imported new snprintf.c from samba, got rid of slprintf

14 files changed, 834 insertions, 717 deletions

diff --git a/acconfig.h b/acconfig.h
index 4033a94c..7a5f7ca8 100644
--- a/acconfig.h
+++ b/acconfig.h
@@ -14,3 +14,5 @@
 #undef HAVE_GETTIMEOFDAY_TZ
 #undef HAVE_SOCKETPAIR
 #undef HAVE_SECURE_MKSTEMP
+#undef HAVE_C99_VSNPRINTF
+
diff --git a/backup.c b/backup.c
index 6604f0b0..a30e7ff8 100644
--- a/backup.c
+++ b/backup.c
@@ -39,7 +39,7 @@ static int make_simple_backup(char *fname)
 		return 0;
 	}
 
-	slprintf(fnamebak,sizeof(fnamebak),"%s%s",fname,backup_suffix);
+	snprintf(fnamebak,sizeof(fnamebak),"%s%s",fname,backup_suffix);
 	if (do_rename(fname,fnamebak) != 0) {
 		/* cygwin (at least version b19) reports EINVAL */
 		if (errno != ENOENT && errno != EINVAL) {
@@ -92,9 +92,9 @@ static int make_bak_dir(char *fname,char *bak_path)
         while(strncmp(bak_path,"./",2)==0) bak_path += 2;
 
         if(bak_path[strlen(bak_path)-1]!='/') {
-                slprintf(fullpath,sizeof(fullpath),"%s/",bak_path);
+                snprintf(fullpath,sizeof(fullpath),"%s/",bak_path);
         } else {
-                slprintf(fullpath,sizeof(fullpath),"%s",bak_path);
+                snprintf(fullpath,sizeof(fullpath),"%s",bak_path);
         }
         p=fullpath;
         q=&fullpath[strlen(fullpath)];  /* End of bak_path string */
@@ -208,7 +208,7 @@ static int keep_backup(char *fname)
                 return 0;
         }
 
-        slprintf(keep_name, sizeof (keep_name), "%s/%s", backup_dir, fname);
+        snprintf(keep_name, sizeof (keep_name), "%s/%s", backup_dir, fname);
 
 
 #ifdef HAVE_MKNOD
diff --git a/clientserver.c b/clientserver.c
index 3d8b0a18..1baa1e09 100644
--- a/clientserver.c
+++ b/clientserver.c
@@ -499,7 +499,7 @@ int daemon_main(void)
 		    rsyserr(FLOG, errno, "failed to create pid file %s", pid_file);
 		    exit_cleanup(RERR_FILEIO);
 		}
-		slprintf(pidbuf, sizeof(pidbuf), "%d\n", pid);
+		snprintf(pidbuf, sizeof(pidbuf), "%d\n", pid);
 		write(fd, pidbuf, strlen(pidbuf));
 		close(fd);
 	}
diff --git a/configure.in b/configure.in
index d1f439eb..fca63caf 100644
--- a/configure.in
+++ b/configure.in
@@ -127,7 +127,7 @@ AC_FUNC_MEMCMP
 AC_FUNC_UTIME_NULL
 AC_CHECK_FUNCS(waitpid wait4 getcwd strdup strerror chown chmod mknod)
 AC_CHECK_FUNCS(fchmod fstat strchr readlink link utime utimes strftime)
-AC_CHECK_FUNCS(memmove lchown vsnprintf snprintf setsid glob strpbrk)
+AC_CHECK_FUNCS(memmove lchown vsnprintf snprintf asprintf setsid glob strpbrk)
 AC_CHECK_FUNCS(strlcat strlcpy mtrace)
 
 AC_CACHE_CHECK([for working socketpair],rsync_cv_HAVE_SOCKETPAIR,[
@@ -231,6 +231,32 @@ if test x"$rsync_cv_HAVE_GETTIMEOFDAY_TZ" = x"yes"; then
     AC_DEFINE(HAVE_GETTIMEOFDAY_TZ)
 fi
 
+AC_CACHE_CHECK([for C99 vsnprintf],rsync_cv_HAVE_C99_VSNPRINTF,[
+AC_TRY_RUN([
+#include <sys/types.h>
+#include <stdarg.h>
+void foo(const char *format, ...) { 
+       va_list ap;
+       int len;
+       char buf[5];
+
+       va_start(ap, format);
+       len = vsnprintf(0, 0, format, ap);
+       va_end(ap);
+       if (len != 5) exit(1);
+
+       if (snprintf(buf, 3, "hello") != 5 || strcmp(buf, "he") != 0) exit(1);
+
+       exit(0);
+}
+main() { foo("hello"); }
+],
+rsync_cv_HAVE_C99_VSNPRINTF=yes,rsync_cv_HAVE_C99_VSNPRINTF=no,rsync_cv_HAVE_C99_VSNPRINTF=cross)])
+if test x"$rsync_cv_HAVE_C99_VSNPRINTF" = x"yes"; then
+    AC_DEFINE(HAVE_C99_VSNPRINTF)
+fi
+
+
 AC_CACHE_CHECK([for secure mkstemp],rsync_cv_HAVE_SECURE_MKSTEMP,[
 AC_TRY_RUN([#include <stdlib.h>
 #include <sys/types.h>
diff --git a/exclude.c b/exclude.c
index 5e4164ea..5351c30e 100644
--- a/exclude.c
+++ b/exclude.c
@@ -398,7 +398,7 @@ void add_cvs_excludes(void)
 		add_exclude(cvs_ignore_list[i], 0);
 
