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[z.facultad/75.74/practicos.git] / practicas / pipi / informe.rtf

diff --git a/practicas/pipi/informe.rtf b/practicas/pipi/informe.rtf
index eebe2628712e11279cba086f3234d5d4603a70ab..3f2c628507019a3bd8fc58b03bc7159ba0561022 100644 (file)
--- a/practicas/pipi/informe.rtf
+++ b/practicas/pipi/informe.rtf
@@ -9,105 +9,105 @@
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-\pard\plain\ltrpar\qc\s28\itap0{\s28\f0\fs52\b\lang1034{\*\listtag0}\abinodiroverride\ltrch Sistemas Distribuidos I (75.74)}{\s28\f1\fs24\lang1034{\*\listtag1003}\par}
-\pard\plain\ltrpar\qc\s28\itap0{\s28\f0\fs28\lang1034{\*\listtag0}\abinodiroverride\ltrch TP 2: Sistema de resoluci\'f3n de nombres sobre IP adaptado a sockets}{\s28\f0\fs28\lang1034{\*\listtag0}\par}
-\pard\plain\ltrpar\qc\s28\itap0{\field\fdledit{\*\fldinst {\ TOC }}}
-\pard\plain\ltrpar\ql\s28\itap0{\s28\f1\fs24\lang1034{\*\listtag0}\par}
-\pard\plain\ltrpar\ql\sb440\sa60\s24\itap0{\s24\f0\fs34\b\lang1034{\*\listtag0}\abinodiroverride\ltrch DNS}{\s24\f0\fs34\b\lang1034{\*\listtag0}\par}
-\pard\plain\ltrpar\ql\sb440\sa60\s25\itap0{\s25\f0\fs28\b\lang1034{\*\listtag0}\abinodiroverride\ltrch Diagrama de secuencia}{\s25\f0\fs28\b\lang1034{\*\listtag0}\par}
-\pard\plain\ltrpar\ql\s28\itap0{\s28\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch \page }{\s28\f1\fs24\lang1034{\*\listtag0}\par}
-\pard\plain\ltrpar\ql\sb440\sa60\s25\itap0{\s25\f0\fs28\b\lang1034{\*\listtag0}\abinodiroverride\ltrch Dise\'f1o de mensajes de intercambio de DNS.}{\s25\f0\fs28\b\lang1034{\*\listtag0}\par}
-\pard\plain\ltrpar\ql\s28\itap0{\s28\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch Petici\'f3n de un nameserver}{\s28\f1\fs24\lang1034{\*\listtag0}\par}
-\pard\plain\ltrpar\ql\s28\itap0{\s28\f2\fs22\lang1034{\*\listtag0}\abinodiroverride\ltrch +------------+------------+------------+}{\s28\f2\fs22\lang1034{\*\listtag0}\par}
-\pard\plain\ltrpar\ql\s28\itap0{\s28\f2\fs22\lang1034{\*\listtag0}\abinodiroverride\ltrch | QUERY_TYPE |    SIZE    |    NAME    |}{\s28\f2\fs22\lang1034{\*\listtag0}\par}
-\pard\plain\ltrpar\ql\s28\itap0{\s28\f2\fs22\lang1034{\*\listtag0}\abinodiroverride\ltrch +------------+------------+------------+}{\s28\f2\fs22\lang1034{\*\listtag0}\par}
-\pard\plain\ltrpar\ql\s28\itap0{\s28\f2\fs22\lang1034{\*\listtag0}\abinodiroverride\ltrch /-- 1 byte --/- 2 bytes --/- variable -/}{\s28\f2\fs22\lang1034{\*\listtag0}\par}
-\pard\plain\ltrpar\ql\s28\itap0{\s28\f1\fs24\lang1034{\*\listtag0}\par}
-\pard\plain\ltrpar\ql\s28\itap0{\s28\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch QUERY_TYPE en realidad es una cabecera com\'fan a las peticiones y respuestas, cuyos c\'f3digos pueden ser los siguientes:}{\s28\f1\fs24\lang1034{\*\listtag0}\par}
-\pard\plain\ltrpar\ql\s28\itap0{\s28\f2\fs22\b\lang1034{\*\listtag0}\abinodiroverride\ltrch Requests}{\s28\f2\fs22\b\lang1034{\*\listtag0}\par}
-\pard\plain\ltrpar\ql\s28\itap0{\s28\f2\fs22\lang1034{\*\listtag0}\abinodiroverride\ltrch RP_REQ_DIRECT   -> B\'fasqueda directa (inter nameservers)}{\s28\f2\fs22\lang1034{\*\listtag0}\par}
