diff --git a/TMP/Practice/01.11/data.h b/TMP/Practice/01.11/data.h
new file mode 100644
index 0000000..ae8a441
--- /dev/null
+++ b/TMP/Practice/01.11/data.h
@@ -0,0 +1,12 @@
+#define DATA "\
+
+
+
+
+
+ Document</ title>
+ </ head>
+ <body>
+
+ </ body> < / html >
+ "
\ No newline at end of file
diff --git a/TMP/Practice/01.11/inet.c b/TMP/Practice/01.11/inet.c
new file mode 100644
index 0000000..2c69301
--- /dev/null
+++ b/TMP/Practice/01.11/inet.c
@@ -0,0 +1,146 @@
+#include <netinet/in.h>
+#include <netdb.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <signal.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+
+#define FIN "exit"
+#define FINS "exit_s"
+#define FINC "exit_c"
+#define BUF 1024
+#define DATA "Answer"
+#define GET "GET"
+#define HTTPOK "HTTP/1.1 200 OK\n\n"
+#define INDEX "index.html"
+// #include "data.h"
+
+void session(int msgsock)
+{
+ int sock;
+ socklen_t length;
+ struct sockaddr_in server;
+ char ibuf[BUF];
+ char obuf[BUF];
+ int rval, sval;
+ int fd, offt;
+ do
+ {
+ memset(ibuf, 0, BUF);
+ if ((rval = read(msgsock, ibuf, 1024)) == -1)
+ perror("reading stream message");
+ dprintf(1, "-[%d]\n", rval);
+ if (rval == 0)
+ printf("Connection finished\n");
+ else
+ {
+ dprintf(1, "[%s]\n", ibuf);
+ memset(obuf, 0, BUF);
+ if (!strncmp(ibuf, GET, 3))
+ {
+#ifdef INDEX
+ strcpy(obuf, HTTPOK);
+ offt = strlen(obuf);
+ fd = open(INDEX, O_RDONLY);
+ read(fd, obuf + offt, BUF - offt);
+ close(fd);
+#else
+ strcpy(obuf, DATA1);
+#endif
+ }
+ else
+ {
+ strcpy(obuf, DATA);
+ }
+ sval = send(msgsock, obuf, strlen(obuf), 0);
+ dprintf(1, "Sent [%d]\n", sval);
+ }
+ } while ((rval > 0) && (strncmp(ibuf, GET, 3)));
+ exit(0);
+}
+
+int main(int argc, char *argv[])
+{
+ int sock;
+ socklen_t length;
+ struct sockaddr_in server;
+ int msgsock;
+ pid_t pid;
+ const int enable = 1;
+
+ sock = socket(AF_INET, SOCK_STREAM, 0);
+ if (sock == -1)
+ {
+ perror("opening stream socket");
+ exit(1);
+ }
+ if (setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, &enable, sizeof(int)) < 0)
+ exit(2);
+ server.sin_family = AF_INET;
+ server.sin_addr.s_addr = htonl(INADDR_ANY);
+ if (argc == 2)
+ server.sin_port = htons(atoi(argv[1]));
+ else
+ server.sin_port = 0;
+
+ if (bind(sock, (struct sockaddr *)&server, sizeof server) == -1)
+ {
+ perror("binding stream socket");
+ exit(1);
+ }
+
+ length = sizeof server;
+ if (getsockname(sock, (struct sockaddr *)&server, &length) == -1)
+ {
+ perror("getting socket name");
+ exit(1);
+ }
+ printf("Socket port %d\n", ntohs(server.sin_port));
+
+ listen(sock, 5);
+ pid_t cpid;
+ do
+ {
+ if ((msgsock = accept(sock, (struct sockaddr *)NULL, (socklen_t *)NULL)) == -1)
+ perror("accept");
+ else
+ {
+ cpid = fork();
+ if (cpid == 0)
+ {
+ session(msgsock);
+ }
+ }
+ close(msgsock);
+ } while (1);
+ /*
+ do {
+ if ((msgsock = accept(sock,(struct sockaddr *) NULL,(socklen_t *) NULL)) == -1)
+ perror("accept");
+ else
+ do {
+ memset(ibuf, 0, BUF);
+ if ((rval = read(msgsock, ibuf, 1024)) == -1) perror("reading stream message");
+ dprintf(1, "-[%d]\n", rval);
+ if (rval == 0) printf("Connection finished\n");
+ else{
+ dprintf(1, "[%s]\n", ibuf);
+ memset(obuf, 0, BUF);
+ if (!strncmp(ibuf, GET, 3)){
+ strcpy(obuf, DATA1);
+ }else{
+ strcpy(obuf, DATA);
+ }
+ sval = send(msgsock, obuf, strlen(obuf), 0);
+ dprintf(1, "Sent [%d]\n", sval);
+ }
+ } while ((rval > 0) && (strncmp(ibuf, GET, 3)));
+ close(msgsock);
+ } while (strcmp(ibuf, FIN))
+ */
+ exit(0);
+}
diff --git a/TMP/Practice/01.11/o_app b/TMP/Practice/01.11/o_app
new file mode 100755
index 0000000..11469fd
Binary files /dev/null and b/TMP/Practice/01.11/o_app differ
diff --git a/TMP/Practice/01.11/on_app2 b/TMP/Practice/01.11/on_app2
new file mode 100755
index 0000000..001225f
Binary files /dev/null and b/TMP/Practice/01.11/on_app2 differ
diff --git a/TMP/Practice/01.11/on_less2.c b/TMP/Practice/01.11/on_less2.c
new file mode 100644
index 0000000..fd8a104
--- /dev/null
+++ b/TMP/Practice/01.11/on_less2.c
@@ -0,0 +1,29 @@
+#include <stdio.h>
+#include <sys/types.h>
+#include <dirent.h>
+#include <string.h>
+#include <stdlib.h>
+
+int main(int argc, char *argv[])
+{
+
+ struct dirent **namelist;
+ int n;
+ char dir[255] = ".";
+
+ if (argc > 1)
+ strcpy(dir, argv[1]);
+ n = scandir(dir, &namelist, 0, alphasort);
+ if (n < 0)
+ perror("scandir");
+ else
+ {
+ while (n--)
+ {
+ printf("%s\n", namelist[n]->d_name);
+ free(namelist[n]);
+ }
+ free(namelist);
+ }
+ return 0;
+}
\ No newline at end of file