 	if ((p=getenv("HOME")) && strlen(p) < (MAXPATHLEN-12)) {
-		slprintf(fname,sizeof(fname), "%s/.cvsignore",p);
+		snprintf(fname,sizeof(fname), "%s/.cvsignore",p);
 		add_exclude_file(fname,0,0);
 	}
 
diff --git a/generator.c b/generator.c
index 48452381..767e86c7 100644
--- a/generator.c
+++ b/generator.c
@@ -56,7 +56,7 @@ static int skip_file(char *fname,
 
 		if (compare_dest != NULL) {
 			if (access(fname, 0) != 0) {
-				slprintf(fnamecmpdest,MAXPATHLEN,"%s/%s",
+				snprintf(fnamecmpdest,MAXPATHLEN,"%s/%s",
 						    compare_dest,fname);
 				fname = fnamecmpdest;
 			}
@@ -329,7 +329,7 @@ void recv_generator(char *fname,struct file_list *flist,int i,int f_out)
 	if ((statret == -1) && (compare_dest != NULL)) {
 		/* try the file at compare_dest instead */
 		int saveerrno = errno;
-		slprintf(fnamecmpbuf,MAXPATHLEN,"%s/%s",compare_dest,fname);
+		snprintf(fnamecmpbuf,MAXPATHLEN,"%s/%s",compare_dest,fname);
 		statret = link_stat(fnamecmpbuf,&st);
 		if (!S_ISREG(st.st_mode))
 			statret = -1;
diff --git a/io.c b/io.c
index 7aee3479..dac0744d 100644
--- a/io.c
+++ b/io.c
@@ -595,7 +595,7 @@ void io_printf(int fd, const char *format, ...)
 	int len;
 	
 	va_start(ap, format);
-	len = vslprintf(buf, sizeof(buf), format, ap);
+	len = vsnprintf(buf, sizeof(buf), format, ap);
 	va_end(ap);
 
 	if (len < 0) exit_cleanup(RERR_STREAMIO);
diff --git a/lib/snprintf.c b/lib/snprintf.c
index 8bbc67a3..0a52e176 100644
--- a/lib/snprintf.c
+++ b/lib/snprintf.c
@@ -49,41 +49,38 @@
  *    fixed handling of %.0f
  *    added test for HAVE_LONG_DOUBLE
  *
+ * tridge@samba.org, idra@samba.org, April 2001
+ *    got rid of fcvt code (twas buggy and made testing harder)
+ *    added C99 semantics
+ *
  **************************************************************/
 
+#ifndef NO_CONFIG_H /* for some tests */
 #include "config.h"
+#endif
 
+#ifdef HAVE_STRING_H
 #include <string.h>
-# include <ctype.h>
-#include <sys/types.h>
-
-#if !defined(HAVE_SNPRINTF) || !defined(HAVE_VSNPRINTF)
-
-/* Define this as a fall through, HAVE_STDARG_H is probably already set */
-
-#define HAVE_VARARGS_H
+#endif
 
-/* varargs declarations: */
+#ifdef HAVE_STRINGS_H
+#include <strings.h>
+#endif
+#ifdef HAVE_CTYPE_H
+#include <ctype.h>
+#endif
+#include <sys/types.h>
+#include <stdarg.h>
+#ifdef HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
 
-#if defined(HAVE_STDARG_H)
-# include <stdarg.h>
-# define HAVE_STDARGS    /* let's hope that works everywhere (mj) */
-# define VA_LOCAL_DECL   va_list ap
-# define VA_START(f)     va_start(ap, f)
-# define VA_SHIFT(v,t)  ;   /* no-op for ANSI */
-# define VA_END          va_end(ap)
+#if defined(HAVE_SNPRINTF) && defined(HAVE_VSNPRINTF) && defined(HAVE_C99_VSNPRINTF)
+/* only include stdio.h if we are not re-defining snprintf or vsnprintf */
+#include <stdio.h>
+ /* make the compiler happy with an empty file */
+ void dummy_snprintf(void) {} 
 #else
-# if defined(HAVE_VARARGS_H)
-#  include <varargs.h>
-#  undef HAVE_STDARGS
-#  define VA_LOCAL_DECL   va_list ap
-#  define VA_START(f)     va_start(ap)      /* f is ignored! */
-#  define VA_SHIFT(v,t) v = va_arg(ap,t)
-#  define VA_END        va_end(ap)
-# else
-/*XX ** NO VARARGS ** XX*/
-# endif
-#endif
 
 #ifdef HAVE_LONG_DOUBLE
 #define LDOUBLE long double
@@ -91,18 +88,21 @@
 #define LDOUBLE double
 #endif
 
-/*int snprintf (char *str, size_t count, const char *fmt, ...);*/
-/*int vsnprintf (char *str, size_t count, const char *fmt, va_list arg);*/
+#ifdef HAVE_LONG_LONG
+#define LLONG long long
+#else
+#define LLONG long
+#endif
 
-static void dopr (char *buffer, size_t maxlen, const char *format, 
-                  va_list args);
-static void fmtstr (char *buffer, size_t *currlen, size_t maxlen,
+static size_t dopr(char *buffer, size_t maxlen, const char *format, 
+		   va_list args);
+static void fmtstr(char *buffer, size_t *currlen, size_t maxlen,
 		    char *value, int flags, int min, int max);
-static void fmtint (char *buffer, size_t *currlen, size_t maxlen,
+static void fmtint(char *buffer, size_t *currlen, size_t maxlen,
 		    long value, int base, int min, int max, int flags);
-static void fmtfp (char *buffer, size_t *currlen, size_t maxlen,
+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, char c );
+static void dopr_outch(char *buffer, size_t *currlen, size_t maxlen, char c);
 
