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mirror of https://github.com/fumiama/simple-dict.git synced 2026-06-22 20:21:04 +08:00

引入全新dict格式

This commit is contained in:
fumiama
2021-05-19 00:42:35 +08:00
parent be2009bbb2
commit 0586721dcf
9 changed files with 314 additions and 203 deletions

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@@ -1,13 +1,19 @@
cmake_minimum_required(VERSION 3.0.0)
project(simple-dict-server) project(simple-dict-server)
add_executable(simple-dict-server server.c) # 生成可执行文件
add_executable(simple-dict-client client.c) # 生成可执行文件
target_link_libraries( # 目标库
simple-dict-server
# 目标库需要链接的库 add_definitions(-DLISTEN_ON_IPV6)
pthread)
target_link_libraries( # 目标库
simple-dict-client
# 目标库需要链接的库 include_directories("/usr/local/include")
pthread) link_directories("/usr/local/lib")
add_library(dict STATIC dict.c)
add_executable(simple-dict-server server.c)
add_executable(simple-dict-client client.c)
add_executable(migrate migrate.c)
add_executable(cfgwriter cfgwriter.c)
target_link_libraries(simple-dict-server dict spb pthread)
target_link_libraries(simple-dict-client pthread)
target_link_libraries(migrate spb)
target_link_libraries(cfgwriter spb)

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@@ -26,66 +26,15 @@ make
Start server on localhost using the commands below. Start server on localhost using the commands below.
```bash ```bash
chmod +x simple-dict-server simple-dict-client chmod +x simple-dict-server simple-dict-client
./simple-dict-server -d 7777 1 ./dict.bin # use -d to start as daemon ./simple-dict-server -d 7777 1 ./dict.sp ./cfg.sp # use -d to start as daemon
``` ```
Open another shell to connect to it. Open another shell to connect to it.
```bash ```bash
./simple-dict-client 127.0.0.1 7777 ./simple-dict-client 127.0.0.1 7777
``` ```
Now you have connected to the server. Type `fumiama` and press enter in `10` seconds to get the read/write access. You can modify the password in source code as you like. Please note that the server will only wait `10` seconds for a response after the last communication. The box below shows how to control the server to accompilsh basic add/del/find/edit operations. Now you have connected to the server. Type `fumiama` and press enter in `10` seconds to get the read/write access. You can modify the password in source code as you like. Please note that the server will only wait `10` seconds for a response after the last communication. The box below shows how to control the server to accompilsh basic add/del/find/edit operations.
```c
break!
Get sockfd
Connected to server
Welcome to simple dict server.
Thread create succeeded
Enter command:fumiama
Enter command:set #set a key-value pair
Recv 3 bytes: set
Enter command:test #key
Recv 4 bytes: data
Enter command:测试 #value
Recv 4 bytes: succ
Enter command:get #get a value using key
Recv 3 bytes: get
Enter command:test
Recv 6 bytes: 测试
Enter command:del #delete a key
Recv 3 bytes: del
Enter command:test
Recv 4 bytes: succ
Enter command:get
Recv 3 bytes: get
Enter command:test
Recv 4 bytes: null
Enter command:set
Recv 3 bytes: set
Enter command:test
Recv 4 bytes: data
Enter command:测试
Recv 4 bytes: succ
Enter command:lst #list all keys that match the pattern
Recv 3 bytes: lst
Enter command:t #pattern
Recv 5 bytes: test
Enter command:quit The raw data starts with an integer showing its size, then a char `$` follows, finally following all binary data in `./dict.sp`.
Enter command:^C
```
You can also use `cat` command to get the raw data directly.
```c
break!
Get sockfd
Connected to server
Welcome to simple dict server.
Thread create succeeded
Enter command:fumiama
Enter command:cat
Recv 131 bytes: 128test测试
Enter command:quit
Enter command:^C
```
The raw data starts with an integer showing its size, following all binary data in `./dict.bin`.
