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provide _krb5_einval and _krb5_debug_backtrace that will ease figuring out when it happens

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This commit is contained in:
Love Hornquist Astrand
2011-05-18 21:59:56 -07:00
parent 492492e42a
commit c6c32a431f
1 changed files with 37 additions and 0 deletions
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37
lib/krb5/misc.c
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@@ -32,6 +32,9 @@
*/ */
#include "krb5_locl.h" #include "krb5_locl.h"
#ifdef HAVE_EXECINFO_H
#include <execinfo.h>
#endif
KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL KRB5_LIB_FUNCTION krb5_error_code KRB5_LIB_CALL
_krb5_s4u2self_to_checksumdata(krb5_context context, _krb5_s4u2self_to_checksumdata(krb5_context context,
@@ -89,3 +92,37 @@ krb5_enomem(krb5_context context)
krb5_set_error_message(context, ENOMEM, N_("malloc: out of memory", "")); krb5_set_error_message(context, ENOMEM, N_("malloc: out of memory", ""));
return ENOMEM; return ENOMEM;
} }
void
_krb5_debug_backtrace(krb5_context context)
{
#if defined(HAVE_BACKTRACE) && !defined(HEIMDAL_SMALLER)
void *stack[128];
char **strs = NULL;
int i, frames = backtrace(stack, sizeof(stack) / sizeof(stack[0]));
if (frames > 0)
strs = backtrace_symbols(stack, frames);
if (strs) {
for (i = 0; i < frames; i++)
_krb5_debug(context, 10, "frame %d: %s", i, strs[i]);
free(strs);
}
#endif
}
krb5_error_code
_krb5_einval(krb5_context context, const char *func, unsigned long argn)
{
#ifndef HEIMDAL_SMALLER
krb5_set_error_message(context, EINVAL,
N_("programmer error: invalid argument to %s argument %lu",
"function:line"),
func, argn);
if (_krb5_have_debug(context, 10)) {
_krb5_debug(context, 10, "invalid argument to function %s argument %lu",
func, argn);
_krb5_debug_backtrace(context);
}
#endif
return EINVAL;
}