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openssl/0001-Axe-builtin-printf-implementation-use-glibc-instead.patch
Dominique Leuenberger 2ebd052507 Accepting request 363602 from Base:System 
- update to 1.0.2g (bsc#968044)
  * Disable weak ciphers in SSLv3 and up in default builds of OpenSSL.
    Builds that are not configured with "enable-weak-ssl-ciphers" will not
    provide any "EXPORT" or "LOW" strength ciphers.
  * Disable SSLv2 default build, default negotiation and weak ciphers.  SSLv2
    is by default disabled at build-time.  Builds that are not configured with
    "enable-ssl2" will not support SSLv2.  Even if "enable-ssl2" is used,
    users who want to negotiate SSLv2 via the version-flexible SSLv23_method()
    will need to explicitly call either of:
        SSL_CTX_clear_options(ctx, SSL_OP_NO_SSLv2);
    or
        SSL_clear_options(ssl, SSL_OP_NO_SSLv2);
    (CVE-2016-0800)
  * Fix a double-free in DSA code
     (CVE-2016-0705)
  * Disable SRP fake user seed to address a server memory leak.
     Add a new method SRP_VBASE_get1_by_user that handles the seed properly.
     (CVE-2016-0798)
  * Fix BN_hex2bn/BN_dec2bn NULL pointer deref/heap corruption
     (CVE-2016-0797)
  *) Side channel attack on modular exponentiation
     http://cachebleed.info.
     (CVE-2016-0702)
  *) Change the req app to generate a 2048-bit RSA/DSA key by default,
     if no keysize is specified with default_bits. This fixes an
     omission in an earlier change that changed all RSA/DSA key generation
     apps to use 2048 bits by default. (forwarded request 363599 from vitezslav_cizek)

OBS-URL: https://build.opensuse.org/request/show/363602
OBS-URL: https://build.opensuse.org/package/show/openSUSE:Factory/openssl?expand=0&rev=130
2016-03-05 10:21:18 +00:00

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From fd708c2242408187cff392e8b0850275ac99376f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Cristian=20Rodr=C3=ADguez?= <crrodriguez@opensuse.org>
Date: Sun, 4 May 2014 23:36:54 -0400
Subject: [PATCH] Axe builtin printf implementation, use glibc instead
Index: openssl-1.0.2g/crypto/bio/b_print.c
===================================================================
--- openssl-1.0.2g.orig/crypto/bio/b_print.c 2016-03-01 14:35:05.000000000 +0100
+++ openssl-1.0.2g/crypto/bio/b_print.c 2016-03-01 15:26:55.597307479 +0100
@@ -56,17 +56,10 @@
* [including the GNU Public Licence.]
*/
-/* disable assert() unless BIO_DEBUG has been defined */
-#ifndef BIO_DEBUG
-# ifndef NDEBUG
-# define NDEBUG
-# endif
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE
#endif
-/*
- * Stolen from tjh's ssl/ssl_trc.c stuff.
- */
-
#include <stdio.h>
#include <string.h>
#include <ctype.h>
@@ -79,708 +72,6 @@
#include <openssl/bn.h> /* To get BN_LLONG properly defined */
#include <openssl/bio.h>
-#if defined(BN_LLONG) || defined(SIXTY_FOUR_BIT)
-# ifndef HAVE_LONG_LONG
-# define HAVE_LONG_LONG 1
-# endif
-#endif
-
-/***************************************************************************/
-
-/*
- * Copyright Patrick Powell 1995
- * This code is based on code written by Patrick Powell <papowell@astart.com>
- * It may be used for any purpose as long as this notice remains intact
- * on all source code distributions.
