man pages section 3: Basic Library Functions

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Updated: July 2014
 
 

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 Oracle Solaris 11.2 Linkers and Libraries Guide .

Attributes

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

ATTRIBUTE TYPE
ATTRIBUTE VALUE
Interface Stability
Committed
MT-Level
MT-Safe
Standard

See Also

ld(1), dladdr(3C), dlclose(3C), dldump(3C), dlopen(3C), dlsym(3C), attributes(5), standards( 5)

Oracle Solaris 11.2 Linkers and Libraries Guide

Notes

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.