diff options
Diffstat (limited to 'gl/vasnprintf.c')
| -rw-r--r-- | gl/vasnprintf.c | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/gl/vasnprintf.c b/gl/vasnprintf.c index 1ca8d534a0..e618901ba2 100644 --- a/gl/vasnprintf.c +++ b/gl/vasnprintf.c @@ -2889,8 +2889,8 @@ VASNPRINTF (DCHAR_T *resultbuf, size_t *lengthp, length += n; } } - } # endif + } #endif #if (NEED_PRINTF_DIRECTIVE_A || NEED_PRINTF_LONG_DOUBLE || NEED_PRINTF_DOUBLE) && !defined IN_LIBINTL else if ((dp->conversion == 'a' || dp->conversion == 'A') @@ -4953,6 +4953,7 @@ VASNPRINTF (DCHAR_T *resultbuf, size_t *lengthp, } #endif + errno = 0; switch (type) { case TYPE_SCHAR: @@ -5147,15 +5148,21 @@ VASNPRINTF (DCHAR_T *resultbuf, size_t *lengthp, /* Attempt to handle failure. */ if (count < 0) { + /* SNPRINTF or sprintf failed. Save and use the errno + that it has set, if any. */ + int saved_errno = errno; + if (!(result == resultbuf || result == NULL)) free (result); if (buf_malloced != NULL) free (buf_malloced); CLEANUP (); errno = - (dp->conversion == 'c' || dp->conversion == 's' - ? EILSEQ - : EINVAL); + (saved_errno != 0 + ? saved_errno + : (dp->conversion == 'c' || dp->conversion == 's' + ? EILSEQ + : EINVAL)); return NULL; } @@ -5491,6 +5498,8 @@ VASNPRINTF (DCHAR_T *resultbuf, size_t *lengthp, length += count; break; } +#undef pad_ourselves +#undef prec_ourselves } } } |