--- /dev/null
+/**************************************************************************
+ * Copyright 1994-2000 Patrick Powell, San Diego, CA <papowell@astart.com>
+ *
+ * Modified for Netatalk 2002/02/12 Burkhard Schmidt <bs@cpfs.mpg.de>
+ **************************************************************************/
+
+/*
+ Overview:
+
+ plp_snprintf( char *buffer, int len, const char *format,...)
+ plp_unsafe_snprintf( char *buffer, int len, const char *format,...)
+ its horribly unsafe companion that does NOT protect you from
+ the printing of evil control characters, but may be necessary
+ See the man page documentation below
+
+ This version of snprintf was developed originally for printing
+ on a motley collection of specialized hardware that had NO IO
+ library. Due to contractual restrictions, a clean room implementation
+ of the printf() code had to be developed.
+
+ The method chosen for printf was to be as paranoid as possible,
+ as these platforms had NO memory protection, and very small
+ address spaces. This made it possible to try to print
+ very long strings, i.e. - all of memory, very easily. To guard
+ against this, all printing was done via a buffer, generous enough
+ to hold strings, but small enough to protect against overruns,
+ etc.
+
+ Strangely enough, this proved to be of immense importance when
+ SPRINTFing to a buffer on a stack... The rest, of course, is
+ well known, as buffer overruns in the stack are a common way to
+ do horrible things to operating systems, security, etc etc.
+
+ This version of snprintf is VERY limited by modern standards.
+
+ Revision History:
+ First Released Version - 1994. This version had NO comments.
+ First Released Version - 1994. This version had NO comments.
+ Second Major Released Version - Tue May 23 10:43:44 PDT 2000
+ Configuration and other items changed. Read this doc.
+ Treat this as a new version.
+
+ COPYRIGHT AND TERMS OF USE:
+
+ You may use, copy, distribute, or otherwise incorporate this software
+ and documentation into any product or other item, provided that
+ the copyright in the documentation and source code as well as the
+ source code generated constant strings in the object, executable
+ or other code remain in place and are present in executable modules
+ or objects.
+
+ You may modify this code as appropriate to your usage; however the
+ modified version must be identified by changing the various source
+ and object code identification strings as is appropriately noted
+ in the source code.
+
+ The next include line is expected to work in conjunction with the
+ GNU CONFIGURE utility. You should define the following macros
+ appropriately:
+
+ HAVE_STDARG_H - if the <stdargs.h> include file is available
+ HAVE_VARARG_H - if the <varargs.h> include file is available
+
+ HAVE_STRERROR - if the strerror() routine is available.
+ If it is not available, then examine the lines containing
+ the tests below. You may need to fiddle with HAVE_SYS_NERR
+ HAVE_SYS_ERRLIST
+ HAVE_DECL_SYS_ERRLIST
+ HAVE_SYS_NERR
+ HAVE_DECL_SYS_NERR
+
+ HAVE_QUAD_T - if the quad_t type is defined
+ HAVE_LONG_LONG - if the long long type is defined
+ HAVE_LONG_DOUBLE - if the long double type is defined
+
+ If you are using the GNU configure (autoconf) facility, add the
+ following line to the configure.in file, to force checking for the
+ quad_t and long long data types:
+
+
+ AC_CHECK_FUNCS(strerror);
+ AC_CACHE_CHECK(for errno,
+ ac_cv_errno,
+ [
+ AC_TRY_LINK(,[extern int errno; return (errno);],
+ ac_cv_errno=yes, ac_cv_errno=no)
+ ])
+ if test "$ac_cv_errno" = yes; then
+ AC_DEFINE(HAVE_ERRNO)
+ AC_CACHE_CHECK(for errno declaration,
+ ac_cv_decl_errno,
+ [
+ AC_TRY_COMPILE([
+ #include <stdio.h>
+ #ifdef HAVE_STDLIB_H
+ #include <stdlib.h>
+ #endif
+ #ifdef HAVE_UNISTD_H
+ #include <unistd.h>
+ #endif
+ #ifdef HAVE_ERRNO_H
+ #include <errno.h>
+ ],[return(sys_nerr);],
+ ac_cv_decl_errno=yes, ac_cv_decl_errno=no)
+ ])
+ if test "$ac_cv_decl_errno" = yes; then
+ AC_DEFINE(HAVE_DECL_ERRNO)
+ fi;
+ fi
+
+ AC_CACHE_CHECK(for sys_nerr,
+ ac_cv_sys_nerr,
+ [
+ AC_TRY_LINK(,[extern int sys_nerr; return (sys_nerr);],
+ ac_cv_sys_nerr=yes, ac_cv_sys_nerr=no)
+ ])
+ if test "$ac_cv_sys_nerr" = yes; then
+ AC_DEFINE(HAVE_SYS_NERR)
+ AC_CACHE_CHECK(for sys_nerr declaration,
+ ac_cv_decl_sys_nerr,
+ [
+ AC_TRY_COMPILE([
+ #include <stdio.h>
+ #ifdef HAVE_STDLIB_H
+ #include <stdlib.h>
+ #endif
+ #ifdef HAVE_UNISTD_H
+ #include <unistd.h>
+ #endif],[return(sys_nerr);],
+ ac_cv_decl_sys_nerr_def=yes, ac_cv_decl_sys_nerr_def=no)
+ ])
+ if test "$ac_cv_decl_sys_nerr" = yes; then
