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  1. root@ubuntuZen:/home/mihai/xen/extras/mini-os# ltrace nc 10.0.2.10 25
  2. __libc_start_main(0x401730, 3, 0x7fff7493f738, 0x4047d0 <unfinished ...>
  3. getopt(3, 0x7fff7493f738, "46bCDdhI:i:jklnO:P:p:q:rSs:tT:Uu"...) = -1
  4. getservbyname("25", "tcp") = 0
  5. strchr("25", '-') = nil
  6. strtonum(0x7fff749418fb, 1, 0xffff, 0x7fff7493b448) = 25
  7. __strdup(0x7fff749418fb, 0, 0, 0) = 0x9306c0
  8. getaddrinfo("10.0.2.10", "25", 0x7fff7493b480, 0x7fff7493b370) = 0
  9. socket(2, 1, 6) = 3
  10. fcntl(3, 3, 0, -1) = 2
  11. fcntl(3, 4, 2050, -1) = 0
  12. connect(3, 0x931270, 16, -1) = -1
  13. __errno_location() = 0x7f43309f66a0
  14. __fdelt_chk(3, 0x931270, 16, 0) = 0
  15. select(4, 0, 0x7fff7493b3c0, 03
  16. ^C <no return ...>
  17. --- SIGINT (Interrupt) ---
  18. +++ killed by SIGINT +++
  19.  
  20.  
  21.  
  22.  
  23.  
  24.  
  25. root@ubuntuZen:/home/mihai/xen/extras/mini-os# strace nc 10.0.2.10 25
  26. execve("/bin/nc", ["nc", "10.0.2.10", "25"], [/* 22 vars */]) = 0
  27. brk(0) = 0x239e000
  28. access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
  29. mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4ab8eeb000
  30. access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory)
  31. open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3
  32. fstat(3, {st_mode=S_IFREG|0644, st_size=53028, ...}) = 0
  33. mmap(NULL, 53028, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f4ab8ede000
  34. close(3) = 0
  35. access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
  36. open("/lib/x86_64-linux-gnu/libbsd.so.0", O_RDONLY|O_CLOEXEC) = 3
  37. read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0 )\0\0\0\0\0\0"..., 832) = 832
  38. fstat(3, {st_mode=S_IFREG|0644, st_size=56016, ...}) = 0
  39. mmap(NULL, 2155304, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f4ab8abc000
  40. mprotect(0x7f4ab8ac9000, 2093056, PROT_NONE) = 0
  41. mmap(0x7f4ab8cc8000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0xc000) = 0x7f4ab8cc8000
  42. mmap(0x7f4ab8cca000, 808, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f4ab8cca000
  43. close(3) = 0
  44. access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
  45. open("/lib/x86_64-linux-gnu/libresolv.so.2", O_RDONLY|O_CLOEXEC) = 3
  46. read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\320:\0\0\0\0\0\0"..., 832) = 832
  47. fstat(3, {st_mode=S_IFREG|0644, st_size=101240, ...}) = 0
  48. mmap(NULL, 2206376, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f4ab88a1000
  49. mprotect(0x7f4ab88b8000, 2097152, PROT_NONE) = 0
  50. mmap(0x7f4ab8ab8000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x17000) = 0x7f4ab8ab8000
  51. mmap(0x7f4ab8aba000, 6824, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f4ab8aba000
  52. close(3) = 0
  53. access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
  54. open("/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3
  55. read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\320\37\2\0\0\0\0\0"..., 832) = 832
  56. fstat(3, {st_mode=S_IFREG|0755, st_size=1840928, ...}) = 0
  57. mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4ab8edd000
  58. mmap(NULL, 3949248, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f4ab84dc000
  59. mprotect(0x7f4ab8697000, 2093056, PROT_NONE) = 0
  60. mmap(0x7f4ab8896000, 24576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1ba000) = 0x7f4ab8896000
  61. mmap(0x7f4ab889c000, 17088, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f4ab889c000
  62. close(3) = 0
  63. mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4ab8edc000
  64. mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4ab8eda000
  65. arch_prctl(ARCH_SET_FS, 0x7f4ab8eda740) = 0
  66. mprotect(0x7f4ab8896000, 16384, PROT_READ) = 0
  67. mprotect(0x7f4ab8ab8000, 4096, PROT_READ) = 0
  68. mprotect(0x7f4ab8cc8000, 4096, PROT_READ) = 0
  69. mprotect(0x606000, 4096, PROT_READ) = 0
  70. mprotect(0x7f4ab8eed000, 4096, PROT_READ) = 0
  71. munmap(0x7f4ab8ede000, 53028) = 0
  72. brk(0) = 0x239e000
  73. brk(0x23bf000) = 0x23bf000
  74. socket(PF_LOCAL, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0) = 3
  75. connect(3, {sa_family=AF_LOCAL, sun_path="/var/run/nscd/socket"}, 110) = -1 ENOENT (No such file or directory)
  76. close(3) = 0
  77. socket(PF_LOCAL, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0) = 3
  78. connect(3, {sa_family=AF_LOCAL, sun_path="/var/run/nscd/socket"}, 110) = -1 ENOENT (No such file or directory)
  79. close(3) = 0
  80. open("/etc/nsswitch.conf", O_RDONLY|O_CLOEXEC) = 3
  81. fstat(3, {st_mode=S_IFREG|0644, st_size=475, ...}) = 0
  82. mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4ab8eea000
  83. read(3, "# /etc/nsswitch.conf\n#\n# Example"..., 4096) = 475
  84. read(3, "", 4096) = 0
  85. close(3) = 0
  86. munmap(0x7f4ab8eea000, 4096) = 0
  87. open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3
  88. fstat(3, {st_mode=S_IFREG|0644, st_size=53028, ...}) = 0