 /*
  * dopr(): poor man's version of doprintf
@@ -131,690 +131,807 @@ static void dopr_outch (char *buffer, size_t *currlen, size_t maxlen, char c );
 #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')
-#define MAX(p,q) ((p >= q) ? p : q)
+#define char_to_int(p) ((p)- '0')
+#ifndef MAX
+#define MAX(p,q) (((p) >= (q)) ? (p) : (q))
+#endif
 
-static void dopr (char *buffer, size_t maxlen, const char *format, va_list args)
+static size_t dopr(char *buffer, size_t maxlen, const char *format, va_list args)
 {
-  char ch;
-  long value;
-  LDOUBLE fvalue;
-  char *strvalue;
-  int min;
-  int max;
-  int state;
-  int flags;
-  int cflags;
-  size_t currlen;
-  
-  state = DP_S_DEFAULT;
-  currlen = flags = 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;
+	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;
+	currlen = flags = cflags = min = 0;
+	max = -1;
 	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:
-      /* Currently, we don't support Long Long, bummer */
-      switch (ch) 
-      {
-      case 'h':
-	cflags = DP_C_SHORT;
-	ch = *format++;
-	break;
-      case 'l':
-	cflags = DP_C_LONG;
-	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':
-	if (cflags == DP_C_SHORT) 
-	  value = va_arg (args, short int);
-	else if (cflags == DP_C_LONG)
-	  value = va_arg (args, long int);
-	else
-	  value = va_arg (args, int);
-	fmtint (buffer, &currlen, maxlen, value, 10, min, max, flags);
-	break;
-      case 'o':
-	flags |= DP_F_UNSIGNED;
-	if (cflags == DP_C_SHORT)
-	  value = va_arg (args, unsigned short int);
-	else if (cflags == DP_C_LONG)
-	  value = (long)va_arg (args, unsigned long int);
-	else
-	  value = (long)va_arg (args, unsigned int);
-	fmtint (buffer, &currlen, maxlen, value, 8, min, max, flags);
-	break;
-      case 'u':
-	flags |= DP_F_UNSIGNED;
-	if (cflags == DP_C_SHORT)
-	  value = va_arg (args, unsigned short int);
-	else if (cflags == DP_C_LONG)
-	  value = (long)va_arg (args, unsigned long int);
-	else
-	  value = (long)va_arg (args, unsigned int);
-	fmtint (buffer, &currlen, maxlen, value, 10, min, max, flags);
-	break;
-      case 'X':
-	flags |= DP_F_UP;
-      case 'x':
-	flags |= DP_F_UNSIGNED;
-	if (cflags == DP_C_SHORT)
-	  value = va_arg (args, unsigned short int);
-	else if (cflags == DP_C_LONG)
-	  value = (long)va_arg (args, unsigned long int);
-	else
-	  value = (long)va_arg (args, unsigned int);
-	fmtint (buffer, &currlen, maxlen, value, 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, flags, min, max);
-	break;
-      case 'p':
-	strvalue = va_arg (args, void *);
-	fmtint (buffer, &currlen, maxlen, (long) strvalue, 16, min, max, flags);
-	break;
-      case 'n':
-	if (cflags == DP_C_SHORT) 
-	{
-	  short int *num;
-	  num = va_arg (args, short int *);
-	  *num = currlen;
-        } 
-	else if (cflags == DP_C_LONG) 
-	{
-	  long int *num;
-	  num = va_arg (args, long int *);
-	  *num = (long int)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) 
-    buffer[currlen] = '\0';
-  else 
-    buffer[maxlen - 1] = '\0';
+	
+	while (state != DP_S_DONE) {
+		if (ch == '\0') 
+			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':
+				cflags = DP_C_LONG;
+				ch = *format++;
+				if (ch == 'l') {	/* It's a long long */
+					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':
+				if (cflags == DP_C_SHORT) 
+					value = va_arg (args, int);
+				else if (cflags == DP_C_LONG)
+					value = va_arg (args, long int);
+				else if (cflags == DP_C_LLONG)
+					value = va_arg (args, LLONG);
+				else
+					value = va_arg (args, int);
+				fmtint (buffer, &currlen, maxlen, value, 10, min, max, flags);
+				break;
+			case 'o':
+				flags |= DP_F_UNSIGNED;
+				if (cflags == DP_C_SHORT)
+					value = va_arg (args, unsigned int);
+				else if (cflags == DP_C_LONG)
+					value = (long)va_arg (args, unsigned long int);
+				else if (cflags == DP_C_LLONG)
+					value = (long)va_arg (args, unsigned LLONG);
+				else
+					value = (long)va_arg (args, unsigned int);
+				fmtint (buffer, &currlen, maxlen, value, 8, min, max, flags);
+				break;
+			case 'u':
+				flags |= DP_F_UNSIGNED;
+				if (cflags == DP_C_SHORT)
+					value = va_arg (args, unsigned int);
+				else if (cflags == DP_C_LONG)
+					value = (long)va_arg (args, unsigned long int);
+				else if (cflags == DP_C_LLONG)
+					value = (LLONG)va_arg (args, unsigned LLONG);
+				else
+					value = (long)va_arg (args, unsigned int);
+				fmtint (buffer, &currlen, maxlen, value, 10, min, max, flags);
+				break;
+			case 'X':
+				flags |= DP_F_UP;
+			case 'x':
+				flags |= DP_F_UNSIGNED;
+				if (cflags == DP_C_SHORT)
+					value = va_arg (args, unsigned int);
+				else if (cflags == DP_C_LONG)
+					value = (long)va_arg (args, unsigned long int);
+				else if (cflags == DP_C_LLONG)
+					value = (LLONG)va_arg (args, unsigned LLONG);
+				else
+					value = (long)va_arg (args, unsigned int);
+				fmtint (buffer, &currlen, maxlen, value, 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 == -1) {
+					max = strlen(strvalue);
+				}
+				if (min > 0 && max >= 0 && min > max) max = min;
+				fmtstr (buffer, &currlen, maxlen, strvalue, flags, min, max);
+				break;
+			case 'p':
+				strvalue = va_arg (args, void *);
+				fmtint (buffer, &currlen, maxlen, (long) strvalue, 16, min, max, flags);
+				break;
+			case 'n':
+				if (cflags == DP_C_SHORT) {
+					short int *num;
+					num = va_arg (args, short int *);
+					*num = currlen;
+				} else if (cflags == DP_C_LONG) {
+					long int *num;
+					num = va_arg (args, long int *);
+					*num = (long int)currlen;
+				} else if (cflags == DP_C_LLONG) {
+					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 (maxlen != 0) {
+		if (currlen < maxlen - 1) 
+			buffer[currlen] = '\0';
+		else if (maxlen > 0) 
+			buffer[maxlen - 1] = '\0';
+	}
+	
+	return currlen;
 }
 