+ AC_DEFINE(HAVE_DECL_SYS_NERR)
+ fi
+ fi
+
+
+ AC_CACHE_CHECK(for sys_errlist array,
+ ac_cv_sys_errlist,
+ [AC_TRY_LINK(,[extern char *sys_errlist[];
+ sys_errlist[0];],
+ ac_cv_sys_errlist=yes, ac_cv_sys_errlist=no)
+ ])
+ if test "$ac_cv_sys_errlist" = yes; then
+ AC_DEFINE(HAVE_SYS_ERRLIST)
+ AC_CACHE_CHECK(for sys_errlist declaration,
+ ac_cv_sys_errlist_def,
+ [AC_TRY_COMPILE([
+ #include <stdio.h>
+ #include <errno.h>
+ #ifdef HAVE_STDLIB_H
+ #include <stdlib.h>
+ #endif
+ #ifdef HAVE_UNISTD_H
+ #include <unistd.h>
+ #endif],[char *s = sys_errlist[0]; return(*s);],
+ ac_cv_decl_sys_errlist=yes, ac_cv_decl_sys_errlist=no)
+ ])
+ if test "$ac_cv_decl_sys_errlist" = yes; then
+ AC_DEFINE(HAVE_DECL_SYS_ERRLIST)
+ fi
+ fi
+
+
+
+ AC_CACHE_CHECK(checking for long long,
+ ac_cv_long_long,
+ [
+ AC_TRY_COMPILE([
+ #include <stdio.h>
+ #include <sys/types.h>
+ ], [printf("%d",sizeof(long long));],
+ ac_cv_long_long=yes, ac_cv_long_long=no)
+ ])
+ if test $ac_cv_long_long = yes; then
+ AC_DEFINE(HAVE_LONG_LONG)
+ fi
+
+ AC_CACHE_CHECK(checking for long double,
+ ac_cv_long_double,
+ [
+ AC_TRY_COMPILE([
+ #include <stdio.h>
+ #include <sys/types.h>
+ ], [printf("%d",sizeof(long double));],
+ ac_cv_long_double=yes, ac_cv_long_double=no)
+ ])
+ if test $ac_cv_long_double = yes; then
+ AC_DEFINE(HAVE_LONG_DOUBLE)
+ fi
+
+ AC_CACHE_CHECK(checking for quad_t,
+ ac_cv_quad_t,
+ [
+ AC_TRY_COMPILE([
+ #include <stdio.h>
+ #include <sys/types.h>
+ ], [printf("%d",sizeof(quad_t));],
+ ac_cv_quad_t=yes, ac_cv_quad_t=no)
+ ])
+ if test $ac_cv_quad_t = yes; then
+ AC_DEFINE(HAVE_QUAD_T)
+ fi
+
+
+
+NAME
+ plp_snprintf, plp_vsnprintf - formatted output conversion
+
+SYNOPSIS
+ #include <stdio.h>
+ #include <stdarg.h>
+
+ int
+ plp_snprintf(const char *format, size_t size, va_list ap);
+ int
+ plp_unsafe_snprintf(const char *format, size_t size, va_list ap);
+
+ AKA snprintf and unsafe_snprintf in the documentation below
+
+ int
+ vsnprintf(char *str, size_t size, const char *format, va_list ap);
+ int
+ unsafe_vsnprintf(char *str, size_t size, const char *format, va_list ap);
+
+ AKA vsnprintf and unsafe_vsnprintf in the documentation below
+
+ (Multithreaded Safe)
+
+DESCRIPTION
+ The printf() family of functions produces output according to
+ a format as described below. Snprintf(), and vsnprintf()
+ write to the character string str. These functions write the
+ output under the control of a format string that specifies
+ how subsequent arguments (or arguments accessed via the
+ variable-length argument facilities of stdarg(3)) are converted
+ for output. These functions return the number of characters
+ printed (not including the trailing `\0' used to end output
+ to strings). Snprintf() and vsnprintf() will write at most
+ size-1 of the characters printed into the output string (the
+ size'th character then gets the terminating `\0'); if the
+ return value is greater than or equal to the size argument,
+ the string was too short and some of the printed characters
+ were discarded. The size or str may be given as zero to find
+ out how many characters are needed; in this case, the str
+ argument is ignored.
+
+ By default, the snprintf function will not format control
+ characters (except new line and tab) in strings. This is a
+ safety feature that has proven to be extremely critical when
+ using snprintf for secure applications and when debugging.
+ If you MUST have control characters formatted or printed,
+ then use the unsafe_snprintf() and unsafe_vsnprintf() and on
+ your own head be the consequences. You have been warned.
+
+ There is one exception to the comments above, and that is
+ the "%c" (character) format. It brutally assumes that the
+ user will have performed the necessary 'isprint()' or other
+ checks and uses the integer value as a character.
+
+ The format string is composed of zero or more directives:
+ ordinary characters (not %), which are copied unchanged to
+ the output stream; and conversion specifications, each
+ of which results in fetching zero or more subsequent arguments.
+ Each conversion specification is introduced by the character
+ %. The arguments must correspond properly (after type promotion)
+ with the conversion specifier. After the %, the following
+ appear in sequence:
+
+ o Zero or more of the following flags:
+
+ - A zero `0' character specifying zero padding. For
+ all conversions except n, the converted value is padded
+ on the left with zeros rather than blanks. If a
+ precision is given with a numeric conversion (d, i,
+ o, u, i, x, and X), the `0' flag is ignored.
