有名管道——读写fifo

#include <stdio.h>
#include <stdlib.h>
#include<unistd.h>
#include<string.h>
#include<sys/types.h>
#include<sys/wait.h>
#include<sys/stat.h>
#include<fcntl.h>
int main(void)
{
    int len =0;
    char buf[100];
    memset(buf,0 ,sizeof(buf));
    int fd = open("fifo1",O_RDONLY);
    while( (len=read(fd,buf,sizeof(buf))) > 0)
    {
        printf("%s
",buf);
    }
    close(fd);
    return 0;
}

#include <stdio.h>
#include <stdlib.h>
#include<unistd.h>
#include<string.h>
#include<sys/types.h>
#include<sys/wait.h>
#include<sys/stat.h>
#include<fcntl.h>
int main(int arg,char* args[])
{
    int len = 0;
    char buf[100];
    memset(buf,0,sizeof(buf));
    int fd = open("fifo1",O_WRONLY);
    while(1)
    {
        scanf("%s",buf);
        if(buf[0]=='0')
            break;
        write(fd,buf,sizeof(buf));
    }
    close(fd);
    return 0;
}

.SUFFIXES:.c .o

CC=gcc
SRCS1=myfifo.c
SRCS2=writefifo.c

OBJS1=$(SRCS1:.c=.o)
OBJS2=$(SRCS2:.c=.o)

EXEC1=readfifo
EXEC2=writefifo


all: $(OBJS1) $(OBJS2)
    $(CC) -o $(EXEC1) $(OBJS1)
    $(CC) -o $(EXEC2) $(OBJS2)
    @echo '-----------------ok----------------------'
.c.o:
    $(CC) -Wall -g -o $@ -c $<
clean:
    -rm -f $(OBJS1)
    -rm -f $(OBJS2)
    -rm -f core*