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Question 6

Question 6

Computer Networking: A Top-Down Approach (7th Edition)
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...
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Question 6 Our source function is source and our sink function is sink. What is the tainted flow in the code below? 1 int main(int argc, char *argv]) { char *x - nullptr; 3 while (argc) { 4. sink(x); 5 X = source); 6. --argc; 7 8 } O x@2 to x@5 О ха5 to x@4 O There is no tainted flow. O x@2 to x@4 Question 7 Our source function is source and our sink function is sink. source never returns null. What is the tainted flow in the code below? 1 void foo(char *arg) { 2 if (arg == nullptr) { sink(arg); 4 } 5 } 7 int main(void) { 8 char *x = source(); 9. foo(x); 10 char *y = nullptr; 11 foo(y); 12 } O x@8 to y@11 There is no tainted flow. O x@8 to x@9 x@8 to arg@3
Transcribed Image Text:Question 6 Our source function is source and our sink function is sink. What is the tainted flow in the code below? 1 int main(int argc, char *argv]) { char *x - nullptr; 3 while (argc) { 4. sink(x); 5 X = source); 6. --argc; 7 8 } O x@2 to x@5 О ха5 to x@4 O There is no tainted flow. O x@2 to x@4 Question 7 Our source function is source and our sink function is sink. source never returns null. What is the tainted flow in the code below? 1 void foo(char *arg) { 2 if (arg == nullptr) { sink(arg); 4 } 5 } 7 int main(void) { 8 char *x = source(); 9. foo(x); 10 char *y = nullptr; 11 foo(y); 12 } O x@8 to y@11 There is no tainted flow. O x@8 to x@9 x@8 to arg@3
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