Error Writing To Socket C
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Error Writing To Socket Bad Address
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Error Writing To Socket Broken Pipe
Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join error writing to socket bad file descriptor them; it only takes a minute: Sign up Socket Read/Write error up vote 0 down vote favorite would install valgrind to tell me what the problem is, but unfortunately can't any new programs on this computer... Could anyone tell me if there's an obvious problem with this "echo" program? Doing this for a friend, so not sure what the error writing to socket invalid argument layout of the client is on the other side, but I know that both reads and writes are valid socket descriptors, and I've tested that n = write(writes,"I got your message \n",20); and n = write(reads,"I got your message \n",20); both work so can confirm that it's not a case of an invalid fd. Thanks! int main( int argc, char** argv ) { int reads = atoi(argv[1]) ; int writes = atoi(argv[3]) ; int n ; char buffer[MAX_LINE]; memset(buffer, 0, sizeof(buffer)); int i = 0 ; while (1) { read(reads, buffer, sizeof(buffer)); n = write(writes,buffer,sizeof(buffer)); if (n < 0) perror("ERROR reading from socket"); } c sockets stream segmentation-fault share|improve this question edited Jul 24 '12 at 14:39 asked Jul 24 '12 at 14:33 user1018513 800727 Check the read() result in-case of error. –Edd Barrett Jul 24 '12 at 14:42 add a comment| 4 Answers 4 active oldest votes up vote 1 down vote There are a few problems, the most pressing of which is that you're likely pushing garbage data down the th
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3cdaemon Error Writing To Socket
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Socket Write Error Ftp
x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up http://stackoverflow.com/questions/11633150/socket-read-write-error write() bad address up vote 3 down vote favorite I am trying to write out the size in bytes of a string that is defined as #define PATHA "/tmp/matrix_a" using the code rtn=write(data,(strlen(PATHA)*sizeof(char)),sizeof(int)); if(rtn < 0) perror("Writing data_file 2 "); I get back Writing data_file 2 : Bad address What exactly about this is a bad address? The data file descriptor is open, http://stackoverflow.com/questions/13733776/write-bad-address and writes correctly immediately before and after the above code segment. The data to be written to the file data needs to be raw, and not ASCII. I have also tried defining the string as a char[] with the same issue c linux share|improve this question edited Dec 5 '12 at 23:39 asked Dec 5 '12 at 22:37 fotg 314519 add a comment| 5 Answers 5 active oldest votes up vote 2 down vote accepted The second argument to write() is the address of the bytes you want to write, but you are passing the bytes you want to write themselves. In order to get an address, you must store those bytes in a variable (you can't take the address of the result of an expression). For example: size_t patha_len = strlen(PATHA); rtn = write(data, &patha_len, sizeof patha_len); share|improve this answer answered Dec 5 '12 at 23:48 caf 155k14193324 add a comment| up vote 3 down vote The second argument to write() is the buffer and third argument is the size: ssize_t write(int fd, const void *buf, size_t count); The posted code passes the length which is inter
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