+
+ - A negative field width flag `-' indicates the converted
+ value is to be left adjusted on the field boundary. Except
+ for n conversions, the converted value is padded on
+ the right with blanks, rather than on the left with
+ blanks or zeros. A `-' overrides a `0' if both are
+ given.
+
+ - A space, specifying that a blank should be left before
+ a positive number produced by a signed conversion (d, e, E, f,
+ g, G, or i).
+
+ - A `+' character specifying that a sign always be placed
+ before a number produced by a signed conversion. A `+' overrides
+ a space if both are used.
+
+ o An optional decimal digit string specifying a minimum
+ field width. If the converted value has fewer
+ characters than the field width, it will be padded
+ with spaces on the left (or right, if the
+ left-adjustment flag has been given) to fill out
+ the field width.
+
+ o An optional precision, in the form of a period `.' followed
+ by an optional digit string. If the digit string
+ is omitted, the precision is taken as zero. This
+ gives the minimum number of digits to appear for
+ d, i, o, u, x, and X conversions, the number of
+ digits to appear after the decimal-point for e,
+ E, and f conversions, the maximum number of
+ significant digits for g and G conversions, or
+ the maximum number of characters to be printed
+ from a string for s conversions.
+
+ o The optional character h, specifying that a following d,
+ i, o, u, x, or X conversion corresponds to a short
+ int or unsigned short int argument, or that a
+ following n conversion corresponds to a pointer
+ to a short int argument.
+
+ o The optional character l (ell) specifying that a following
+ d, i, o, u, x, or X conversion applies to a pointer
+ to a long int or unsigned long int argument, or
+ that a following n conversion corresponds to a
+ pointer to a long int argument.
+
+ o The optional character q, specifying that a following d,
+ i, o, u, x, or X conversion corresponds to a quad_t
+ or u_quad_t argument, or that a following n
+ conversion corresponds to a quad_t argument.
+ This value is always printed in HEX notation. Tough.
+ quad_t's are an OS system implementation, and should
+ not be allowed.
+
+ o The character L specifying that a following e, E, f, g,
+ or G conversion corresponds to a long double
+ argument.
+
+ o A character that specifies the type of conversion to be applied.
+
+
+ A field width or precision, or both, may be indicated by an asterisk `*'
+ instead of a digit string. In this case, an int argument supplies the
+ field width or precision. A negative field width is treated as a left
+ adjustment flag followed by a positive field width; a negative precision
+ is treated as though it were missing.
+
+ The conversion specifiers and their meanings are:
+
+ diouxX The int (or appropriate variant) argument is converted to signed
+ decimal (d and i), unsigned octal (o), unsigned decimal
+ (u), or unsigned hexadecimal (x and X) notation. The
+ letters abcdef are used for x conversions; the letters
+ ABCDEF are used for X conversions. The precision, if
+ any, gives the minimum number of digits that must
+ appear; if the converted value requires fewer digits,
+ it is padded on the left with zeros.
+
+ eE The double argument is rounded and converted in the style
+ [-]d.ddde+-dd where there is one digit before the decimal-point
+ character and the number of digits after it is equal
+ to the precision; if the precision is missing, it is
+ taken as 6; if the precision is zero, no decimal-point
+ character appears. An E conversion uses the letter
+ E (rather than e) to introduce the exponent.
+ The exponent always contains at least two digits; if
+ the value is zero, the exponent is 00.
+
+ f The double argument is rounded and converted to decimal notation
+ in the style [-]ddd.ddd, where the number of digits after the
+ decimal-point character is equal to the precision specification.
+ If the precision is missing, it is taken as 6; if the precision
+ is explicitly zero, no decimal-point character appears. If a
+ decimal point appears, at least one digit appears before it.
+
+ g The double argument is converted in style f or e (or
+ E for G conversions). The precision specifies the
+ number of significant digits. If the precision is
+ missing, 6 digits are given; if the precision is zero,
+ it is treated as 1. Style e is used if the exponent
+ from its conversion is less than -4 or greater than
+ or equal to the precision. Trailing zeros are removed
+ from the fractional part of the result; a decimal
+ point appears only if it is followed by at least one
+ digit.
+
+ c The int argument is converted to an unsigned char,
+ and the resulting character is written.
+
+ s The ``char *'' argument is expected to be a pointer to an array
+ of character type (pointer to a string). Characters
+ from the array are written up to (but not including)
+ a terminating NUL character; if a precision is
+ specified, no more than the number specified are
+ written. If a precision is given, no null character
+ need be present; if the precision is not specified,
+ or is greater than the size of the array, the array
+ must contain a terminating NUL character.
+
+ % A `%' is written. No argument is converted. The complete
+ conversion specification is `%%'.
+
+ In no case does a non-existent or small field width cause truncation of a
+ field; if the result of a conversion is wider than the field width, the
+ field is expanded to contain the conversion result.
+
+EXAMPLES
+ To print a date and time in the form `Sunday, July 3, 10:02', where
+ weekday and month are pointers to strings:
+
+ #include <stdio.h>
+ fprintf(stdout, "%s, %s %d, %.2d:%.2d\n",
+ weekday, month, day, hour, min);
+
+ To print pi to five decimal places:
+
+ #include <math.h>
+ #include <stdio.h>
+ fprintf(stdout, "pi = %.5f\n", 4 * atan(1.0));
+
+ To allocate a 128 byte string and print into it:
+
+ #include <stdio.h>
+ #include <stdlib.h>
+ #include <stdarg.h>
+ char *newfmt(const char *fmt, ...)