-static void fmtstr (char *buffer, size_t *currlen, size_t maxlen,
+static void fmtstr(char *buffer, size_t *currlen, size_t maxlen,
 		    char *value, int flags, int min, int max)
 {
-  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;
-  }
+	int padlen, strln;     /* amount to pad */
+	int cnt = 0;
+
+#ifdef DEBUG_SNPRINTF
+	printf("fmtstr min=%d max=%d s=[%s]\n", min, max, value);
+#endif
+	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,
+static void fmtint(char *buffer, size_t *currlen, size_t maxlen,
 		    long value, int base, int min, int max, int flags)
 {
-  int signvalue = 0;
-  unsigned long 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 = ' ';
-  }
+	int signvalue = 0;
+	unsigned long 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 */
+	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);
+	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]);
+	/* 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;
-  }
+	/* Left Justified spaces */
+	while (spadlen < 0) {
+		dopr_outch (buffer, currlen, maxlen, ' ');
+		++spadlen;
+	}
 }
 
-static LDOUBLE abs_val (LDOUBLE value)
+static LDOUBLE abs_val(LDOUBLE value)
 {
-  LDOUBLE result = value;
+	LDOUBLE result = value;
 
-  if (value < 0)
-    result = -value;
-
-  return result;
+	if (value < 0)
+		result = -value;
+	
+	return result;
 }
 
-static LDOUBLE pow10 (int exp)
+static LDOUBLE POW10(int exp)
 {
-  LDOUBLE result = 1;
-
-  while (exp)
-  {
-    result *= 10;
-    exp--;
-  }
+	LDOUBLE result = 1;
+	
+	while (exp) {
+		result *= 10;
+		exp--;
+	}
   
-  return result;
+	return result;
 }
 
-static long round (LDOUBLE value)
+static LLONG ROUND(LDOUBLE value)
 {
-  long intpart;
+	LLONG intpart;
 
-  intpart = (long)value;
-  value = value - intpart;
-  if (value >= 0.5)
-    intpart++;
+	intpart = (LLONG)value;
+	value = value - intpart;
+	if (value >= 0.5) intpart++;
+	
+	return intpart;
+}
 
-  return intpart;
+/* a replacement for modf that doesn't need the math library. Should
+   be portable, but slow */
+static double my_modf(double x0, double *iptr)
+{
+	int i;
+	long l;
+	double x = x0;
+	double f = 1.0;
+
+	for (i=0;i<100;i++) {
+		l = (long)x;
+		if (l <= (x+1) && l >= (x-1)) break;
+		x *= 0.1;
+		f *= 10.0;
+	}
+
+	if (i == 100) {
+		/* yikes! the number is beyond what we can handle. What do we do? */
+		(*iptr) = 0;
+		return 0;
+	}
+
+	if (i != 0) {
+		double i2;
+		double ret;
+
+		ret = my_modf(x0-l*f, &i2);
+		(*iptr) = l*f + i2;
+		return ret;
+	} 
+
+	(*iptr) = l;
+	return x - (*iptr);
 }
 
+
 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;
+	int signvalue = 0;
+	double ufvalue;
+	char iconvert[311];
+	char fconvert[311];
+	int iplace = 0;
+	int fplace = 0;
+	int padlen = 0; /* amount to pad */
+	int zpadlen = 0; 
+	int caps = 0;
+	int index;
+	double intpart;
+	double fracpart;
+	double temp;
   
-  /* 
-   * 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;
+	/* 
+	 * 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;
 
-  /* We "cheat" by converting the fractional part to integer by
-   * multiplying by a factor of 10
-   */
-  fracpart = round ((pow10 (max)) * (ufvalue - intpart));
+	ufvalue = abs_val (fvalue);
 
-  if (fracpart >= pow10 (max))
-  {
-    intpart++;
-    fracpart -= pow10 (max);
-  }
+	if (fvalue < 0) {
+		signvalue = '-';
+	} else {
+		if (flags & DP_F_PLUS) { /* Do a sign (+/i) */
+			signvalue = '+';
+		} else {
+			if (flags & DP_F_SPACE)
+				signvalue = ' ';
+		}
+	}
 
