2. 3.13 Using the program in Figure E3.34, identify the values of pid at lines A, B, C, and D. (Assume that the actual pids of the parent and child are 2600 and 2603, respectively.)

#include

#include

#include

int main()

{

pid_t pid, pid1;

/* fork a child process */

pid = fork();

if (pid lt; 0) { /* error occurred */

fprintf(stderr, "Fork Failed");

return 1;

}

else if (pid == 0) { /* child process */

pid1 = getpid();

printf("child: pid = %d",pid); /* A */

printf("child: pid1 = %d",pid1); /* B */

}

else { /* parent process */

pid1 = getpid();

printf("parent: pid = %d",pid); /* C */

printf("parent: pid1 = %d",pid1); /* D */

wait(NULL);

}

return 0;

}

Figure E3.34 What are the pid values?