# Android Client for simple-dict-server # Android Client for simple-dict-server
There is also an [Android Client](https://github.com/fumiama/simple-dict-android) for simple-dict-server. Just install the apk file downloaded from release page and click `config` icon to set your server address using the format There is also an [Android Client](https://github.com/fumiama/simple-dict-android) for simple-dict-server. Just install the apk file downloaded from release page and click `config` icon to set your server address using the format

29
cfgwriter.c Normal file
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@@ -0,0 +1,29 @@
#include <stdio.h>
#include <string.h>
#include <simple_protobuf.h>
#include "config.h"
CONFIG cfg;
int main() {
printf("Enter a password: ");
scanf("%s", cfg.pwd);
printf("Enter a set password: ");
scanf("%s", cfg.sps);
uint32_t* types_len = align_struct(sizeof(CONFIG), 2, cfg.pwd, cfg.sps);
FILE* fp = fopen("cfg.sp", "wb");
if(fp) {
set_pb(fp, types_len, sizeof(CONFIG), &cfg);
fclose(fp);
puts("Config is saved to cfg.sp.");
fp = NULL;
puts("Check config...");
fp = fopen("cfg.sp", "rb");
if(fp) {
SIMPLE_PB* spb = get_pb(fp);
memset(&cfg, 0, sizeof(CONFIG));
memcpy(&cfg, spb->target, sizeof(CONFIG));
printf("set pwd: %s, sps: %s\n", cfg.pwd, cfg.sps);
} else perror("[SPB]");
} else perror("[SPB]");
}

10
config.h Normal file
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@@ -0,0 +1,10 @@
#ifndef _CONFIG_H_
#define _CONFIG_H_
struct CONFIG {
char pwd[64]; //password
char sps[64]; //set password
};
typedef struct CONFIG CONFIG;
#endif

50
dict.c Normal file
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@@ -0,0 +1,50 @@
#include <stdio.h>
#include <sys/stat.h>
#include "dict.h"
static FILE *fp = NULL;
static int lock = 0;
static char* filepath;
uint32_t last_nonnull(char* p, uint32_t max_size) {
if(max_size > 1) while(!p[max_size - 1]) max_size--;
return max_size;
}
int init_dict(char* file_path) {
fp = fopen(file_path, "rb+");
if(fp) {
lock = LOCK_UN;
filepath = file_path;
return 1;
} else {
puts("Open dict error");
return 0;
}
}
FILE *open_dict(int lock_type) {
if(lock & LOCK_EX) return NULL;
else {
if(!fp) fp = fopen(filepath, "rb+");
if(fp) {
lock = lock_type;
rewind(fp);
return fp;
} else {
puts("Open dict error");
return NULL;
}
}
}
void close_dict() {
puts("Close dict");
lock = LOCK_UN;
}
off_t get_dict_size() {
struct stat statbuf;
if(stat(filepath, &statbuf)==0) return statbuf.st_size;
else return -1;
}

24
dict.h Normal file
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@@ -0,0 +1,24 @@
#ifndef _DICT_H_
#define _DICT_H_
#include <stdint.h>
#define ITEMSZ 64
struct DICT {
char key[ITEMSZ];
char data[ITEMSZ];
};
typedef struct DICT DICT;
#define DICTSZ sizeof(DICT)
#define LOCK_UN 0x00
#define LOCK_SH 0x01
#define LOCK_EX 0x02
uint32_t last_nonnull(char* p, uint32_t max_size);
int init_dict(char* file_path);
FILE *open_dict(int lock_type);
void close_dict();
off_t get_dict_size();
#endif

30
migrate.c Normal file
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@@ -0,0 +1,30 @@
#include <stdio.h>
#include <string.h>
#include <simple_protobuf.h>
#include "dict.h"
#include "old_dict.h"
DICTBLK dict;
DICT d;
int main(int argc, char** argv) {
if(argc == 3) {
uint32_t* items_len = align_struct(sizeof(DICT), 2, d.key, d.data);
FILE* old = fopen(argv[1], "rb");
FILE* new = fopen(argv[2], "wb");
if(old && new) {
while(fread(&dict, DICTBLKSZ, 1, old) > 0) {
uint8_t ks = dict.keysize;
