efun.3 revision 1.4 $NetBSD: efun.3,v 1.4 2006/10/20 17:40:18 christos Exp $
Copyright (c) 2006 The NetBSD Foundation, Inc.
All rights reserved.
This code is derived from software contributed to The NetBSD Foundation
by Christos Zoulas.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. All advertising materials mentioning features or use of this software
must display the following acknowledgement:
This product includes software developed by the NetBSD
Foundation, Inc. and its contributors.
4. Neither the name of The NetBSD Foundation nor the names of its
contributors may be used to endorse or promote products derived
from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
.Dd October 6, 2006 .Dt EFUN 3 .Os .Sh NAME .Nm esetfunc , .Nm easprintf , .Nm efopen , .Nm emalloc , .Nm ecalloc , .Nm erealloc , .Nm estrdup , .Nm estrlcat , .Nm estrlcpy , .Nm evasprintf .Nd error-checked utility functions .Sh LIBRARY .Lb libutil .Sh SYNOPSIS n util.h .Ft void (*)(int, const char *, ...) .Fn esetfunc "void (*)(int, const char *, ...)" .Ft int .Fn easprintf "char ** restrict str" "const char * restrict fmt" "..." .Ft FILE * .Fn efopen "const char *p" "const char *m" .Ft void * .Fn ecalloc "size_t n" "size_t c" .Ft void * .Fn emalloc "size_t n" .Ft void * .Fn erealloc "void *p" "size_t n" .Ft char * .Fn estrdup "const char *s" .Ft size_t .Fn estrlcat "char *dst" "const char *src" "size_t len" .Ft size_t .Fn estrlcpy "char *dst" "const char *src" "size_t len" .Ft int .Fn evasprintf "char ** restrict str" "const char * restrict fmt" "..." .Sh DESCRIPTION The .Nm easprintf , .Nm efopen , .Nm ecalloc , .Nm emalloc , .Nm erealloc , .Nm estrdup , .Nm estrlcat , .Nm estrlcpy , and .Nm evasprintf functions operate exactly as the correspoding functions that do not start with an .Sq e except that they call the installed error handler that can be configured with .Nm esetfunc . The default error handler is .Xr err 3 . The function .Nm esetfunc returns the previous error handler function. A .Dv NULL error handler will just call .Xr exit 3 . .Sh SEE ALSO .Xr asprintf 3 , .Xr calloc 3 , .Xr err 3 , .Xr exit 3 , .Xr fopen 3 , .Xr malloc 3 , .Xr realloc 3 , .Xr strdup 3 , .Xr strlcat 3 , .Xr strlcpy 3 , .Xr vasprintf 3
Copyright (c) 2006 The NetBSD Foundation, Inc.
All rights reserved.
This code is derived from software contributed to The NetBSD Foundation
by Christos Zoulas.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. All advertising materials mentioning features or use of this software
must display the following acknowledgement:
This product includes software developed by the NetBSD
Foundation, Inc. and its contributors.
4. Neither the name of The NetBSD Foundation nor the names of its
contributors may be used to endorse or promote products derived
from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
.Dd October 6, 2006 .Dt EFUN 3 .Os .Sh NAME .Nm esetfunc , .Nm easprintf , .Nm efopen , .Nm emalloc , .Nm ecalloc , .Nm erealloc , .Nm estrdup , .Nm estrlcat , .Nm estrlcpy , .Nm evasprintf .Nd error-checked utility functions .Sh LIBRARY .Lb libutil .Sh SYNOPSIS n util.h .Ft void (*)(int, const char *, ...) .Fn esetfunc "void (*)(int, const char *, ...)" .Ft int .Fn easprintf "char ** restrict str" "const char * restrict fmt" "..." .Ft FILE * .Fn efopen "const char *p" "const char *m" .Ft void * .Fn ecalloc "size_t n" "size_t c" .Ft void * .Fn emalloc "size_t n" .Ft void * .Fn erealloc "void *p" "size_t n" .Ft char * .Fn estrdup "const char *s" .Ft size_t .Fn estrlcat "char *dst" "const char *src" "size_t len" .Ft size_t .Fn estrlcpy "char *dst" "const char *src" "size_t len" .Ft int .Fn evasprintf "char ** restrict str" "const char * restrict fmt" "..." .Sh DESCRIPTION The .Nm easprintf , .Nm efopen , .Nm ecalloc , .Nm emalloc , .Nm erealloc , .Nm estrdup , .Nm estrlcat , .Nm estrlcpy , and .Nm evasprintf functions operate exactly as the correspoding functions that do not start with an .Sq e except that they call the installed error handler that can be configured with .Nm esetfunc . The default error handler is .Xr err 3 . The function .Nm esetfunc returns the previous error handler function. A .Dv NULL error handler will just call .Xr exit 3 . .Sh SEE ALSO .Xr asprintf 3 , .Xr calloc 3 , .Xr err 3 , .Xr exit 3 , .Xr fopen 3 , .Xr malloc 3 , .Xr realloc 3 , .Xr strdup 3 , .Xr strlcat 3 , .Xr strlcpy 3 , .Xr vasprintf 3
Indexes created Sat Oct 18 08:10:09 GMT 2025