36 lines
815 B
C
36 lines
815 B
C
#include <sys/types.h>
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#include <sys/stat.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 <wait.h>
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#include <fcntl.h>
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int main(int argc, char **argv){
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if (argc != 3){
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printf("Usage : %s <FILE1> <FILE2> | This program compares two files and is able to detect if they are different or same\n", argv[0]);
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return EXIT_FAILURE;
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}
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pid_t p;
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int fd1, fd2;
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char buf1, buf2;
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fd1 = open(argv[1], O_RDONLY);
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fd2 = open(argv[2], O_RDONLY);
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if (fd1 == -1 || fd2 == -1){
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perror("Error while opening files");
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return EXIT_FAILURE;
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}
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p = fork();
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switch(p){
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case -1:
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perror("Error while creating a new process");
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return EXIT_FAILURE;
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case 0:
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// Read file a
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read(fd1, &buf1, sizeof(char));
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default:
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//Read file b & compare both files
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read(fd2, &buf2, sizeof(char));
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