Initial commit

2026-06-16 10:56:40 +08:00
commit d2f95e0e27
2047 changed files with 619063 additions and 0 deletions
@@ -0,0 +1,118 @@
+#if defined (WIN32) || defined (__CYGWIN__)
+#include <windows.h>
+#include <winsock.h>
+#else
+#include <netdb.h>
+#include <netinet/in.h>
+#include <sys/time.h>
+#define closesocket(x) close (x)
+#endif
+#include <sys/stat.h>
+#include "../../Core/kcp/feclib/fec.h"
+size_t Send (void *buf, size_t size, size_t count, void *dummy)
+{ // fdopen ing is simpler under *nix, but illegal under WinSock.
+  return send (*(int*) dummy, buf, size * count, 0);
+}
+
+#ifdef _CONSOLE
+#define mainreturn(x) \
+    fprintf (stderr, "Press enter to exit.\n"); \
+    getchar (); /* Behave acceptable to Windoze users. */ \
+    return x
+#else
+#define mainreturn(x) return x
+#endif
+
+int main (int argc, char *argv[])
+{
+  fecEncoder *e;
+  char *msg;
+  int sock, n, doneWithSwitches = 0, r = 10, connected = 0, kbps = 64;
+  fecPayload pay[256];
+  struct sockaddr_in sin;
+  struct hostent *he;
+#if defined (WIN32) || defined (__CYGWIN__)
+  WSADATA localWSA;
+  if (WSAStartup (MAKEWORD(1,1),&localWSA) != 0) {
+    fprintf (stderr, "Unable to load wsock32.dll\n");
+    mainreturn (1);
+  }
+#endif
+
+  fprintf (stderr, "%s: %s\n", argv[0], FEC_COPYRIGHT);
+  if (argc < 3) {
+    fprintf (stderr,
+"Usage : %s a.b.c.d [-p port] [-r r] [-b kiloBitsPerSecond] [--] file1 ...\n"
+"Sends the files to the specified address (which may be a multicast adress)\n"
+"using the unreliable UDP protocol. The files are encoded with `forward\n"
+"error correction' techniques so that the receiver will in most cases be\n"
+"able to recover any data that may have been lost.\n\n"
+"  r is the amount of redundancy to add, expressed as a percentage\n",
+      argv[0]);
+    mainreturn (5);
+  }
+
+  if ((sock = socket (PF_INET, SOCK_DGRAM, 0)) == -1) {
+    fprintf (stderr, "Unable to make internet socket\n");
+    mainreturn (3);
+  }
+
+  memset (&sin, 0, sizeof (sin));
+  sin.sin_family = AF_INET;
+  if (strspn (argv[1], "0123456789.") != strlen (argv[1])) {
+    if ((he = gethostbyname (argv[1])) == NULL) {
+      fprintf (stderr, "Unknown host %s\n", argv[1]);
+      mainreturn (4);
+    }
+    sin.sin_addr = *(struct in_addr *) he->h_addr;
+  }
+  else *(unsigned*)&sin.sin_addr = inet_addr (argv[1]);
+  sin.sin_port = SUGGESTED_FEC_UDP_PORT_NUMBER;
+
+  for (;argc >= 3; argc--, argv++) {
+    if (doneWithSwitches || argv[2][0] != '-') {
+      FILE *f = fopen (argv[2], "rb");
+      if (!connected) {
+        connect (sock, (struct sockaddr *) &sin, sizeof (sin));
+        connected = 1;
+      }
+      if (!f) fprintf (stderr, "Unable to open %s\n", argv[2]);
+      else {
+        struct stat st;
+        fstat (fileno (f), &st);
+        n = (st.st_size + sizeof (pay) - 1) / sizeof (pay);
+        e = NewFecEncoder (&sock, Send, &msg, sizeof (pay),
+          n, n * r / 100 , 40, 4, kbps * 1000);
+        if (!e) fprintf (stderr, "%s\n", msg);
+        else {
+          while (fread (pay, 1, sizeof (pay), f) > 0) {
+            FecEncode (pay, e);
+          }
+          DeleteFecEncoder (e);
+#if defined (WIN32)
+          Sleep (30000);
+#else
+          sleep (30);
+#endif
+        }
+        fclose (f);
+      }
+    }
+    else if (strcmp (argv[2], "-p") == 0) {
+      sin.sin_port = htons ((short) atoi (argv[3]));
+      argc--, argv++;
+    }
+    else if (strcmp (argv[2], "-r") == 0) {
+      r = atoi (argv[3]);
+      argc--, argv++;
+    }
+    else if (strcmp (argv[2], "-b") == 0) {
+      kbps = atoi (argv[3]);
+      argc--, argv++;
+    }
+    else if (strcmp (argv[2], "--") == 0) doneWithSwitches = 1;
+    else fprintf (stderr, "Unknown option %s\n", argv[2]);
+  }
+  closesocket (sock);
+  return 0;
+}