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-rw-r--r--net/tnftp/files/libnetbsd/snprintf.c788
1 files changed, 788 insertions, 0 deletions
diff --git a/net/tnftp/files/libnetbsd/snprintf.c b/net/tnftp/files/libnetbsd/snprintf.c
new file mode 100644
index 00000000000..01c3c773800
--- /dev/null
+++ b/net/tnftp/files/libnetbsd/snprintf.c
@@ -0,0 +1,788 @@
+/* $Id: snprintf.c,v 1.1.1.1 2003/07/26 20:39:05 lukem Exp $ */
+
+/*
+ * 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
+ */
+
+/**************************************************************
+ * Original:
+ * Patrick Powell Tue Apr 11 09:48:21 PDT 1995
+ * A bombproof version of doprnt (dopr) included.
+ * Sigh. This sort of thing is always nasty do deal with. Note that
+ * the version here does not include floating point...
+ *
+ * snprintf() is used instead of sprintf() as it does limit checks
+ * for string length. This covers a nasty loophole.
+ *
+ * The other functions are there to prevent NULL pointers from
+ * causing nast effects.
+ *
+ * More Recently:
+ * Brandon Long <blong@fiction.net> 9/15/96 for mutt 0.43
+ * This was ugly. It is still ugly. I opted out of floating point
+ * numbers, but the formatter understands just about everything
+ * from the normal C string format, at least as far as I can tell from
+ * the Solaris 2.5 printf(3S) man page.
+ *
+ * Brandon Long <blong@fiction.net> 10/22/97 for mutt 0.87.1
+ * Ok, added some minimal floating point support, which means this
+ * probably requires libm on most operating systems. Don't yet
+ * support the exponent (e,E) and sigfig (g,G). Also, fmtint()
+ * was pretty badly broken, it just wasn't being exercised in ways
+ * which showed it, so that's been fixed. Also, formated the code
+ * to mutt conventions, and removed dead code left over from the
+ * original. Also, there is now a builtin-test, just compile with:
+ * gcc -DTEST_SNPRINTF -o snprintf snprintf.c -lm
+ * and run snprintf for results.
+ *
+ * Thomas Roessler <roessler@guug.de> 01/27/98 for mutt 0.89i
+ * The PGP code was using unsigned hexadecimal formats.
+ * Unfortunately, unsigned formats simply didn't work.
+ *
+ * Michael Elkins <me@cs.hmc.edu> 03/05/98 for mutt 0.90.8
+ * The original code assumed that both snprintf() and vsnprintf() were
+ * missing. Some systems only have snprintf() but not vsnprintf(), so
+ * the code is now broken down under HAVE_SNPRINTF and HAVE_VSNPRINTF.
+ *
+ * Andrew Tridgell (tridge@samba.org) Oct 1998
+ * fixed handling of %.0f
+ * added test for HAVE_LONG_DOUBLE
+ *
+ * Luke Mewburn <lukem@NetBSD.org>, Thu Sep 30 23:28:21 EST 1999
+ * cleaned up formatting, autoconf tests
+ * added long long support
+ *
+ **************************************************************/
+
+#include "tnftp.h"
+
+
+#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 dopr(char *buffer, size_t maxlen, size_t *retlen,
+ const char *format, va_list args);
+static void fmtstr(char *buffer, size_t * currlen, size_t maxlen,
+ char *value, int min, int max, int flags);
+static void fmtint(char *buffer, size_t * currlen, size_t maxlen,
+ LLONG value, int base, int min, int max, int flags);
+static void fmtfp(char *buffer, size_t * currlen, size_t maxlen,
+ LDOUBLE fvalue, int min, int max, int flags);
+static void dopr_outch(char *buffer, size_t * currlen, size_t maxlen, int c);
+
+/*
+ * dopr(): poor man's version of doprintf
+ */
+
+/* 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
+
+#define char_to_int(p) (p - '0')
+
+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 = 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 = 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);
+ /* um, floating point? */
+ 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; /* ie, no max */
+ fmtstr(buffer, &currlen, maxlen, strvalue,
+ min, max, flags);
+ 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:
+ /* hmm? */
+ break; /* some picky compilers need this */
+ }
+ }
+ if (currlen >= maxlen - 1)
+ currlen = maxlen - 1;
+ buffer[currlen] = '\0';
+ *retlen = currlen;
+}
+
+static void
+fmtstr(char *buffer, size_t *currlen, size_t maxlen, char *value,
+ int min, int max, int flags)
+{
+ int padlen, strln; /* amount to pad */
+ int cnt = 0;
+
+ if (value == 0) {
+ value = "<NULL>";
