1 files changed, 627 insertions, 4 deletions

diff --git a/src/lib/libcrypto/bio/b_print.c b/src/lib/libcrypto/bio/b_print.c
index f448004298..2a5e8b58c9 100644
--- a/src/lib/libcrypto/bio/b_print.c
+++ b/src/lib/libcrypto/bio/b_print.c
@@ -62,26 +62,649 @@
 
 #include <stdio.h>
 #include <stdarg.h>
+#include <string.h>
+#include <ctype.h>
 #include "cryptlib.h"
+#ifndef NO_SYS_TYPES_H
+#include <sys/types.h>
+#endif
 #include <openssl/bio.h>
 
+#ifdef BN_LLONG
+# ifndef HAVE_LONG_LONG
+#  define HAVE_LONG_LONG
+# endif
+#endif
+
+static void dopr (char *buffer, size_t maxlen, size_t *retlen,
+        const char *format, va_list args);
+
 int BIO_printf (BIO *bio, ...)
         {
         va_list args;
         char *format;
         int ret;
+        size_t retlen;
         MS_STATIC char hugebuf[1024*2]; /* 10k in one chunk is the limit */
 
         va_start(args, bio);
         format=va_arg(args, char *);
 
         hugebuf[0]='\0';
-
-        vsprintf(hugebuf,format,args);
-
-        ret=BIO_write(bio,hugebuf,strlen(hugebuf));
+        dopr(hugebuf, sizeof(hugebuf), &retlen, format, args);
+        ret=BIO_write(bio, hugebuf, (int)retlen);
 