- */
-
-/*-
- * This code contains numerious changes and enhancements which were
- * made by lots of contributors over the last years to Patrick Powell's
- * original code:
- *
- * o Patrick Powell <papowell@astart.com> (1995)
- * o Brandon Long <blong@fiction.net> (1996, for Mutt)
- * o Thomas Roessler <roessler@guug.de> (1998, for Mutt)
- * o Michael Elkins <me@cs.hmc.edu> (1998, for Mutt)
- * o Andrew Tridgell <tridge@samba.org> (1998, for Samba)
- * o Luke Mewburn <lukem@netbsd.org> (1999, for LukemFTP)
- * o Ralf S. Engelschall <rse@engelschall.com> (1999, for Pth)
- * o ... (for OpenSSL)
- */
-
-#ifdef HAVE_LONG_DOUBLE
-# define LDOUBLE long double
-#else
-# define LDOUBLE double
-#endif
-
-#ifdef HAVE_LONG_LONG
-# if defined(_WIN32) && !defined(__GNUC__)
-# define LLONG __int64
-# else
-# define LLONG long long
-# endif
-#else
-# define LLONG long
-#endif
-
-static int fmtstr(char **, char **, size_t *, size_t *,
- const char *, int, int, int);
-static int fmtint(char **, char **, size_t *, size_t *,
- LLONG, int, int, int, int);
-static int fmtfp(char **, char **, size_t *, size_t *,
- LDOUBLE, int, int, int);
-static int doapr_outch(char **, char **, size_t *, size_t *, int);
-static int _dopr(char **sbuffer, char **buffer,
- size_t *maxlen, size_t *retlen, int *truncated,
- const char *format, va_list args);
-
-/* format read states */
-#define DP_S_DEFAULT 0
-#define DP_S_FLAGS 1
-#define DP_S_MIN 2
-#define DP_S_DOT 3
-#define DP_S_MAX 4
-#define DP_S_MOD 5
-#define DP_S_CONV 6
-#define DP_S_DONE 7
-
-/* format flags - Bits */
-#define DP_F_MINUS (1 << 0)
-#define DP_F_PLUS (1 << 1)
-#define DP_F_SPACE (1 << 2)
-#define DP_F_NUM (1 << 3)
-#define DP_F_ZERO (1 << 4)
-#define DP_F_UP (1 << 5)
-#define DP_F_UNSIGNED (1 << 6)
-
-/* conversion flags */
-#define DP_C_SHORT 1
-#define DP_C_LONG 2
-#define DP_C_LDOUBLE 3
-#define DP_C_LLONG 4
-
-/* some handy macros */
-#define char_to_int(p) (p - '0')
-#define OSSL_MAX(p,q) ((p >= q) ? p : q)
-
-static int
-_dopr(char **sbuffer,
- char **buffer,
- size_t *maxlen,
- size_t *retlen, int *truncated, const char *format, va_list args)
-{
- char ch;
- LLONG value;
- LDOUBLE fvalue;
- char *strvalue;
- int min;
- int max;
- int state;
- int flags;
- int cflags;
- size_t currlen;
-
- state = DP_S_DEFAULT;
- flags = currlen = cflags = min = 0;
- max = -1;
- ch = *format++;
-
- while (state != DP_S_DONE) {
- if (ch == '\0' || (buffer == NULL && currlen >= *maxlen))
- state = DP_S_DONE;
-
- switch (state) {
- case DP_S_DEFAULT:
- if (ch == '%')
- state = DP_S_FLAGS;
- else
- if(!doapr_outch(sbuffer, buffer, &currlen, maxlen, ch))
- return 0;
- ch = *format++;
- break;
- case DP_S_FLAGS:
- switch (ch) {
- case '-':
- flags |= DP_F_MINUS;
- ch = *format++;
- break;
- case '+':
- flags |= DP_F_PLUS;
- ch = *format++;
- break;
- case ' ':
- flags |= DP_F_SPACE;
- ch = *format++;
- break;
- case '#':
- flags |= DP_F_NUM;
- ch = *format++;
- break;
- case '0':
- flags |= DP_F_ZERO;
- ch = *format++;
- break;
- default:
- state = DP_S_MIN;
- break;
- }
- break;
- case DP_S_MIN:
- if (isdigit((unsigned char)ch)) {
- min = 10 * min + char_to_int(ch);
- ch = *format++;
- } else if (ch == '*') {
- min = va_arg(args, int);
- ch = *format++;
