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Make more fixes and improvements

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This change attempts to fix some report build issues. It also builds
upon development work described in previous changes.
This commit is contained in:
Justine Tunney 2022-04-21 09:15:36 -07:00
parent 9bfa6ec06e
commit 9d61e23c80
27 changed files with 980 additions and 902 deletions
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149
tool/net/echo.c Normal file
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/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2020 Justine Alexandra Roberts Tunney │
│ │
│ Permission to use, copy, modify, and/or distribute this software for │
│ any purpose with or without fee is hereby granted, provided that the │
│ above copyright notice and this permission notice appear in all copies. │
│ │
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/calls/calls.h"
#include "libc/fmt/conv.h"
#include "libc/intrin/kprintf.h"
#include "libc/log/check.h"
#include "libc/rand/rand.h"
#include "libc/runtime/runtime.h"
#include "libc/sock/sock.h"
#include "libc/sysv/consts/af.h"
#include "libc/sysv/consts/ipproto.h"
#include "libc/sysv/consts/sock.h"
#include "net/http/http.h"
/**
* @fileoverview tcp/udp echo servers/clients
* use it to fill your network with junk data
*/
int sock;
char buf[1000];
struct sockaddr_in addr = {0};
uint32_t addrsize = sizeof(struct sockaddr_in);
void PrintUsage(char **argv) {
kprintf("usage: %s udp server [ip port]%n", argv[0]);
kprintf(" %s tcp server [ip port]%n", argv[0]);
kprintf(" %s udp client [ip port]%n", argv[0]);
kprintf(" %s tcp client [ip port]%n", argv[0]);
exit(1);
}
void UdpServer(void) {
ssize_t rc;
struct sockaddr_in addr2;
uint32_t addrsize2 = sizeof(struct sockaddr_in);
CHECK_NE(-1, (sock = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP)));
CHECK_NE(-1, bind(sock, &addr, addrsize));
CHECK_NE(-1, getsockname(sock, &addr2, &addrsize2));
kprintf("udp server %hhu.%hhu.%hhu.%hhu %hu%n", addr2.sin_addr.s_addr >> 24,
addr2.sin_addr.s_addr >> 16, addr2.sin_addr.s_addr >> 8,
addr2.sin_addr.s_addr, addr2.sin_port);
for (;;) {
CHECK_NE(-1,
(rc = recvfrom(sock, buf, sizeof(buf), 0, &addr2, &addrsize2)));
CHECK_NE(-1, sendto(sock, buf, rc, 0, &addr2, addrsize2));
}
}
void UdpClient(void) {
CHECK_NE(-1, (sock = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP)));
CHECK_NE(-1, connect(sock, &addr, addrsize));
for (;;) {
rngset(buf, sizeof(buf), rand64, -1);
CHECK_NE(-1, write(sock, &addr, addrsize));
}
}
void TcpServer(void) {
int client;
ssize_t rc;
struct sockaddr_in addr2;
uint32_t addrsize2 = sizeof(struct sockaddr_in);
CHECK_NE(-1, (sock = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP)));
CHECK_NE(-1, bind(sock, &addr, addrsize));
CHECK_NE(-1, listen(sock, 10));
CHECK_NE(-1, getsockname(sock, &addr2, &addrsize2));
kprintf("tcp server %hhu.%hhu.%hhu.%hhu %hu%n", addr2.sin_addr.s_addr >> 24,
addr2.sin_addr.s_addr >> 16, addr2.sin_addr.s_addr >> 8,
addr2.sin_addr.s_addr, addr2.sin_port);
for (;;) {
addrsize2 = sizeof(struct sockaddr_in);
CHECK_NE(-1, (client = accept(sock, &addr2, &addrsize2)));
kprintf("got client %hhu.%hhu.%hhu.%hhu %hu%n", addr2.sin_addr.s_addr >> 24,
addr2.sin_addr.s_addr >> 16, addr2.sin_addr.s_addr >> 8,
addr2.sin_addr.s_addr, addr2.sin_port);
for (;;) {
CHECK_NE(-1, (rc = read(client, buf, sizeof(buf))));
if (!rc) break;
CHECK_NE(-1, write(client, buf, rc));
}
}
}
void TcpClient(void) {
CHECK_NE(-1, (sock = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP)));
CHECK_NE(-1, connect(sock, &addr, addrsize));
for (;;) {
rngset(buf, sizeof(buf), rand64, -1);
CHECK_NE(-1, write(sock, buf, sizeof(buf)));
CHECK_NE(-1, read(sock, buf, sizeof(buf)));
}
}
int main(int argc, char *argv[]) {
int port = 0;
int64_t ip = 0;
if (argc < 3) PrintUsage(argv);
if (argc >= 4) {
if ((ip = ParseIp(argv[3], -1)) == -1) {
PrintUsage(argv);
}
}
if (argc >= 5) {
port = atoi(argv[4]);
if (port & 0xffff0000) {
PrintUsage(argv);
}
}
addr.sin_family = AF_INET;
addr.sin_port = htons(port);
addr.sin_addr.s_addr = htonl(ip);
if (!strcmp(argv[1], "udp")) {
if (!strcmp(argv[2], "server")) {
UdpServer();
} else if (!strcmp(argv[2], "client")) {
UdpClient();
} else {
PrintUsage(argv);
}
} else if (!strcmp(argv[1], "tcp")) {
if (!strcmp(argv[2], "server")) {
TcpServer();
} else if (!strcmp(argv[2], "client")) {
TcpClient();
} else {
PrintUsage(argv);
}
} else {
PrintUsage(argv);
}
return 0;
}