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Diffstat (limited to 'client/nft.c')
-rw-r--r--client/nft.c415
1 files changed, 0 insertions, 415 deletions
diff --git a/client/nft.c b/client/nft.c
deleted file mode 100644
index 9d03295..0000000
--- a/client/nft.c
+++ /dev/null
@@ -1,415 +0,0 @@
-/* Next File Transfer Client
- Copyright (C) 2020 Ian Cowburn
-
- This program is free software: you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation, either version 3 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program. If not, see <http://www.gnu.org/licenses/>.
-
-*/
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <errno.h>
-
-#include <unistd.h>
-#include <fcntl.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <netinet/tcp.h>
-#include <netdb.h>
-
-static const char *name;
-
-
-static void *Malloc(size_t len)
-{
- void *p;
-
- p = malloc(len);
-
- if (!p)
- {
- perror(name);
- exit(EXIT_FAILURE);
- }
-
- return p;
-}
-
-
-static char *GetLine(char *buff, size_t len)
-{
- size_t l;
-
- if (feof(stdin))
- {
- return NULL;
- }
-
- printf("NFT> ");
-
- if (!fgets(buff, len, stdin))
- {
- return NULL;
- }
-
- l = strlen(buff);
-
- if (l > 0 && buff[l-1]=='\n')
- {
- buff[l-1]=0;
- }
-
- if (l)
- {
- return buff;
- }
- else
- {
- return GetLine(buff, len);
- }
-}
-
-
-static int Connect(const char *n, int p)
-{
- struct hostent *remote;
- struct sockaddr_in addr;
- int sock;
-
- if (!(remote = gethostbyname(n)))
- {
- fprintf(stderr,"%s: unknown host %s\n",name,n);
- exit(EXIT_FAILURE);
- }
-
- memcpy(&addr.sin_addr, remote->h_addr, remote->h_length);
-
- if ((sock = socket(AF_INET, SOCK_STREAM, 0))==-1)
- {
- perror(name);
- exit(EXIT_FAILURE);
- }
-
- addr.sin_family = AF_INET;
- addr.sin_port = htons(p);
-
- if (connect(sock,(void*)&addr,sizeof(addr)) == -1)
- {
- perror(name);
- exit(EXIT_FAILURE);
- }
-
- return sock;
-}
-
-
-static int Read(int sock, char *buff, size_t len)
-{
- while(len > 0)
- {
- size_t rd;
-
- rd = read(sock, buff, len);
-
- if (rd == -1)
- {
- perror(name);
- return 0;
- }
- else if (rd == 0)
- {
- return 0;
- }
- else
- {
- len -= rd;
- buff += rd;
- }
- }
-
- return 1;
-}
-
-
-static int Write(int sock, const char *buff, size_t len)
-{
- while(len > 0)
- {
- size_t wr;
-
- wr = write(sock, buff, len);
-
- if (wr == -1)
- {
- perror(name);
- return 0;
- }
- else if (wr == 0)
- {
- return 0;
- }
- else
- {
- len -= wr;
- buff += wr;
- }
- }
-
- return 1;
-}
-
-
-static int WriteBlock(int sock, const char *block, size_t len)
-{
- char buff[32];
-
- if (len > 99999)
- {
- fprintf(stderr, "%s: length of block %zu too large\n", name, len);
- return 0;
- }
-
- snprintf(buff, sizeof buff, "%.5zu", len);
-
- if (!Write(sock, buff, 5))
- {
- return 0;
- }
-
- if (!Write(sock, block, len))
- {
- return 0;
- }
-
- return 1;
-}
-
-
-static size_t ReadSize(int sock)
-{
- char buff[32];
-
- if (!Read(sock, buff, 5))
- {
- return 0;
- }
-
- return atoi(buff);
-}
-
-
-static size_t FileSize(const char *path)
-{
- struct stat st;
-
- if (stat(path, &st) == 0)
- {
- return st.st_size;
- }
- else
- {
- return 0;
- }
-}
-
-
-static int Put(int sock, const char *path)
-{
- int quit = 0;
- char status[3] = {0};
- size_t len;
- int fd;
-
- if ((len = FileSize(path)) == 0)
- {
- perror(path);
- }
- else
- {
- char *buff;
- int fd;
-
- buff = Malloc(len);
-
- fd = open(path, O_RDONLY);
- read(fd, buff, len);
- close(fd);
-
- if (!Write(sock, "PF", 2))
- {
- quit = 1;
- }
-
- if (!quit && !WriteBlock(sock, path, strlen(path)))
- {
- quit = 1;
- }
-
- if (!quit && !WriteBlock(sock, buff, len))
- {
- quit = 1;
- }
-
- if (!quit && Read(sock, status, 2))
- {
- if (strcmp(status, "!E") == 0)
- {
- printf("Command failed\n");
- }
- }
- else
- {
- quit = 1;
- }
-
- }
-
- return quit;
-}
-
-
-static int Get(int sock, const char *path)
-{
- int quit = 0;
- char status[3] = {0};
- int fd;
-
- if ((fd = open(path, O_WRONLY|O_CREAT|O_TRUNC)) == -1)
- {
- perror(path);
- return 0;
- }
-
- if (!Write(sock, "GF", 2))
- {
- quit = 1;
- }
-
- if (!quit && !WriteBlock(sock, path, strlen(path)))
- {
- quit = 1;
- }
-
- if (!quit && Read(sock, status, 2))
- {
- if (strcmp(status, "!E") == 0)
- {
- printf("Command failed\n");
- }
- else
- {
- size_t len;
-
- if ((len = ReadSize(sock)) > 0)
- {
- char buff[100000];
-
- if (Read(sock, buff, len))
- {
- write(fd, buff, len);
- }
- else
- {
- quit = 1;
- }
- }
- }
- }
- else
- {
- quit = 1;
- }
-
- close(fd);
-
- return quit;
-}
-
-
-static int Cd(int sock, const char *path)
-{
- int quit = 0;
-
- return quit;
-}
-
-
-static int Mkdir(int sock, const char *path)
-{
- int quit = 0;
-
- return quit;
-}
-
-
-int main(int argc, char *argv[])
-{
- char buff[1024];
- int sock;
- int quit = 0;
-
- if ((name = strrchr(argv[0], '/')))
- {
- name++;
- }
- else
- {
- name = argv[0];
- }
-
- if (argc<3)
- {
- fprintf(stderr,"%s: usage %s host port\n",name,name);
- exit(EXIT_FAILURE);
- }
-
- sock = Connect(argv[1],atoi(argv[2]));
-
- while(!quit && GetLine(buff, sizeof buff))
- {
- char *tok;
-
- tok = strtok(buff, " \t");
-
- if (strcmp(tok, "exit") == 0)
- {
- break;
- }
- else if (strcmp(tok, "put") == 0)
- {
- quit = Put(sock, strtok(NULL, " \t"));
- }
- else if (strcmp(tok, "get") == 0)
- {
- quit = Get(sock, strtok(NULL, " \t"));
- }
- else if (strcmp(tok, "cd") == 0)
- {
- quit = Cd(sock, strtok(NULL, " \t"));
- }
- else if (strcmp(tok, "mkdir") == 0)
- {
- quit = Mkdir(sock, strtok(NULL, " \t"));
- }
- else
- {
- printf("Unrecognised command '%s'\n", tok);
- }
- }
-
- close(sock);
-
- return EXIT_SUCCESS;
-}
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