  89. mmap(NULL, 53028, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f4ab8ede000
  90. close(3) = 0
  91. access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
  92. open("/lib/x86_64-linux-gnu/tls/x86_64/libnss_db.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
  93. stat("/lib/x86_64-linux-gnu/tls/x86_64", 0x7fffcaf334e0) = -1 ENOENT (No such file or directory)
  94. open("/lib/x86_64-linux-gnu/tls/libnss_db.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
  95. stat("/lib/x86_64-linux-gnu/tls", 0x7fffcaf334e0) = -1 ENOENT (No such file or directory)
  96. open("/lib/x86_64-linux-gnu/x86_64/libnss_db.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
  97. stat("/lib/x86_64-linux-gnu/x86_64", 0x7fffcaf334e0) = -1 ENOENT (No such file or directory)
  98. open("/lib/x86_64-linux-gnu/libnss_db.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
  99. stat("/lib/x86_64-linux-gnu", {st_mode=S_IFDIR|0755, st_size=12288, ...}) = 0
  100. open("/usr/lib/x86_64-linux-gnu/tls/x86_64/libnss_db.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
  101. stat("/usr/lib/x86_64-linux-gnu/tls/x86_64", 0x7fffcaf334e0) = -1 ENOENT (No such file or directory)
  102. open("/usr/lib/x86_64-linux-gnu/tls/libnss_db.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
  103. stat("/usr/lib/x86_64-linux-gnu/tls", 0x7fffcaf334e0) = -1 ENOENT (No such file or directory)
  104. open("/usr/lib/x86_64-linux-gnu/x86_64/libnss_db.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
  105. stat("/usr/lib/x86_64-linux-gnu/x86_64", 0x7fffcaf334e0) = -1 ENOENT (No such file or directory)
  106. open("/usr/lib/x86_64-linux-gnu/libnss_db.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
  107. stat("/usr/lib/x86_64-linux-gnu", {st_mode=S_IFDIR|0755, st_size=36864, ...}) = 0
  108. open("/lib/tls/x86_64/libnss_db.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
  109. stat("/lib/tls/x86_64", 0x7fffcaf334e0) = -1 ENOENT (No such file or directory)
  110. open("/lib/tls/libnss_db.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
  111. stat("/lib/tls", 0x7fffcaf334e0) = -1 ENOENT (No such file or directory)
  112. open("/lib/x86_64/libnss_db.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
  113. stat("/lib/x86_64", 0x7fffcaf334e0) = -1 ENOENT (No such file or directory)
  114. open("/lib/libnss_db.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
  115. stat("/lib", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
  116. open("/usr/lib/tls/x86_64/libnss_db.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
  117. stat("/usr/lib/tls/x86_64", 0x7fffcaf334e0) = -1 ENOENT (No such file or directory)
  118. open("/usr/lib/tls/libnss_db.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
  119. stat("/usr/lib/tls", 0x7fffcaf334e0) = -1 ENOENT (No such file or directory)
  120. open("/usr/lib/x86_64/libnss_db.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
  121. stat("/usr/lib/x86_64", 0x7fffcaf334e0) = -1 ENOENT (No such file or directory)
  122. open("/usr/lib/libnss_db.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
  123. stat("/usr/lib", {st_mode=S_IFDIR|0755, st_size=12288, ...}) = 0
  124. munmap(0x7f4ab8ede000, 53028) = 0
  125. open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3
  126. fstat(3, {st_mode=S_IFREG|0644, st_size=53028, ...}) = 0
  127. mmap(NULL, 53028, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f4ab8ede000
  128. close(3) = 0
  129. access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
  130. open("/lib/x86_64-linux-gnu/libnss_files.so.2", O_RDONLY|O_CLOEXEC) = 3
  131. read(3, "\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
  132. fstat(3, {st_mode=S_IFREG|0644, st_size=47712, ...}) = 0
  133. mmap(NULL, 2144392, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f4ab82d0000
  134. mprotect(0x7f4ab82db000, 2093056, PROT_NONE) = 0
  135. mmap(0x7f4ab84da000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0xa000) = 0x7f4ab84da000
  136. close(3) = 0
  137. mprotect(0x7f4ab84da000, 4096, PROT_READ) = 0
  138. munmap(0x7f4ab8ede000, 53028) = 0
  139. open("/etc/services", O_RDONLY|O_CLOEXEC) = 3
  140. fstat(3, {st_mode=S_IFREG|0644, st_size=19558, ...}) = 0
  141. mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4ab8eea000
  142. read(3, "# Network services, Internet sty"..., 4096) = 4096
  143. read(3, "\t\t# IPX\nipx\t\t213/udp\nimap3\t\t220/"..., 4096) = 4096
  144. read(3, "nessus\t\t1241/tcp\t\t\t# Nessus vuln"..., 4096) = 4096
  145. read(3, "qmaster\t6444/tcp\tsge_qmaster\t# G"..., 4096) = 4096
  146. read(3, "ion\nspamd\t\t783/tcp\t\t\t\t# spamassa"..., 4096) = 3174
  147. read(3, "", 4096) = 0
  148. close(3) = 0
  149. munmap(0x7f4ab8eea000, 4096) = 0
  150. socket(PF_INET, SOCK_STREAM, IPPROTO_TCP) = 3
  151. fcntl(3, F_GETFL) = 0x2 (flags O_RDWR)
  152. fcntl(3, F_SETFL, O_RDWR|O_NONBLOCK) = 0
  153. connect(3, {sa_family=AF_INET, sin_port=htons(25), sin_addr=inet_addr("10.0.2.10")}, 16) = -1 EINPROGRESS (Operation now in progress)
  154. select(4, NULL, [3], NULL, NULL
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