fumiama/simple-dict
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update README

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fumiama
2021-12-12 15:05:14 +08:00
parent 53f46ac1d3
commit 8e9cb10297
3 changed files with 135 additions and 24 deletions
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26
client.c
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@@ -33,7 +33,7 @@ void getMessage(void *p) {
int c = 0, offset = 0;
CMDPACKET* cp = (CMDPACKET*)bufr;
while(offset >= CMDPACKET_HEAD_LEN || (c = recv(sockfd, bufr+offset, CMDPACKET_HEAD_LEN-offset, MSG_WAITALL)) > 0) {
printf("Recv %d bytes.\n", c);
//printf("Recv %d bytes.\n", c);
if(recv_bin) {
if(~recv_bin) {
recv_bin = -1;
@@ -48,12 +48,12 @@ void getMessage(void *p) {
bufr[i] = 0;
off_t datalen;
sscanf(bufr, "%d", &datalen);
printf("raw data len: %d\n", datalen);
//printf("raw data len: %d\n", datalen);
char* data = malloc(datalen);
offset = c - ++i;
if(offset > 0) {
memcpy(data, bufr+i, offset);
printf("copy %d bytes data that had been received.\n", offset);
//printf("copy %d bytes data that had been received.\n", offset);
}
else offset = 0;
if(datalen-offset == recv(sockfd, data+offset, datalen-offset, MSG_WAITALL)) {
@@ -75,22 +75,22 @@ void getMessage(void *p) {
}
} else {
offset += c;
printf("[handle] Get %zd bytes, total: %zd.\n", c, offset);
//printf("[handle] Get %zd bytes, total: %zd.\n", c, offset);
if(offset < CMDPACKET_HEAD_LEN) break;
if(offset < CMDPACKET_HEAD_LEN+cp->datalen) {
c = recv(sockfd, bufr+offset, CMDPACKET_HEAD_LEN+cp->datalen-offset, MSG_WAITALL);
if(c <= 0) break;
else {
offset += c;
printf("[handle] Get %zd bytes, total: %zd.\n", c, offset);
//printf("[handle] Get %zd bytes, total: %zd.\n", c, offset);
}
}
c = CMDPACKET_HEAD_LEN+cp->datalen; // 暂存 packet len
if(offset < c) break;
printf("[handle] Decrypt %zd bytes data...\n", cp->datalen);
//printf("[handle] Decrypt %zd bytes data...\n", cp->datalen);
if(cmdpacket_decrypt(cp, 0, pwd)) {
cp->data[cp->datalen] = 0;
printf("[normal] Get %u bytes packet with data: %s\n", offset, cp->data);
//printf("[normal] Get %u bytes packet with data: %s\n", offset, cp->data);
switch(cp->cmd) {
case CMDACK:
printf("recv ack: %s\n", cp->data);
@@ -103,7 +103,7 @@ void getMessage(void *p) {
memmove(bufr, bufr+c, offset);
c = 0;
} else offset = 0;
printf("offset after analyzing packet: %zd\n", offset);
//printf("offset after analyzing packet: %zd\n", offset);
}
}
}
@@ -115,11 +115,11 @@ off_t file_size_of(const char* fname) {
}
void send_cmd(int accept_fd, CMDPACKET* p) {
printf("send %d bytes encrypted data with %d bytes head.\n", p->datalen, CMDPACKET_HEAD_LEN);
printf("raw packet: ");
for(int i = 0; i < CMDPACKET_HEAD_LEN+p->datalen; i++) printf("%02x", ((uint8_t*)p)[i]);
putchar('\n');
if(!~send(accept_fd, (void*)p, CMDPACKET_HEAD_LEN+p->datalen, 0)) puts("Send data error");
//printf("send %d bytes encrypted data with %d bytes head.\n", p->datalen, CMDPACKET_HEAD_LEN);
//printf("raw packet: ");
//for(int i = 0; i < CMDPACKET_HEAD_LEN+p->datalen; i++) printf("%02x", ((uint8_t*)p)[i]);
//putchar('\n');
if(!~send(accept_fd, (void*)p, CMDPACKET_HEAD_LEN+p->datalen, 0)) puts("Send data error.");
else puts("Send data succeed.");
}