whats the flow in this code, and whats the risk that its creating and what can i do to fix it? (c language)
#include
#include
int main (int argc, char ** argv)
{
char buffer[500];
strcpy(buffer, argv[1]);
return 0;
}

Question

lolaa2020 lolaa2020

03-11-2021
Computers and Technology

Answered

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whats the flow in this code, and whats the risk that its creating and what can i do to fix it? (c language)
#include
#include
int main (int argc, char ** argv)
{
char buffer[500];
strcpy(buffer, argv[1]);
return 0;
}

Sagot :

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tonb tonb · Answer 1 · 2021-11-03T08:55:06-04:00

tonb tonb

03-11-2021

Answer:

The risk is a buffer overflow.

Explanation:

Whatever the user passes as a command line argument, will be copied into the buffer. If the user passes more than 499 characters, the end of the buffer will be overwritten.

To solve it, compare the string length of argv[1] to 500 before copying, or even better, start using the new strcpy_s( ) function.

Answer Link

whats the flow in this code, and whats the risk that its creating and what can i do to fix it? (c language) #include #include int main (int argc, char ** argv) { char buffer[500]; strcpy(buffer, argv[1]); return 0; }

Sagot :

Other Questions

whats the flow in this code, and whats the risk that its creating and what can i do to fix it? (c language)
#include
#include
int main (int argc, char ** argv)
{
char buffer[500];
strcpy(buffer, argv[1]);
return 0;
}