-\pard\plain\ltrpar\ql\s28\itap0{\s28\f2\fs22\lang1034{\*\listtag0}\abinodiroverride\ltrch RP_REQ_RECURSIVE-> B\'fasqueda recursiva (para resolvers)}{\s28\f2\fs22\lang1034{\*\listtag0}\par}
-\pard\plain\ltrpar\ql\s28\itap0{\s28\f2\fs22\b\lang1034{\*\listtag0}\abinodiroverride\ltrch Responses}{\s28\f2\fs22\b\lang1034{\*\listtag0}\par}
-\pard\plain\ltrpar\ql\s28\itap0{\s28\f2\fs22\lang1034{\*\listtag0}\abinodiroverride\ltrch RP_RES_A        -> OK, se devolvi\'f3 un registro A}{\s28\f2\fs22\lang1034{\*\listtag0}\par}
-\pard\plain\ltrpar\ql\s28\itap0{\s28\f2\fs22\lang1034{\*\listtag0}\abinodiroverride\ltrch RP_RES_NS       -> OK, se devolvi\'f3 un registro NS (s\'f3lo en directo)}{\s28\f2\fs22\lang1034{\*\listtag0}\par}
-\pard\plain\ltrpar\ql\s28\itap0{\s28\f2\fs22\lang1034{\*\listtag0}\abinodiroverride\ltrch RP_RES_NOTFOUND -> No se encontr\'f3}{\s28\f2\fs22\lang1034{\*\listtag0}\par}
-\pard\plain\ltrpar\ql\s28\itap0{\s28\f2\fs22\lang1034{\*\listtag0}\abinodiroverride\ltrch RP_RES_TIMEOUT  -> Tard\'f3 demasiado la consulta}{\s28\f2\fs22\lang1034{\*\listtag0}\par}
-\pard\plain\ltrpar\ql\s28\itap0{\s28\f1\fs24\lang1034{\*\listtag0}\par}
-\pard\plain\ltrpar\ql\s28\itap0{\s28\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch SIZE es el tama\'f1o del string con el nombre a buscar, NAME es el string (de longitud variable). Faltar\'eda agregar un campo con un ID para evitar que se confundan unas respuestas o peticiones con otras.}{\s28\f1\fs24\lang1034{\*\listtag0}\par}
-\pard\plain\ltrpar\ql\s28\itap0{\s28\f1\fs24\lang1034{\*\listtag0}\par}
-\pard\plain\ltrpar\ql\s28\itap0{\s28\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch Respuesta de un nameserver}{\s28\f1\fs24\lang1034{\*\listtag0}\par}
-\pard\plain\ltrpar\ql\s28\itap0{\s28\f2\fs20\lang1034{\*\listtag0}\abinodiroverride\ltrch +-----------+-----------+-----------+-----------+-----------+-----------+}{\s28\f2\fs20\lang1034{\*\listtag0}\par}
-\pard\plain\ltrpar\ql\s28\itap0{\s28\f2\fs20\lang1034{\*\listtag0}\abinodiroverride\ltrch |    RET    |    TTL    |   COUNT   |    IP 1   |    ...    |    IP N   |}{\s28\f2\fs20\lang1034{\*\listtag0}\par}
-\pard\plain\ltrpar\ql\s28\itap0{\s28\f2\fs20\lang1034{\*\listtag0}\abinodiroverride\ltrch +-----------+-----------+-----------+-----------+-----------+-----------+}{\s28\f2\fs20\lang1034{\*\listtag0}\par}
-\pard\plain\ltrpar\ql\s28\itap0{\s28\f2\fs20\lang1034{\*\listtag0}\abinodiroverride\ltrch /-- 1 byte -/- 4 bytes -/-- 1 byte -/- 4 bytes -/- 4 bytes -/- 4 bytes -/}{\s28\f2\fs20\lang1034{\*\listtag0}\par}
-\pard\plain\ltrpar\ql\s28\itap0{\s28\f1\fs24\lang1034{\*\listtag0}\par}
-\pard\plain\ltrpar\ql\s28\itap0{\s28\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch RET es del mismo tipo que QUERY_TYPE y se hizo as\'ed para poder reconocer si un paquete es un request o un response con s\'f3lo leer el 1er byte. TTL es el tiempo que puede vivir en el cache (en segundos), COUNT es la cantidad de IPs encontradas para ese registro e IP1 a IPN son las IP en s\'ed (cantidad variable).}{\s28\f1\fs24\lang1034{\*\listtag0}\par}
