diff options
Diffstat (limited to 'drivers/builtin_openssl2/crypto/bio/b_print.c')
| -rw-r--r-- | drivers/builtin_openssl2/crypto/bio/b_print.c | 513 |
1 files changed, 267 insertions, 246 deletions
diff --git a/drivers/builtin_openssl2/crypto/bio/b_print.c b/drivers/builtin_openssl2/crypto/bio/b_print.c index 143a7cfefa..90248fa2aa 100644 --- a/drivers/builtin_openssl2/crypto/bio/b_print.c +++ b/drivers/builtin_openssl2/crypto/bio/b_print.c @@ -5,21 +5,21 @@ * This package is an SSL implementation written * by Eric Young (eay@cryptsoft.com). * The implementation was written so as to conform with Netscapes SSL. - * + * * This library is free for commercial and non-commercial use as long as * the following conditions are aheared to. The following conditions * apply to all code found in this distribution, be it the RC4, RSA, * lhash, DES, etc., code; not just the SSL code. The SSL documentation * included with this distribution is covered by the same copyright terms * except that the holder is Tim Hudson (tjh@cryptsoft.com). - * + * * Copyright remains Eric Young's, and as such any Copyright notices in * the code are not to be removed. * If this package is used in a product, Eric Young should be given attribution * as the author of the parts of the library used. * This can be in the form of a textual message at program startup or * in documentation (online or textual) provided with the package. - * + * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: @@ -34,10 +34,10 @@ * Eric Young (eay@cryptsoft.com)" * The word 'cryptographic' can be left out if the rouines from the library * being used are not cryptographic related :-). - * 4. If you include any Windows specific code (or a derivative thereof) from + * 4. If you include any Windows specific code (or a derivative thereof) from * the apps directory (application code) you must include an acknowledgement: * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" - * + * * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE @@ -49,7 +49,7 @@ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. - * + * * The licence and distribution terms for any publically available version or * derivative of this code cannot be changed. i.e. this code cannot simply be * copied and put under another distribution licence @@ -63,7 +63,7 @@ # endif #endif -/* +/* * Stolen from tjh's ssl/ssl_trc.c stuff. */ @@ -74,7 +74,7 @@ #include <limits.h> #include "cryptlib.h" #ifndef NO_SYS_TYPES_H -#include <sys/types.h> +# include <sys/types.h> #endif #include <openssl/bn.h> /* To get BN_LLONG properly defined */ #include <openssl/bio.h> @@ -94,7 +94,7 @@ * 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: @@ -110,31 +110,31 @@ */ #ifdef HAVE_LONG_DOUBLE -#define LDOUBLE long double +# define LDOUBLE long double #else -#define LDOUBLE double +# define LDOUBLE double #endif #ifdef HAVE_LONG_LONG # if defined(_WIN32) && !defined(__GNUC__) -# define LLONG __int64 +# define LLONG __int64 # else -# define LLONG long long +# define LLONG long long # endif #else -#define LLONG long +# define LLONG long #endif -static void fmtstr (char **, char **, size_t *, size_t *, - const char *, int, int, int); -static void fmtint (char **, char **, size_t *, size_t *, - LLONG, int, int, int, int); -static void fmtfp (char **, char **, size_t *, size_t *, - LDOUBLE, int, int, int); -static void doapr_outch (char **, char **, size_t *, size_t *, int); -static void _dopr(char **sbuffer, char **buffer, - size_t *maxlen, size_t *retlen, int *truncated, - const char *format, va_list args); +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 @@ -165,15 +165,11 @@ static void _dopr(char **sbuffer, char **buffer, #define char_to_int(p) (p - '0') #define OSSL_MAX(p,q) ((p >= q) ? p : q) -static void -_dopr( - char **sbuffer, - char **buffer, - size_t *maxlen, - size_t *retlen, - int *truncated, - const char *format, - va_list args) +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; @@ -200,7 +196,8 @@ _dopr( if (ch == '%') state = DP_S_FLAGS; else - doapr_outch(sbuffer,buffer, &currlen, maxlen, ch); + if(!doapr_outch(sbuffer, buffer, &currlen, maxlen, ch)) + return 0; ch = *format++; break; case DP_S_FLAGS: @@ -306,8 +303,9 @@ _dopr( value = va_arg(args, int); break; } - fmtint(sbuffer, buffer, &currlen, maxlen, - value, 10, min, max, flags); + if (!fmtint(sbuffer, buffer, &currlen, maxlen, value, 10, min, + max, flags)) + return 0; break; case 'X': flags |= DP_F_UP; @@ -321,28 +319,28 @@ _dopr( value = (unsigned short int)va_arg(args, unsigned int); break; case DP_C_LONG: - value = (LLONG) va_arg(args, - unsigned long int); + 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); + value = (LLONG) va_arg(args, unsigned int); break; } - fmtint(sbuffer, buffer, &currlen, maxlen, value, - ch == 'o' ? 8 : (ch == 'u' ? 10 : 16), - min, max, flags); + 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); - fmtfp(sbuffer, buffer, &currlen, maxlen, - fvalue, min, max, flags); + if (!fmtfp(sbuffer, buffer, &currlen, maxlen, fvalue, min, max, + flags)) + return 0; break; case 'E': flags |= DP_F_UP; @@ -361,26 +359,29 @@ _dopr( fvalue = va_arg(args, double); break; case 'c': - doapr_outch(sbuffer, buffer, &currlen, maxlen, - va_arg(args, int)); + 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; - } - fmtstr(sbuffer, buffer, &currlen, maxlen, strvalue, - flags, min, max); + 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 *); - fmtint(sbuffer, buffer, &currlen, maxlen, - value, 16, min, max, flags|DP_F_NUM); + if (!fmtint(sbuffer, buffer, &currlen, maxlen, + value, 16, min, max, flags | DP_F_NUM)) + return 0; break; - case 'n': /* XXX */ + case 'n': /* XXX */ if (cflags == DP_C_SHORT) { short int *num; num = va_arg(args, short int *); @@ -388,19 +389,20 @@ _dopr( } else if (cflags == DP_C_LONG) { /* XXX */ long int *num; num = va_arg(args, long int *); - *num = (long int) currlen; + *num = (long int)currlen; } else if (cflags == DP_C_LLONG) { /* XXX */ LLONG *num; num = va_arg(args, LLONG *); *num = (LLONG) currlen; } else { - int *num; + int *num; num = va_arg(args, int *); *num = currlen; } break; case '%': - doapr_outch(sbuffer, buffer, &currlen, maxlen, ch); + if(!doapr_outch(sbuffer, buffer, &currlen, maxlen, ch)) + return 0; break; case 'w': /* not supported yet, treat as next char */ @@ -424,67 +426,65 @@ _dopr( *truncated = (currlen > *maxlen - 1); if (*truncated) currlen = *maxlen - 1; - doapr_outch(sbuffer, buffer, &currlen, maxlen, '\0'); + if(!doapr_outch(sbuffer, buffer, &currlen, maxlen, '\0')) + return 0; *retlen = currlen - 1; - return; + return 1; } -static void -fmtstr( - char **sbuffer, - char **buffer, - size_t *currlen, - size_t *maxlen, - const char *value, - int flags, - int min, - int max) +static int +fmtstr(char **sbuffer, + char **buffer, + size_t *currlen, + size_t *maxlen, const char *value, int flags, int min, int max) { - int padlen, strln; + int padlen; + size_t strln; int cnt = 0; if (value == 0) value = "<NULL>"; - for (strln = 0; value[strln]; ++strln) - ; + + strln = strlen(value); + if (strln > INT_MAX) + strln = INT_MAX; + padlen = min - strln; - if (padlen < 0) + if (min < 0 || padlen < 0) padlen = 0; if (flags & DP_F_MINUS) padlen = -padlen; while ((padlen > 0) && (cnt < max)) { - doapr_outch(sbuffer, buffer, currlen, maxlen, ' '); + if(!doapr_outch(sbuffer, buffer, currlen, maxlen, ' ')) + return 0; --padlen; ++cnt; } while (*value && (cnt < max)) { - doapr_outch(sbuffer, buffer, currlen, maxlen, *value++); + if(!doapr_outch(sbuffer, buffer, currlen, maxlen, *value++)) + return 0; ++cnt; } while ((padlen < 0) && (cnt < max)) { - doapr_outch(sbuffer, buffer, currlen, maxlen, ' '); + if(!doapr_outch(sbuffer, buffer, currlen, maxlen, ' ')) + return 0; ++padlen; ++cnt; } + return 1; } -static void -fmtint( - char **sbuffer, - char **buffer, - size_t *currlen, - size_t *maxlen, - LLONG value, - int base, - int min, - int max, - int flags) +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]; + char convert[DECIMAL_SIZE(value) + 3]; int place = 0; int spadlen = 0; int zpadlen = 0; @@ -503,23 +503,25 @@ fmtint( signvalue = ' '; } if (flags & DP_F_NUM) { - if (base == 8) prefix = "0"; - if (base == 16) prefix = "0x"; + 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); + 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); + spadlen = + min - OSSL_MAX(max, place) - (signvalue ? 