diff options
Diffstat (limited to 'lib/vasnprintf.c')
-rw-r--r-- | lib/vasnprintf.c | 28 |
1 files changed, 19 insertions, 9 deletions
diff --git a/lib/vasnprintf.c b/lib/vasnprintf.c index d45cbdd1e..13e0ebc56 100644 --- a/lib/vasnprintf.c +++ b/lib/vasnprintf.c @@ -88,6 +88,8 @@ /* Checked size_t computations. */ #include "xsize.h" +#include "verify.h" + #if (NEED_PRINTF_DOUBLE || NEED_PRINTF_LONG_DOUBLE) && !defined IN_LIBINTL # include <math.h> # include "float+.h" @@ -277,7 +279,7 @@ decimal_point_char (void) multithread-safe on glibc systems and MacOS X systems, but is not required to be multithread-safe by POSIX. sprintf(), however, is multithread-safe. localeconv() is rarely multithread-safe. */ -# if HAVE_NL_LANGINFO && (__GLIBC__ || (defined __APPLE__ && defined __MACH__)) +# if HAVE_NL_LANGINFO && (__GLIBC__ || defined __UCLIBC__ || (defined __APPLE__ && defined __MACH__)) point = nl_langinfo (RADIXCHAR); # elif 1 char pointbuf[5]; @@ -322,11 +324,11 @@ is_infinite_or_zerol (long double x) typedef unsigned int mp_limb_t; # define GMP_LIMB_BITS 32 -typedef int mp_limb_verify[2 * (sizeof (mp_limb_t) * CHAR_BIT == GMP_LIMB_BITS) - 1]; +verify (sizeof (mp_limb_t) * CHAR_BIT == GMP_LIMB_BITS); typedef unsigned long long mp_twolimb_t; # define GMP_TWOLIMB_BITS 64 -typedef int mp_twolimb_verify[2 * (sizeof (mp_twolimb_t) * CHAR_BIT == GMP_TWOLIMB_BITS) - 1]; +verify (sizeof (mp_twolimb_t) * CHAR_BIT == GMP_TWOLIMB_BITS); /* Representation of a bignum >= 0. */ typedef struct @@ -2621,7 +2623,7 @@ VASNPRINTF (DCHAR_T *resultbuf, size_t *lengthp, size_t characters; # if !DCHAR_IS_TCHAR /* This code assumes that TCHAR_T is 'char'. */ - typedef int TCHAR_T_verify[2 * (sizeof (TCHAR_T) == 1) - 1]; + verify (sizeof (TCHAR_T) == 1); TCHAR_T *tmpsrc; DCHAR_T *tmpdst; size_t tmpdst_len; @@ -4597,6 +4599,7 @@ VASNPRINTF (DCHAR_T *resultbuf, size_t *lengthp, TCHAR_T *fbp; unsigned int prefix_count; int prefixes[2] IF_LINT (= { 0 }); + int orig_errno; #if !USE_SNPRINTF size_t tmp_length; TCHAR_T tmpbuf[700]; @@ -4751,6 +4754,10 @@ VASNPRINTF (DCHAR_T *resultbuf, size_t *lengthp, *fbp++ = ' '; if (flags & FLAG_ALT) *fbp++ = '#'; +#if __GLIBC__ >= 2 && !defined __UCLIBC__ + if (flags & FLAG_LOCALIZED) + *fbp++ = 'I'; +#endif if (!pad_ourselves) { if (flags & FLAG_ZERO) @@ -4834,14 +4841,15 @@ VASNPRINTF (DCHAR_T *resultbuf, size_t *lengthp, #endif *fbp = dp->conversion; #if USE_SNPRINTF -# if !(__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 3) || ((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__)) +# if !(((__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 3)) && !defined __UCLIBC__) || ((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__)) fbp[1] = '%'; fbp[2] = 'n'; fbp[3] = '\0'; # else /* On glibc2 systems from glibc >= 2.3 - probably also older - ones - we know that snprintf's returns value conforms to - ISO C 99: the gl_SNPRINTF_DIRECTIVE_N test passes. + ones - we know that snprintf's return value conforms to + ISO C 99: the tests gl_SNPRINTF_RETVAL_C99 and + gl_SNPRINTF_TRUNCATION_C99 pass. Therefore we can avoid using %n in this situation. On glibc2 systems from 2004-10-18 or newer, the use of %n in format strings in writable memory may crash the program @@ -4900,6 +4908,8 @@ VASNPRINTF (DCHAR_T *resultbuf, size_t *lengthp, *(TCHAR_T *) (result + length) = '\0'; #endif + orig_errno = errno; + for (;;) { int count = -1; @@ -5284,8 +5294,7 @@ VASNPRINTF (DCHAR_T *resultbuf, size_t *lengthp, DCHAR_T *tmpdst; size_t tmpdst_len; /* This code assumes that TCHAR_T is 'char'. */ - typedef int TCHAR_T_verify - [2 * (sizeof (TCHAR_T) == 1) - 1]; + verify (sizeof (TCHAR_T) == 1); # if USE_SNPRINTF tmpsrc = (TCHAR_T *) (result + length); # else @@ -5498,6 +5507,7 @@ VASNPRINTF (DCHAR_T *resultbuf, size_t *lengthp, length += count; break; } + errno = orig_errno; #undef pad_ourselves #undef prec_ourselves } |