fixed
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parent
42c2279ec5
commit
784164ec7b
122
plainbin.c
122
plainbin.c
@ -20,18 +20,31 @@
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#define MSG4 "No namespace available.\n"
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#ifndef VERSION
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#define VERSION "1.2"
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#define VERSION "1.2.1"
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#endif
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size_t max_clients = 15;
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size_t max_size = 1;
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size_t buf_size = 32000;
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size_t name_len = 15;
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typedef struct {
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/* Clients on thread */
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size_t max_clients;
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char *dir = ".";
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char *prog_name;
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char *motd;
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/* Max file size */
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size_t max_size;
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/* Buffer size for thread */
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size_t buf_size;
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/* Max filename lenght */
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size_t name_len;
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/* Directory for files */
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char *dir;
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/* Message of the day */
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char *motd;
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} CFG;
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CFG cfg = {.max_clients = 15, .max_size = 1, .buf_size = 32000, .name_len = 15, .dir = "."};
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/* Server sockets */
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int ifd;
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size_t ifd_clients;
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@ -85,14 +98,14 @@ NS_ERROR:
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char *rand_string(void) {
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char abc[] = "asdfghjklzxcvbnmqwertyuiopQWERTYUIOPASDFGHJKLZXCVBNM1234567890";
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char *res = malloc(name_len + 1);
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char *res = malloc(cfg.name_len + 1);
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if (res == NULL)
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return NULL;
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for (size_t i = 0; i < name_len; i++)
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for (size_t i = 0; i < cfg.name_len; i++)
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res[i] = abc[rand() % (sizeof(abc) - 1)];
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res[name_len] = '\0';
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res[cfg.name_len] = '\0';
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return res;
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}
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@ -121,7 +134,7 @@ int send_str(int fd, char *str, ssize_t size, int flag) {
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else
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ret = write(fd, str, size);
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if (ret < 0 && (errno != EAGAIN || errno != EINTR))
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if (ret < 0 && !(errno == EAGAIN || errno == EINTR))
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return 1;
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else if (ret == 0)
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@ -135,7 +148,6 @@ int send_str(int fd, char *str, ssize_t size, int flag) {
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}
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void upload(int cfd, pid_t par) {
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int ret = -1;
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int ffd = -1;
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char *buf = NULL;
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@ -157,21 +169,21 @@ void upload(int cfd, pid_t par) {
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goto UPL_ERROR;
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/* Sending */
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buf = malloc(buf_size + 1);
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buf = malloc(cfg.buf_size + 1);
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if (buf == NULL)
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goto UPL_ERROR;
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size_t tbytes = 0;
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while (1) {
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ssize_t rbytes = recv(cfd, buf, buf_size, 0);
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if (rbytes < 0 && (errno != EAGAIN || errno != EINTR))
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ssize_t rbytes = recv(cfd, buf, cfg.buf_size, 0);
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if (rbytes < 0 && !(errno == EAGAIN || errno == EINTR))
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goto UPL_ERROR;
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else if (rbytes == 0)
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break;
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tbytes += (size_t)rbytes;
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if (tbytes / 1024 / 1024 >= max_size) {
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if (tbytes / 1024 / 1024 >= cfg.max_size) {
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send_str(cfd, MSG2, sizeof(MSG2), WRITE);
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break;
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}
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@ -180,8 +192,6 @@ void upload(int cfd, pid_t par) {
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goto UPL_ERROR;
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}
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ret = 0;
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/* Clear */
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UPL_ERROR:
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if (buf)
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@ -190,9 +200,6 @@ UPL_ERROR:
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if (ffd != -1)
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close(ffd);
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if (ret == -1)