1 : 0) - strlen(prefix); if (zpadlen < 0) zpadlen = 0; if (spadlen < 0) @@ -533,41 +535,47 @@ fmtint( /* spaces */ while (spadlen > 0) { - doapr_outch(sbuffer, buffer, currlen, maxlen, ' '); + if(!doapr_outch(sbuffer, buffer, currlen, maxlen, ' ')) + return 0; --spadlen; } /* sign */ if (signvalue) - doapr_outch(sbuffer, buffer, currlen, maxlen, signvalue); + if(!doapr_outch(sbuffer, buffer, currlen, maxlen, signvalue)) + return 0; /* prefix */ while (*prefix) { - doapr_outch(sbuffer, buffer, currlen, maxlen, *prefix); - prefix++; + if(!doapr_outch(sbuffer, buffer, currlen, maxlen, *prefix)) + return 0; + prefix++; } /* zeros */ if (zpadlen > 0) { while (zpadlen > 0) { - doapr_outch(sbuffer, buffer, currlen, maxlen, '0'); + if(!doapr_outch(sbuffer, buffer, currlen, maxlen, '0')) + return 0; --zpadlen; } } /* digits */ - while (place > 0) - doapr_outch(sbuffer, buffer, currlen, maxlen, convert[--place]); + while (place > 0) { + if (!doapr_outch(sbuffer, buffer, currlen, maxlen, convert[--place])) + return 0; + } /* left justified spaces */ while (spadlen < 0) { - doapr_outch(sbuffer, buffer, currlen, maxlen, ' '); + if (!doapr_outch(sbuffer, buffer, currlen, maxlen, ' ')) + return 0; ++spadlen; } - return; + return 1; } -static LDOUBLE -abs_val(LDOUBLE value) +static LDOUBLE abs_val(LDOUBLE value) { LDOUBLE result = value; if (value < 0) @@ -575,8 +583,7 @@ abs_val(LDOUBLE value) return result; } -static LDOUBLE -pow_10(int in_exp) +static LDOUBLE pow_10(int in_exp) { LDOUBLE result = 1; while (in_exp) { @@ -586,27 +593,21 @@ pow_10(int in_exp) return result; } -static long -roundv(LDOUBLE value) +static long roundv(LDOUBLE value) { long intpart; - intpart = (long) value; + intpart = (long)value; value = value - intpart; if (value >= 0.5) intpart++; return intpart; } -static void -fmtfp( - char **sbuffer, - char **buffer, - size_t *currlen, - size_t *maxlen, - LDOUBLE fvalue, - int min, - int max, - int flags) +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; @@ -616,7 +617,6 @@ fmtfp( int fplace = 0; int padlen = 0; int zpadlen = 0; - int caps = 0; long intpart; long fracpart; long max10; @@ -633,13 +633,17 @@ fmtfp( intpart = (long)ufvalue; - /* sorry, we only support 9 digits past the decimal because of our - conversion method */ + /* + * 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 */ + /* + * 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)); @@ -650,9 +654,7 @@ fmtfp( /* convert integer part */ do { - iconvert[iplace++] = - (caps ? "0123456789ABCDEF" - : "0123456789abcdef")[intpart % 10]; + iconvert[iplace++] = "0123456789"[intpart % 10]; intpart = (intpart / 10); } while (intpart && (iplace < (int)sizeof(iconvert))); if (iplace == sizeof iconvert) @@ -661,9 +663,7 @@ fmtfp( /* convert fractional part */ do { - fconvert[fplace++] = - (caps ? "0123456789ABCDEF" - : "0123456789abcdef")[fracpart % 10]; + fconvert[fplace++] = "0123456789"[fracpart % 10]; fracpart = (fracpart / 10); } while (fplace < max); if (fplace == sizeof fconvert) @@ -682,161 +682,182 @@ fmtfp( if ((flags & DP_F_ZERO) && (padlen > 0)) { if (signvalue) { - doapr_outch(sbuffer, buffer, currlen, maxlen, signvalue); + if (!doapr_outch(sbuffer, buffer, currlen, maxlen, signvalue)) + return 0; --padlen; signvalue = 0; } while (padlen > 0) { - doapr_outch(sbuffer, buffer, currlen, maxlen, '0'); + if (!doapr_outch(sbuffer, buffer, currlen, maxlen, '0')) + return 0; --padlen; } } while (padlen > 0) { - doapr_outch(sbuffer, buffer, currlen, maxlen, ' '); + if (!doapr_outch(sbuffer, buffer, currlen, maxlen, ' ')) + return 