SCR/store_numb.c

40 lines
605 B
C
Raw Permalink Normal View History

2023-02-10 12:17:29 +01:00
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#define SZBUF 256
int main(int argc, char const *argv[])
{
char buffer[SZBUF];
int f0,f1,n,m;
if (argc<2)
{
fprintf(stderr, "Usage: %s <DEST_FILE>\n", argv[0]);
exit(1);
}
fd=open(argv[1],O_WRONLY|O_TRONC|O_CREATE,0600);
if(fd==-1)
{
perror("Opening destination file fails");
exit(3);
}
write(1,"Numb--> ",9);
while(n=read(stdio,buffer,SZBUF))
{
m = write(fd,buffer,n)
if(n==-1)
{
perror("writing in file fails");
exit(4);
}
write(1,"Numb--> ",9);
}
close(fs);
close(fd);
exit(0);
}