+ {
+ char *p;
+ va_list ap;
+ if ((p = malloc(128)) == NULL)
+ return (NULL);
+ va_start(ap, fmt);
+ (void) vsnprintf(p, 128, fmt, ap);
+ va_end(ap);
+ return (p);
+ }
+
+SEE ALSO
+ printf(1), scanf(3)
+
+STANDARDS
+ Turkey C Standardization and wimpy POSIX folks did not define
+ snprintf or vsnprintf().
+
+BUGS
+ The conversion formats %D, %O, and %U are not standard and are provided
+ only for backward compatibility. The effect of padding the %p format
+ with zeros (either by the `0' flag or by specifying a precision), and the
+ benign effect (i.e., none) of the `#' flag on %n and %p conversions, as
+ well as other nonsensical combinations such as %Ld, are not standard;
+ such combinations should be avoided.
+
+ The typedef names quad_t and u_quad_t are infelicitous.
+
+*/
+
+
+#include "config.h"
+
+#if !defined(HAVE_SNPRINTF) || !defined(HAVE_VSNPRINTF)
+
+#include <sys/types.h>
+#include <ctype.h>
+#include <stdlib.h>
+#if defined(HAVE_STRING_H)
+# include <string.h>
+#endif
+#if defined(HAVE_STRINGS_H)
+# include <strings.h>
+#endif
+#include <stdio.h>
+
+/*
+ * For testing, define these values
+ */
+#if 0
+#define HAVE_STDARG_H 1
+#define TEST 1
+#define HAVE_QUAD_T 1
+#endif
+
+/**** ENDINCLUDE ****/
+
+/*************************************************
+ * KEEP THIS STRING - MODIFY AT THE END WITH YOUR REVISIONS
+ * i.e. - the LOCAL REVISIONS part is for your use
+ *************************************************/
+
+
+ static char *const _id = "plp_snprintf V98.12.21 Copyright Patrick Powell 1988-2000 "
+ "$Id: snprintf.c,v 1.1 2002-08-30 16:56:50 jmarcus Exp $"
+ " LOCAL REVISIONS: Modified for Netatalk 2002/02/12 Burkhard Schmidt";
+
+/* varargs declarations: */
+
+# undef HAVE_STDARGS /* let's hope that works everywhere (mj) */
+# undef VA_LOCAL_DECL
+# undef VA_START
+# undef VA_SHIFT
+# undef VA_END
+
+#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)
+#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
+
+union value {
+#if defined(HAVE_QUAD_T)
+ quad_t qvalue;
+#endif
+#if defined(HAVE_LONG_LONG)
+ long long value;
+#else
+ long value;
+#endif
+ double dvalue;
+};
+
+#undef CVAL
+#define CVAL(s) (*((unsigned char *)s))
+
+extern int errno;
+ static char * plp_Errormsg ( int err, char *buffer );
+ static void dopr( int visible_control, char **buffer, int *left,
+ const char *format, va_list args );
+ static void fmtstr( int visible_control, char **buffer, int *left,
+ char *value, int ljust, int len, int zpad, int precision );
+ static void fmtnum( char **buffer, int *left,
+ union value *value, int base, int dosign,
+ int ljust, int len, int zpad, int precision );
+#if defined(HAVE_QUAD_T)
+ static void fmtquad( char **buffer, int *left,
+ union value *value, int base, int dosign,
+ int ljust, int len, int zpad, int precision );
+#endif
+ static void fmtdouble( char **bufer, int *left,
+ int fmt, double value,
+ int ljust, int len, int zpad, int precision );
+ static void dostr( char **buffer, int *left, char *str );
+ static void dopr_outch( char **buffer, int *left, int c );
+
+int plp_vsnprintf(char *str, size_t count, const char *fmt, va_list args)
+{
+ int left;
+ char *buffer;
+ if( count < 0 ) count = 0;
+ left = count;
+ if( count == 0 ) str = 0;
+ buffer = str;
+ dopr( 1, &buffer, &left, fmt, args );
+ /* fprintf(stderr,"str 0x%x, buffer 0x%x, count %d, left %d\n",
+ (int)str, (int)buffer, count, left ); */
+ if( str && count > 0 ){
+ if( left > 0 ){
+ str[count-left] = 0;
+ } else {
+ str[count-1] = 0;
+ }
+ }
+ return(count - left);
+}
+
+int plp_unsafe_vsnprintf(char *str, size_t count, const char *fmt, va_list args)
+{
+ int left;
+ char *buffer;
+ if( count < 0 ) count = 0;
+ left = count;
+ if( count == 0 ) str = 0;
+ buffer = str;
+ dopr( 0, &buffer, &left, fmt, args );
+ /* fprintf(stderr,"str 0x%x, buffer 0x%x, count %d, left %d\n",
+ (int)str, (int)buffer, count, left ); */
+ if( str && count > 0 ){
+ if( left > 0 ){
+ str[count-left] = 0;
+ } else {
+ str[count-1] = 0;
+ }
+ }
+ return(count - left);
+}
+
+/* VARARGS3 */
+#ifdef HAVE_STDARGS
+int plp_snprintf (char *str,size_t count,const char *fmt,...)