- state = DP_S_DOT;
- } else
- state = DP_S_DOT;
- break;
- case DP_S_DOT:
- if (ch == '.') {
- state = DP_S_MAX;
- ch = *format++;
- } else
- state = DP_S_MOD;
- break;
- case DP_S_MAX:
- if (isdigit((unsigned char)ch)) {
- if (max < 0)
- max = 0;
- max = 10 * max + char_to_int(ch);
- ch = *format++;
- } else if (ch == '*') {
- max = va_arg(args, int);
- ch = *format++;
- state = DP_S_MOD;
- } else
- state = DP_S_MOD;
- break;
- case DP_S_MOD:
- switch (ch) {
- case 'h':
- cflags = DP_C_SHORT;
- ch = *format++;
- break;
- case 'l':
- if (*format == 'l') {
- cflags = DP_C_LLONG;
- format++;
- } else
- cflags = DP_C_LONG;
- ch = *format++;
- break;
- case 'q':
- cflags = DP_C_LLONG;
- ch = *format++;
- break;
- case 'L':
- cflags = DP_C_LDOUBLE;
- ch = *format++;
- break;
- default:
- break;
- }
- state = DP_S_CONV;
- break;
- case DP_S_CONV:
- switch (ch) {
- case 'd':
- case 'i':
- switch (cflags) {
- case DP_C_SHORT:
- value = (short int)va_arg(args, int);
- break;
- case DP_C_LONG:
- value = va_arg(args, long int);
- break;
- case DP_C_LLONG:
- value = va_arg(args, LLONG);
- break;
- default:
- value = va_arg(args, int);
- break;
- }
- if (!fmtint(sbuffer, buffer, &currlen, maxlen, value, 10, min,
- max, flags))
- return 0;
- break;
- case 'X':
- flags |= DP_F_UP;
- /* FALLTHROUGH */
- case 'x':
- case 'o':
- case 'u':
- flags |= DP_F_UNSIGNED;
- switch (cflags) {
- case DP_C_SHORT:
- value = (unsigned short int)va_arg(args, unsigned int);
- break;
- case DP_C_LONG:
- value = (LLONG) va_arg(args, unsigned long int);
- break;
- case DP_C_LLONG:
- value = va_arg(args, unsigned LLONG);
- break;
- default:
- value = (LLONG) va_arg(args, unsigned int);
- break;
- }
- if (!fmtint(sbuffer, buffer, &currlen, maxlen, value,
- ch == 'o' ? 8 : (ch == 'u' ? 10 : 16),
- min, max, flags))
- return 0;
- break;
- case 'f':
- if (cflags == DP_C_LDOUBLE)
- fvalue = va_arg(args, LDOUBLE);
- else
- fvalue = va_arg(args, double);
- if (!fmtfp(sbuffer, buffer, &currlen, maxlen, fvalue, min, max,
- flags))
- return 0;
- break;
- case 'E':
- flags |= DP_F_UP;
- case 'e':
- if (cflags == DP_C_LDOUBLE)
- fvalue = va_arg(args, LDOUBLE);
- else
- fvalue = va_arg(args, double);
- break;
- case 'G':
- flags |= DP_F_UP;
- case 'g':
- if (cflags == DP_C_LDOUBLE)
- fvalue = va_arg(args, LDOUBLE);
- else
- fvalue = va_arg(args, double);
- break;
- case 'c':
- if(!doapr_outch(sbuffer, buffer, &currlen, maxlen,
- va_arg(args, int)))
- return 0;
- break;
- case 's':
- strvalue = va_arg(args, char *);
- if (max < 0) {
- if (buffer)
- max = INT_MAX;
- else
- max = *maxlen;
- }
- if (!fmtstr(sbuffer, buffer, &currlen, maxlen, strvalue,
- flags, min, max))
- return 0;
- break;
- case 'p':
- value = (long)va_arg(args, void *);
- if (!fmtint(sbuffer, buffer, &currlen, maxlen,
- value, 16, min, max, flags | DP_F_NUM))
- return 0;
- break;
- case 'n': /* XXX */
- if (cflags == DP_C_SHORT) {
- short int *num;
- num = va_arg(args, short int *);
- *num = currlen;
- } else if (cflags == DP_C_LONG) { /* XXX */
- long int *num;
- num = va_arg(args, long int *);
- *num = (long int)currlen;
- } else if (cflags == DP_C_LLONG) { /* XXX */
- LLONG *num;
- num = va_arg(args, LLONG *);
- *num = (LLONG) currlen;
