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What would the following program print out, assuming that the file specified by fname contained abcde (without the quotes). You must explain your answer! Answers
What would the following program print out, assuming that the file specified by fname contained abcde (without the quotes). You must explain your answer! Answers with no explanation receive no credit. #include "csapp.h"
int main(int argc, char *argv[])
{
int fd1, fd2, fd3;
char c1, c2, c3;
char *fname = argv[1];
fd1 = Open(fname, O_RDONLY, 0);
fd2 = Open(fname, O_RDONLY, 0);
fd3 = Open(fname, O_RDONLY, 0);
Dup2(fd2, fd3);
Read(fd1, &c1, 1);
Read(fd2, &c2, 1);
Read(fd3, &c3, 1);
printf("c1 = %c, c2 = %c, c3 = %c ", c1, c2, c3);
return 0;
}
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