+#else
+int plp_snprintf (va_alist) va_dcl
+#endif
+{
+#ifndef HAVE_STDARGS
+ char *str;
+ size_t count;
+ char *fmt;
+#endif
+ int n = 0;
+ VA_LOCAL_DECL
+
+ VA_START (fmt);
+ VA_SHIFT (str, char *);
+ VA_SHIFT (count, size_t );
+ VA_SHIFT (fmt, char *);
+ n = plp_vsnprintf ( str, count, fmt, ap);
+ VA_END;
+ return( n );
+}
+
+
+/* VARARGS3 */
+#ifdef HAVE_STDARGS
+int plp_unsafe_snprintf (char *str,size_t count,const char *fmt,...)
+#else
+int plp_unsafe_snprintf (va_alist) va_dcl
+#endif
+{
+#ifndef HAVE_STDARGS
+ char *str;
+ size_t count;
+ char *fmt;
+#endif
+ int n = 0;
+ VA_LOCAL_DECL
+
+ VA_START (fmt);
+ VA_SHIFT (str, char *);
+ VA_SHIFT (count, size_t );
+ VA_SHIFT (fmt, char *);
+ n = plp_unsafe_vsnprintf ( str, count, fmt, ap);
+ VA_END;
+ return( n );
+}
+ static void dopr( int visible_control, char **buffer, int *left, const char *format, va_list args )
+{
+ int ch;
+ union value value;
+ int longflag = 0;
+ int quadflag = 0;
+ char *strvalue;
+ int ljust;
+ int len;
+ int zpad;
+ int precision;
+ int set_precision;
+ double dval;
+ int err = errno;
+ int base = 0;
+ int signed_val = 0;
+
+ while( (ch = *format++) ){
+ switch( ch ){
+ case '%':
+ longflag = quadflag =
+ ljust = len = zpad = base = signed_val = 0;
+ precision = -1; set_precision = 0;
+ nextch:
+ ch = *format++;
+ switch( ch ){
+ case 0:
+ dostr( buffer, left, "**end of format**" );
+ return;
+ case '-': ljust = 1; goto nextch;
+ case '.': set_precision = 1; precision = 0; goto nextch;
+ case '*': len = va_arg( args, int ); goto nextch;
+ case '0': /* set zero padding if len not set */
+ if(len==0 && set_precision == 0 ) zpad = '0';
+ case '1': case '2': case '3':
+ case '4': case '5': case '6':
+ case '7': case '8': case '9':
+ if( set_precision ){
+ precision = precision*10 + ch - '0';
+ } else {
+ len = len*10 + ch - '0';
+ }
+ goto nextch;
+ case 'l': ++longflag; goto nextch;
+ case 'q':
+#if !defined( HAVE_QUAD_T )
+ dostr( buffer, left, "*no quad_t support *");
+ return;
+#endif
+ quadflag = 1;
+ goto nextch;
+ case 'u': case 'U':
+ if( base == 0 ){ base = 10; signed_val = 0; }
+ case 'o': case 'O':
+ if( base == 0 ){ base = 8; signed_val = 0; }
+ case 'd': case 'D':
+ if( base == 0 ){ base = 10; signed_val = 1; }
+ case 'x':
+ if( base == 0 ){ base = 16; signed_val = 0; }
+ case 'X':
+ if( base == 0 ){ base = -16; signed_val = 0; }
+#if defined( HAVE_QUAD_T )
+ if( quadflag ){
+ value.qvalue = va_arg( args, quad_t );
+ fmtquad( buffer, left, &value,base,signed_val, ljust, len, zpad, precision );
+ break;
+ } else
+#endif
+ if( longflag > 1 ){
+#if defined(HAVE_LONG_LONG)
+ if( signed_val ){
+ value.value = va_arg( args, long long );
+ } else {
+ value.value = va_arg( args, unsigned long long );
+ }
+#else
+ if( signed_val ){
+ value.value = va_arg( args, long );
+ } else {
+ value.value = va_arg( args, unsigned long );
+ }
+#endif
+ } else if( longflag ){
+ if( signed_val ){
+ value.value = va_arg( args, long );
+ } else {
+ value.value = va_arg( args, unsigned long );
+ }
+ } else {
+ if( signed_val ){
+ value.value = va_arg( args, int );
+ } else {
+ value.value = va_arg( args, unsigned int );
+ }
+ }
+ fmtnum( buffer, left, &value,base,signed_val, ljust, len, zpad, precision ); break;
+ case 's':
+ strvalue = va_arg( args, char *);
+ fmtstr( visible_control, buffer, left, strvalue,ljust,len, zpad, precision );
+ break;
+ case 'c':
+ ch = va_arg( args, int );
+ { char b[2];
+ b[0] = ch;
+ b[1] = 0;
+ fmtstr( 0, buffer, left, b,ljust,len, zpad, precision );
+ }
+ break;
+ case 'f': case 'g': case 'e':
+ dval = va_arg( args, double );
+ fmtdouble( buffer, left, ch, dval,ljust,len, zpad, precision ); break;
+ case 'm':
+ { char shortbuffer[32];
+ fmtstr( visible_control, buffer, left,
+ plp_Errormsg(err, shortbuffer),ljust,len, zpad, precision );
+ }
+ break;
+ case '%': dopr_outch( buffer, left, ch ); continue;