- } else {
- int *num;
- num = va_arg(args, int *);
- *num = currlen;
- }
- break;
- case '%':
- if(!doapr_outch(sbuffer, buffer, &currlen, maxlen, ch))
- return 0;
- break;
- case 'w':
- /* not supported yet, treat as next char */
- ch = *format++;
- break;
- default:
- /* unknown, skip */
- break;
- }
- ch = *format++;
- state = DP_S_DEFAULT;
- flags = cflags = min = 0;
- max = -1;
- break;
- case DP_S_DONE:
- break;
- default:
- break;
- }
- }
- *truncated = (currlen > *maxlen - 1);
- if (*truncated)
- currlen = *maxlen - 1;
- if(!doapr_outch(sbuffer, buffer, &currlen, maxlen, '\0'))
- return 0;
- *retlen = currlen - 1;
- return 1;
-}
-
-static int
-fmtstr(char **sbuffer,
- char **buffer,
- size_t *currlen,
- size_t *maxlen, const char *value, int flags, int min, int max)
-{
- int padlen;
- size_t strln;
- int cnt = 0;
-
- if (value == 0)
- value = "<NULL>";
-
- strln = strlen(value);
- if (strln > INT_MAX)
- strln = INT_MAX;
-
- padlen = min - strln;
- if (min < 0 || padlen < 0)
- padlen = 0;
- if (flags & DP_F_MINUS)
- padlen = -padlen;
-
- while ((padlen > 0) && (cnt < max)) {
- if(!doapr_outch(sbuffer, buffer, currlen, maxlen, ' '))
- return 0;
- --padlen;
- ++cnt;
- }
- while (*value && (cnt < max)) {
- if(!doapr_outch(sbuffer, buffer, currlen, maxlen, *value++))
- return 0;
- ++cnt;
- }
- while ((padlen < 0) && (cnt < max)) {
- if(!doapr_outch(sbuffer, buffer, currlen, maxlen, ' '))
- return 0;
- ++padlen;
- ++cnt;
- }
- return 1;
-}
-
-static int
-fmtint(char **sbuffer,
- char **buffer,
- size_t *currlen,
- size_t *maxlen, LLONG value, int base, int min, int max, int flags)
-{
- int signvalue = 0;
- const char *prefix = "";
- unsigned LLONG uvalue;
- char convert[DECIMAL_SIZE(value) + 3];
- int place = 0;
- int spadlen = 0;
- int zpadlen = 0;
- int caps = 0;
-
- if (max < 0)
- max = 0;
- uvalue = value;
- if (!(flags & DP_F_UNSIGNED)) {
- if (value < 0) {
- signvalue = '-';
- uvalue = -value;
- } else if (flags & DP_F_PLUS)
- signvalue = '+';
- else if (flags & DP_F_SPACE)
- signvalue = ' ';
- }
- if (flags & DP_F_NUM) {
- if (base == 8)
- prefix = "0";
- if (base == 16)
- prefix = "0x";
- }
- if (flags & DP_F_UP)
- caps = 1;
- do {
- convert[place++] = (caps ? "0123456789ABCDEF" : "0123456789abcdef")
- [uvalue % (unsigned)base];
- uvalue = (uvalue / (unsigned)base);
- } while (uvalue && (place < (int)sizeof(convert)));
- if (place == sizeof(convert))
- place--;
- convert[place] = 0;
-
- zpadlen = max - place;
- spadlen =
- min - OSSL_MAX(max, place) - (signvalue ? 1 : 0) - strlen(prefix);
- if (zpadlen < 0)
- zpadlen = 0;
- if (spadlen < 0)
- spadlen = 0;
- if (flags & DP_F_ZERO) {
- zpadlen = OSSL_MAX(zpadlen, spadlen);
- spadlen = 0;
- }
- if (flags & DP_F_MINUS)
- spadlen = -spadlen;
-
- /* spaces */
- while (spadlen > 0) {
- if(!doapr_outch(sbuffer, buffer, currlen, maxlen, ' '))
- return 0;
- --spadlen;
- }
-
- /* sign */
- if (signvalue)
- if(!doapr_outch(sbuffer, buffer, currlen, maxlen, signvalue))
- return 0;
-
- /* prefix */
- while (*prefix) {
- if(!doapr_outch(sbuffer, buffer, currlen, maxlen, *prefix))
- return 0;
- prefix++;
- }
-
- /* zeros */
- if (zpadlen > 0) {
- while (zpadlen > 0) {
- if(!doapr_outch(sbuffer, buffer, currlen, maxlen, '0'))