dict.key[ks] = 0;
uint8_t ds = dict.datasize;
dict.data[ds] = 0;
memset(&d, 0, sizeof(DICT));
memcpy(d.key, dict.key, ks);
memcpy(d.data, dict.data, ds);
set_pb(new, items_len, sizeof(DICT), &d);
}
fclose(old);
fclose(new);
} else puts("Open file error.");
} else puts("Usage: <old_dict> <new_dict>");
}

15
old_dict.h Normal file
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@@ -0,0 +1,15 @@
#ifndef _OLD_DICT_H_
#define _OLD_DICT_H_
#include <stdint.h>
#define DATASIZE 64
struct DICTBLK{
char key[(DATASIZE-1)];
uint8_t keysize;
char data[(DATASIZE-1)];
uint8_t datasize;
};
typedef struct DICTBLK DICTBLK;
#define DICTBLKSZ sizeof(DICTBLK)
#endif

274
server.c
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@@ -1,8 +1,7 @@
#include <sys/types.h> #include <sys/types.h>
#include <sys/socket.h> #include <sys/socket.h>
#include <sys/stat.h>
#include <sys/signal.h> #include <sys/signal.h>
#include <sys/file.h>
#include <sys/wait.h> #include <sys/wait.h>
#include <netinet/in.h> #include <netinet/in.h>
#include <arpa/inet.h> #include <arpa/inet.h>
@@ -13,23 +12,26 @@
#include <unistd.h> #include <unistd.h>
#include <pthread.h> #include <pthread.h>
#include <time.h> #include <time.h>
#include <simple_protobuf.h>
#include "dict.h"
#include "config.h"
#if !__APPLE__ #if !__APPLE__
#include <sys/sendfile.h> #include <sys/sendfile.h>
#endif #endif
#define PASSWORD "fumiama" static int fd;
#define SETPASS "minamoto"
int fd; #ifdef LISTEN_ON_IPV6
//ssize_t numbytes; static socklen_t struct_len = sizeof(struct sockaddr_in6);
socklen_t struct_len = sizeof(struct sockaddr_in); static struct sockaddr_in6 server_addr;
struct sockaddr_in server_addr; #else
//char buff[BUFSIZ]; static socklen_t struct_len = sizeof(struct sockaddr_in);
char *file_path; static struct sockaddr_in server_addr;
#endif
#define THREADCNT 16 #define THREADCNT 16
pthread_t accept_threads[THREADCNT]; static pthread_t accept_threads[THREADCNT];
#define MAXWAITSEC 10 #define MAXWAITSEC 10
struct THREADTIMER { struct THREADTIMER {
@@ -44,33 +46,25 @@ struct THREADTIMER {
}; };
typedef struct THREADTIMER THREADTIMER; typedef struct THREADTIMER THREADTIMER;
#define DATASIZE 64 static DICT d;
struct DICTBLK{ static uint32_t* items_len;
char key[(DATASIZE-1)];
u_char keysize;
char data[(DATASIZE-1)];
u_char datasize;
};
typedef struct DICTBLK DICTBLK;
#define DICTBLKSZ sizeof(DICTBLK)
DICTBLK dict;
#define showUsage(program) printf("Usage: %s [-d] listen_port try_times dict_file\n\t-d: As daemon\n", program) static CONFIG* cfg;
static char *setpass, *delpass;
#define showUsage(program) printf("Usage: %s [-d] listen_port try_times dict_file config_file\n\t-d: As daemon\n", program)
void accept_client(); void accept_client();
void accept_timer(void *p); void accept_timer(void *p);
int bind_server(uint16_t port, u_int try_times); int bind_server(uint16_t port, u_int try_times);
int check_buffer(THREADTIMER *timer); int check_buffer(THREADTIMER *timer);
void close_dict(FILE *fp);
int close_and_send(THREADTIMER *timer, char *data, size_t numbytes); int close_and_send(THREADTIMER *timer, char *data, size_t numbytes);
off_t file_size_of(const char* fname);
int free_after_send(int accept_fd, char *data, size_t length); int free_after_send(int accept_fd, char *data, size_t length);
void handle_accept(void *accept_fd_p); void handle_accept(void *accept_fd_p);
void handle_pipe(int signo); void handle_pipe(int signo);
void handle_quit(int signo); void handle_quit(int signo);
