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Differential D18656 Diff 52331 head/lib/libc/string/strerror.c

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head/lib/libc/string/strerror.c

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#include <limits.h> #include <limits.h>
#include <errno.h> #include <errno.h>
#include <string.h> #include <string.h>
#include <stdio.h> #include <stdio.h>
#include "errlst.h" #include "errlst.h"
#define UPREFIX "Unknown error"
/* /*
* Define a buffer size big enough to describe a 64-bit signed integer * Define buffer big enough to contain delimiter (": ", 2 bytes),
* converted to ASCII decimal (19 bytes), with an optional leading sign * 64-bit signed integer converted to ASCII decimal (19 bytes) with
* (1 byte); finally, we get the prefix, delimiter (": ") and a trailing * optional leading sign (1 byte), and a trailing NUL.
* NUL from UPREFIX.
*/ */
#define EBUFSIZE (20 + 2 + sizeof(UPREFIX)) #define EBUFSIZE (2 + 19 + 1 + 1)
/* /*
* Doing this by hand instead of linking with stdio(3) avoids bloat for * Doing this by hand instead of linking with stdio(3) avoids bloat for
* statically linked binaries. * statically linked binaries.
*/ */
static void static void
errstr(int num, char *uprefix, char *buf, size_t len) errstr(int num, char *uprefix, char *buf, size_t len)
{ {
Show All 23 Lines#if defined(NLS)
int saved_errno = errno; int saved_errno = errno;
nl_catd catd; nl_catd catd;
catd = catopen("libc", NL_CAT_LOCALE); catd = catopen("libc", NL_CAT_LOCALE);
#endif #endif
if (errnum < 0 || errnum >= __hidden_sys_nerr) { if (errnum < 0 || errnum >= __hidden_sys_nerr) {
errstr(errnum, errstr(errnum,
#if defined(NLS) #if defined(NLS)
catgets(catd, 1, 0xffff, UPREFIX), catgets(catd, 1, 0xffff, __uprefix),
#else #else
UPREFIX, __uprefix,
#endif #endif
strerrbuf, buflen); strerrbuf, buflen);
retval = EINVAL; retval = EINVAL;
} else { } else {
if (strlcpy(strerrbuf, if (strlcpy(strerrbuf,
#if defined(NLS) #if defined(NLS)
catgets(catd, 1, errnum, __hidden_sys_errlist[errnum]), catgets(catd, 1, errnum, __hidden_sys_errlist[errnum]),
#else #else
Show All 23 Lines