-\pard\plain\ltrpar\ql\sb440\sa60\s25\itap0{\s25\f0\fs28\b\lang1034{\*\listtag0}\abinodiroverride\ltrch Par\'e1metros y resultados de la funci\'f3n gethostbyname()}{\s25\f0\fs28\b\lang1034{\*\listtag0}\par}
-\pard\plain\ltrpar\ql\s28\itap0{\s28\f2\fs20\lang1034{\*\listtag0}\par}
-\pard\plain\ltrpar\ql\s28\itap0{\s28\f2\fs20\lang1034{\*\listtag0}\abinodiroverride\ltrch std::vector< IPAddr > gethostbyname(std::string name, int& result);}{\s28\f2\fs20\lang1034{\*\listtag0}\par}
-\pard\plain\ltrpar\ql\s28\itap0{\s28\f2\fs20\lang1034{\*\listtag0}\par}
-\pard\plain\ltrpar\ql\s28\itap0{\s28\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch Esta funci\'f3n toma como par\'e1metro un string con el nombre de dominio a buscar (por ejemplo "mi.dominio.casa") y retorna un vector de IPs. Si hay un error o no encuentra ninguna el vector se devuelve vac\'edo y se pone el c\'f3digo de error en la variable result. El trabajo de la funci\'f3n es conectarse a todos los nameservers que conozca y env\'ede un pedido de resoluci\'f3n de nombre RECURSIVO, hasta que tenga \'e9xito o se acabe la lista de nameservers disponibles. Por falta de tiempo esta funci\'f3n no est\'e1 implementada del lado del resolver pero s\'ed del nameserver, y es muy muy similar (hace exactamente lo mismo).}{\s28\f1\fs24\lang1034{\*\listtag0}\par}
-\pard\plain\ltrpar\ql\sb440\sa60\s24\itap0{\s24\f0\fs34\b\lang1034{\*\listtag0}\abinodiroverride\ltrch IP}{\s24\f0\fs34\b\lang1034{\*\listtag0}\par}
-\pard\plain\ltrpar\ql\sb440\sa60\s25\itap0{\s25\f0\fs28\b\lang1034{\*\listtag0}\abinodiroverride\ltrch Dise\'f1o del paquete IP}{\s25\f0\fs28\b\lang1034{\*\listtag0}\par}
-\pard\plain\ltrpar\ql\s28\itap0{\s28\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch \page }{\s28\f1\fs24\lang1034{\*\listtag0}\par}
-\pard\plain\ltrpar\ql\s28\itap0{\s28\f2\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch     // Campos}{\s28\f2\fs24\lang1034{\*\listtag0}\par}
-\pard\plain\ltrpar\ql\s28\itap0{\s28\f2\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch     uint8_t version;}{\s28\f2\fs24\lang1034{\*\listtag0}\par}
-\pard\plain\ltrpar\ql\s28\itap0{\s28\f2\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch     uint16_t total_len;}{\s28\f2\fs24\lang1034{\*\listtag0}\par}
-\pard\plain\ltrpar\ql\s28\itap0{\s28\f2\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch     uint16_t id;}{\s28\f2\fs24\lang1034{\*\listtag0}\par}
-\pard\plain\ltrpar\ql\s28\itap0{\s28\f2\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch     uint16_t reserved_flag: 1;}{\s28\f2\fs24\lang1034{\*\listtag0}\par}
-\pard\plain\ltrpar\ql\s28\itap0{\s28\f2\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch     uint16_t df: 1;}{\s28\f2\fs24\lang1034{\*\listtag0}\par}
-\pard\plain\ltrpar\ql\s28\itap0{\s28\f2\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch     uint16_t mf: 1;}{\s28\f2\fs24\lang1034{\*\listtag0}\par}