void kill_thread(THREADTIMER* timer); void kill_thread(THREADTIMER* timer);
int listen_socket(u_int try_times); int listen_socket(u_int try_times);
FILE *open_dict(int lock_type);
int send_all(THREADTIMER *timer); int send_all(THREADTIMER *timer);
int send_data(int accept_fd, char *data, size_t length); int send_data(int accept_fd, char *data, size_t length);
int sm1_pwd(THREADTIMER *timer); int sm1_pwd(THREADTIMER *timer);
@@ -79,17 +73,22 @@ int s1_get(THREADTIMER *timer);
int s2_set(THREADTIMER *timer); int s2_set(THREADTIMER *timer);
int s3_set_data(THREADTIMER *timer); int s3_set_data(THREADTIMER *timer);
int s4_del(THREADTIMER *timer); int s4_del(THREADTIMER *timer);
int s5_list(THREADTIMER *timer);
int bind_server(uint16_t port, u_int try_times) { int bind_server(uint16_t port, u_int try_times) {
int fail_count = 0; int fail_count = 0;
int result = -1; int result = -1;
server_addr.sin_family = AF_INET; #ifdef LISTEN_ON_IPV6
server_addr.sin_port = htons(port); server_addr.sin6_family = AF_INET6;
server_addr.sin_addr.s_addr = INADDR_ANY; server_addr.sin6_port = htons(port);
bzero(&(server_addr.sin_zero), 8); bzero(&(server_addr.sin6_addr), sizeof(server_addr.sin6_addr));
fd = socket(PF_INET6, SOCK_STREAM, 0);
fd = socket(AF_INET, SOCK_STREAM, 0); #else
server_addr.sin_family = AF_INET;
server_addr.sin_port = htons(port);
server_addr.sin_addr.s_addr = INADDR_ANY;
bzero(&(server_addr.sin_zero), 8);
fd = socket(AF_INET, SOCK_STREAM, 0);
#endif
while(!~(result = bind(fd, (struct sockaddr *)&server_addr, struct_len)) && fail_count++ < try_times) sleep(1); while(!~(result = bind(fd, (struct sockaddr *)&server_addr, struct_len)) && fail_count++ < try_times) sleep(1);
if(!~result && fail_count >= try_times) { if(!~result && fail_count >= try_times) {
puts("Bind server failure!"); puts("Bind server failure!");
@@ -136,8 +135,8 @@ int send_all(THREADTIMER *timer) {
if(fp) { if(fp) {
timer->fp = fp; timer->fp = fp;
timer->is_open = 1; timer->is_open = 1;
off_t len = 0, file_size = file_size_of(file_path); off_t len = 0, file_size = get_dict_size();
sprintf(timer->data, "%zd", file_size); sprintf(timer->data, "%zd$", file_size);
printf("Get file size: %s bytes.\n", timer->data); printf("Get file size: %s bytes.\n", timer->data);
uint32_t head_len = strlen(timer->data); uint32_t head_len = strlen(timer->data);
#if __APPLE__ #if __APPLE__
@@ -155,48 +154,50 @@ int send_all(THREADTIMER *timer) {
re = sendfile(timer->accept_fd, fileno(fp), &len, file_size) >= 0; re = sendfile(timer->accept_fd, fileno(fp), &len, file_size) >= 0;
#endif #endif
printf("Send %lld bytes.\n", len); printf("Send %lld bytes.\n", len);
close_dict(fp); close_dict();
timer->is_open = 0; timer->is_open = 0;
} }
return re; return re;
} }
int sm1_pwd(THREADTIMER *timer) { int sm1_pwd(THREADTIMER *timer) {
if(!strcmp(PASSWORD, timer->data)) timer->status = 0; if(!strcmp(cfg->pwd, timer->data)) timer->status = 0;
return !timer->status; return !timer->status;
} }
int s0_init(THREADTIMER *timer) { int s0_init(THREADTIMER *timer) {
if(!strcmp("get", timer->data)) timer->status = 1; if(!strcmp("get", timer->data)) timer->status = 1;
else if(!strcmp("set" SETPASS, timer->data)) timer->status = 2; else if(!strcmp(setpass, timer->data)) timer->status = 2;
else if(!strcmp("del" SETPASS, timer->data)) timer->status = 4; else if(!strcmp(delpass, timer->data)) timer->status = 4;
else if(!strcmp("lst", timer->data)) timer->status = 5;
