5\26\237\347N\0\0\0\0\222\16\7\0\0\0\0\0\20\21\22\23\24\25\26\27"..., 64}], msg_controllen=0, msg_flags=0}, 0) = 64
recvmsg(3, 0x7fffb45b6500, 0)           = -1 EAGAIN (Resource temporarily unavailable)
poll([{fd=3, events=POLLIN|POLLERR}], 1, 10) = 0 (Timeout)
sendmsg(3, {msg_name(16)={sa_family=AF_INET, sin_port=htons(0), sin_addr=inet_addr("74.125.236.80")}, msg_iov(1)=[{"\10\0j-\5\336\0\6\27\237\347N\0\0\0\0\303-\7\0\0\0\0\0\20\21\22\23\24\25\26\27"..., 64}], msg_controllen=0, msg_flags=0}, 0) = 64
recvmsg(3, 0x7fffb45b6500, 0)           = -1 EAGAIN (Resource temporarily unavailable)
poll([{fd=3, events=POLLIN|POLLERR}], 1, 10) = 0 (Timeout)
sendmsg(3, {msg_name(16)={sa_family=AF_INET, sin_port=htons(0), sin_addr=inet_addr("74.125.236.80")}, msg_iov(1)=[{"\10\0)\r\5\336\0\7\30\237\347N\0\0\0\0\3M\7\0\0\0\0\0\20\21\22\23\24\25\26\27"..., 64}], msg_controllen=0, msg_flags=0}, 0) = 64
recvmsg(3, 0x7fffb45b6500, 0)           = -1 EAGAIN (Resource temporarily unavailable)
poll([{fd=3, events=POLLIN|POLLERR}], 1, 10) = 0 (Timeout)
sendmsg(3, {msg_name(16)={sa_family=AF_INET, sin_port=htons(0), sin_addr=inet_addr("74.125.236.80")}, msg_iov(1)=[{"\10\0\344\354\5\336\0\10\31\237\347N\0\0\0\0Fl\7\0\0\0\0\0\20\21\22\23\24\25\26\27"..., 64}], msg_controllen=0, msg_flags=0}, 0) = 64
recvmsg(3, 0x7fffb45b6500, 0)           = -1 EAGAIN (Resource temporarily unavailable)
poll([{fd=3, events=POLLIN|POLLERR}], 1, 10) = 0 (Timeout)
sendmsg(3, {msg_name(16)={sa_family=AF_INET, sin_port=htons(0), sin_addr=inet_addr("74.125.236.80")}, msg_iov(1)=[{"\10\0\217\314\5\336\0\t\32\237\347N\0\0\0\0\232\213\7\0\0\0\0\0\20\21\22\23\24\25\26\27"..., 64}], msg_controllen=0, msg_flags=0}, 0) = 64
recvmsg(3, 0x7fffb45b6500, 0)           = -1 EAGAIN (Resource temporarily unavailable)
poll([{fd=3, events=POLLIN|POLLERR}], 1, 10) = 0 (Timeout)
sendmsg(3, {msg_name(16)={sa_family=AF_INET, sin_port=htons(0), sin_addr=inet_addr("74.125.236.80")}, msg_iov(1)=[{"\10\0_\254\5\336\0\n\33\237\347N\0\0\0\0\311\252\7\0\0\0\0\0\20\21\22\23\24\25\26\27"..., 64}], msg_controllen=0, msg_flags=0}, 0) = 64
recvmsg(3, 0x7fffb45b6500, 0)           = -1 EINTR (Interrupted system call)
--- SIGINT (Interrupt) @ 0 (0) ---
rt_sigreturn(0x2)                       = -1 EINTR (Interrupted system call)
write(1, "\n", 1)                       = 1
write(1, "--- google.com ping statistics -"..., 35) = 35
write(1, "10 packets transmitted, 0 receiv"..., 66) = 66
write(1, "\n", 1)                       = 1
exit_group(1)                           = ?