46 lines
732 B
C
46 lines
732 B
C
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#include <sys/types.h>
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#include <unistd.h>
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#include<stdio.h>
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#include <stdlib.h>
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#include<assert.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <string.h>
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#define msg1 "je suis le pere"
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#define msg2 "je suis le fils !!!"
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int main(int argc,char * argv[]){
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int infd,outfd;
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ssize_t nbread;
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char buf[1];
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pid_t p;
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if (argc != 3){
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printf("%s infile outfile\n",argv[0]);
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exit(1);
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}
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infd = open(argv[1],O_RDONLY);
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assert(infd >= 0);
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outfd = open(argv[2],O_WRONLY|O_CREAT|O_TRUNC,0644);
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assert(outfd >= 0);
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p=fork(); // <- decommentez cette ligne
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while(1){
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nbread=read(infd,buf,sizeof(buf));
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if (nbread <=0 ) break;
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write(outfd,buf,sizeof(buf));
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}
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close(infd);
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close(outfd);
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}
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