-#ifdef DEBUG_SNPRINTF
-  printf("fmtfp: %g %d.%d min=%d max=%d\n", 
-	 (double)fvalue, intpart, fracpart, min, max);
+#if 0
+	if (flags & DP_F_UP) caps = 1; /* Should characters be upper case? */
 #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]);
+#if 0
+	 if (max == 0) ufvalue += 0.5; /* if max = 0 we must round */
+#endif
 
+	/* 
+	 * Sorry, we only support 16 digits past the decimal because of our 
+	 * conversion method
+	 */
+	if (max > 16)
+		max = 16;
+
+	/* We "cheat" by converting the fractional part to integer by
+	 * multiplying by a factor of 10
+	 */
+
+	temp = ufvalue;
+	my_modf(temp, &intpart);
+
+	fracpart = ROUND((POW10(max)) * (ufvalue - intpart));
+	
+	if (fracpart >= POW10(max)) {
+		intpart++;
+		fracpart -= POW10(max);
+	}
+
+
+	/* Convert integer part */
+	do {
+		temp = intpart;
+		my_modf(intpart*0.1, &intpart);
+		temp = temp*0.1;
+		index = (int) ((temp -intpart +0.05)* 10.0);
+		/* index = (int) (((double)(temp*0.1) -intpart +0.05) *10.0); */
+		/* printf ("%llf, %f, %x\n", temp, intpart, index); */
+		iconvert[iplace++] =
+			(caps? "0123456789ABCDEF":"0123456789abcdef")[index];
+	} while (intpart && (iplace < 311));
+	if (iplace == 311) iplace--;
+	iconvert[iplace] = 0;
+
+	/* Convert fractional part */
+	if (fracpart)
+	{
+		do {
+			temp = fracpart;
+			my_modf(fracpart*0.1, &fracpart);
+			temp = temp*0.1;
+			index = (int) ((temp -fracpart +0.05)* 10.0);
+			/* index = (int) ((((temp/10) -fracpart) +0.05) *10); */
+			/* printf ("%lf, %lf, %ld\n", temp, fracpart, index); */
+			fconvert[fplace++] =
+			(caps? "0123456789ABCDEF":"0123456789abcdef")[index];
+		} while(fracpart && (fplace < 311));
+		if (fplace == 311) 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);
+	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;
-  }
+	/*
+	 * 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, char c)
+static void dopr_outch(char *buffer, size_t *currlen, size_t maxlen, char c)
 {
-  if (*currlen < maxlen)
-    buffer[(*currlen)++] = c;
+	if (*currlen < maxlen) {
+		buffer[(*currlen)] = c;
+	}
+	(*currlen)++;
 }
-#endif /* !defined(HAVE_SNPRINTF) || !defined(HAVE_VSNPRINTF) */
 
-#ifndef HAVE_VSNPRINTF
+#if !defined(HAVE_VSNPRINTF) || !defined(HAVE_C99_VSNPRINTF)
  int vsnprintf (char *str, size_t count, const char *fmt, va_list args)
 {
-  str[0] = 0;
-  dopr(str, count, fmt, args);
-  return(strlen(str));
+	return dopr(str, count, fmt, args);
 }
-#endif /* !HAVE_VSNPRINTF */
-
-#ifndef HAVE_SNPRINTF
-/* VARARGS3 */
-#ifdef HAVE_STDARGS
- int snprintf (char *str,size_t count,const char *fmt,...)
-#else
- int snprintf (va_alist) va_dcl
 #endif
+
+#if !defined(HAVE_SNPRINTF) || !defined(HAVE_C99_VSNPRINTF)
+ int snprintf(char *str,size_t count,const char *fmt,...)
 {
-#ifndef HAVE_STDARGS
-  char *str;
-  size_t count;
-  char *fmt;
-#endif
-  VA_LOCAL_DECL;
+	size_t ret;
+	va_list ap;
     
-  VA_START (fmt);
-  VA_SHIFT (str, char *);
-  VA_SHIFT (count, size_t );
-  VA_SHIFT (fmt, char *);
-  (void) vsnprintf(str, count, fmt, ap);
-  VA_END;
-  return(strlen(str));
+	va_start(ap, fmt);
+	ret = vsnprintf(str, count, fmt, ap);
+	va_end(ap);
+	return ret;
 }
+#endif
 
+#endif 
 
-#else
- /* keep compilers happy about empty files */
- void dummy_snprintf(void) {}
-#endif /* !HAVE_SNPRINTF */
+#ifndef HAVE_VASPRINTF
+ int vasprintf(char **ptr, const char *format, va_list ap)
+{
+	int ret;
+	
+	ret = vsnprintf(NULL, 0, format, ap);
+	if (ret <= 0) return ret;
 