else if(!strcmp("cat", timer->data)) return send_all(timer); else if(!strcmp("cat", timer->data)) return send_all(timer);
else if(!strcmp("quit", timer->data)) return 0; else if(!strcmp("quit", timer->data)) return 0;
return send_data(timer->accept_fd, timer->data, timer->numbytes); return send_data(timer->accept_fd, timer->data, timer->numbytes);
} }
#define has_next(fp, ch) ((ch=getc(fp)),(feof(fp)?0:(ungetc(ch,fp),1)))
int s1_get(THREADTIMER *timer) { int s1_get(THREADTIMER *timer) {
FILE *fp = open_dict(LOCK_SH); FILE *fp = open_dict(LOCK_SH);
DICTBLK dict;
timer->status = 0; timer->status = 0;
if(fp) { if(fp) {
timer->fp = fp; timer->fp = fp;
timer->is_open = 1; timer->is_open = 1;
while(fread(&dict, DICTBLKSZ, 1, fp) > 0) { int ch;
u_char ks = dict.keysize; while(has_next(fp, ch)) {
dict.key[ks] = 0; SIMPLE_PB* spb = get_pb(fp);
//printf("[%s] Look key: (%d)%s\n", timer->data, ks, dict.key); DICT* d = (DICT*)spb->target;
if(!strcmp(timer->data, dict.key)) if(!strcmp(timer->data, d->key)) {
return close_and_send(timer, dict.data, dict.datasize); int r = close_and_send(timer, d->data, last_nonnull(d->data, ITEMSZ));
free(spb);
return r;
} else free(spb);
} }
} }
return close_and_send(timer, "null", 4); return close_and_send(timer, "null", 4);
} }
#define copyKey() {\ #define copy_key() {\
dict.keysize = (timer->numbytes >= (DATASIZE-1))?(DATASIZE-1):timer->numbytes;\ strncpy(d.key, timer->data, ITEMSZ-1);\
strncpy(dict.key, timer->data, (DATASIZE-1));\
} }
int s2_set(THREADTIMER *timer) { int s2_set(THREADTIMER *timer) {
@@ -205,17 +206,8 @@ int s2_set(THREADTIMER *timer) {
timer->status = 3; timer->status = 3;
timer->fp = fp; timer->fp = fp;
timer->is_open = 1; timer->is_open = 1;
while(fread(&dict, DICTBLKSZ, 1, fp) > 0) { memset(&d, 0, sizeof(DICT));
u_char ks = dict.keysize; copy_key();
dict.key[ks] = 0;
//printf("[%zd] Key size: %d\n", timer->numbytes, ks);
if(!dict.keysize || !strcmp(timer->data, dict.key)) {
copyKey();
fseek(fp, -DICTBLKSZ, SEEK_CUR);
return send_data(timer->accept_fd, "data", 4);
}
}
copyKey();
fseek(fp, 0, SEEK_END); fseek(fp, 0, SEEK_END);
return send_data(timer->accept_fd, "data", 4); return send_data(timer->accept_fd, "data", 4);
} else { } else {
@@ -226,75 +218,69 @@ int s2_set(THREADTIMER *timer) {
int s3_set_data(THREADTIMER *timer) { int s3_set_data(THREADTIMER *timer) {
timer->status = 0; timer->status = 0;
dict.datasize = (timer->numbytes >= (DATASIZE-1))?(DATASIZE-1):timer->numbytes; uint32_t datasize = (timer->numbytes > (ITEMSZ-1))?(ITEMSZ-1):timer->numbytes;
printf("Set data size: %d\n", dict.datasize); printf("Set data size: %u\n", datasize);
memcpy(dict.data, timer->data, dict.datasize); memcpy(d.data, timer->data, datasize);
puts("Data copy to dict succ"); puts("Data copy to dict succ");
if(fwrite(&dict, DICTBLKSZ, 1, timer->fp) != 1) { if(!set_pb(timer->fp, items_len, sizeof(DICT), &d)) {
printf("Error set data: dict[%s]=%s\n", dict.key, timer->data); printf("Error set data: dict[%s]=%s\n", d.key, timer->data);
return close_and_send(timer, "erro", 4); return close_and_send(timer, "erro", 4);
} else { } else {
printf("Set data: dict[%s]=%s\n", dict.key, timer->data); printf("Set data: dict[%s]=%s\n", d.key, timer->data);
return close_and_send(timer, "succ", 4); return close_and_send(timer, "succ", 4);
} }
} }
int s4_del(THREADTIMER *timer) { int s4_del(THREADTIMER *timer) {
FILE *fp = open_dict(LOCK_EX); FILE *fp = open_dict(LOCK_EX);
DICTBLK dict;
timer->status = 0; timer->status = 0;
if(fp) { if(fp) {
