Is this type of scenario that CORBA was intended for and if so, is this still the best technology to use or are there better options out there. Yes, this is what CORBA was intended to solve. Whether it’s “best” is subjective and argumentative. 🙂 I can say, from my personal experience, I don’t miss … Read more
extern changes the linkage. With the keyword, the function / variable is assumed to be available somewhere else and the resolving is deferred to the linker. There’s a difference between extern on functions and on variables. For variables it doesn’t instantiate the variable itself, i.e. doesn’t allocate any memory. This needs to be done somewhere else. Thus it’s important if … Read more
For both *printf and *scanf, %s expects the corresponding argument to be of type char *, and for scanf, it had better point to a writable buffer (i.e., not a string literal). Using %s in scanf without an explcit field width opens the same buffer overflow exploit that gets did; namely, if there are more characters in the input stream than the target buffer is sized to hold, scanf will … Read more
I see the problem. It’s this line: The == operator has precedence over the = operator. Look at the way you have the parentheses structured on that expression a bit more carefully to see what I mean. sockfd is getting initialize to “0” as a result of being assigned a boolean expression (socket(…) == -1). … Read more
You can’t (usefully) compare strings using != or ==, you need to use strcmp: The reason for this is because != and == will only compare the base addresses of those strings. Not the contents of the strings themselves.
I see the problem. It’s this line: The == operator has precedence over the = operator. Look at the way you have the parentheses structured on that expression a bit more carefully to see what I mean. sockfd is getting initialize to “0” as a result of being assigned a boolean expression (socket(…) == -1). … Read more
You can’t (usefully) compare strings using != or ==, you need to use strcmp: The reason for this is because != and == will only compare the base addresses of those strings. Not the contents of the strings themselves.
You can’t (usefully) compare strings using != or ==, you need to use strcmp: The reason for this is because != and == will only compare the base addresses of those strings. Not the contents of the strings themselves.
You can do it like this: 6 represents the number of digits after the decimal separator.
Maybe SO_REUSEADDR helps here? http://www.unixguide.net/network/socketfaq/4.5.shtml