-#ifdef TEST_SNPRINTF
-#ifndef LONG_STRING
-#define LONG_STRING 1024
+	(*ptr) = (char *)malloc(ret+1);
+	if (!*ptr) return -1;
+	ret = vsnprintf(*ptr, ret+1, format, ap);
+
+	return ret;
+}
+#endif
+
+
+#ifndef HAVE_ASPRINTF
+ int asprintf(char **ptr, const char *format, ...)
+{
+	va_list ap;
+	int ret;
+	
+	va_start(ap, format);
+	ret = vasprintf(ptr, format, ap);
+	va_end(ap);
+
+	return ret;
+}
 #endif
+
+#ifdef TEST_SNPRINTF
+
+ int sprintf(char *str,const char *fmt,...);
+
  int main (void)
 {
-  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",
-    NULL
-  };
-  long int_nums[] = { -1, 134, 91340, 341, 0203, 0};
-  int x, y;
-  int fail = 0;
-  int num = 0;
-
-  printf ("Testing snprintf format codes against system sprintf...\n");
-
-  for (x = 0; fp_fmt[x] != NULL ; 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\tsnprintf = %s\n\tsprintf  = %s\n", 
-	    fp_fmt[x], buf1, buf2);
-	fail++;
-      }
-      num++;
-    }
-
-  for (x = 0; int_fmt[x] != NULL ; x++)
-    for (y = 0; int_nums[y] != 0 ; y++)
-    {
-      snprintf (buf1, sizeof (buf1), int_fmt[x], int_nums[y]);
-      sprintf (buf2, int_fmt[x], int_nums[y]);
-      if (strcmp (buf1, buf2))
-      {
-	printf("snprintf doesn't match Format: %s\n\tsnprintf = %s\n\tsprintf  = %s\n", 
-	    int_fmt[x], buf1, buf2);
-	fail++;
-      }
-      num++;
-    }
-  printf ("%d tests failed out of %d.\n", fail, num);
+	char buf1[1024];
+	char buf2[1024];
+	char *fp_fmt[] = {
+		"%1.1f",
+		"%-1.5f",
+		"%1.5f",
+		"%123.9f",
+		"%10.5f",
+		"% 10.5f",
+		"%+22.9f",
+		"%+4.9f",
+		"%01.3f",
+		"%4f",
+		"%3.1f",
+		"%3.2f",
+		"%.0f",
+		"%f",
+		"-16.16f",
+		NULL
+	};
+	double fp_nums[] = { 6442452944.1234, -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",
+		"%d",
+		NULL
+	};
+	long int_nums[] = { -1, 134, 91340, 341, 0203, 0};
+	char *str_fmt[] = {
+		"10.5s",
+		"5.10s",
+		"10.1s",
+		"0.10s",
+		"10.0s",
+		"1.10s",
+		"%s",
+		"%.1s",
+		"%.10s",
+		"%10s",
+		NULL
+	};
+	char *str_vals[] = {"hello", "a", "", "a longer string", NULL};
+	int x, y;
+	int fail = 0;
+	int num = 0;
+
+	printf ("Testing snprintf format codes against system sprintf...\n");
+
+	for (x = 0; fp_fmt[x] ; x++) {
+		for (y = 0; fp_nums[y] != 0 ; y++) {
+			int l1 = snprintf(NULL, 0, fp_fmt[x], fp_nums[y]);
+			int l2 = 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\tsnprintf = [%s]\n\t sprintf = [%s]\n", 
+				       fp_fmt[x], buf1, buf2);
+				fail++;
+			}
+			if (l1 != l2) {
+				printf("snprintf l1 != l2 (%d %d) %s\n", l1, l2, fp_fmt[x]);
+				fail++;
+			}
+			num++;
+		}
+	}
+
+	for (x = 0; int_fmt[x] ; x++) {
+		for (y = 0; int_nums[y] != 0 ; y++) {
+			int l1 = snprintf(NULL, 0, int_fmt[x], int_nums[y]);
+			int l2 = snprintf(buf1, sizeof(buf1), int_fmt[x], int_nums[y]);
+			sprintf (buf2, int_fmt[x], int_nums[y]);
+			if (strcmp (buf1, buf2)) {
+				printf("snprintf doesn't match Format: %s\n\tsnprintf = [%s]\n\t sprintf = [%s]\n", 
+				       int_fmt[x], buf1, buf2);
+				fail++;
+			}
+			if (l1 != l2) {
+				printf("snprintf l1 != l2 (%d %d) %s\n", l1, l2, int_fmt[x]);
+				fail++;
+			}
+			num++;
+		}
+	}
+
+	for (x = 0; str_fmt[x] ; x++) {
+		for (y = 0; str_vals[y] != 0 ; y++) {
+			int l1 = snprintf(NULL, 0, str_fmt[x], str_vals[y]);
+			int l2 = snprintf(buf1, sizeof(buf1), str_fmt[x], str_vals[y]);
+			sprintf (buf2, str_fmt[x], str_vals[y]);
+			if (strcmp (buf1, buf2)) {
+				printf("snprintf doesn't match Format: %s\n\tsnprintf = [%s]\n\t sprintf = [%s]\n", 
+				       str_fmt[x], buf1, buf2);
+				fail++;
+			}
+			if (l1 != l2) {
+				printf("snprintf l1 != l2 (%d %d) %s\n", l1, l2, str_fmt[x]);
+				fail++;
+			}
+			num++;
+		}
+	}
+
+	printf ("%d tests failed out of %d.\n", fail, num);
+
+	printf("seeing how many digits we support\n");
+	{
+		double v0 = 0.12345678901234567890123456789012345678901;
+		for (x=0; x<100; x++) {
+			snprintf(buf1, sizeof(buf1), "%1.1f", v0*pow(10, x));
+			sprintf(buf2,                "%1.1f", v0*pow(10, x));
+			if (strcmp(buf1, buf2)) {
+				printf("we seem to support %d digits\n", x-1);
+				break;
+			}
+		}
+	}
+
+	return 0;
 }
 #endif /* SNPRINTF_TEST */
-
diff --git a/log.c b/log.c
index 3e4d65aa..64e97b91 100644
--- a/log.c
+++ b/log.c
@@ -286,7 +286,7 @@ void rprintf(enum logcode code, const char *format, ...)
 	int len;
 
 	va_start(ap, format);
-	len = vslprintf(buf, sizeof(buf), format, ap);
+	len = vsnprintf(buf, sizeof(buf), format, ap);
 	va_end(ap);
 
