OpenBSD-4.6/kerberosV/src/lib/krb5/krb5_warn.3

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.\" Copyright (c) 1997, 2001 - 2004 Kungliga Tekniska Högskolan
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.\" $KTH: krb5_warn.3,v 1.12 2005/03/26 10:04:33 lha Exp $
.\"
.Dd March 20, 2004
.Dt KRB5_WARN 3
.Os HEIMDAL
.Sh NAME
.Nm krb5_abort ,
.Nm krb5_abortx ,
.Nm krb5_clear_error_string ,
.Nm krb5_err ,
.Nm krb5_errx ,
.Nm krb5_free_error_string ,
.Nm krb5_get_err_text ,
.Nm krb5_get_error_string ,
.Nm krb5_have_error_string ,
.Nm krb5_set_error_string ,
.Nm krb5_set_warn_dest ,
.Nm krb5_vabort ,
.Nm krb5_vabortx ,
.Nm krb5_verr ,
.Nm krb5_verrx ,
.Nm krb5_vset_error_string ,
.Nm krb5_vwarn ,
.Nm krb5_vwarnx ,
.Nm krb5_warn ,
.Nm krb5_warnx
.Nd Heimdal warning and error functions
.Sh LIBRARY
Kerberos 5 Library (libkrb5, -lkrb5)
.Sh SYNOPSIS
.In krb5.h
.Ft krb5_error_code
.Fn krb5_abort "krb5_context context" "krb5_error_code code" "const char *fmt"  "..."
.Ft krb5_error_code
.Fn krb5_abortx "krb5_context context" "krb5_error_code code" "const char *fmt"  "..."
.Ft void
.Fn krb5_clear_error_string "krb5_context context"
.Ft krb5_error_code
.Fn krb5_err "krb5_context context" "int eval" "krb5_error_code code" "const char *format" "..."
.Ft krb5_error_code
.Fn krb5_errx "krb5_context context" "int eval" "const char *format" "..."
.Ft void
.Fn krb5_free_error_string "krb5_context context" "char *str"
.Ft krb5_error_code
.Fn krb5_verr "krb5_context context" "int eval" "krb5_error_code code" "const char *format" "va_list ap"
.Ft krb5_error_code
.Fn krb5_verrx "krb5_context context" "int eval" "const char *format" "va_list ap"
.Ft krb5_error_code
.Fn krb5_vset_error_string "krb5_context context" "const char *fmt" "va_list args"
.Ft krb5_error_code
.Fn krb5_vwarn "krb5_context context" "krb5_error_code code" "const char *format" "va_list ap"
.Ft krb5_error_code
.Fn krb5_vwarnx "krb5_context context" "const char *format" "va_list ap"
.Ft krb5_error_code
.Fn krb5_warn "krb5_context context" "krb5_error_code code" "const char *format" "..."
.Ft krb5_error_code
.Fn krb5_warnx "krb5_context context" "const char *format" "..."
.Ft krb5_error_code
.Fn krb5_set_error_string "krb5_context context" "const char *fmt" "..."
.Ft krb5_error_code
.Fn krb5_set_warn_dest "krb5_context context" "krb5_log_facility *facility"
.Ft "char *"
.Fn krb5_get_err_text "krb5_context context" "krb5_error_code code"
.Ft char*
.Fn krb5_get_error_string "krb5_context context"
.Ft krb5_boolean
.Fn krb5_have_error_string "krb5_context context"
.Ft krb5_error_code
.Fn krb5_vabortx "krb5_context context" "const char *fmt" "va_list ap"
.Ft krb5_error_code
.Fn krb5_vabort "krb5_context context" "const char *fmt" "va_list ap"
.Sh DESCRIPTION
These functions print a warning message to some destination.
.Fa format
is a printf style format specifying the message to print. The forms not ending in an
.Dq x
print the error string associated with
.Fa code
along with the message.
The
.Dq err
functions exit with exit status
.Fa eval
after printing the message.
.Pp
The
.Fn krb5_set_warn_func
function sets the destination for warning messages to the specified
.Fa facility .
Messages logged with the
.Dq warn
functions have a log level of 1, while the
.Dq err
functions log with level 0.
.Pp
.Fn krb5_get_err_text
fetches the human readable strings describing the error-code.
.Pp
.Fn krb5_abort
and 
.Nm krb5_abortx
behaves like
.Nm krb5_err
and
.Nm krb5_errx
but instead of exiting using the
.Xr exit 3
call,
.Xr abort 3
is used.
.Pp
.Fn krb5_free_error_string
frees the error string
.Fa str
returned by
.Fn krb5_get_error_string .
.Pp
.Fn krb5_clear_error_string
clears the error string from the
.Fa context .
.Pp
.Fn krb5_set_error_string
and
.Fn krb5_vset_error_string
sets an verbose error string in
.Fa context .
.Pp
.Fn krb5_get_error_string
fetches the error string from
.Fa context .
The error message in the context is consumed and must be freed using
.Fn krb5_free_error_string
by the caller.
.Pp
.Fn krb5_have_error_string
returns
.Dv TRUE
if there is a verbose error message in the
.Fa context .
.Sh SEE ALSO
.Xr krb5 3 ,
.Xr krb5_openlog 3