- return 0;
- --zpadlen;
- }
- }
- /* digits */
- while (place > 0) {
- if (!doapr_outch(sbuffer, buffer, currlen, maxlen, convert[--place]))
- return 0;
- }
-
- /* left justified spaces */
- while (spadlen < 0) {
- if (!doapr_outch(sbuffer, buffer, currlen, maxlen, ' '))
- return 0;
- ++spadlen;
- }
- return 1;
-}
-
-static LDOUBLE abs_val(LDOUBLE value)
-{
- LDOUBLE result = value;
- if (value < 0)
- result = -value;
- return result;
-}
-
-static LDOUBLE pow_10(int in_exp)
-{
- LDOUBLE result = 1;
- while (in_exp) {
- result *= 10;
- in_exp--;
- }
- return result;
-}
-
-static long roundv(LDOUBLE value)
-{
- long intpart;
- intpart = (long)value;
- value = value - intpart;
- if (value >= 0.5)
- intpart++;
- return intpart;
-}
-
-static int
-fmtfp(char **sbuffer,
- char **buffer,
- size_t *currlen,
- size_t *maxlen, LDOUBLE fvalue, int min, int max, int flags)
-{
- int signvalue = 0;
- LDOUBLE ufvalue;
- char iconvert[20];
- char fconvert[20];
- int iplace = 0;
- int fplace = 0;
- int padlen = 0;
- int zpadlen = 0;
- long intpart;
- long fracpart;
- long max10;
-
- if (max < 0)
- max = 6;
- ufvalue = abs_val(fvalue);
- if (fvalue < 0)
- signvalue = '-';
- else if (flags & DP_F_PLUS)
- signvalue = '+';
- else if (flags & DP_F_SPACE)
- signvalue = ' ';
-
- intpart = (long)ufvalue;
-
- /*
- * sorry, we only support 9 digits past the decimal because of our
- * conversion method
- */
- if (max > 9)
- max = 9;
-
- /*
- * we "cheat" by converting the fractional part to integer by multiplying
- * by a factor of 10
- */
- max10 = roundv(pow_10(max));
- fracpart = roundv(pow_10(max) * (ufvalue - intpart));
-
- if (fracpart >= max10) {
- intpart++;
- fracpart -= max10;
- }
-
- /* convert integer part */
- do {
- iconvert[iplace++] = "0123456789"[intpart % 10];
- intpart = (intpart / 10);
- } while (intpart && (iplace < (int)sizeof(iconvert)));
- if (iplace == sizeof iconvert)
- iplace--;
- iconvert[iplace] = 0;
-
- /* convert fractional part */
- do {
- fconvert[fplace++] = "0123456789"[fracpart % 10];
- fracpart = (fracpart / 10);
- } while (fplace < max);
- if (fplace == sizeof fconvert)
- fplace--;
- fconvert[fplace] = 0;
-
- /* -1 for decimal point, another -1 if we are printing a sign */
- padlen = min - iplace - max - 1 - ((signvalue) ? 1 : 0);
- zpadlen = max - fplace;
- if (zpadlen < 0)
- zpadlen = 0;
- if (padlen < 0)
- padlen = 0;
- if (flags & DP_F_MINUS)
- padlen = -padlen;
-
- if ((flags & DP_F_ZERO) && (padlen > 0)) {
- if (signvalue) {
- if (!doapr_outch(sbuffer, buffer, currlen, maxlen, signvalue))
- return 0;
- --padlen;
- signvalue = 0;
- }
- while (padlen > 0) {
- if (!doapr_outch(sbuffer, buffer, currlen, maxlen, '0'))
- return 0;
- --padlen;
- }
- }
- while (padlen > 0) {
- if (!doapr_outch(sbuffer, buffer, currlen, maxlen, ' '))
- return 0;
- --padlen;
- }
- if (signvalue && !doapr_outch(sbuffer, buffer, currlen, maxlen, signvalue))
- return 0;
-
- while (iplace > 0) {
- if (!doapr_outch(sbuffer, buffer, currlen, maxlen, iconvert[--iplace]))
- return 0;
- }
-
- /*
- * Decimal point. This should probably use locale to find the correct
- * char to print out.
- */
- if (max > 0 || (flags & DP_F_NUM)) {
- if (!doapr_outch(sbuffer, buffer, currlen, maxlen, '.'))