 	if (len > sizeof(buf)-1) exit_cleanup(RERR_MESSAGEIO);
@@ -311,7 +311,7 @@ void rsyserr(enum logcode code, int errcode, const char *format, ...)
         char *sysmsg;
 
 	va_start(ap, format);
-	len = vslprintf(buf, sizeof(buf), format, ap);
+	len = vsnprintf(buf, sizeof(buf), format, ap);
 	va_end(ap);
 
 	if (len > sizeof(buf)-1) exit_cleanup(RERR_MESSAGEIO);
@@ -392,18 +392,18 @@ static void log_formatted(enum logcode code,
 		case 'h': if (am_daemon) n = client_name(0); break;
 		case 'a': if (am_daemon) n = client_addr(0); break;
 		case 'l': 
-			slprintf(buf2,sizeof(buf2),"%.0f", 
+			snprintf(buf2,sizeof(buf2),"%.0f", 
 				 (double)file->length); 
 			n = buf2;
 			break;
 		case 'p': 
-			slprintf(buf2,sizeof(buf2),"%d", 
+			snprintf(buf2,sizeof(buf2),"%d", 
 				 (int)getpid()); 
 			n = buf2;
 			break;
 		case 'o': n = op; break;
 		case 'f': 
-			slprintf(buf2, sizeof(buf2), "%s/%s", 
+			snprintf(buf2, sizeof(buf2), "%s/%s", 
 				 file->basedir?file->basedir:"", 
 				 f_name(file));
 			clean_fname(buf2);
@@ -422,7 +422,7 @@ static void log_formatted(enum logcode code,
 				b = stats.total_read - 
 					initial_stats->total_read;
 			}
-			slprintf(buf2,sizeof(buf2),"%.0f", (double)b); 
+			snprintf(buf2,sizeof(buf2),"%.0f", (double)b); 
 			n = buf2;
 			break;
 		case 'c': 
@@ -433,7 +433,7 @@ static void log_formatted(enum logcode code,
 				b = stats.total_read - 
 					initial_stats->total_read;
 			}
-			slprintf(buf2,sizeof(buf2),"%.0f", (double)b); 
+			snprintf(buf2,sizeof(buf2),"%.0f", (double)b); 
 			n = buf2;
 			break;
 		}
diff --git a/options.c b/options.c
index 4c34e4ca..bbc32190 100644
--- a/options.c
+++ b/options.c
@@ -327,7 +327,7 @@ static int check_refuse_options(char *ref, int opt)
 	while ((p = strstr(ref,name))) {
 		if ((p==ref || p[-1]==' ') &&
 		    (p[len] == ' ' || p[len] == 0)) {
-			slprintf(err_buf,sizeof(err_buf),
+			snprintf(err_buf,sizeof(err_buf),
 				 "The '%s' option is not supported by this server\n", name);
 			return 1;
 		}
@@ -418,7 +418,7 @@ int parse_arguments(int *argc, const char ***argv, int frommain)
                          * rprintf?  Everybody who gets this message
                          * ought to send it to the client and also to
                          * the logs. */
-			slprintf(err_buf,sizeof(err_buf),
+			snprintf(err_buf,sizeof(err_buf),
                                  "hard links are not supported on this %s\n",
 				 am_server ? "server" : "client");
 			rprintf(FERROR,"ERROR: hard links not supported on this platform\n");
@@ -471,7 +471,7 @@ int parse_arguments(int *argc, const char ***argv, int frommain)
 		default:
                         /* FIXME: If --daemon is specified, then errors for later
                          * parameters seem to disappear. */
-                        slprintf(err_buf, sizeof(err_buf),
+                        snprintf(err_buf, sizeof(err_buf),
                                  "%s%s: %s\n",
                                  am_server ? "on remote machine: " : "",
                                  poptBadOption(pc, POPT_BADOPTION_NOALIAS),
@@ -568,22 +568,22 @@ void server_options(char **args,int *argc)
 	if (x != 1) args[ac++] = argstr;
 
 	if (block_size != BLOCK_SIZE) {
-		slprintf(bsize,sizeof(bsize),"-B%d",block_size);
+		snprintf(bsize,sizeof(bsize),"-B%d",block_size);
 		args[ac++] = bsize;
 	}    
 
 	if (max_delete && am_sender) {
-		slprintf(mdelete,sizeof(mdelete),"--max-delete=%d",max_delete);
+		snprintf(mdelete,sizeof(mdelete),"--max-delete=%d",max_delete);
 		args[ac++] = mdelete;
 	}    
 
 	if (io_timeout) {
-		slprintf(iotime,sizeof(iotime),"--timeout=%d",io_timeout);
+		snprintf(iotime,sizeof(iotime),"--timeout=%d",io_timeout);
 		args[ac++] = iotime;
 	}    
 
 	if (bwlimit) {
-		slprintf(bw,sizeof(bw),"--bwlimit=%d",bwlimit);
+		snprintf(bw,sizeof(bw),"--bwlimit=%d",bwlimit);
 		args[ac++] = bw;
 	}
 
@@ -602,7 +602,7 @@ void server_options(char **args,int *argc)
 		args[ac++] = "--size-only";
 
 	if (modify_window_set) {
-	        slprintf(mwindow,sizeof(mwindow),"--modify-window=%d",
+	        snprintf(mwindow,sizeof(mwindow),"--modify-window=%d",
 			 modify_window);
 		args[ac++] = mwindow;
 	}
diff --git a/receiver.c b/receiver.c
index 0249d8a4..2f679b17 100644
--- a/receiver.c
+++ b/receiver.c
@@ -179,7 +179,7 @@ static int get_tmpname(char *fnametmp, char *fname)
 			rprintf(FERROR,"filename too long\n");
 			return 0;
 		}
-		slprintf(fnametmp,MAXPATHLEN, "%s/.%s.XXXXXX",tmpdir,f);
+		snprintf(fnametmp,MAXPATHLEN, "%s/.%s.XXXXXX",tmpdir,f);
 		return 1;
 	} 
 