-\pard\plain\ltrpar\ql\s28\itap0{\s28\f2\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch     uint16_t offset: 13;}{\s28\f2\fs24\lang1034{\*\listtag0}\par}
-\pard\plain\ltrpar\ql\s28\itap0{\s28\f2\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch     uint8_t ttl;}{\s28\f2\fs24\lang1034{\*\listtag0}\par}
-\pard\plain\ltrpar\ql\s28\itap0{\s28\f2\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch     uint8_t proto;}{\s28\f2\fs24\lang1034{\*\listtag0}\par}
-\pard\plain\ltrpar\ql\s28\itap0{\s28\f2\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch     uint16_t checksum;}{\s28\f2\fs24\lang1034{\*\listtag0}\par}
-\pard\plain\ltrpar\ql\s28\itap0{\s28\f2\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch     uint32_t src;}{\s28\f2\fs24\lang1034{\*\listtag0}\par}
-\pard\plain\ltrpar\ql\s28\itap0{\s28\f2\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch     uint32_t dst;}{\s28\f2\fs24\lang1034{\*\listtag0}\par}
-\pard\plain\ltrpar\ql\s28\itap0{\s28\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch \page }{\s28\f1\fs24\lang1034{\*\listtag0}\par}
-\pard\plain\ltrpar\ql\sb440\sa60\s25\itap0{\s25\f0\fs28\b\lang1034{\*\listtag0}\abinodiroverride\ltrch Diagrama de secuencia}{\s25\f0\fs28\b\lang1034{\*\listtag0}\par}
-\pard\plain\ltrpar\ql\s28\itap0{\s28\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch \page }{\s28\f1\fs24\lang1034{\*\listtag0}\par}
-\pard\plain\ltrpar\ql\sb440\sa60\s25\itap0{\s25\f0\fs28\b\lang1034{\*\listtag0}\abinodiroverride\ltrch Cambios}{\s25\f0\fs28\b\lang1034{\*\listtag0}\par}
-\pard\plain\ltrpar\ql\s28\itap0{\s28\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch Se agreg\'f3 principalmente la clase DevTCP que implementa la capa f\'edsica a trav\'e9s de TCP.  Por cada frame saliente a un destino en particular se crea una conexi\'f3n TCP (a menos que ya est\'e9 creada, en cuyo caso se reutiliza) y se escucha por conexiones entrantes para recibir frames (tambi\'e9n guard\'e1ndolas para reutilizarlas). A diferencia del DevQue se env\'eda el tama\'f1o del frame exacto (en realidad se agrega una peque\'f1a cabecera).}{\s28\f1\fs24\lang1034{\*\listtag0}\par}
-\pard\plain\ltrpar\ql\sb440\sa60\s24\itap0{\s24\f0\fs34\b\lang1034{\*\listtag0}\abinodiroverride\ltrch Lista de fuentes de informaci\'f3n}{\s24\f0\fs34\b\lang1034{\*\listtag0}\par}
-\pard\plain\ltrpar\ql\s28\itap0{\s28\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch RFC 1034 - Domain names - concepts and facilities:}{\s28\f1\fs24\lang1034{\*\listtag0}\par}
-\pard\plain\ltrpar\ql\s28\itap0{\s28\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch \tab http://www.faqs.org/rfcs/rfc1034.html}{\s28\f1\fs24\lang1034{\*\listtag0}\par}
-\pard\plain\ltrpar\ql\s28\itap0{\s28\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch \tab Conceptos y desiciones de dise\'f1o del DNS.}{\s28\f1\fs24\lang1034{\*\listtag0}\par}}
\ No newline at end of file
+\pard\plain\ltrpar\qc\s29\sl240\slmult1\itap0{\s29\f0\fs52\b\lang1034{\*\listtag0}\abinodiroverride\ltrch Sistemas Distribuidos I (75.74)}{\s29\f0\fs52\b\lang1034{\*\listtag0}\par}