         va_end(args);
         return(ret);
         }
 
+/*
+ * 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)
+ */
+
+#if HAVE_LONG_DOUBLE
+#define LDOUBLE long double
+#else
+#define LDOUBLE double
+#endif
+
+#if HAVE_LONG_LONG
+#define LLONG long long
+#else
+#define LLONG long
+#endif
+
+static void fmtstr     (char *, size_t *, size_t, char *, int, int, int);
+static void fmtint     (char *, size_t *, size_t, LLONG, int, int, int, int);
+static void fmtfp      (char *, size_t *, size_t, LDOUBLE, int, int, int);
+static void dopr_outch (char *, size_t *, size_t, int);
+
+/* 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 MAX(p,q) ((p >= q) ? p : q)
+
+static void
+dopr(
+    char *buffer,
+    size_t maxlen,
+    size_t *retlen,
+    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') || (currlen >= maxlen))
+            state = DP_S_DONE;
+
+        switch (state) {
+        case DP_S_DEFAULT:
+            if (ch == '%')
+                state = DP_S_FLAGS;
+            else
+                dopr_outch(buffer, &currlen, maxlen, ch);
+            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;
+                }
+                fmtint(buffer, &currlen, maxlen, value, 10, min, max, flags);
+                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;
+                }
+                fmtint(buffer, &currlen, maxlen, value,
+                       ch == 'o' ? 8 : (ch == 'u' ? 10 : 16),
+                       min, max, flags);
+                break;
+            case 'f':
+                if (cflags == DP_C_LDOUBLE)
+                    fvalue = va_arg(args, LDOUBLE);
+                else
+                    fvalue = va_arg(args, double);
+                fmtfp(buffer, &currlen, maxlen, fvalue, min, max, flags);
+                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':
+                dopr_outch(buffer, &currlen, maxlen,
+                    va_arg(args, int));
+                break;
+            case 's':
+                strvalue = va_arg(args, char *);
+                if (max < 0)
+                    max = maxlen;
+                fmtstr(buffer, &currlen, maxlen, strvalue,
+                    flags, min, max);
+                break;
+            case 'p':
+                value = (long)va_arg(args, void *);
+                fmtint(buffer, &currlen, maxlen,
+                    value, 16, min, max, flags);
+                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 '%':
+                dopr_outch(buffer, &currlen, maxlen, ch);
+                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;
+        }
+    }
+    if (currlen >= maxlen - 1)
+        currlen = maxlen - 1;
+    buffer[currlen] = '\0';
+    *retlen = currlen;
+    return;
+}
+
+static void
+fmtstr(
+    char *buffer,
+    size_t *currlen,
+    size_t maxlen,
+    char *value,
+    int flags,
+    int min,
+    int max)
+{
+    int padlen, strln;
+    int cnt = 0;
+
+    if (value == 0)
+        value = "<NULL>";
+    for (strln = 0; value[strln]; ++strln)
+        ;
+    padlen = min - strln;
+    if (padlen < 0)
+        padlen = 0;
+    if (flags & DP_F_MINUS)
+        padlen = -padlen;
+
+    while ((padlen > 0) && (cnt < max)) {
+        dopr_outch(buffer, currlen, maxlen, ' ');
+        --padlen;
+        ++cnt;
+    }
+    while (*value && (cnt < max)) {
+        dopr_outch(buffer, currlen, maxlen, *value++);
+        ++cnt;
+    }
+    while ((padlen < 0) && (cnt < max)) {
+        dopr_outch(buffer, currlen, maxlen, ' ');
+        ++padlen;
+        ++cnt;
+    }
+}
+
+static void
+fmtint(
+    char *buffer,
+    size_t *currlen,
+    size_t maxlen,
+    LLONG value,
+    int base,
+    int min,
+    int max,
+    int flags)
+{
+    int signvalue = 0;
+    unsigned LLONG uvalue;
+    char convert[20];
+    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_UP)
+        caps = 1;
+    do {
+        convert[place++] =
+            (caps ? "0123456789ABCDEF" : "0123456789abcdef")
+            [uvalue % (unsigned) base];
+        uvalue = (uvalue / (unsigned) base);
+    } while (uvalue && (place < 20));
+    if (place == 20)
+        place--;
+    convert[place] = 0;
+
+    zpadlen = max - place;
+    spadlen = min - MAX(max, place) - (signvalue ? 1 : 0);
+    if (zpadlen < 0)
+        zpadlen = 0;
+    if (spadlen < 0)
+        spadlen = 0;
+    if (flags & DP_F_ZERO) {
+        zpadlen = MAX(zpadlen, spadlen);
+        spadlen = 0;
+    }
+    if (flags & DP_F_MINUS)
+        spadlen = -spadlen;
+
+    /* spaces */
+    while (spadlen > 0) {
+        dopr_outch(buffer, currlen, maxlen, ' ');
+        --spadlen;
+    }
+
+    /* sign */
+    if (signvalue)
+        dopr_outch(buffer, currlen, maxlen, signvalue);
+
+    /* zeros */
+    if (zpadlen > 0) {
+        while (zpadlen > 0) {
+            dopr_outch(buffer, currlen, maxlen, '0');
+            --zpadlen;
+        }
+    }
+    /* digits */
+    while (place > 0)
+        dopr_outch(buffer, currlen, maxlen, convert[--place]);
+
+    /* left justified spaces */
+    while (spadlen < 0) {
+        dopr_outch(buffer, currlen, maxlen, ' ');
+        ++spadlen;
+    }
+    return;
+}
+
+static LDOUBLE
+abs_val(LDOUBLE value)
+{
+    LDOUBLE result = value;
+    if (value < 0)
+        result = -value;
+    return result;
+}
+
+static LDOUBLE
+pow10(int exp)
+{
+    LDOUBLE result = 1;
+    while (exp) {
+        result *= 10;
+        exp--;
+    }
+    return result;
+}
+
+static long
+round(LDOUBLE value)
+{
+    long intpart;
+    intpart = (long) value;
+    value = value - intpart;
+    if (value >= 0.5)
+        intpart++;
+    return intpart;
+}
+
+static void
+fmtfp(
+    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;
+    int caps = 0;
+    long intpart;
+    long fracpart;
+
+    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 */
+    fracpart = round((pow10(max)) * (ufvalue - intpart));
+
+    if (fracpart >= pow10(max)) {
+        intpart++;
+        fracpart -= (long)pow10(max);
+    }
+
+    /* convert integer part */
+    do {
+        iconvert[iplace++] =
+            (caps ? "0123456789ABCDEF"
+              : "0123456789abcdef")[intpart % 10];
+        intpart = (intpart / 10);
+    } while (intpart && (iplace < 20));
+    if (iplace == 20)
+        iplace--;
+    iconvert[iplace] = 0;
+
+    /* convert fractional part */
+    do {
+        fconvert[fplace++] =
+            (caps ? "0123456789ABCDEF"
+              : "0123456789abcdef")[fracpart % 10];
+        fracpart = (fracpart / 10);
+    } while (fracpart && (fplace < 20));
+    if (fplace == 20)
+        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) {
+            dopr_outch(buffer, currlen, maxlen, signvalue);
+            --padlen;
+            signvalue = 0;
+        }
+        while (padlen > 0) {
+            dopr_outch(buffer, currlen, maxlen, '0');
+            --padlen;
+        }
+    }
+    while (padlen > 0) {
+        dopr_outch(buffer, currlen, maxlen, ' ');
+        --padlen;
+    }
+    if (signvalue)
+        dopr_outch(buffer, currlen, maxlen, signvalue);
+
+    while (iplace > 0)
+        dopr_outch(buffer, currlen, maxlen, iconvert[--iplace]);
+
+    /*
+     * Decimal point. This should probably use locale to find the correct
+     * char to print out.
+     */
+    if (max > 0) {
+        dopr_outch(buffer, currlen, maxlen, '.');
+
+        while (fplace > 0)
+            dopr_outch(buffer, currlen, maxlen, fconvert[--fplace]);
+    }
+    while (zpadlen > 0) {
+        dopr_outch(buffer, currlen, maxlen, '0');
+        --zpadlen;
+    }
+
+    while (padlen < 0) {
+        dopr_outch(buffer, currlen, maxlen, ' ');
+        ++padlen;
+    }
+}
+
+static void
+dopr_outch(
+    char *buffer,
+    size_t *currlen,
+    size_t maxlen,
+    int c)
+{
+    if (*currlen < maxlen)
+        buffer[(*currlen)++] = (char)c;
+    return;
+}