+ default:
+ dostr( buffer, left, "???????" );
+ }
+ longflag = 0;
+ break;
+ default:
+ dopr_outch( buffer, left, ch );
+ break;
+ }
+ }
+}
+
+/*
+ * Format '%[-]len[.precision]s'
+ * - = left justify (ljust)
+ * len = minimum length
+ * precision = numbers of chars in string to use
+ */
+ static void
+fmtstr( int visible_control, char **buffer, int *left,
+ char *value, int ljust, int len, int zpad, int precision )
+{
+ int padlen, strlenv, i, c; /* amount to pad */
+
+ if( value == 0 ){
+ value = "<NULL>";
+ }
+ /* cheap strlen so you do not have library call */
+ for( strlenv = i = 0; (c=CVAL(value+i)); ++i ){
+ if( visible_control && iscntrl( c ) && c != '\t' && c != '\n' ){
+ ++strlenv;
+ }
+ ++strlenv;
+ }
+ if( precision > 0 && strlenv > precision ){
+ strlenv = precision;
+ }
+ padlen = len - strlenv;
+ if( padlen < 0 ) padlen = 0;
+ if( ljust ) padlen = -padlen;
+ while( padlen > 0 ) {
+ dopr_outch( buffer, left, ' ' );
+ --padlen;
+ }
+ /* output characters */
+ for( i = 0; i < strlenv && (c = CVAL(value+i)); ++i ){
+ if( visible_control && iscntrl( c ) && c != '\t' && c != '\n' ){
+ dopr_outch(buffer, left, '^');
+ c = ('@' | (c & 0x1F));
+ }
+ dopr_outch(buffer, left, c);
+ }
+ while( padlen < 0 ) {
+ dopr_outch( buffer, left, ' ' );
+ ++padlen;
+ }
+}
+
+ static void
+fmtnum( char **buffer, int *left,
+ union value *value, int base, int dosign, int ljust,
+ int len, int zpad, int precision )
+{
+ int signvalue = 0;
+#if defined(HAVE_LONG_LONG)
+ unsigned long long uvalue;
+#else
+ unsigned long uvalue;
+#endif
+ char convert[sizeof( union value) * 8 + 16];
+ int place = 0;
+ int padlen = 0; /* amount to pad */
+ int caps = 0;
+
+ /* fprintf(stderr,"value 0x%x, base %d, dosign %d, ljust %d, len %d, zpad %d\n",
+ value, base, dosign, ljust, len, zpad );/ **/
+ uvalue = value->value;
+ if( dosign ){
+ if( value->value < 0 ) {
+ signvalue = '-';
+ uvalue = -value->value;
+ }
+ }
+ if( base < 0 ){
+ caps = 1;
+ base = -base;
+ }
+ do{
+ convert[place++] =
+ (caps? "0123456789ABCDEF":"0123456789abcdef")
+ [uvalue % (unsigned)base ];
+ uvalue = (uvalue / (unsigned)base );
+ }while(uvalue);
+ convert[place] = 0;
+ padlen = len - place;
+ if( padlen < 0 ) padlen = 0;
+ if( ljust ) padlen = -padlen;
+ /* fprintf( stderr, "str '%s', place %d, sign %c, padlen %d\n",
+ convert,place,signvalue,padlen); / **/
+ if( zpad && padlen > 0 ){
+ if( signvalue ){
+ dopr_outch( buffer, left, signvalue );
+ --padlen;
+ signvalue = 0;
+ }
+ while( padlen > 0 ){
+ dopr_outch( buffer, left, zpad );
+ --padlen;
+ }
+ }
+ while( padlen > 0 ) {
+ dopr_outch( buffer, left, ' ' );
+ --padlen;
+ }
+ if( signvalue ) dopr_outch( buffer, left, signvalue );
+ while( place > 0 ) dopr_outch( buffer, left, convert[--place] );
+ while( padlen < 0 ){
+ dopr_outch( buffer, left, ' ' );
+ ++padlen;
+ }
+}
+
+#if defined(HAVE_QUAD_T)
+
+ static void
+fmtquad( char **buffer, int *left,
+ union value *value, int base, int dosign, int ljust,
+ int len, int zpad, int precision )
+{
+ int signvalue = 0;
+ int place = 0;
+ int padlen = 0; /* amount to pad */
+ int caps = 0;
+ int i, c;
+ union {
+ quad_t qvalue;
+ unsigned char qconvert[sizeof(quad_t)];
+ } vvalue;
+ char convert[2*sizeof(quad_t)+1];
+
+ /* fprintf(stderr,"value 0x%x, base %d, dosign %d, ljust %d, len %d, zpad %d\n",
+ value, base, dosign, ljust, len, zpad );/ **/
+ vvalue.qvalue = value->qvalue;
+
+ if( base < 0 ){
+ caps = 1;
+ }
+
+ for( i = 0; i < sizeof(quad_t); ++i ){
+ c = vvalue.qconvert[i];
+ convert[2*i] =
+ (caps? "0123456789ABCDEF":"0123456789abcdef")[ (c >> 4) & 0xF];
+ convert[2*i+1] =
+ (caps? "0123456789ABCDEF":"0123456789abcdef")[ c & 0xF];
+ }
+ convert[2*i] = 0;
+
+ place = strlen(convert);
+ padlen = len - place;
+ if( padlen < 0 ) padlen = 0;
+ if( ljust ) padlen = -padlen;
+ /* fprintf( stderr, "str '%s', place %d, sign %c, padlen %d\n",
