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Unix Error Numbers


UNIX is a registered Trademark of The Open Group. Macro: int ENOTCONN The socket is not connected to anything. On other OSes, $^E may give more relevant output than $! Link Felix Frank October 21, 2010, 8:16 am Hi, good thinking, but this article desperately lacks a reference to perror. have a peek here

Macro: int EPIPE Broken pipe; there is no process reading from the other end of a pipe. For each thread of a process, the value of errno is not affected by function calls or assignments to errno by other threads. Copyright © 1997 The Open Group [ Main Index | XSH | XCU | XBD | XCURSES | XNS ] Advanced Bash-Scripting Guide: PrevNextMore Bonuses

Posix Error Codes

Others drinking their drinks and smoking their pipes about the Monastery: (4)GrandFather Athanasius atcroft Skeeve As of 2016-10-31 03:25 GMT Sections? The system tried to use the device represented by a file you specified, and it couldn’t find the device. Exit Codes With Special Meanings

>Table E-1.

  1. Macro: int EADDRNOTAVAIL The requested socket address is not available; for example, you tried to give a socket a name that doesn’t match the local host name.
  2. No function in this specification sets errno to zero to indicate an error.
  3. name not unique */ #define EBADFD 81 /* f.d.
  4. 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
  5. This can mean that the device file was installed incorrectly, or that the physical device is missing or not correctly attached to the computer.
  6. An exit value greater than 255 returns an exit code modulo 256.
  7. Macro: int ENOTDIR A file that isn’t a directory was specified when a directory is required.
  8. The file was the wrong type for the operation, or a data file had the wrong format.
  9. This error happens on operations that are supposed to manipulate child processes, when there aren’t any processes to manipulate.

Macro: int EAUTH ??? Only these symbolic names should be used in programs, since the actual value of the error number is unspecified. All of them expand into integer constant values. Bad File Number Abigail[reply] Re^2: List standard Unix error codes by Anonymous Monk on May 26, 2009 at 15:18UTC Re: List standard Unix error codes by belg4mit (Prior) on Jul 16, 2003 at 20:12UTC

Follow us on Google+ Follow us on Twitter Become a fan on Facebook Support Us Support this blog by purchasing one of my ebooks. Linux Errno Example Implementations may support additional errors not included in this list, may generate errors included in this list under circumstances other than those described here, or may contain extensions or limitations that To understand the nature of the error these codes need to be interpreted. http://pubs.opengroup.org/onlinepubs/7908799/xsh/errors.html not avail74RPC prog.

For example, if you try to delete a file that is the root of a currently mounted filesystem, you get this error. Enxio This often indicates a cycle of symbolic links. A similar standard for scripting might be appropriate. Column 2 is a score that indicates the fraction of platforms on which the identifier is found (1 meaning all).

Linux Errno Example

Macro: int ENODEV The wrong type of device was given to a function that expects a particular sort of device. http://www.ioplex.com/~miallen/errcmp.html But feel free to modify the code, and post the results. Posix Error Codes Re: List standard Unix error codes (less output, more code) by tye (Sage) on Jul 16, 2003 at 18:01UTC I don't like to see "Unknown error" dozens of times. Linux Errno To String Check out past polls.

This is used to indicate various kinds of problems with passing the wrong argument to a library function. navigate here contains the C equivalent of errno as well as the string error message associated with the number. Duplicate descriptors do count toward this limit. C libraries in many older Unix systems have EWOULDBLOCK as a separate error code. Enotsup

This usually occurs because the IPC or file system object resides on a remote machine with a larger value of the type uid_t, off_t or gid_t than the local system. [EPERM] Macro: int EINPROGRESS An operation that cannot complete immediately was initiated on an object that has non-blocking mode selected. Macro: int ENOTSUP Not supported. http://crimsonskysoftware.com/linux-errno/unix-socket-error-numbers.html Macro: int EPROCUNAVAIL ???

Looking up error codes manually is ill advise IMO. Errno.h Linux Kernel getmsg() - a file descriptor was received instead of a control message. This should not cause any problems, since there is no overlap or conflict in usage of exit codes between compiled C/C++ binaries and shell scripts.

PrevHomeMacro: int EPROGUNAVAIL ???

Macro: int EOPNOTSUPP The operation you requested is not supported. How do I use this? | Other CB clients Other Users? Not even from one Unix to the other. Errno.h Windows On GNU/Hurd systems, this error never happens; you get a signal instead.

Implementations will not generate a different error number from the ones described here for error conditions described in this specification, but may generate additional errors unless explicitly disallowed for a particular PerlMonks is a proud member of the The Perl Foundation. A function returns this error when certain parameter values are valid, but the functionality they request is not available. this contact form The author of this document will not do fixups on the scripting examples to conform to the changing standard.

Inside a C program, when a function fails, you should handle the errors accordingly, or at least record the errors in a log file. You can use the select function to find out when the pending operation has completed; see Waiting for I/O. Your ad revenue supports this site. Macro: int ENOTSOCK A file that isn’t a socket was specified when a socket is required.

Some of these error codes can’t occur on GNU systems, but they can occur using the GNU C Library on other systems. The system does not guarantee that it will notice all such situations. This error means you got lucky and the system noticed; it might just hang. Macro: int EREMOTE An attempt was made to NFS-mount a remote file system with a file name that already specifies an NFS-mounted file. (This is an error on some operating systems,

Errno 66: Object is remote Errno 67: Link has been severed Errno 68: Advertise error Errno 69: Srmount error Errno 70: Communication error on send Errno 71: Protocol error Errno 72: The means by which each function provides its error numbers is specified in its description. This list was generated with the simple Perl script below running Debian GNU/Linux. To make your program portable, you should check for both codes and treat them the same.

See Limits on Resources, for details on the RLIMIT_NPROC limit. You get this error when you try to transmit data over a connectionless socket, without first specifying a destination for the data with connect. Macro: int EHOSTDOWN The remote host for a requested network connection is down. Macro: int ENOLCK No locks available.

I expected Perl to just use the standard strerror() but it appears that this code is split up much more than that and unknown error codes are handled rather differently on Keep it simple 2. Instead, they return EINPROGRESS to indicate that the operation has begun and will take some time. Larry Wall Shrine Buy PerlMonks Gear Offering Plate Awards Random Node Quests Craft Snippets Code Catacombs Editor Requests blogs.perl.org Perlsphere Perl Ironman Blog Perl Weekly Perl.com Perl 5 Wiki Perl Jobs