Consider two programs below. What output will be produced by running program 2? Assume the output of getpid() as XXX. // Program 1 #include #include int main() { printf("PID %d running prog1\n", getpid()); } // Program 2 #include #include int main() { char* argv[2]; argv[0] = (char*) "prog1"; argv[1] = nullptr; %3D printf("PID %d running prog2\n", getpid()); int r = execv("./prog1", argv); printf("PID %d exiting from prog2\n", getpid()); }
Consider two programs below. What output will be produced by running program 2? Assume the output of getpid() as XXX. // Program 1 #include #include int main() { printf("PID %d running prog1\n", getpid()); } // Program 2 #include #include int main() { char* argv[2]; argv[0] = (char*) "prog1"; argv[1] = nullptr; %3D printf("PID %d running prog2\n", getpid()); int r = execv("./prog1", argv); printf("PID %d exiting from prog2\n", getpid()); }
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
Related questions
Question
![Consider two programs below. What output will be produced by running program 2?
Assume the output of getpid() as XXX.
// Program 1
#include <cstdio>
#include <unistd.h>
int main() {
printf("PID %d running prog1\n", getpid());
}
// Program 2
#include <cstdio>
#include <unistd.h>
int main() {
char* argv[2];
argv[0] = (char*) "prog1";
argv[1] = nullptr;
printf("PID %d running prog2\n", getpid());
int r =
execv("./prog1", argv);
printf("PID %d exiting from prog2\n", getpid());
}](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fdf1416eb-c36a-4b4e-80e1-abddd2998713%2F4c7b235c-1d6c-4422-9a84-a79c69d3d919%2Fdg7yvk_processed.png&w=3840&q=75)
Transcribed Image Text:Consider two programs below. What output will be produced by running program 2?
Assume the output of getpid() as XXX.
// Program 1
#include <cstdio>
#include <unistd.h>
int main() {
printf("PID %d running prog1\n", getpid());
}
// Program 2
#include <cstdio>
#include <unistd.h>
int main() {
char* argv[2];
argv[0] = (char*) "prog1";
argv[1] = nullptr;
printf("PID %d running prog2\n", getpid());
int r =
execv("./prog1", argv);
printf("PID %d exiting from prog2\n", getpid());
}
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