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Linux Socket Get Error Code


C libraries in many older Unix systems have EWOULDBLOCK as a separate error code. Macro: int EBUSY Resource busy; a system resource that can’t be shared is already in use. RETURN VALUE top These calls return the number of bytes received, or -1 if an error occurred. Macro: int EPROCUNAVAIL ??? have a peek at this web-site

See getprotoent(3) on how to map protocol name strings to protocol numbers. CONFORMING TO top POSIX.1-2001, POSIX.1-2008, 4.4BSD. ENFILE The system-wide limit on the total number of open files has been reached. If the entire function is not available at all in the implementation, it returns ENOSYS instead. http://stackoverflow.com/questions/27096985/getting-error-code-when-creating-a-socket-in-linux

Linux Errno Example

The only difference is that read(2) calls will return only the amount of data requested, and any data remaining in the arriving packet will be discarded. See Asynchronous I/O. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. The protocol specifies a particular protocol to be used with the socket.

SOCK_PACKET Obsolete and should not be used in new programs; see packet(7). You can use the select function to find out when the pending operation has completed; see Waiting for I/O. The error is passed in an ancillary message with a type dependent on the protocol (for IPv4 IP_RECVERR). Errno.h In C Macro: int EPIPE Broken pipe; there is no process reading from the other end of a pipe.

Why is water-contaminated fuel bad, but water-injection is not? Thanks! Macro: int ENOSYS Function not implemented. http://man7.org/linux/man-pages/man2/recv.2.html Macro: int EISDIR File is a directory; you cannot open a directory for writing, or create or remove hard links to it.

The codegolf object Are endothermic bombs possible? Errno.h Windows Macro: int EWOULDBLOCK In the GNU C Library, this is another name for EAGAIN (above). See Connecting. SEE ALSO top fcntl(2), getsockopt(2), read(2), recvmmsg(2), select(2), shutdown(2), socket(2), cmsg(3), sockatmark(3), socket(7) COLOPHON top This page is part of release 4.08 of

Posix Error Codes

In this circumstance, read(2) has no effect (the datagram remains pending), while recv() consumes the pending datagram. http://www-numi.fnal.gov/offline_software/srt_public_context/WebDocs/Errors/unix_system_errors.html 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 Linux Errno Example How can a Mann-Whitney U-Test return a p = 1.00 for unequal means? Linux Recv When recvmsg() is called, msg_controllen should contain the length of the available buffer in msg_control; upon return from a successful call it will contain the length of the control message sequence.

MSG_OOB This flag requests receipt of out-of-band data that would not be received in the normal data stream. Check This Out Macro: int ENOENT No such file or directory. Once connected, data may be transferred using read(2) and write(2) calls or some variant of the send(2) and recv(2) calls. After an error has been passed, the pending socket error is regenerated based on the next queued error and will be passed on the next socket operation. Errno.h Linux Kernel

EAFNOSUPPORT The implementation does not support the specified address family. See Creating a Socket. Macro: int ERANGE Range error; used by mathematical functions when the result value is not representable because of overflow or underflow. Source EIBMSOCKOUTOFRANGE 1002 Socket number assigned by client interface code (for socket() and accept()) is out of range EIBMSOCKINUSE 1003 Socket number assigned by client interface code is already in use EIBMIUCVERR

This error means you got lucky and the system noticed; it might just hang. Strerror Macro: int EGRATUITOUS This error code has no purpose. fork can return this error.

The SOCK_NONBLOCK and SOCK_CLOEXEC flags are Linux-specific.

EBADF The argument sockfd is an invalid file descriptor. ENOMEM Could not allocate memory for recvmsg(). For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Errno 0 EMFILE The per-process limit on the number of open file descriptors has been reached.

Thus, a subsequent receive call will return the same data. The functions setsockopt(2) and getsockopt(2) are used to set and get options, respectively. This error can happen in a few different situations: An operation that would block was attempted on an object that has non-blocking mode selected. http://domainstool.net/error-code/linux-error-code.html Macro: int EGREGIOUS You did what?

Macro: int EMFILE The current process has too many files open and can’t open any more. The socket cannot be created until sufficient resources are freed. When the network signals an error condition to the protocol module (e.g., using a ICMP message for IP) the pending error flag is set for the socket. Macro: int ETXTBSY An attempt to execute a file that is currently open for writing, or write to a file that is currently being executed.

The caller should set msg_namelen to the size of this buffer before this call; upon return from a successful call, msg_namelen will contain the length of the returned address. Macro: int ENOTSOCK A file that isn’t a socket was specified when a socket is required. Macro: int ESOCKTNOSUPPORT The socket type is not supported. If the caller is not interested in the source address, src_addr and addrlen should be specified as NULL.

Typically, this error occurs when you are trying to delete a directory. errno is defined by the ISO C standard to be a modifiable lvalue of type int, and must not be explicitly declared; errno may be a macro. This error never occurs on GNU/Hurd systems. MSG_WAITALL (since Linux 2.2) This flag requests that the operation block until the full request is satisfied.

Macro: int EEXIST File exists; an existing file was specified in a context where it only makes sense to specify a new file.