+ convert,place,signvalue,padlen); / **/
+ if( zpad && padlen > 0 ){
+ if( signvalue ){
+ dopr_outch( buffer, left, signvalue );
+ --padlen;
+ signvalue = 0;
+ }
+ while( padlen > 0 ){
+ dopr_outch( buffer, left, zpad );
+ --padlen;
+ }
+ }
+ while( padlen > 0 ) {
+ dopr_outch( buffer, left, ' ' );
+ --padlen;
+ }
+ if( signvalue ) dopr_outch( buffer, left, signvalue );
+ while( place > 0 ) dopr_outch( buffer, left, convert[--place] );
+ while( padlen < 0 ){
+ dopr_outch( buffer, left, ' ' );
+ ++padlen;
+ }
+}
+
+#endif
+
+ static void mystrcat(char *dest, char *src )
+{
+ if( dest && src ){
+ dest += strlen(dest);
+ strcpy(dest,src);
+ }
+}
+
+ static void
+fmtdouble( char **buffer, int *left,
+ int fmt, double value, int ljust, int len, int zpad, int precision )
+{
+ char convert[sizeof( union value) * 8 + 16];
+ char formatstr[128];
+
+ /* fprintf(stderr,"len %d, precision %d\n", len, precision ); */
+ if( len > (sizeof(convert) - 20) ){
+ len = sizeof(convert) - 20;
+ }
+ if( precision >= 0 && precision > sizeof(convert) - 20 ){
+ precision = sizeof(convert) - 20;
+ }
+ if( precision >= 0 && precision > len ) precision = len;
+ strcpy( formatstr, "%" );
+ if( ljust ) mystrcat(formatstr, "-" );
+ if( zpad ) mystrcat(formatstr, "0" );
+ if( len ){
+ sprintf( formatstr+strlen(formatstr), "%d", len );
+ }
+ if( precision >= 0 ){
+ sprintf( formatstr+strlen(formatstr), ".%d", precision );
+ }
+ sprintf( formatstr+strlen(formatstr), "%c", fmt );
+ /* this is easier than trying to do the portable dtostr */
+ /* fprintf(stderr,"format string '%s'\n", formatstr); */
+ sprintf( convert, formatstr, value );
+ dostr( buffer, left, convert );
+}
+
+ static void dostr( char **buffer, int *left, char *str )
+{
+ if(str)while(*str) dopr_outch( buffer, left, *str++ );
+}
+
+ static void dopr_outch( char **buffer, int *left, int c )
+{
+ if( *left > 0 ){
+ *(*buffer)++ = c;
+ }
+ *left -= 1;
+}
+
+
+/****************************************************************************
+ * static char *plp_errormsg( int err )
+ * returns a printable form of the
+ * errormessage corresponding to the valie of err.
+ * This is the poor man's version of sperror(), not available on all systems
+ * Patrick Powell Tue Apr 11 08:05:05 PDT 1995
+ ****************************************************************************/
+/****************************************************************************/
+
+#if !defined(HAVE_STRERROR)
+# undef num_errors
+# if defined(HAVE_SYS_ERRLIST)
+# if !defined(HAVE_DECL_SYS_ERRLIST)
+ extern const char *const sys_errlist[];
+# endif
+# if defined(HAVE_SYS_NERR)
+# if !defined(HAVE_DECL_SYS_NERR)
+ extern int sys_nerr;
+# endif
+# define num_errors (sys_nerr)
+# endif
+# endif
+# if !defined(num_errors)
+# define num_errors (-1) /* always use "errno=%d" */
+# endif
+#endif
+
+ static char * plp_Errormsg ( int err, char *buffer /* int maxlen = 32 */)
+{
+ char *cp;
+
+#if defined(HAVE_STRERROR)
+ cp = (void *)strerror(err);
+#else
+# if defined(HAVE_SYS_ERRLIST)
+ if (err >= 0 && err < num_errors) {
+ cp = (void *)sys_errlist[err];
+ } else
+# endif
+ {
+ (void) sprintf (buffer, "errno=%d", err);
+ cp = buffer;
+ }
+#endif
+ return (cp);
+}
+
+#if defined(TEST)
+#include <stdio.h>
+int main( void )
+{
+ char buffer[128];
+ char *t;
+ char *test1 = "01234";
+ int n;
+ errno = 1;
+ buffer[0] = 0;
+ n = plp_snprintf( buffer, 0, (t="test")); printf( "[%d] %s = '%s'\n", n, t, buffer );
+ n = plp_snprintf( buffer, sizeof(buffer), (t="errno '%m'")); printf( "[%d] %s = '%s'\n", n, t, buffer );
+ n = plp_snprintf( buffer, sizeof(buffer), (t = "%s"), test1 ); printf( "[%d] %s = '%s'\n", n, t, buffer );
+ n = plp_snprintf( buffer, sizeof(buffer), (t = "%12s"), test1 ); printf( "[%d] %s = '%s'\n", n, t, buffer );
+ n = plp_snprintf( buffer, sizeof(buffer), (t = "%-12s"), test1 ); printf( "[%d] %s = '%s'\n", n, t, buffer );