+\pard\plain\ltrpar\qc\s29\sl240\slmult1\itap0{\s29\f0\fs28\lang1034{\*\listtag0}\abinodiroverride\ltrch TP 2: Sistema de resoluci\'f3n de nombres sobre IP adaptado a sockets}{\s29\f0\fs28\lang1034{\*\listtag0}\par}
+\pard\plain\ltrpar\ql\s29\sl240\slmult1\itap0{\s29\f0\fs28\lang1034{\*\listtag0}\par}
+\pard\plain\ltrpar\ql\sb440\sa60\s25\sl240\slmult1\itap0{\s25\f0\fs34\b\lang1034{\*\listtag0}\abinodiroverride\ltrch DNS}{\s25\f0\fs34\b\lang1034{\*\listtag0}\par}
+\pard\plain\ltrpar\ql\sb440\sa60\s26\sl240\slmult1\itap0{\s26\f0\fs28\b\lang1034{\*\listtag0}\abinodiroverride\ltrch Diagrama de secuencia}{\s26\f0\fs28\b\lang1034{\*\listtag0}\par}
+\pard\plain\ltrpar\ql\s29\sl240\slmult1\itap0{\s29\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch \page }{\s29\f1\fs24\lang1034{\*\listtag0}\par}
+\pard\plain\ltrpar\ql\sb440\sa60\s26\sl240\slmult1\itap0{\s26\f0\fs28\b\lang1034{\*\listtag0}\abinodiroverride\ltrch Dise\'f1o de mensajes de intercambio de DNS.}{\s26\f0\fs28\b\lang1034{\*\listtag0}\par}
+\pard\plain\ltrpar\ql\s29\sl240\slmult1\itap0{\s29\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch Petici\'f3n de un nameserver}{\s29\f1\fs24\lang1034{\*\listtag0}\par}
+\pard\plain\ltrpar\ql\s29\sl240\slmult1\itap0{\s29\f2\fs22\lang1034{\*\listtag0}\abinodiroverride\ltrch +------------+------------+------------+}{\s29\f2\fs22\lang1034{\*\listtag0}\par}
+\pard\plain\ltrpar\ql\s29\sl240\slmult1\itap0{\s29\f2\fs22\lang1034{\*\listtag0}\abinodiroverride\ltrch | QUERY_TYPE |    SIZE    |    NAME    |}{\s29\f2\fs22\lang1034{\*\listtag0}\par}
+\pard\plain\ltrpar\ql\s29\sl240\slmult1\itap0{\s29\f2\fs22\lang1034{\*\listtag0}\abinodiroverride\ltrch +------------+------------+------------+}{\s29\f2\fs22\lang1034{\*\listtag0}\par}
+\pard\plain\ltrpar\ql\s29\sl240\slmult1\itap0{\s29\f2\fs22\lang1034{\*\listtag0}\abinodiroverride\ltrch /-- 1 byte --/- 2 bytes --/- variable -/}{\s29\f2\fs22\lang1034{\*\listtag0}\par}
+\pard\plain\ltrpar\ql\s29\sl240\slmult1\itap0{\s29\f2\fs22\lang1034{\*\listtag0}\par}
+\pard\plain\ltrpar\ql\s29\sl240\slmult1\itap0{\s29\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch QUERY_TYPE en realidad es una cabecera com\'fan a las peticiones y respuestas, cuyos c\'f3digos pueden ser los siguientes:}{\s29\f1\fs24\lang1034{\*\listtag0}\par}
+\pard\plain\ltrpar\ql\s29\sl240\slmult1\itap0{\s29\f2\fs22\b\lang1034{\*\listtag0}\abinodiroverride\ltrch Requests}{\s29\f2\fs22\b\lang1034{\*\listtag0}\par}
+\pard\plain\ltrpar\ql\s29\sl240\slmult1\itap0{\s29\f2\fs22\lang1034{\*\listtag0}\abinodiroverride\ltrch RP_REQ_DIRECT   -> B\'fasqueda directa (inter nameservers)}{\s29\f2\fs22\lang1034{\*\listtag0}\par}
+\pard\plain\ltrpar\ql\s29\sl240\slmult1\itap0{\s29\f2\fs22\lang1034{\*\listtag0}\abinodiroverride\ltrch RP_REQ_RECURSIVE-> B\'fasqueda recursiva (para resolvers)}{\s29\f2\fs22\lang1034{\*\listtag0}\par}
+\pard\plain\ltrpar\ql\s29\sl240\slmult1\itap0{\s29\f2\fs22\b\lang1034{\*\listtag0}\abinodiroverride\ltrch Responses}{\s29\f2\fs22\b\lang1034{\*\listtag0}\par}
