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Linux Errno Example
It's not likely to be any different with Linux. (Tony Lawrence) Kerio® posts Linux posts Troubleshooting posts This post tagged: Administration Basics Install/Upgrade Kernel Linux Apple Unix Unix/Linux ConsultantsSkills TestsUnix/Linux Book The 11 on segfault is interesting, as 11 is the signal number that the kernel uses to kill the process in the event of a segfault. I've seen that segmentation faults often result in an exit status of 11, though I don't know if this is simply the convention where I work (the apps that failed like Every library function that returns this error code also generates a SIGPIPE signal; this signal terminates the program if not handled or blocked. http://fullflash.net/error-code/linux-error-code-110.html
For a connectionless socket (for datagram protocols, such as UDP), you get EDESTADDRREQ instead. is not executable) Permission problem or command is not an executable. This condition never arises on GNU/Hurd systems. Interestingly, some Unixes don't have this at all: Unixware, for example returns different errors. #define EFBIG 27 /* File too large */ You've tried to extend a file byond the maximum
Linux Errno Example
Macro: int EDESTADDRREQ No default destination address was set for the socket. Tue Apr 6 16:28:27 2010: 8376 TonyLawrence I came across this recently: Universal Error Numbering System: (link) Probably won't go anywhere, but there it is. ------------------------ Printer Friendly Version Site Macro: int ENODEV The wrong type of device was given to a function that expects a particular sort of device. Linux Errno To String very lightweight low power microcontroller with memory?
I like to torture myself 0. Forum Operations by The UNIX and Linux Forums current community chat Stack Overflow Meta Stack Overflow your communities Sign up or log in to customize your list. The perror function is infinitely useful when dealing with errno (but sadly renders the point of this huge table mute). http://www.thegeekstuff.com/2010/10/linux-error-codes/ The range of unallotted exit codes will be further restricted in the future.
All Rights Reserved. Ebadf This would allot 50 valid codes, and make troubleshooting scripts more straightforward.  All user-defined exit codes in the accompanying examples to this document conform to this standard, except Macro: int EIEIO Go home and have a glass of warm, dairy-fresh milk. Why is the FBI making such a big deal out Hillary Clinton's private email server?
- Macro: int EBADMSG Macro: int EIDRM Macro: int EMULTIHOP Macro: int ENODATA Macro: int ENOLINK Macro: int ENOMSG Macro: int ENOSR Macro: int ENOSTR Macro: int EOVERFLOW Macro: int EPROTO Macro:
- Last edited by RTM; 05-27-2005 at 09:35 AM..
- Macro: int ENOTBLK A file that isn’t a block special file was given in a situation that requires one.
- If a reading process checks for this, and there isn't any, it get EINVAL.
- 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
- The system cannot allocate more virtual memory because its capacity is full.
- See Connecting.
- paper out ESHLIBVERS0.187Shared library version mismatch EBADEXEC0.185Bad executable EBADARCH0.186Bad CPU type in executable -0.143Unknown error UNKNOWN0.137Unknown error  AIX ENOTEMPTY is 17 "Directory not empty" if _ALL_SOURCE and !_LINUX_SOURCE_COMPAT  AIX
- How much more than my mortgage should I charge for rent?
- Mounting/unmounting and other filesystem related functions will also use this return. #define EBUSY 16 /* Device or resource busy */ (Linux) #define EBUSY 16 /* Device busy */ (SCO Unix) Trying
Posix Error Codes
Since exit code 1 signifies so many possible errors, it is not particularly useful in debugging.
There has been an attempt to systematize exit status numbers (see /usr/include/sysexits.hhttp://www.perlmonks.org/?node_id=274896 See wget as an example. Linux Errno Example The mmap() call will return this if you've specified a specific address but that address can't be used. Errno.h Windows Keep it simple 2.
Got something to add? I just tried it and: $ mknod test-m m $ cat test-m cat: cannot open test-m: Is a name file (error 139) EISNAM is not ENOPKG. So, unfortunately, the unix powers that be don't seem to enforce any logical set of rules, even on very commonly used executables. 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 Errno.h In C
fork can return this error. However the thing that comes closest to a "standardization" is errno.h share|improve this answer answered Jan 22 '14 at 7:35 Thorsten Staerk 1,606517 thanks for pointing the header file.. Macro: int ENOTSUP Not supported. http://fullflash.net/error-code/linux-error-code.html On some systems chmod returns this error if you try to set the sticky bit on a non-directory file; see Setting Permissions.
The plock() function ( which locks areas of a process into memory) returns this if you attempt to use it twice on the same memory segment. Errno 0 Macro: int EPIPE Broken pipe; there is no process reading from the other end of a pipe. When this happens, you should try the call again.
You can also simply drop me a line to say hello!.
See also the Popular Errno Codes by Platform page which displays only errno identifiers that are found on all systems (excluding MS Windows). perror function prints error description in standard error. Macro: int EILSEQ While decoding a multibyte character the function came along an invalid or an incomplete sequence of bytes or the given wide character is invalid. Enoexec Traditionally, the shell only stores an 8-bit return code, but sets the high bit if the process was abnormally terminated. $ sh -c 'exit 42'; echo $? 42 $ sh -c
ELIBEXEC0.387Attempting to exec a shared library.83Cannot exec a shared library directly87Attempting to exec a shared library. This is used by the file locking facilities; see File Locks. rename can cause this error if the file being renamed already has as many links as it can take (see Renaming Files). However, for other applications, there are different exit codes.
More realistically, 0 means sucess or maybe failure, 1 means general failure or maybe sucess, 2 means general failure if 1 and 0 are both used for sucess, but maybe sucess Are there standard exit codes for processes in Linux? I'm only going to look at the first 32 of these; there are many more, but these are the more common. Macro: int EFAULT Bad address; an invalid pointer was detected.
Macro: int EINVAL Invalid argument. The file was the wrong type for the operation, or a data file had the wrong format. Macro: int EPFNOSUPPORT The socket communications protocol family you requested is not supported. Looking up error codes manually is ill advise IMO.
share|improve this answer edited Jul 9 '09 at 5:48 answered Jul 9 '09 at 5:43 Dean Povey 6,31712445 add a comment| up vote 2 down vote When Linux returns 0, it Note that it isn't guaranteed that any given program will use these return values. 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. Some socket functions don’t make sense for all types of sockets, and others may not be implemented for all communications protocols.
When grep fails to find a pattern, it exits 1, but it exits 2 for a genuine failure (like permission denied).