linux为什么用系统调用write将结果写入文件出现乱码

void processPacket(u_char *arg,const struct pcap_pkthdr*pkthdr,const u_char *packet){
int *counter=(int *)arg;
int out;
char count1[]="Packet Count:";
char size[]="Received Packet Size:";
char array[]="\n";
char buffer1[1024];
char buffer2[1024];

sprintf(buffer1,"%d",++(*counter));
sprintf(buffer2,"%d",pkthdr->len);

out=open("outfile.txt",O_WRONLY|O_CREAT|O_APPEND,S_IRWXU|S_IRWXG|S_IRWXO);

write(out,count1,sizeof(count1));
write(out,buffer1,sizeof(buffer1));
write(out,array,sizeof(array));
write(out,size,sizeof(size));
write(out,buffer2,sizeof(buffer2));
write(out,array,sizeof(array));

你确定write()能往文件里写入数据？
你可以写入"\n"或者写入0A和0D这两个字节的数据也行

应该scanf("%c",&a);吧