0; --padlen; } - if (signvalue) - doapr_outch(sbuffer, buffer, currlen, maxlen, signvalue); + if (signvalue && !doapr_outch(sbuffer, buffer, currlen, maxlen, signvalue)) + return 0; - while (iplace > 0) - doapr_outch(sbuffer, buffer, currlen, maxlen, iconvert[--iplace]); + 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)) { - doapr_outch(sbuffer, buffer, currlen, maxlen, '.'); + if (!doapr_outch(sbuffer, buffer, currlen, maxlen, '.')) + return 0; - while (fplace > 0) - doapr_outch(sbuffer, buffer, currlen, maxlen, fconvert[--fplace]); + while (fplace > 0) { + if(!doapr_outch(sbuffer, buffer, currlen, maxlen, + fconvert[--fplace])) + return 0; + } } while (zpadlen > 0) { - doapr_outch(sbuffer, buffer, currlen, maxlen, '0'); + if (!doapr_outch(sbuffer, buffer, currlen, maxlen, '0')) + return 0; --zpadlen; } while (padlen < 0) { - doapr_outch(sbuffer, buffer, currlen, maxlen, ' '); + if (!doapr_outch(sbuffer, buffer, currlen, maxlen, ' ')) + return 0; ++padlen; } + return 1; } -static void -doapr_outch( - char **sbuffer, - char **buffer, - size_t *currlen, - size_t *maxlen, - int c) +#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); - if (buffer) { - while (*currlen >= *maxlen) { - if (*buffer == NULL) { - if (*maxlen == 0) - *maxlen = 1024; - *buffer = OPENSSL_malloc(*maxlen); - if (*currlen > 0) { - assert(*sbuffer != NULL); - memcpy(*buffer, *sbuffer, *currlen); - } - *sbuffer = NULL; - } else { - *maxlen += 1024; - *buffer = OPENSSL_realloc(*buffer, *maxlen); - } - } - /* What to do if *buffer is NULL? */ - 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; + if (*sbuffer) + (*sbuffer)[(*currlen)++] = (char)c; + else + (*buffer)[(*currlen)++] = (char)c; } - return; + return 1; } /***************************************************************************/ -int BIO_printf (BIO *bio, const char *format, ...) - { - va_list args; - int ret; - - va_start(args, format); - - ret = BIO_vprintf(bio, format, args); - - va_end(args); - return(ret); - } - -int BIO_vprintf (BIO *bio, const char *format, va_list args) - { - 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()"); - _dopr(&hugebufp, &dynbuf, &hugebufsize, - &retlen, &ignored, format, args); - if (dynbuf) - { - ret=BIO_write(bio, dynbuf, (int)retlen); - OPENSSL_free(dynbuf); - } - else - { - ret=BIO_write(bio, hugebuf, (int)retlen); - } - CRYPTO_pop_info(); - return(ret); - } - -/* As snprintf is not available everywhere, we provide our own implementation. - * This function has nothing to do with BIOs, but it's closely related - * to BIO_printf, and we need *some* name prefix ... - * (XXX the function should be renamed, but to what?) */ +int BIO_printf(BIO *bio, const char *format, ...) +{ + va_list args; + int ret; + + va_start(args, format); + + ret = BIO_vprintf(bio, format, args); + + va_end(args); + return (ret); +} + +int BIO_vprintf(BIO *bio, const char *format, va_list args) +{ + 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(); + return (ret); +} + +/* + * As snprintf is not available everywhere, we provide our own + * implementation. This function has nothing to do with BIOs, but it's + * closely related to BIO_printf, and we need *some* name prefix ... (XXX the + * function should be renamed, but to what?) + */ int BIO_snprintf(char *buf, size_t n, const char *format, ...) - { - va_list args; - int ret; +{ + va_list args; + int ret; - va_start(args, format); + va_start(args, format); - ret = BIO_vsnprintf(buf, n, format, args); + ret = BIO_vsnprintf(buf, n, format, args); - va_end(args); - return(ret); - } + va_end(args); + return (ret); +} int BIO_vsnprintf(char *buf, size_t n, const char *format, va_list args) - { - size_t retlen; - int truncated; - - _dopr(&buf, NULL, &n, &retlen, &truncated, format, args); - - 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; - } +{ + size_t retlen; + int truncated; + + if(!_dopr(&buf, NULL, &n, &retlen, &truncated, format, args)) + 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; +} |