+ n = plp_snprintf( buffer, sizeof(buffer), (t = "%12.2s"), test1 ); printf( "[%d] %s = '%s'\n", n, t, buffer );
+ n = plp_snprintf( buffer, sizeof(buffer), (t = "%-12.2s"), test1 ); printf( "[%d] %s = '%s'\n", n, t, buffer );
+ n = plp_snprintf( buffer, sizeof(buffer), (t = "%g"), 1.25 ); printf( "[%d] %s = '%s'\n", n, t, buffer );
+ n = plp_snprintf( buffer, sizeof(buffer), (t = "%g"), 1.2345 ); printf( "[%d] %s = '%s'\n", n, t, buffer );
+ n = plp_snprintf( buffer, sizeof(buffer), (t = "%12g"), 1.25 ); printf( "[%d] %s = '%s'\n", n, t, buffer );
+ n = plp_snprintf( buffer, sizeof(buffer), (t = "%12.1g"), 1.25 ); printf( "[%d] %s = '%s'\n", n, t, buffer );
+ n = plp_snprintf( buffer, sizeof(buffer), (t = "%12.2g"), 1.25 ); printf( "[%d] %s = '%s'\n", n, t, buffer );
+ n = plp_snprintf( buffer, sizeof(buffer), (t = "%12.3g"), 1.25 ); printf( "[%d] %s = '%s'\n", n, t, buffer );
+ n = plp_snprintf( buffer, sizeof(buffer), (t = "%0*d"), 6, 1 ); printf( "[%d] %s = '%s'\n", n, t, buffer );
+#if defined(HAVE_LONG_LONG)
+ n = plp_snprintf( buffer, sizeof(buffer), (t = "%llx"), 1, 2, 3, 4 ); printf( "[%d] %s = '%s'\n", n, t, buffer );
+ n = plp_snprintf( buffer, sizeof(buffer), (t = "%llx"), (long long)1, (long long)2 ); printf( "[%d] %s = '%s'\n", n, t, buffer );
+ n = plp_snprintf( buffer, sizeof(buffer), (t = "%qx"), 1, 2, 3, 4 ); printf( "[%d] %s = '%s'\n", n, t, buffer );
+ n = plp_snprintf( buffer, sizeof(buffer), (t = "%qx"), (quad_t)1, (quad_t)2 ); printf( "[%d] %s = '%s'\n", n, t, buffer );
+#endif
+ n = plp_snprintf( buffer, sizeof(buffer), (t = "0%x, 0%x"), (char *)(0x01234567), (char *)0, 0, 0, 0); printf( "[%d] %s = '%s'\n", n, t, buffer );
+ n = plp_snprintf( buffer, sizeof(buffer), (t = "0%x, 0%x"), (char *)(0x01234567), (char *)0x89ABCDEF, 0, 0, 0); printf( "[%d] %s = '%s'\n", n, t, buffer );
+ n = plp_snprintf( buffer, sizeof(buffer), (t = "0%x, 0%x"), t, 0, 0, 0, 0); printf( "[%d] %s = '%s'\n", n, t, buffer );
+ n = plp_snprintf( buffer, sizeof(buffer), (t = "%f"), 1.25 ); printf( "[%d] %s = '%s'\n", n, t, buffer );
+ n = plp_snprintf( buffer, sizeof(buffer), (t = "%f"), 1.2345 ); printf( "[%d] %s = '%s'\n", n, t, buffer );
+ n = plp_snprintf( buffer, sizeof(buffer), (t = "%12f"), 1.25 ); printf( "[%d] %s = '%s'\n", n, t, buffer );
+ n = plp_snprintf( buffer, sizeof(buffer), (t = "%12.2f"), 1.25 ); printf( "[%d] %s = '%s'\n", n, t, buffer );
+ n = plp_snprintf( buffer, sizeof(buffer), (t = "%f"), 1.0 ); printf( "[%d] %s = '%s'\n", n, t, buffer );
+ n = plp_snprintf( buffer, sizeof(buffer), (t = "%.0f"), 1.0 ); printf( "[%d] %s = '%s'\n", n, t, buffer );
+ n = plp_snprintf( buffer, sizeof(buffer), (t = "%0.0f"), 1.0 ); printf( "[%d] %s = '%s'\n", n, t, buffer );
+ n = plp_snprintf( buffer, sizeof(buffer), (t = "%1.0f"), 1.0 ); printf( "[%d] %s = '%s'\n", n, t, buffer );
+ n = plp_snprintf( buffer, sizeof(buffer), (t = "%1.5f"), 1.0 ); printf( "[%d] %s = '%s'\n", n, t, buffer );
+ n = plp_snprintf( buffer, sizeof(buffer), (t = "%5.5f"), 1.0 ); printf( "[%d] %s = '%s'\n", n, t, buffer );
+ return(0);
+}
+#endif
+
+#endif /* !defined(HAVE_SNPRINTF) || !defined(HAVE_VSNPRINTF) */
+
+#ifndef HAVE_VSNPRINTF
+int vsnprintf(char *str, size_t count, const char *fmt, va_list args)
+{
+ int n;
+
+ n = plp_vsnprintf(str, count, fmt, args);
+
+ return(n);
+}
+#endif /* ! HAVE_VSNPRINTF */
+
+#ifndef HAVE_SNPRINTF
+#ifdef HAVE_STDARGS
+int snprintf (char *str,size_t count,const char *fmt,...)
+#else
+int snprintf (va_alist) va_dcl
+#endif
+{
+#ifndef HAVE_STDARGS
+ char *str;
+ size_t count;
+ char *fmt;
+#endif
+ int n = 0;
+ VA_LOCAL_DECL
+
+ VA_START (fmt);
+ VA_SHIFT (str, char *);
+ VA_SHIFT (count, size_t );
+ VA_SHIFT (fmt, char *);
+ n = plp_vsnprintf ( str, count, fmt, ap);
+ VA_END;
+ return( n );
+}
+#endif /* ! HAVE_VNSPRINTF */
projects / netatalk.git / commitdiff