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fprintf(stderr, "%s: input thread: %s: %s\n", prog_name, (filename) ? filename : "NULL", strerror(errno));
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if (filename)
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free(filename);
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@ -202,25 +209,20 @@ UPL_ERROR:
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}
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void load(int cfd, pid_t par) {
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int ret = -1;
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int ffd = -1;
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char *buf = NULL;
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/* For INFO cmd */
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name_len += 4;
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cfg.name_len += 4;
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/* Get filename */
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char *filename = malloc(name_len + 1);
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char *filename = malloc(cfg.name_len + 1);
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if (filename == NULL)
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goto LD_ERROR;
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ssize_t rbytes = recv(cfd, filename, name_len, 0);
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if (rbytes <= 0) {
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if (rbytes == 0)
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ret = 0;
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ssize_t rbytes = recv(cfd, filename, cfg.name_len, 0);
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if (rbytes <= 0)
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goto LD_ERROR;
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}
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filename[rbytes] = '\0';
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char *ptr = strchr(filename, '\n');
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@ -233,12 +235,11 @@ void load(int cfd, pid_t par) {
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/* INFO */
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if (!strcmp(filename, "INFO")) {
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char msg[336];
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int ret2 = snprintf(msg, sizeof(msg), "Max file size: %zuMB\nMax clients in thread: %zu\nBuffer size: %zu\nMOTD: %s\n", max_size, max_clients, buf_size, (motd) ? motd : "");
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int ret = snprintf(msg, sizeof(msg), "Max file size: %zuMB\nMax clients in thread: %zu\nBuffer size: %zu\nMOTD: %s\n", cfg.max_size, cfg.max_clients, cfg.buf_size, (cfg.motd) ? cfg.motd : "");
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if (send_str(cfd, msg, (ssize_t)ret2, SEND))
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if (send_str(cfd, msg, (ssize_t)ret, SEND))
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goto LD_ERROR;
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ret = 0;
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goto LD_ERROR;
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}
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@ -250,13 +251,13 @@ void load(int cfd, pid_t par) {
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}
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/* Sending */
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buf = malloc(buf_size + 1);
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buf = malloc(cfg.buf_size + 1);
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if (buf == NULL)
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goto LD_ERROR;
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while (1) {
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rbytes = read(ffd, buf, buf_size);
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if (rbytes < 0 && (errno != EAGAIN || errno != EINTR))
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rbytes = read(ffd, buf, cfg.buf_size);
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if (rbytes < 0 && !(errno == EAGAIN || errno == EINTR))
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goto LD_ERROR;
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else if (rbytes == 0)
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@ -266,8 +267,6 @@ void load(int cfd, pid_t par) {
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goto LD_ERROR;
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}
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ret = 0;
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/* Clear */
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LD_ERROR:
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if (buf)
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@ -276,9 +275,6 @@ LD_ERROR:
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if (ffd != -1)
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close(ffd);
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if (ret == -1)
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fprintf(stderr, "%s: output thread: %s: %s\n", prog_name, (filename) ? filename : "NULL", strerror(errno));
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if (filename)
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free(filename);
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@ -318,7 +314,7 @@ void Proc(int fd, int flag) {
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if (cfd < 0)
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continue;
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if (flag == INPUT && ifd_clients < max_clients) {
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if (flag == INPUT && ifd_clients < cfg.max_clients) {
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ifd_clients++;
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if (fork() == 0) {
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@ -327,7 +323,7 @@ void Proc(int fd, int flag) {
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}
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}
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else if (flag == OUTPUT && ofd_clients < max_clients) {
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else if (flag == OUTPUT && ofd_clients < cfg.max_clients) {
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ofd_clients++;
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if (fork() == 0) {
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@ -345,7 +341,6 @@ void Proc(int fd, int flag) {
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int main(int argc, char **argv) {
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srand(time(NULL));
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prog_name = argv[0];
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signal(SIGUSR1, sig_handler);
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signal(SIGUSR2, sig_handler);
