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Implemented strerror_r() - the actual error description is now returned

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by a static function and used by both, strerror() and strerror_r().


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@5261 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Axel Dörfler 2003-11-05 23:53:29 +00:00
parent f175a63eaa
commit 8529e01d1f
1 changed files with 34 additions and 13 deletions
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47
src/kernel/libroot/posix/string/strerror.c
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@ -3,17 +3,17 @@
** Distributed under the terms of the NewOS License.
*/
#include <sys/types.h>
#include <Errors.h>
#include <stdio.h>
#include <string.h>
#include <stdio.h>
#include <kerrors.h>
char *
strerror(int errnum)
static char *
error_description(int error)
{
switch (errnum) {
switch (error) {
/* General Errors */
case B_NO_ERROR:
return "No Error";
@ -79,11 +79,9 @@ strerror(int errnum)
case ESPIPE:
return "Illegal seek"; // "Seek not allowed on file descriptor"
// case ERR_UNIMPLEMENTED:
case ENOSYS:
return "Unimplemented"; // "Function not implemented"
// case ERR_TOO_BIG:
case EDOM:
return "Numerical argument out of range"; // "Domain Error"
@ -579,11 +577,34 @@ strerror(int errnum)
return "Data is not a message";
default:
{
static char unknown[28];
sprintf(unknown, "Unknown Error (%d)", errnum);
return unknown;
}
return NULL;
}
}
char *
strerror(int error)
{
static char unknown[28];
char *description = error_description(error);
if (description != NULL)
return description;
sprintf(unknown, "Unknown Error (%d)", error);
return unknown;
}
int
strerror_r(int error, char *buffer, size_t bufferSize)
{
char *description = error_description(error);
if (description == NULL)
return EINVAL;
strlcpy(buffer, description, bufferSize);
return 0;
// ToDo: could return ERANGE if buffer is too small
}