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Socket Error List Linux


Macro: int ENODEV The wrong type of device was given to a function that expects a particular sort of device. The next operation on this socket will return the error code of the pending error. A temporary resource shortage made an operation impossible. MSG_OOB Sends out-of-band data on sockets that support this notion (e.g., of type SOCK_STREAM); the underlying protocol must also support out-of-band data. his comment is here

Link bubrek November 3, 2010, 11:46 am i have to make stronge grip on C++ please help me by sending handout/notes and practices Link Cancel reply Leave a Comment Name Email Make sure to bookmark this article for future reference. EFAULT An invalid user space address was specified for an argument. CONFORMING TO top POSIX.1-2001, POSIX.1-2008, 4.4BSD.

Linux Errno Example

Password Programming This forum is for all programming questions. Thanks! It is generally portable to/from non- BSD systems supporting clones of the BSD socket layer (including System V variants). Macro: int EPROTONOSUPPORT The socket domain does not support the requested communications protocol (perhaps because the requested protocol is completely invalid).

  1. Note that registered members see fewer ads, and ContentLink is completely disabled once you log in.
  2. errno is thread-local; setting it in one thread does not affect its value in any other thread.
  3. The following error codes are defined by the Linux/i386 kernel.

darkarcon2015 Linux - Software 4 12-21-2004 11:39 PM isolinux error codes deidre Linux - Newbie 7 02-06-2004 11:50 AM All times are GMT -5. It will not work with modern versions of the C library. In such cases, a successful return can be distinguished from an error return by setting errno to zero before the call, and then, if the call returns a status that indicates Errno 0 ENFILE The system-wide limit on the total number of open files has been reached.

But you gave nothing special more than formatting the contents of the linux errno headers. EMFILE The per-process limit on the number of open file descriptors has been reached. Other errors may be generated by the underlying protocol modules. https://gist.github.com/gabrielfalcao/4216897 So the above example could be replaced with: if (s < 0) { fprintf(stderr, "socket() failed: %m\n"); exit(1); } And to make it all simpler, there is the perror function, which

Looking up error codes manually is ill advise IMO. Ebadf Since Linux 2.6, this flag is also supported for UDP sockets, and informs the kernel to package all of the data sent in calls with this flag set into a single Macro: int ENETDOWN A socket operation failed because the network was down. Do not do this.

Errno.h In C

POSIX.1-2001 only describes the MSG_OOB and MSG_EOR flags. connectSocket = socket(AF_INET, SOCK_STREAM, 0); if (connectSocket < 0) { if (errno == EACCESS) ... Linux Errno Example See getprotoent(3) on how to map protocol name strings to protocol numbers. Errno.h Windows Tweet >Add your comment If you enjoyed this article, you might also like.. 50 Linux Sysadmin Tutorials 50 Most Frequently Used Linux Commands (With Examples) Top 25 Best Linux Performance

I hope this would help. this content The SOCK_NONBLOCK and SOCK_CLOEXEC flags are Linux-specific. Macro: int ENETUNREACH A socket operation failed because the subnet containing the remote host was unreachable. Macro: int EACCES Permission denied; the file permissions do not allow the attempted operation. Posix Error Codes

Macro: int EDIED On GNU/Hurd systems, opening a file returns this error when the file is translated by a program and the translator program dies while starting up, before it has SOCK_DGRAM Supports datagrams (connectionless, unreliable messages of a fixed maximum length). The functions setsockopt(2) and getsockopt(2) are used to set and get options, respectively. http://phabletkeyboards.com/socket-error/socket-error-4-linux.php Such shortages are usually fairly serious and affect the whole system, so usually an interactive program should report the error to the user and return to its command loop.

For sendmsg(), the message is pointed to by the elements of the array msg.msg_iov. Enoexec infamous41md View Public Profile View LQ Blog View Review Entries View HCL Entries Find More Posts by infamous41md 03-19-2004, 06:15 PM #3 itsme86 Senior Member Registered: Jan 2004 Location: If the value of errno should be preserved across a library call, it must be saved: if (somecall() == -1) { int errsv = errno; printf("somecall() failed\n"); if (errsv == ...)

Macro: int EFTYPE Inappropriate file type or format.

Out-of-band data may also be transmitted as described in send(2) and received as described in recv(2). The strerror function returns a string describing the error code passed in the argument errnum. Macro: int EXDEV An attempt to make an improper link across file systems was detected. Bad File Number Follow us on Google+ Follow us on Twitter Become a fan on Facebook Support Us Support this blog by purchasing one of my ebooks.

Anatomy of a living, tree-based spaceship - What's it made from? Macro: int EOPNOTSUPP The operation you requested is not supported. If you get this error, you might want to increase the RLIMIT_NOFILE limit or make it unlimited; see Limits on Resources. check over here You can use perror in stdio.h to print an error message based on the value of errno or you can use strerror in string.h to access a string describing the error

For example, trying to mount an ordinary file as a file system in Unix gives this error. Putting the socket call and the test for < 0 in one statement, the above code could look like this, and you'll be a real UNIX pro: #include #include