DLERROR(3C) Standard C Library Functions DLERROR(3C)
NAME
dlerror - get diagnostic information
SYNOPSIS
#include <dlfcn.h>
char *dlerror(
void);
DESCRIPTION
The
dlerror() function returns a null-terminated character string
that describes the last error that occurred during dynamic linking
processing. The returned string contains no trailing newline. If no
dynamic linking errors have occurred since the last invocation of
dlerror(),
dlerror() returns
NULL. Thus, invoking
dlerror() a second
time, immediately following a prior invocation, results in
NULL being
returned.
USAGE
The
dlerror() function is one of a family of functions that give the
user direct access to the dynamic linking facilities. These
facilities are available to dynamically-linked processes only. See
Linker and Libraries Guide.
ATTRIBUTES
See
attributes(7) for descriptions of the following attributes:
+--------------------+-----------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+--------------------+-----------------+
|Interface Stability | Standard |
+--------------------+-----------------+
|MT-Level | MT-Safe |
+--------------------+-----------------+
SEE ALSO
ld(1),
dladdr(3C),
dlclose(3C),
dldump(3C),
dlopen(3C),
dlsym(3C),
attributes(7),
standards(7) Linker and Libraries GuideNOTES
The messages returned by
dlerror() can reside in a static buffer
that is overwritten on each call to
dlerror(). Application code
should not write to this buffer. Programs wanting to preserve an
error message should make their own copies of that message.
March 1, 2004 DLERROR(3C)