+ }
+ for (strln = 0; value[strln]; ++strln)
+ ; /* strlen */
+ padlen = min - strln;
+ if (padlen < 0)
+ padlen = 0;
+ if (flags & DP_F_MINUS)
+ padlen = -padlen; /* Left Justify */
+
+ 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;
+ }
+}
+/* Have to handle DP_F_NUM (ie 0x and 0 alternates) */
+
+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; /* amount to space pad */
+ int zpadlen = 0; /* amount to zero pad */
+ 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) /* Do a sign (+/i) */
+ signvalue = '+';
+ else if (flags & DP_F_SPACE)
+ signvalue = ' ';
+ }
+ if (flags & DP_F_UP)
+ caps = 1; /* Should characters be upper case? */
+
+ 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; /* Left Justifty */
+
+#ifdef DEBUG_SNPRINTF
+ printf("zpad: %d, spad: %d, min: %d, max: %d, place: %d\n",
+ zpadlen, spadlen, min, max, place);
+#endif
+
+ /* 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;
+ }
+}
+
+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; /* amount to pad */
+ int zpadlen = 0;
+ int caps = 0;
+ long intpart;
+ long fracpart;
+
+ /* AIX manpage says the default is 0, but Solaris says the default is
+ * 6, and sprintf on AIX defaults to 6 */
+ if (max < 0)
+ max = 6;
+
+ ufvalue = abs_val(fvalue);
+
+ if (fvalue < 0)
+ signvalue = '-';
+ else if (flags & DP_F_PLUS) /* Do a sign (+/i) */
+ signvalue = '+';
+ else if (flags & DP_F_SPACE)
+ signvalue = ' ';
+
+#if 0
+ if (flags & DP_F_UP)
+ caps = 1; /* Should characters be upper case? */
+#endif
+
+ 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 -= pow10(max);
+ }
+#ifdef DEBUG_SNPRINTF
+ printf("fmtfp: %g %d.%d min=%d max=%d\n",
+ (double) fvalue, intpart, fracpart, min, max);
+#endif
+
+ /* 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; /* Left Justifty */
+
+ 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]);
+
+
+#ifdef DEBUG_SNPRINTF
+ printf("fmtfp: fplace=%d zpadlen=%d\n", fplace, zpadlen);
+#endif
+
+ /*
+ * 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;
+}
+
+int
+vsnprintf(char *str, size_t count, const char *fmt, va_list args)
+{
+ size_t retlen;
+
+ str[0] = 0;
+ dopr(str, count, &retlen, fmt, args);
+ return (retlen);
+}
+
+/* VARARGS3 */
+int
+snprintf(char *str, size_t count, const char *fmt, ...)
+{
+ va_list ap;
+ int rv;
+
+ va_start(ap, fmt);
+ rv = vsnprintf(str, count, fmt, ap);
+ va_end(ap);
+ return (rv);
+}
+
+
+#ifdef TEST_SNPRINTF
+#ifndef LONG_STRING
+#define LONG_STRING 1024
+#endif
+
+int
+main(int argc, char *argv[])
+{
+ char buf1[LONG_STRING];
+ char buf2[LONG_STRING];
+ char *fp_fmt[] = {
+ "%-1.5f",
+ "%1.5f",
+ "%123.9f",
+ "%10.5f",
+ "% 10.5f",
+ "%+22.9f",
+ "%+4.9f",
+ "%01.3f",
+ "%4f",
+ "%3.1f",
+ "%3.2f",
+ "%.0f",
+ "%.1f",
+ NULL
+ };
+ double fp_nums[] = {
+ -1.5, 134.21, 91340.2, 341.1234, 0203.9,
+ 0.96, 0.996, 0.9996, 1.996, 4.136,
+ 0
+ };
+ char *int_fmt[] = {
+ "%-1.5d",
+ "%1.5d",
+ "%123.9d",
+ "%5.5d",
+ "%10.5d",
+ "% 10.5d",
+ "%+22.33d",
+ "%01.3d",
+ "%4d",
+#if HAVE_LONG_LONG
+ "%12lld",
+#endif
+ NULL
+ };
+ LLONG int_nums[] = {
+ -1, 134, 91340, 341, 0203,
+ 4294967290,
+ 4294967297,
+ 0
+ };
+ int x, y;
+ int fail = 0;
+ int num = 0;
+ int len;
+
+ printf("Testing snprintf format codes against system sprintf...\n");
+
+ for (x = 0; fp_fmt[x] != NULL; x++) {
+ printf("testing %s\n", fp_fmt[x]);
+ for (y = 0; fp_nums[y] != 0; y++) {
+ snprintf(buf1, sizeof(buf1), fp_fmt[x], fp_nums[y]);
+ sprintf(buf2, fp_fmt[x], fp_nums[y]);
+ if (strcmp(buf1, buf2)) {
+ printf("snprintf doesn't match Format: %s\n",
+ fp_fmt[x]);
+ printf("\tsnprintf = %s\n\tsprintf = %s\n",
+ buf1, buf2);
+ fail++;
+ }
+ num++;
+ }
+ }
+
+ for (x = 0; int_fmt[x] != NULL; x++) {
+ printf("testing %s\n", int_fmt[x]);
+ for (y = 0; int_nums[y] != 0; y++) {
+ len = snprintf(buf1, sizeof(buf1), int_fmt[x], int_nums[y]);
+printf("got %d >%s< (%d)\n", len, buf1, (int)strlen(buf1));
+ sprintf(buf2, int_fmt[x], int_nums[y]);
+ if (strcmp(buf1, buf2)) {
+ printf("snprintf doesn't match Format: %s\n",
+ int_fmt[x]);
+ printf("\tsnprintf = %s\n\tsprintf = %s\n",
+ buf1, buf2);
+ fail++;
+ }
+ num++;
+ }
+ }
+
+ printf("%d tests failed out of %d.\n", fail, num);
+ exit(0);
+}
+#endif /* TEST_SNPRINTF */
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