+\pard\plain\ltrpar\ql\s29\sl240\slmult1\itap0{\s29\f2\fs22\lang1034{\*\listtag0}\abinodiroverride\ltrch RP_RES_A        -> OK, se devolvi\'f3 un registro A}{\s29\f2\fs22\lang1034{\*\listtag0}\par}
+\pard\plain\ltrpar\ql\s29\sl240\slmult1\itap0{\s29\f2\fs22\lang1034{\*\listtag0}\abinodiroverride\ltrch RP_RES_NS       -> OK, se devolvi\'f3 un registro NS (s\'f3lo en directo)}{\s29\f2\fs22\lang1034{\*\listtag0}\par}
+\pard\plain\ltrpar\ql\s29\sl240\slmult1\itap0{\s29\f2\fs22\lang1034{\*\listtag0}\abinodiroverride\ltrch RP_RES_NOTFOUND -> No se encontr\'f3}{\s29\f2\fs22\lang1034{\*\listtag0}\par}
+\pard\plain\ltrpar\ql\s29\sl240\slmult1\itap0{\s29\f2\fs22\lang1034{\*\listtag0}\abinodiroverride\ltrch RP_RES_TIMEOUT  -> Tard\'f3 demasiado la consulta}{\s29\f2\fs22\lang1034{\*\listtag0}\par}
+\pard\plain\ltrpar\ql\s29\sl240\slmult1\itap0{\s29\f2\fs22\lang1034{\*\listtag0}\par}
+\pard\plain\ltrpar\ql\s29\sl240\slmult1\itap0{\s29\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch SIZE es el tama\'f1o del string con el nombre a buscar, NAME es el string (de longitud variable). Faltar\'eda agregar un campo con un ID para evitar que se confundan unas respuestas o peticiones con otras.}{\s29\f1\fs24\lang1034{\*\listtag0}\par}
+\pard\plain\ltrpar\ql\s29\sl240\slmult1\itap0{\s29\f1\fs24\lang1034{\*\listtag0}\par}
+\pard\plain\ltrpar\ql\s29\sl240\slmult1\itap0{\s29\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch Respuesta de un nameserver}{\s29\f1\fs24\lang1034{\*\listtag0}\par}
+\pard\plain\ltrpar\ql\s29\sl240\slmult1\itap0{\s29\f2\fs20\lang1034{\*\listtag0}\abinodiroverride\ltrch +-----------+-----------+-----------+-----------+-----------+-----------+}{\s29\f2\fs20\lang1034{\*\listtag0}\par}
+\pard\plain\ltrpar\ql\s29\sl240\slmult1\itap0{\s29\f2\fs20\lang1034{\*\listtag0}\abinodiroverride\ltrch |    RET    |    TTL    |   COUNT   |    IP 1   |    ...    |    IP N   |}{\s29\f2\fs20\lang1034{\*\listtag0}\par}
+\pard\plain\ltrpar\ql\s29\sl240\slmult1\itap0{\s29\f2\fs20\lang1034{\*\listtag0}\abinodiroverride\ltrch +-----------+-----------+-----------+-----------+-----------+-----------+}{\s29\f2\fs20\lang1034{\*\listtag0}\par}
+\pard\plain\ltrpar\ql\s29\sl240\slmult1\itap0{\s29\f2\fs20\lang1034{\*\listtag0}\abinodiroverride\ltrch /-- 1 byte -/- 4 bytes -/-- 1 byte -/- 4 bytes -/- 4 bytes -/- 4 bytes -/}{\s29\f2\fs20\lang1034{\*\listtag0}\par}
+\pard\plain\ltrpar\ql\s29\sl240\slmult1\itap0{\s29\f2\fs20\lang1034{\*\listtag0}\par}
+\pard\plain\ltrpar\ql\s29\sl240\slmult1\itap0{\s29\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch RET es del mismo tipo que QUERY_TYPE y se hizo as\'ed para poder reconocer si un paquete es un request o un response con s\'f3lo leer el 1er byte. TTL es el tiempo que puede vivir en el cache (en segundos), COUNT es la cantidad de IPs encontradas para ese registro e IP1 a IPN son las IP en s\'ed (cantidad variable).}{\s29\f1\fs24\lang1034{\*\listtag0}\par}
+\pard\plain\ltrpar\ql\sb440\sa60\s26\sl240\slmult1\itap0{\s26\f0\fs28\b\lang1034{\*\listtag0}\abinodiroverride\ltrch Par\'e1metros y resultados de la funci\'f3n gethostbyname()}{\s26\f0\fs28\b\lang1034{\*\listtag0}\par}
