mirror of https://github.com/dirtbags/moth.git
91 lines
1.7 KiB
C
91 lines
1.7 KiB
C
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#include <stdio.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include <netdb.h>
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#include <string.h>
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int
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open_connection(char *host, int port)
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{
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struct sockaddr_in addr;
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struct hostent *h;
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int fd;
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if (! inet_aton(host, &(addr.sin_addr))) {
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if (!(h = gethostbyname(host))) {
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return -1;
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} else {
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memcpy(&(addr.sin_addr), h->h_addr, h->h_length);
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}
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}
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fd = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP);
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if (fd == -1) {
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return -1;
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}
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addr.sin_family = AF_INET;
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addr.sin_port = htons(port);
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if (connect(fd, (struct sockaddr *)&addr, sizeof(addr))) {
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close(fd);
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return -1;
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}
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return fd;
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}
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void
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clean(char *s)
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{
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for (; *s; s++) {
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switch (*s) {
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case '/':
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case '.':
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*s = '_';
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}
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}
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}
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int
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main(int argc, char *argv[])
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{
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int fd;
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char s[4096];
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ssize_t len;
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if (4 != argc) {
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printf("Usage: %s HOST NOTE COMMAND\n", argv[0]);
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printf("\n");
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printf(" COMMAND must be 'r' (read) or 'w' (write).\n");
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printf(" For w, input is taken from stdin.\n");
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return 1;
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}
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fd = open_connection(argv[1], 4000);
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clean(argv[2]);
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switch (argv[3][0]) {
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case 'r':
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write(fd, "r", 1);
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write(fd, argv[2], strlen(argv[2]));
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write(fd, "\n", 1);
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do {
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len = read(fd, s, sizeof(s));
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write(1, s, len);
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} while (len);
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break;
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case 'w':
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write(fd, "w", 1);
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write(fd, argv[2], strlen(argv[2]));
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write(fd, "\n", 1);
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do {
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len = read(0, s, sizeof(s));
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write(fd, s, len);
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} while (len);
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break;
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default:
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printf("I don't understand that command.\n");
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break;
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}
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return 0;
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}
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