?? read.c
字號:
#include <stdio.h>
#include <fcntl.h>
#define BUFSIZE 1024
char buf[BUFSIZE];
int main()
{
int fd0;
int n;
if ((fd0 = open("/dev/rtf0", O_RDONLY)) < 0) {
fprintf(stderr, "Error opening /dev/rtf0\n");
exit(1);
} printf( "Succes opening /dev/rtf0\n");
n = read(fd0, buf, BUFSIZE); printf("read from fifo is %s!\n",buf);
}
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