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[code snipped] What is the best & fastest way of validating an IPv4 address?Currently I have the following code to validate the first format. Also, please suggest a mechanism tovalidate the second format(address:port) also.#define INVALID -1#define VALID 0int validate IP(char *ipadd) This looks exactly like code I've posted a couple of years ago.

Therefore, someone sending you a 10 Mi B string is typically going to overflow the heap space.Spelling errors in code are unfortunately relatively common, but we should all make special effort to avoid such errors in user-visible strings.It could lead a user of the code to wonder how many less visible errors are also in the code. Other special addresses might also be inappropriate, depending on context.Basically, the input can be either in IPAddressv4 or IPAddressv4:port format.Currently I have the following code to validate the first format. Also, please suggest a mechanism to validate the second format(address:port) also. ----------------------------- #define INVALID -1 #define VALID 0 int validate IP(char *ipadd) What is the best & fastest way of validating an IPv4 address?Basically, the input can be either in IPAddressv4 or IPAddressv4:portformat.Currently I have the following code to validate the first format. Also, please suggest a mechanism tovalidate the second format(address:port) also.Stack Exchange network consists of 173 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.Visit Stack Exchange Your code has three major errors that all the previous reviewers failed to spot.So, back to the drawing board: rc = sscanf(ipadd, "%3u.%3u.%3u.%3u%c%u%c", &b1, &b2, &b3, &b4, &sep, &port, &c); if (rc ! At least in this thread he actually interacted a bit with the respondents.Usually he declines to respond to any comments or questions.

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