CmdParser是用于分解和分析命令輸入的，說是一個Parser，實際很簡單，就是將命令分解，然后將分解出來的命令字串跟已經(jīng)'regist'的命令字串進行一一的比較，找到就返回注冊命令的指針，并傳入相應(yīng)的參數(shù)（這部分代碼在TelnetServer中）；找不到就執(zhí)行默認的UnknownCmdProc。
#ifndef __CCCMD_H__
#define __CCCMD_H__
#include "CCDataType.h"
extern int cc_TelnetServer_ClientWriteText(SOCKET s, const char* text);
extern int cc_CmdParser_Parser(struct _cc_telnet_clientdata* client, struct _cc_cmddata** cmd, int* argc, char argv[][CC_SIZE_CMD]);
extern int cc_CmdParser_UnknownCmd(struct _cc_telnet_clientdata* client, const char* cmd);
extern int cc_RegCmd(const char* cmd, const char*help, const _cc_cmdcallback callback);
extern int cc_RegDefaultCmds();
extern int cc_CmdOutput(struct _cc_telnet_clientdata* client, const char* fmt, 
);
extern int cc_cmd_exit(struct _cc_telnet_clientdata* client, int argc, const char (*argv)[CC_SIZE_CMD]);
extern int cc_cmd_help(struct _cc_telnet_clientdata* client, int argc, const char (*argv)[CC_SIZE_CMD]);
extern int cc_cmd_list(struct _cc_telnet_clientdata* client, int argc, const char (*argv)[CC_SIZE_CMD]);
extern int cc_cmd_version(struct _cc_telnet_clientdata* client, int argc, const char (*argv)[CC_SIZE_CMD]);
#endif
#include <stdarg.h>
#include "CCCmd.h"
int cc_CmdParser_Search(const char* str, struct _cc_cmddata** cmd)
{
struct _cc_cmddata* c = cc_Global.cmd.cmd;
while(c != NULL)
{
if(strcmp(c->cmd, str) == 0)
{
(*cmd) = c;
return 0;
}
c = c->next;
}
return -1;
}
int cc_CmdParser_Parser(struct _cc_telnet_clientdata* client, struct _cc_cmddata** cmd, int* argc, char argv[][CC_SIZE_CMD])
{
char str[CC_SIZE_CMD];
char* token = NULL;
char* sep = ",";
memset(str, 0, sizeof(str));
strncpy(str, client->buf, client->recv - 2);
token = strtok(str, sep);
if(token == NULL)
return -1;
if(cc_CmdParser_Search(token, cmd) != 0)
{
cc_CmdParser_UnknownCmd(client, token);
return -1;
}
(*argc) = 0;
token = strtok(NULL, sep);
while(token != NULL)
{
strncpy(&argv[(*argc)], token, CC_SIZE_CMD);
++ (*argc);
token = strtok(NULL, sep);
}
return 0;
}
int cc_CmdParser_UnknownCmd(struct _cc_telnet_clientdata* client, const char* cmd)
{
cc_CmdOutput(client, "Unknown command - %s\r\n", cmd);
return 0;
}
int cc_RegDefaultCmds()
{
cc_RegCmd(".version", "display version info.", cc_cmd_version);
cc_RegCmd(".exit", "exit the connection.", cc_cmd_exit);
cc_RegCmd(".help", "display help info of command.", cc_cmd_help);
cc_RegCmd(".list", "list all connections.", cc_cmd_list);
return 0;
}
int cc_RegCmd(const char* cmd, const char* help, const _cc_cmdcallback callback)
{
struct _cc_cmddata* tmp = NULL;
struct _cc_cmddata* c = (struct _cc_cmddata*)malloc(sizeof(struct _cc_cmddata));
c->callback = callback;
strncpy(c->cmd, cmd, sizeof(c->cmd));
strncpy(c->help, help, sizeof(c->help));
c->next = NULL;
if(cc_Global.cmd.cmd == NULL)
{
cc_Global.cmd.cmd = c;
}
else
{
tmp = cc_Global.cmd.cmd;
while(tmp->next != NULL)
{
tmp = tmp->next;
}
tmp->next = c;
}
return 0;
}
int cc_CmdOutput(struct _cc_telnet_clientdata* client, const char* fmt, )
{
char buf[CC_SIZE_CMD];
int len = -1;
va_list args;
memset(buf, 0, sizeof(buf));
va_start(args, fmt);
len = vsprintf(buf, fmt, args);
va_end(args);
return cc_TelnetServer_ClientWrite(client->sock, buf, len);
// len = sprintf(buf, fmt, __VA_ARGS__);
}
/**//* ----------------------------- */
int cc_cmd_exit(struct _cc_telnet_clientdata* client, int argc, const char (*argv)[CC_SIZE_CMD])
{
cc_CmdOutput(client, "bye.\r\n");
return -1;
}
int cc_cmd_help(struct _cc_telnet_clientdata* client, int argc, const char (*argv)[CC_SIZE_CMD])
{
struct _cc_cmddata* tmp = cc_Global.cmd.cmd;
while(tmp != NULL)
{
if(argc > 0)
{
if(strncmp(tmp->cmd, argv[0], sizeof(tmp->cmd)) == 0)
{
cc_CmdOutput(client, "%s : %s\r\n", tmp->cmd, tmp->help);
return 0;
}
}
else
{
cc_CmdOutput(client, "%s : %s\r\n", tmp->cmd, tmp->help);
}
tmp = tmp->next;
}
return 0;
}
int cc_cmd_list(struct _cc_telnet_clientdata* client, int argc, const char (*argv)[CC_SIZE_CMD])
{
struct _cc_telnet_clientdata* tmp = cc_Global.telnet.client;
while(tmp != NULL)
{
cc_CmdOutput(client, "conn %d : %s:%d in %s", tmp->index, tmp->ip, tmp->port, asctime(gmtime(&tmp->updated)));
tmp = tmp->next;
}
cc_CmdOutput(client, "\r\n");
return 0;
}
int cc_cmd_version(struct _cc_telnet_clientdata* client, int argc, const char (*argv)[CC_SIZE_CMD])
{
cc_CmdOutput(client, "CmdChannel library v0.0.0.2 by Jie.(codejie@gmail.com).\r\n");
return 0;
}