+\pard\plain\ltrpar\ql\s29\sl240\slmult1\itap0{\s29\f0\fs28\b\lang1034{\*\listtag0}\par}
+\pard\plain\ltrpar\ql\s29\sl240\slmult1\itap0{\s29\f2\fs20\lang1034{\*\listtag0}\abinodiroverride\ltrch result_t gethostbyname(std::string name, std::vector< IPAddr >& ips);}{\s29\f2\fs20\lang1034{\*\listtag0}\par}
+\pard\plain\ltrpar\ql\s29\sl240\slmult1\itap0{\s29\f2\fs20\lang1034{\*\listtag0}\par}
+\pard\plain\ltrpar\ql\s29\sl240\slmult1\itap0{\s29\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch Esta funci\'f3n toma como par\'e1metro un string con el nombre de dominio a buscar (por ejemplo "mi.dominio.casa") y retorna un vector de IPs. Si hay un error o no encuentra ninguna el vector se devuelve intacto y se devuelve el c\'f3digo de error, que puede ser OK (respuesta v\'e1lida), HOST_NOT_FOUND (no se encuentra dicho host), NO_RECOVERY (error irreparable, por ejemplo, no hay nameservers) o TRY_AGAIN (rrror temporal, por ejemplo, timeout). El trabajo de la funci\'f3n es conectarse a todos los nameservers que conozca y enviar un pedido de resoluci\'f3n de nombre RECURSIVO, hasta que tenga \'e9xito o se acabe la lista de nameservers disponibles. }{\s29\f1\fs24\lang1034{\*\listtag0}\par}
+\pard\plain\ltrpar\ql\sb440\sa60\s25\sl240\slmult1\itap0{\s25\f0\fs34\b\lang1034{\*\listtag0}\abinodiroverride\ltrch IP}{\s25\f0\fs34\b\lang1034{\*\listtag0}\par}
+\pard\plain\ltrpar\ql\sb440\sa60\s26\sl240\slmult1\itap0{\s26\f0\fs28\b\lang1034{\*\listtag0}\abinodiroverride\ltrch Dise\'f1o del paquete IP}{\s26\f0\fs28\b\lang1034{\*\listtag0}\par}
+\pard\plain\ltrpar\ql\s29\sl240\slmult1\itap0{\s29\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch \page }{\s29\f1\fs24\lang1034{\*\listtag0}\par}
+\pard\plain\ltrpar\ql\s29\sl240\slmult1\itap0{\s29\f2\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch     // Campos}{\s29\f2\fs24\lang1034{\*\listtag0}\par}
+\pard\plain\ltrpar\ql\s29\sl240\slmult1\itap0{\s29\f2\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch     uint8_t version;}{\s29\f2\fs24\lang1034{\*\listtag0}\par}
+\pard\plain\ltrpar\ql\s29\sl240\slmult1\itap0{\s29\f2\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch     uint16_t total_len;}{\s29\f2\fs24\lang1034{\*\listtag0}\par}
+\pard\plain\ltrpar\ql\s29\sl240\slmult1\itap0{\s29\f2\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch     uint16_t id;}{\s29\f2\fs24\lang1034{\*\listtag0}\par}
+\pard\plain\ltrpar\ql\s29\sl240\slmult1\itap0{\s29\f2\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch     uint16_t reserved_flag: 1;}{\s29\f2\fs24\lang1034{\*\listtag0}\par}
+\pard\plain\ltrpar\ql\s29\sl240\slmult1\itap0{\s29\f2\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch     uint16_t df: 1;}{\s29\f2\fs24\lang1034{\*\listtag0}\par}
+\pard\plain\ltrpar\ql\s29\sl240\slmult1\itap0{\s29\f2\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch     uint16_t mf: 1;}{\s29\f2\fs24\lang1034{\*\listtag0}\par}
