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Posix Error Codes


GNU Project. 2014-02-08. A few functions require the caller to preset errno to zero and test it afterwards to see if an error was detected. The header shall provide a declaration for errno and give positive values for the following symbolic constants. Please try the request again. his comment is here

It defines macros for reporting and retrieving error conditions through error codes stored in a static memory location called errno (short for "error number").[1] A value (the error number) is stored I occasionally google C error codes, but always end up grepping through /usr/include to find the answer. mbstowcs(buf,"\xff", 1) on systems that use UTF-8. Below is a list of the symbolic error names that are defined on Linux. http://man7.org/linux/man-pages/man3/errno.3.html

Errno Codes

Issue 5 Updated for alignment with the POSIX Realtime Extension. Hosting by jambit GmbH. strtol("0xfffffffff",NULL,0) on systems with a 32-bit wide long EILSEQ (Required since 1994 Amendment 1 to C89 standard)[3] Results from an illegal byte sequence, e.g. The header file also defines macros that expand to integer constants that represent the error codes.

UNIX is a registered Trademark of The Open Group. However, on (very) old UNIX systems, there may be no and the declaration is needed. Column 2 is a score that indicates the fraction of platforms on which the identifier is found (1 meaning all). Strerror By using this site, you agree to the Terms of Use and Privacy Policy.

Text is available under the Creative Commons Attribution-ShareAlike License; additional terms may apply. External links[edit] Errno Codes by Platform FreeBSD System: Error codes GNU C library manual: Error codes Lists of errno values on Linux, both numeric and symbolic Retrieved from "https://en.wikipedia.org/w/index.php?title=Errno.h&oldid=731244778" Categories: C For details of in-depth Linux/UNIX system programming training courses that I teach, look here. ISBN978-0321637734.

They are recorded in:- /usr/include/asm/errno.h Here is a copy of that file as of Aug 2004 on RedHat 7.3 #define EPERM 1 /* Operation not permitted */ #define ENOENT 2 /* Errno To String POSIX compliant operating systems like AIX, Linux or Solaris include many other error values, many of which are used much more often than the above ones, such as EACCES for when Your cache administrator is webmaster. 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.

How To Use Errno

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 Retrieved 27 February 2015. Errno Codes ESTRPIPE0.392if pipe/FIFO, don't sleep in stream head86Streams pipe error92if pipe/FIFO, don't sleep in stream head EUCLEAN0.3117Structure needs cleaning135Structure needs cleaning35Unknown error ENOTNAM0.2118Not a XENIX named type file137Not a XENIX named type Errno.h In C To understand the nature of the error these codes need to be interpreted.

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. this content End of informative text. Retrieved 2013-09-12. ^ errno.h:system error numbers–Base Definitions Reference, The Single UNIX® Specification, Issue 7 from The Open Group ^ "Error numbers - cppreference.com". ELIBMAX0.386Attempting to link in too many libs.82Attempting to link in too many shared libraries86Attempting to link in too many libs. Errno C++

ELIBEXEC0.387Attempting to exec a shared library.83Cannot exec a shared library directly87Attempting to exec a shared library. Wikipedia® is a registered trademark of the Wikimedia Foundation, Inc., a non-profit organization. ENOEXEC Exec format error (POSIX.1) ENOKEY Required key not available ENOLCK No locks available (POSIX.1) ENOLINK Link has been severed (POSIX.1) ENOMEDIUM No medium found ENOMEM Not enough space (POSIX.1) ENOMSG weblink Its value is significant only when the return value of the call indicated an error (i.e., -1 from most system calls; -1 or NULL from most library functions); a function that

not avail EPROGMISMATCH0.375Program version wrong75Program version wrong75Program version wrong EPROCUNAVAIL0.376Bad procedure for program76Bad procedure for program76Bad procedure for program EFTYPE0.379Inappropriate file type or format79Inappropriate file type or format79Inappropriate file type or Errno 0 This change is for alignment with the ISO/IEC9899:1999 standard. Errno.hN Not a typewriter Retrieved from "https://en.wikipedia.org/w/index.php?title=Category:POSIX_error_codes&oldid=651689247" Categories: C POSIX libraryC standard libraryComputer errors Navigation menu Personal tools Not logged inTalkContributionsCreate accountLog in Namespaces Category Talk Variants Views Read Edit View

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To save myself, and a few others, some time in the future... /usr/include/asm-generic/errno-base.h #ifndef _ASM_GENERIC_ERRNO_BASE_H #define _ASM_GENERIC_ERRNO_BASE_H #define EPERM 1 /* Operation not permitted */ #define ENOENT 2 /* No such Generated Mon, 24 Oct 2016 08:32:41 GMT by s_wx1206 (squid/3.5.20) Home Search Browse What's new Upload User accounts posix-error-codes: POSIX error codes

The posix-error-codes package [Tags:bsd3, library] A more readable Wikipedia® is a registered trademark of the Wikimedia Foundation, Inc., a non-profit organization. Strerror Example RATIONALE None.

Retrieved 2014-06-25. ^ "A brief description of Normative Addendum 1". EINVAL Invalid argument (POSIX.1) EIO Input/output error (POSIX.1) EISCONN Socket is connected (POSIX.1) EISDIR Is a directory (POSIX.1) EISNAM Is a named type file EKEYEXPIRED Key has expired EKEYREJECTED Key was Contributing In case something does not build or you find other unpleasant aspects of the library, please send a pull request or contact the maintainer. http://ismymailsecure.com/posix-error/posix-error-60.html Do not do this.

Valid error numbers are all nonzero; errno is never set to zero by any system call or library function. APPLICATION USAGE Additional error numbers may be defined on conforming systems; see the System Interfaces volume of IEEEStd1003.1-2001. errno is thread-local; setting it in one thread does not affect its value in any other thread. Library functions store only values greater than zero.