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strerror (3)
  • >> strerror (3) ( Solaris man: Библиотечные вызовы )
  • strerror (3) ( FreeBSD man: Библиотечные вызовы )
  • strerror (3) ( Русские man: Библиотечные вызовы )
  • strerror (3) ( Linux man: Библиотечные вызовы )
  • strerror (3) ( POSIX man: Библиотечные вызовы )
  •  

    NAME

    strerror, strerror_r - get error message string
     
    

    SYNOPSIS

    #include <string.h>
    
    char *strerror(int errnum);
    

    int strerror_r(int errnum, char *strerrbuf, size_t  buflen);
    

     

    DESCRIPTION

    The strerror() function maps the error number in errnum to an error message string, and returns a pointer to that string. It uses the same set of error messages as perror(3C). The returned string should not be overwritten.

    The strerror_r() function maps the error number in errnum to anerror message string and returns the string in the buffer pointed to by strerrbuf with length buflen.  

    RETURN VALUES

    Upon successful completion, strerror() returns a pointer to the generated message string. Otherwise, it sets errno and returns a pointer to an error message string. It returns the string "Unknown error" if errnum is not a valid error number.

    Upon successful completion, strerror_r() returns 0. Otherwise it sets errno and returns the value of errno to indicate the error. It returns the string "Unknown error" in the buffer pointed to by strerrbuf if errnum is not a valid error number.  

    ERRORS

    These functions may fail if:

    EINVAL

    The value of errnum is not a valid error number.

    The strerror_r() function may fail if:

    ERANGE

    The buflen argument specifies insufficient storage to contain the generated message string.

     

    USAGE

    Messages returned from these functions are in the native language specified by the LC_MESSAGES locale category. See setlocale(3C).  

    ATTRIBUTES

    See attributes(5) for descriptions of the following attributes:

    ATTRIBUTE TYPEATTRIBUTE VALUE

    Interface StabilityStandard

    MT-Level

     

    SEE ALSO

    gettext(3C), perror(3C), setlocale(3C), attributes(5), standards(5)


     

    Index

    NAME
    SYNOPSIS
    DESCRIPTION
    RETURN VALUES
    ERRORS
    USAGE
    ATTRIBUTES
    SEE ALSO


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