infolog.cpp

简单的一个日志系统

#include "stdafx.h"
#include "infolog.h"

#define MAXLINELEN1 4096

void err_prn(const char *fmt,va_list ap, char *logfile)
{
	char buf[MAXLINELEN1];
	FILE *plf;
	
	vsprintf(buf,fmt,ap);
	strcat(buf,"\n");
	fflush(stdout);
	if(logfile!=NULL)
		if((plf=fopen(logfile,"a"))!=NULL)
		{
			fputs(buf,plf);
			fclose(plf);
		}else
			fputs("failed to open log file\n",stderr);
	else
		fputs(buf,stderr);
	fflush(NULL);
	return;
}
	
void syserror(const char *fmt,...)
{
	char prechar[100];
	char *p;
	time_t t;

	time(&t);
	p = ctime(&t);
	p[strlen(p)-1]=0;
	sprintf(prechar,"[%s] Error:%s",p,fmt);
	fmt=prechar;

	va_list ap;
	va_start(ap,fmt);
	err_prn(fmt,ap,"errlog.log");
	va_end(ap);
	return;
}

void sysinfo(const char *fmt,...)
{
	char prechar[100];
	char *p;
	time_t t;

	time(&t);
	
	p = ctime(&t);
	p[strlen(p)-1]=0;
	sprintf(prechar,"[%s] Info:%s",p,fmt);
	fmt=prechar;
	va_list ap;
	va_start(ap,fmt);
	err_prn(fmt,ap,"infolog.log");
	va_end(ap);
	return;
}

char * ccstr(char * str)
{
	char *tok = " ",*p;  
	char bufline[1000];
	int len;
	
	strcpy(bufline,str);
	p = strtok(bufline,tok);

	if ( p == NULL)
	{
		str[0] = 0;
		return(str);
	}

	if ((len = strlen(bufline) - strlen(p)) > 0)
	{
		memcpy(str,str+len,strlen(str));
		p=NULL;
	}
	
	p = strtok( str, tok );  
	while( p != NULL )  
	{  
		if( p != str )  
			strcat( str, p );  
		p = strtok( NULL, tok );  
	}  
	return( str );  

}

char * ccstrex(char * str,char * tok)
{
	char *p;  
	char bufline[1000];
	int len;
	
	strcpy(bufline,str);
	p = strtok(bufline,tok);

	if ( p == NULL)
	{
		str[0] = 0;
		return(str);
	}

	if ((len = strlen(bufline) - strlen(p)) > 0)
	{
		memcpy(str,str+len,strlen(str));
		p=NULL;
	}
	
	p = strtok( str, tok );  
	while( p != NULL )  
	{  
		if( p != str )  
			strcat( str, p );  
		p = strtok( NULL, tok );  
	}  
	return( str );  

}