- return 0;
-
- while (fplace > 0) {
- if(!doapr_outch(sbuffer, buffer, currlen, maxlen,
- fconvert[--fplace]))
- return 0;
- }
- }
- while (zpadlen > 0) {
- if (!doapr_outch(sbuffer, buffer, currlen, maxlen, '0'))
- return 0;
- --zpadlen;
- }
-
- while (padlen < 0) {
- if (!doapr_outch(sbuffer, buffer, currlen, maxlen, ' '))
- return 0;
- ++padlen;
- }
- return 1;
-}
-
-#define BUFFER_INC 1024
-
-static int
-doapr_outch(char **sbuffer,
- char **buffer, size_t *currlen, size_t *maxlen, int c)
-{
- /* If we haven't at least one buffer, someone has doe a big booboo */
- assert(*sbuffer != NULL || buffer != NULL);
-
- /* |currlen| must always be <= |*maxlen| */
- assert(*currlen <= *maxlen);
-
- if (buffer && *currlen == *maxlen) {
- if (*maxlen > INT_MAX - BUFFER_INC)
- return 0;
-
- *maxlen += BUFFER_INC;
- if (*buffer == NULL) {
- *buffer = OPENSSL_malloc(*maxlen);
- if (*buffer == NULL)
- return 0;
- if (*currlen > 0) {
- assert(*sbuffer != NULL);
- memcpy(*buffer, *sbuffer, *currlen);
- }
- *sbuffer = NULL;
- } else {
- char *tmpbuf;
- tmpbuf = OPENSSL_realloc(*buffer, *maxlen);
- if (tmpbuf == NULL)
- return 0;
- *buffer = tmpbuf;
- }
- }
-
- if (*currlen < *maxlen) {
- if (*sbuffer)
- (*sbuffer)[(*currlen)++] = (char)c;
- else
- (*buffer)[(*currlen)++] = (char)c;
- }
-
- return 1;
-}
-
-/***************************************************************************/
-
int BIO_printf(BIO *bio, const char *format, ...)
{
va_list args;
@@ -794,32 +85,36 @@ int BIO_printf(BIO *bio, const char *for
return (ret);
}
+static ssize_t cookie_BIO_write(void *cookie, const char *buf, size_t size)
+{
+ int ret;
+ ret = BIO_write(cookie, buf, size);
+ /* BIO_write may return negative value on error,
+ * but we must return 0 on that case
+ */
+ return (ret < 0) ? 0 : ret;
+}
+
int BIO_vprintf(BIO *bio, const char *format, va_list args)
{
+ FILE *fp;
int ret;
- size_t retlen;
- char hugebuf[1024 * 2]; /* Was previously 10k, which is unreasonable
- * in small-stack environments, like threads
- * or DOS programs. */
- char *hugebufp = hugebuf;
- size_t hugebufsize = sizeof(hugebuf);
- char *dynbuf = NULL;
- int ignored;
-
- dynbuf = NULL;
- CRYPTO_push_info("doapr()");
- if (!_dopr(&hugebufp, &dynbuf, &hugebufsize, &retlen, &ignored, format,
- args)) {
- OPENSSL_free(dynbuf);
- return -1;
- }
- if (dynbuf) {
- ret = BIO_write(bio, dynbuf, (int)retlen);
- OPENSSL_free(dynbuf);
- } else {
- ret = BIO_write(bio, hugebuf, (int)retlen);
- }
- CRYPTO_pop_info();
+
+ cookie_io_functions_t bio_funcs = {
+ .read = NULL,
+ .write = cookie_BIO_write,
+ .seek = NULL,
+ .close = NULL,
+ };
+
+ fp = fopencookie(bio, "w", bio_funcs);
+
+ if (fp == NULL)
+ return -1;
+
+ ret = vfprintf(fp, format, args);
+
+ fclose(fp);
return (ret);
}
@@ -835,29 +130,21 @@ int BIO_snprintf(char *buf, size_t n, co
int ret;
va_start(args, format);
+ ret = vsnprintf(buf, n, format, args);
+ va_end(args);
- ret = BIO_vsnprintf(buf, n, format, args);
+ if (ret >= n || ret == -1) return (-1);
- va_end(args);
return (ret);
}
int BIO_vsnprintf(char *buf, size_t n, const char *format, va_list args)
{
- size_t retlen;
- int truncated;
+ int ret;
+ ret = vsnprintf(buf, n, format, args);
- if(!_dopr(&buf, NULL, &n, &retlen, &truncated, format, args))
- return -1;
+ if (ret >= n || ret == -1)
+ return (-1);
- if (truncated)
- /*
- * In case of truncation, return -1 like traditional snprintf.
- * (Current drafts for ISO/IEC 9899 say snprintf should return the
- * number of characters that would have been written, had the buffer
- * been large enough.)
- */
- return -1;
- else
- return (retlen <= INT_MAX) ? (int)retlen : -1;
+ return (ret);
}
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