Ebusy Error Unix
SEE ALSO top errno(1), err(3), error(3), perror(3), strerror(3) COLOPHON top This page is part of release 4.08 of the Linux man-pages project. Trying to delete a non-existent route from the routing table also uses this. #define EINTR 4 /* Interrupted system call */ When a program reads from a "slow" device (a terminal, All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its But also see EAGAIN above.
But deleting files that are in use is something that you are not supposed to do on windows, and we won't add crazy hacks to make it possible. The [EBUSY] and [EINVAL] error checks, if implemented, act as if they were performed immediately at the beginning of processing for the function and cause an error return prior to modifying Steve carefully retains the spirit and approach that have made this book so valuable. Macro: int EDESTADDRREQ No default destination address was set for the socket. you can try this out
Linux Socket Error Codes
Although less likeky in practice, trying to remove a directory that has a filesystem mounted on it will also complain in this manner. You can use select to find out when the operation will be possible; see Waiting for I/O. Macro: int EISDIR File is a directory; you cannot open a directory for writing, or create or remove hard links to it. This can mean that the function does not implement a particular command or option value or flag bit at all.
Macro: int EHOSTUNREACH The remote host for a requested network connection is not reachable. Now updated for today's systems, this third edition will be even more valuable. For example, here's a couple of lines from a Linux system: #define EPERM 1 /* Operation not permitted */ ... #define EACCES 13 /* Permission denied */ What's the difference? Errno.h Windows RagoFragmentweergave - 1993UNIX System V Network ProgrammingStephen A.
You can use the select function to find out when the pending operation has completed; see Waiting for I/O. Macro: int ENOTTY Inappropriate I/O control operation, such as trying to set terminal modes on an ordinary file. An open of /dev/tty when the process has no controlling tty will spit back EIO also. #define ENXIO 6 /* No such device or address */ This can be the result http://www.ibm.com/support/knowledgecenter/ssw_ibm_i_72/apis/unix14.htm Socket calls can also return this. #define EROFS 30 /* Read-only file system */ Not much to be said about that. #define EMLINK 31 /* Too many links */ Too many
Macro: int EADDRINUSE The requested socket address is already in use. Errno.h Linux Kernel Candidates include the System V shared memory driver ("shm"), the Xenix shared data driver ("xsd"), and the Advanced Power Management drivers ("uapm" and "pwr"). So that your designs are not limited to user-level, the author also explains how to write kernel-level communication software, including STREAMS drivers, modules, and multiplexors. An attempt to read from a stream that is closed will return EIO, as will a disk read or write that is outside of the physical bounds of the device.
Posix Error Codes
Thu Nov 17 04:39:24 2005: 1359 BigDumbDinosaur Don't forget about the perror library call. http://unix.superglobalmegacorp.com/Net2/newsrc/sys/errno.h.html Macro: int EBACKGROUND On GNU/Hurd systems, servers supporting the term protocol return this error for certain operations when the caller is not in the foreground process group of the terminal. Linux Socket Error Codes Typically a programming error causes this. #define ENOTBLK 15 /* Block device required */ Try to set disk quotas on something that isn't a block device and this is the error Linux Errno Example A seek() to before the beginning of a file returns this.
And, while a filesystem is being mounted or unmounted, a process that attempts to access it will find it locked and will get this error. #define EEXIST 17 /* File exists Macro: int EPROTONOSUPPORT The socket domain does not support the requested communications protocol (perhaps because the requested protocol is completely invalid). I'm only going to look at the first 32 of these; there are many more, but these are the more common. If it tries to wait() for a child that doesn't exist, or re-issues a wait() for the same child, it gets this. Linux Errno To String
It contains technical articles about Unix, Linux and general computing related subjects, opinion, news, help files, how-to's, tutorials and more. When you get this error, you can be sure that this particular function will always fail with ENOSYS unless you install a new version of the C library or the operating Macro: int ESHUTDOWN The socket has already been shut down. Reload to refresh your session.
Trying the same operation again will block until some external condition makes it possible to read, write, or connect (whatever the operation). Enxio Inappropriate requests ( reading from a write only device) may return this or EINVAL- there's seems to be plenty of confusion as to which to use. #define ENOTDIR 20 /* Not Building on Rich's pioneering work, he begins with files, directories, and processes, carefully laying the groundwork for more advanced techniques, such as signal handling and terminal I/O.
More than four hundred system calls and functions are demonstrated with concise, complete programs that clearly illustrate their usage, arguments, and return values.
Macro: int ENOMEM No memory available. On some systems chmod returns this error if you try to set the sticky bit on a non-directory file; see Setting Permissions. Macro: int EAGAIN Resource temporarily unavailable; the call might work if you try again later. Errno 0 This can mean that the device file was installed incorrectly, or that the physical device is missing or not correctly attached to the computer.
The values are always the same, on every operating system. Macro: int ENAMETOOLONG Filename too long (longer than PATH_MAX; see Limits for Files) or host name too long (in gethostname or sethostname; see Host Identification). The pthread_mutex_destroy() function may fail if: [EBUSY] The implementation has detected an attempt to destroy the object referenced by mutex while it is locked or referenced (for example, while being used These functions will not return an error code of [EINTR].
Got something to add? 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 Rago is the author of UNIX® System V Network Programming (Addison-Wesley, 1993). Richard StevensAgain, keep in mind that this is all examples, and may not apply to your specific platform.
Nearly all examples have been tested on four modern platforms: Solaris 10, Mac OS X version 10.6.8 (Darwin 10.8.0), FreeBSD 8.0, and Ubuntu version 12.04 (based on Linux 3.2). A description of the project, information about reporting bugs, and the latest version of this page, can be found at https://www.kernel.org/doc/man-pages/. 2016-03-15 ERRNO(3) Copyright and license for this manual page HTML For functions that operate on some object given in a parameter, such as a file descriptor or a port, it might instead mean that only that specific object (file descriptor, port, Macro: int EPROCLIM This means that the per-user limit on new process would be exceeded by an attempted fork.
But it also can come from attempting to pass too much data to an IPC message queue, and from trying to do too many operations in a semop() (semaphore) call . Already have an account? All of them expand into integer constant values. Each of these drivers has "stubs.c" code -- code that gets linked into the kernel when the driver is _not_ present -- that returns ENOPKG for certain operations.
Now, once again, Rich's colleague Steve Rago has thoroughly updated this classic work. Further calls to read() or write() use that descriptor- if it is not valid (never opened it, or closed it prior to the read or write), this is returned. #define ECHILD Macro: int E2BIG Argument list too long; used when the arguments passed to a new program being executed with one of the exec functions (see Executing a File) occupy too much Macro: int ESRCH No process matches the specified process ID.