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@ -356,9 +351,10 @@ int main(int argc, char **argv) {
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int backlog = 1;
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int iport = 8080;
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int oport = 8081;
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char daemon_flag = 0;
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int opt;
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while ((opt = getopt(argc, argv, "i:o:m:d:s:n:b:t:l:V")) != -1) {
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while ((opt = getopt(argc, argv, "i:o:m:d:s:n:b:t:l:DV")) != -1) {
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switch (opt) {
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case 'i':
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iport = atoi(optarg);
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@ -369,62 +365,72 @@ int main(int argc, char **argv) {
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break;
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case 'm':
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sscanf(optarg, "%zu", &max_clients);
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sscanf(optarg, "%zu", &cfg.max_clients);
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break;
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case 'd':
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dir = optarg;
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cfg.dir = optarg;
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break;
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case 's':
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sscanf(optarg, "%zu", &max_size);
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sscanf(optarg, "%zu", &cfg.max_size);
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break;
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case 'n':
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sscanf(optarg, "%zu", &name_len);
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sscanf(optarg, "%zu", &cfg.name_len);
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break;
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case 'b':
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sscanf(optarg, "%zu", &buf_size);
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sscanf(optarg, "%zu", &cfg.buf_size);
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break;
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case 't':
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if (strlen(optarg) > 256) {
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fprintf(stderr, "%s: MOTD very long\n", prog_name);
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fprintf(stderr, "%s: MOTD very long\n", argv[0]);
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return 1;
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}
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motd = optarg;
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cfg.motd = optarg;
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break;
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case 'l':
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backlog = atoi(optarg);
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break;
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case 'D':
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daemon_flag = 1;
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break;
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case 'V':
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puts("Version: " VERSION "\nWritten under WTFPL License.");
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return 0;
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default:
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printf("%s [iomdsnbtlV] - Simple file sharing server\n\t-i NUM Input port\tdefault: %d\n\t-o NUM Output port\tdefault: %d\n\t-m NUM Max clients\tdefault: %zu\n\t-d STR Working dir\tdefault: %s\n\t-s NUM Max file size\tdefault: %zuMB\n\t-n NUM Filename length\tdefault: %zu\n\t-b NUM Buffer size\tdefault: %zuB\n\t-t STR Set MOTD\n\t-l listen() backlog\tdefault: %d\n\t-V Print version and license\n", prog_name, iport, oport, max_clients, dir, max_size, name_len, buf_size, backlog);
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printf("%s [iomdsnbtlDV] - Simple file sharing server\n\t-i NUM Input port\tdefault: %d\n\t-o NUM Output port\tdefault: %d\n\t-m NUM Max clients\tdefault: %zu\n\t-d STR Working dir\tdefault: %s\n\t-s NUM Max file size\tdefault: %zuMB\n\t-n NUM Filename length\tdefault: %zu\n\t-b NUM Buffer size\tdefault: %zuB\n\t-t STR Set MOTD\n\t-l listen() backlog\tdefault: %d\n\t-D Run as daemon\n\t-V Print version and license\n", argv[0], iport, oport, cfg.max_clients, cfg.dir, cfg.max_size, cfg.name_len, cfg.buf_size, backlog);
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return 0;
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}
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}
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if (chdir(dir) < 0) {
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fprintf(stderr, "%s: chdir: %s\n", prog_name, strerror(errno));
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if (daemon_flag)
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if (daemon(1, 1) < 0) {
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fprintf(stderr, "%s: daemon: %s\n", argv[0], strerror(errno));
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return 1;
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}
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if (chdir(cfg.dir) < 0) {
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fprintf(stderr, "%s: chdir: %s\n", argv[0], strerror(errno));
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return 1;
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}
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ifd = new_server(iport, backlog);
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if (ifd == -1) {
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fprintf(stderr, "%s: new_server: input socket: %s\n", prog_name, strerror(errno));
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fprintf(stderr, "%s: new_server: input socket: %s\n", argv[0], strerror(errno));
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return 1;
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}
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ofd = new_server(oport, backlog);
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if (ofd == -1) {
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fprintf(stderr, "%s: new_server: output socket: %s\n", prog_name, strerror(errno));
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fprintf(stderr, "%s: new_server: output socket: %s\n", argv[0], strerror(errno));
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return 1;
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}
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