+\pard\plain\ltrpar\ql\s29\sl240\slmult1\itap0{\s29\f2\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch     uint16_t offset: 13;}{\s29\f2\fs24\lang1034{\*\listtag0}\par}
+\pard\plain\ltrpar\ql\s29\sl240\slmult1\itap0{\s29\f2\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch     uint8_t ttl;}{\s29\f2\fs24\lang1034{\*\listtag0}\par}
+\pard\plain\ltrpar\ql\s29\sl240\slmult1\itap0{\s29\f2\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch     uint8_t proto;}{\s29\f2\fs24\lang1034{\*\listtag0}\par}
+\pard\plain\ltrpar\ql\s29\sl240\slmult1\itap0{\s29\f2\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch     uint16_t checksum;}{\s29\f2\fs24\lang1034{\*\listtag0}\par}
+\pard\plain\ltrpar\ql\s29\sl240\slmult1\itap0{\s29\f2\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch     uint32_t src;}{\s29\f2\fs24\lang1034{\*\listtag0}\par}
+\pard\plain\ltrpar\ql\s29\sl240\slmult1\itap0{\s29\f2\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch     uint32_t dst;}{\s29\f2\fs24\lang1034{\*\listtag0}\par}
+\pard\plain\ltrpar\ql\s29\sl240\slmult1\itap0{\s29\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch \page }{\s29\f1\fs24\lang1034{\*\listtag0}\par}
+\pard\plain\ltrpar\ql\sb440\sa60\s26\sl240\slmult1\itap0{\s26\f0\fs28\b\lang1034{\*\listtag0}\abinodiroverride\ltrch Diagrama de secuencia}{\s26\f0\fs28\b\lang1034{\*\listtag0}\par}
+\pard\plain\ltrpar\ql\s29\sl240\slmult1\itap0{\s29\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch \page }{\s29\f1\fs24\lang1034{\*\listtag0}\par}
+\pard\plain\ltrpar\ql\sb440\sa60\s26\sl240\slmult1\itap0{\s26\f0\fs28\b\lang1034{\*\listtag0}\abinodiroverride\ltrch Cambios}{\s26\f0\fs28\b\lang1034{\*\listtag0}\par}
+\pard\plain\ltrpar\ql\s29\sl240\slmult1\itap0{\s29\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch Se agreg\'f3 principalmente la clase DevTCP que implementa la capa f\'edsica a trav\'e9s de TCP.  Por cada frame saliente a un destino en particular se crea una conexi\'f3n TCP (a menos que ya est\'e9 creada, en cuyo caso se reutiliza) y se escucha por conexiones entrantes para recibir frames (tambi\'e9n guard\'e1ndolas para reutilizarlas). A diferencia del DevQue se env\'eda el tama\'f1o del frame exacto (en realidad se agrega una peque\'f1a cabecera).}{\s29\f1\fs24\lang1034{\*\listtag0}\par}
+\pard\plain\ltrpar\ql\sb440\sa60\s25\sl240\slmult1\itap0{\s25\f0\fs34\b\lang1034{\*\listtag0}\abinodiroverride\ltrch Lista de fuentes de informaci\'f3n}{\s25\f0\fs34\b\lang1034{\*\listtag0}\par}
+\pard\plain\ltrpar\ql\s29\sl240\slmult1\itap0{\s29\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch RFC 1034 - Domain names - concepts and facilities:}{\s29\f1\fs24\lang1034{\*\listtag0}\par}
+\pard\plain\ltrpar\ql\s29\sl240\slmult1\itap0{\s29\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch \tab http://www.faqs.org/rfcs/rfc1034.html}{\s29\f1\fs24\lang1034{\*\listtag0}\par}
+\pard\plain\ltrpar\ql\s29\sl240\slmult1\itap0{\s29\f1\fs24\lang1034{\*\listtag0}\abinodiroverride\ltrch \tab Conceptos y desiciones de dise\'f1o del DNS.}{\s29\f1\fs24\lang1034{\*\listtag0}\par}}
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