@@ -192,11 +192,11 @@ static int get_tmpname(char *fnametmp, char *fname)
 
 	if (f) {
 		*f = 0;
-		slprintf(fnametmp,MAXPATHLEN,"%s/.%s.XXXXXX",
+		snprintf(fnametmp,MAXPATHLEN,"%s/.%s.XXXXXX",
 			 fname,f+1);
 		*f = '/';
 	} else {
-		slprintf(fnametmp,MAXPATHLEN,".%s.XXXXXX",fname);
+		snprintf(fnametmp,MAXPATHLEN,".%s.XXXXXX",fname);
 	}
 
 	return 1;
@@ -372,7 +372,7 @@ int recv_files(int f_in,struct file_list *flist,char *local_name,int f_gen)
 
 		if ((fd1 == -1) && (compare_dest != NULL)) {
 			/* try the file at compare_dest instead */
-			slprintf(fnamecmpbuf,MAXPATHLEN,"%s/%s",
+			snprintf(fnamecmpbuf,MAXPATHLEN,"%s/%s",
 						compare_dest,fname);
 			fnamecmp = fnamecmpbuf;
 			fd1 = do_open(fnamecmp, O_RDONLY, 0);
diff --git a/rsync.c b/rsync.c
index 5ee50c08..3e50f38d 100644
--- a/rsync.c
+++ b/rsync.c
@@ -91,7 +91,7 @@ int delete_file(char *fname)
 		if (strcmp(dname,".")==0 ||
 		    strcmp(dname,"..")==0)
 			continue;
-		slprintf(buf, sizeof(buf), "%s/%s", fname, dname);
+		snprintf(buf, sizeof(buf), "%s/%s", fname, dname);
 		if (verbose > 0)
 			rprintf(FINFO,"deleting %s\n", buf);
 		if (delete_file(buf) != 0) {
diff --git a/socket.c b/socket.c
index dd6613ae..7865e31e 100644
--- a/socket.c
+++ b/socket.c
@@ -32,7 +32,7 @@ static int establish_proxy_connection(int fd, char *host, int port)
 	char buffer[1024];
 	char *cp;
 
-	slprintf(buffer, sizeof(buffer), "CONNECT %s:%d HTTP/1.0\r\n\r\n", host, port);
+	snprintf(buffer, sizeof(buffer), "CONNECT %s:%d HTTP/1.0\r\n\r\n", host, port);
 	if (write(fd, buffer, strlen(buffer)) != strlen(buffer)) {
 		rprintf(FERROR, "failed to write to proxy: %s\n",
 			strerror(errno));
diff --git a/util.c b/util.c
index d917f07b..df2af3e8 100644
--- a/util.c
+++ b/util.c
@@ -558,10 +558,7 @@ void glob_expand(char *base1, char **argv, int *argc, int maxargs)
 	s = strdup(s);
 	if (!s) out_of_memory("glob_expand");
 
-	base = (char *)malloc(strlen(base1)+3);
-	if (!base) out_of_memory("glob_expand");
-
-	sprintf(base," %s/", base1);
+	if (asprintf(&base," %s/", base1) <= 0) out_of_memory("glob_expand");
 
 	q = s;
 	while ((p = strstr(q,base)) && ((*argc) < maxargs)) {
@@ -588,33 +585,6 @@ void strlower(char *s)
 	}
 }
 
-/* this is like vsnprintf but it always null terminates, so you
-   can fit at most n-1 chars in */
-int vslprintf(char *str, int n, const char *format, va_list ap)
-{
-	int ret = vsnprintf(str, n, format, ap);
-	if (ret >= n || ret < 0) {
-		str[n-1] = 0;
-		return -1;
-	}
-	str[ret] = 0;
-	return ret;
-}
-
-
-/* like snprintf but always null terminates */
-int slprintf(char *str, int n, char *format, ...)
-{
-	va_list ap;  
-	int ret;
-
-	va_start(ap, format);
-	ret = vslprintf(str,n,format,ap);
-	va_end(ap);
-	return ret;
-}
-
-
 void *Realloc(void *p, int size)
 {
 	if (!p) return (void *)malloc(size);
@@ -987,9 +957,9 @@ int _Insure_trap_error(int a1, int a2, int a3, int a4, int a5, int a6)
 {
 	static int (*fn)();
 	int ret;
-	char cmd[1024];
+	char *cmd;
 
-	sprintf(cmd, "/usr/X11R6/bin/xterm -display :0 -T Panic -n Panic -e /bin/sh -c 'cat /tmp/ierrs.*.%d ; gdb /proc/%d/exe %d'", 
+	asprintf(&cmd, "/usr/X11R6/bin/xterm -display :0 -T Panic -n Panic -e /bin/sh -c 'cat /tmp/ierrs.*.%d ; gdb /proc/%d/exe %d'", 
 		getpid(), getpid(), getpid());
 
 	if (!fn) {
@@ -1002,6 +972,8 @@ int _Insure_trap_error(int a1, int a2, int a3, int a4, int a5, int a6)
 
 	system(cmd);
 
+	free(cmd);
+
 	return ret;
 }
 #endif