timer->fp = fp; timer->fp = fp;
timer->is_open = 1; timer->is_open = 1;
while(fread(&dict, DICTBLKSZ, 1, fp) > 0) { int ch;
dict.key[dict.keysize] = 0; while(has_next(fp, ch)) {
if(!strcmp(timer->data, dict.key)) { SIMPLE_PB* spb = get_pb(fp);
fseek(fp, -DICTBLKSZ+(DATASIZE-1), SEEK_CUR); DICT* d = (DICT*)spb->target;
fputc(0, fp); if(!strcmp(timer->data, d->key)) {
return close_and_send(timer, "succ", 4); uint32_t next = ftell(fp);
} uint32_t this = next - spb->real_len;
fseek(fp, 0, SEEK_END);
uint32_t end = ftell(fp);
if(next == end) {
if(!ftruncate(fileno(fp), end - spb->real_len)) {
free(spb);
return close_and_send(timer, "succ", 4);
} else {
free(spb);
return close_and_send(timer, "erro", 4);
}
} else {
uint32_t cap = end - next;
printf("this: %u, next: %u, end: %u, cap: %u\n", this, next, end, cap);
char* data = malloc(cap);
if(data) {
fseek(fp, next, SEEK_SET);
if(fread(data, cap, 1, fp) == 1) {
if(!ftruncate(fileno(fp), end - spb->real_len)) {
fseek(fp, this, SEEK_SET);
if(fwrite(data, cap, 1, fp) == 1) {
free(data);
free(spb);
return close_and_send(timer, "succ", 4);
}
}
}
free(data);
}
free(spb);
return close_and_send(timer, "erro", 4);
}
} else free(spb);
} }
} }
return close_and_send(timer, "null", 4); return close_and_send(timer, "null", 4);
} }
off_t file_size_of(const char* fname) {
struct stat statbuf;
if(stat(fname, &statbuf)==0) return statbuf.st_size;
else return -1;
}
int s5_list(THREADTIMER *timer) {
timer->status = 0;
off_t size = file_size_of(file_path) / DICTBLKSZ;
char *keys = calloc(size, DATASIZE);
DICTBLK dict;
FILE *fp = open_dict(LOCK_SH);
if(keys && fp) {
timer->fp = fp;
timer->is_open = 1;
keys[0] = 0;
while(fread(&dict, DICTBLKSZ, 1, fp) > 0) {
u_char ks = dict.keysize;
dict.key[ks] = 0;
//printf("[%s] Look key: (%d)%s\n", timer->data, ks, dict.key);
if(strstr(dict.key, timer->data)) {
strcat(keys, dict.key);
strcat(keys, "\n");
}
}
int len = strlen(keys);
close_dict(fp);
timer->is_open = 0;
if(len > 0) return free_after_send(timer->accept_fd, keys, len);
else return send_data(timer->accept_fd, "null", 4);
} else {
if(fp) close_dict(fp);
timer->is_open = 0;
return send_data(timer->accept_fd, "erro", 4);
}
}
int check_buffer(THREADTIMER *timer) { int check_buffer(THREADTIMER *timer) {
printf("Status: %d\n", timer->status); printf("Status: %d\n", timer->status);
switch(timer->status) { switch(timer->status) {
@@ -304,7 +290,6 @@ int check_buffer(THREADTIMER *timer) {
case 2: return s2_set(timer); break; case 2: return s2_set(timer); break;
case 3: return s3_set_data(timer); break; case 3: return s3_set_data(timer); break;
case 4: return s4_del(timer); break; case 4: return s4_del(timer); break;
case 5: return s5_list(timer); break;
default: return -1; break; default: return -1; break;
} }
} }
@@ -350,7 +335,7 @@ void kill_thread(THREADTIMER* timer) {
puts("Free data."); puts("Free data.");
} }
if(timer->is_open) { if(timer->is_open) {
close_dict(timer->fp); close_dict();
timer->is_open = 0; timer->is_open = 0;
puts("Close file."); puts("Close file.");
} }
@@ -361,6 +346,21 @@ void handle_pipe(int signo) {
printf("Pipe error: %d\n", signo); printf("Pipe error: %d\n", signo);
} }
#define chkbuf(p) if(!check_buffer(timer_pointer_of(p))) break
#define take_word(p, w) if(timer_pointer_of(p)->numbytes > strlen(w) && strstr(buff, w) == buff) {\
int l = strlen(w);\
char store = buff[l];\
buff[l] = 0;\
ssize_t n = timer_pointer_of(p)->numbytes - l;\
timer_pointer_of(p)->numbytes = l;\
chkbuf(p);\
buff[0] = store;\
memmove(buff + 1, buff + l + 1, n - 1);\
buff[n] = 0;\
timer_pointer_of(p)->numbytes = n;\
printf("Split cmd: %s\n", w);\
}
void handle_accept(void *p) { void handle_accept(void *p) {
pthread_detach(pthread_self()); pthread_detach(pthread_self());
int accept_fd = timer_pointer_of(p)->accept_fd; int accept_fd = timer_pointer_of(p)->accept_fd;
@@ -381,7 +381,11 @@ void handle_accept(void *p) {
buff[timer_pointer_of(p)->numbytes] = 0; buff[timer_pointer_of(p)->numbytes] = 0;
printf("Get %zd bytes: %s\n", timer_pointer_of(p)->numbytes, buff); printf("Get %zd bytes: %s\n", timer_pointer_of(p)->numbytes, buff);
puts("Check buffer"); puts("Check buffer");
if(!check_buffer(timer_pointer_of(p))) break; take_word(p, cfg->pwd);
take_word(p, "cat");
take_word(p, setpass);
take_word(p, delpass);
if(timer_pointer_of(p)->numbytes > 0) chkbuf(p);
} }
printf("Break: recv %zd bytes\n", timer_pointer_of(p)->numbytes); printf("Break: recv %zd bytes\n", timer_pointer_of(p)->numbytes);
} else puts("Error allocating buffer"); } else puts("Error allocating buffer");
@@ -425,35 +429,16 @@ void accept_client() {
} }
} }
FILE *open_dict(int lock_type) {
FILE *fp = NULL;
fp = fopen(file_path, (lock_type == LOCK_SH)?"rb":"rb+");
if(fp) {
if(!~flock(fileno(fp), lock_type | LOCK_NB)) {
printf("Error: ");
fp = NULL;
}
printf("Open dict in mode %d\n", lock_type);
} else puts("Open dict error");
return fp;
}
int close_and_send(THREADTIMER *timer, char *data, size_t numbytes) { int close_and_send(THREADTIMER *timer, char *data, size_t numbytes) {
close_dict(timer->fp); close_dict();
timer->is_open = 0; timer->is_open = 0;
return send_data(timer->accept_fd, data, numbytes); return send_data(timer->accept_fd, data, numbytes);
} }
void close_dict(FILE *fp) { #define set_pass(pass, sps, slen, cmd) (pass=malloc(strlen(cmd)+slen+1),((pass)?(strcpy(pass,cmd),strcpy(pass+strlen(cmd),sps),1):0))
puts("Close dict");
if(fp) {
flock(fileno(fp), LOCK_UN);
fclose(fp);
}
}
int main(int argc, char *argv[]) { int main(int argc, char *argv[]) {
if(argc != 4 && argc != 5) showUsage(argv[0]); if(argc != 5 && argc != 6) showUsage(argv[0]);
else { else {
int port = 0; int port = 0;
int as_daemon = !strcmp("-d", argv[1]); int as_daemon = !strcmp("-d", argv[1]);
@@ -467,9 +452,22 @@ int main(int argc, char *argv[]) {
fp = fopen(argv[as_daemon?4:3], "rb+"); fp = fopen(argv[as_daemon?4:3], "rb+");
if(!fp) fp = fopen(argv[as_daemon?4:3], "wb+"); if(!fp) fp = fopen(argv[as_daemon?4:3], "wb+");
if(fp) { if(fp) {
file_path = argv[as_daemon?4:3];
fclose(fp); fclose(fp);
if(bind_server(port, times)) if(listen_socket(times)) accept_client(); init_dict(argv[as_daemon?4:3]);
fp = NULL;
fp = fopen(argv[as_daemon?5:4], "rb");
if(fp) {
SIMPLE_PB* spb = get_pb(fp);
cfg = (CONFIG*)spb->target;
fclose(fp);
int slen = strlen(cfg->sps);
if(set_pass(setpass, cfg->sps, slen, "set") && set_pass(delpass, cfg->sps, slen, "del")) {
items_len = align_struct(sizeof(DICT), 2, d.key, d.data);
if(items_len) {
if(bind_server(port, times)) if(listen_socket(times)) accept_client();
} else puts("Align struct error.");
} else puts("Allocate memory error.");
} else printf("Error opening config file: %s\n", argv[as_daemon?5:4]);
} else printf("Error opening dict file: %s\n", argv[as_daemon?4:3]); } else printf("Error opening dict file: %s\n", argv[as_daemon?4:3]);
} else puts("Start daemon error"); } else puts("Start daemon error");
} else printf("Error times: %d\n", times); } else printf("Error times: %d\n", times);