xref: /third_party/backends/lib/snprintf.c

12    snprintf( char *buffer, int len, const char *format,...)
13    plp_unsafe_snprintf( char *buffer, int len, const char *format,...)
27    against this,  all printing was done via a buffer, generous enough
32    SPRINTFing to a buffer on a stack...  The rest,  of course,  is
33    well known,  as buffer overruns in the stack are a common way to
539  static char * plp_Errormsg ( int err, char *buffer );
540  static void dopr( int visible_control, char **buffer, int *left,
542  static void fmtstr( int visible_control, char **buffer, int *left,
544  static void fmtnum(  char **buffer, int *left,
548  static void fmtquad(  char **buffer, int *left,
552  static void fmtdouble( char **buffer, int *left,
555  static void dostr(  char **buffer, int *left, char *str );
556  static void dopr_outch(  char **buffer, int *left, int c );
566 	char *buffer;
570 	buffer = str;
571 	dopr( 1, &buffer, &left, fmt, args );
572 	/* fprintf(stderr,"str 0x%x, buffer 0x%x, count %d, left %d\n",
573 		(int)str, (int)buffer, count, left ); */
592 	char *buffer;
596 	buffer = str;
597 	dopr( 0, &buffer, &left, fmt, args );
598 	/* fprintf(stderr,"str 0x%x, buffer 0x%x, count %d, left %d\n",
599 		(int)str, (int)buffer, count, left ); */
658  static void dopr( int visible_control, char **buffer, int *left, const char *format, va_list args )
685 				dostr( buffer, left, "**end of format**" );
710 					dostr( buffer, left, "*no quad_t support *");
728 					fmtquad( buffer, left,  &value,base,signed_val, ljust, len, zpad, precision );
759 				fmtnum( buffer, left,  &value,base,signed_val, ljust, len, zpad, precision ); break;
762 				fmtstr( visible_control, buffer, left, strvalue,ljust,len, zpad, precision );
769 					fmtstr( 0, buffer, left, b,ljust,len, zpad, precision );
774 				fmtdouble( buffer, left, ch, dval,ljust,len, zpad, precision ); break;
777 				fmtstr( visible_control, buffer, left,
781 			case '%': dopr_outch( buffer, left, ch ); continue;
783 				dostr(  buffer, left, "???????" );
788 			dopr_outch( buffer, left, ch );
801  fmtstr( int visible_control, char **buffer, int *left,
823 		dopr_outch( buffer, left, ' ' );
829 			dopr_outch(buffer, left, '^');
832 		dopr_outch(buffer, left, c);
835 		dopr_outch( buffer, left, ' ' );
841  fmtnum( char **buffer, int *left,
883 			dopr_outch( buffer, left, signvalue );
888 			dopr_outch( buffer, left, zpad );
893 		dopr_outch( buffer, left, ' ' );
896 	if( signvalue ) dopr_outch( buffer, left, signvalue );
897 	while( place > 0 ) dopr_outch( buffer, left, convert[--place] );
899 		dopr_outch( buffer, left, ' ' );
907  fmtquad( char **buffer, int *left,
947 			dopr_outch( buffer, left, signvalue );
952 			dopr_outch( buffer, left, zpad );
957 		dopr_outch( buffer, left, ' ' );
960 	if( signvalue ) dopr_outch( buffer, left, signvalue );
961 	while( place > 0 ) dopr_outch( buffer, left, convert[--place] );
963 		dopr_outch( buffer, left, ' ' );
979  fmtdouble( char **buffer, int *left,
1007 	dostr( buffer, left, convert );
1010  static void dostr( char **buffer, int *left, char *str  )
1012 	if(str)while(*str) dopr_outch( buffer, left, *str++ );
1015  static void dopr_outch( char **buffer, int *left, int c )
1018 		*(*buffer)++ = c;
1051  static char * plp_Errormsg ( int err, char *buffer /* int maxlen = 32 */)
1064 		(void) sprintf (buffer, "errno=%d", err);
1065 		cp = buffer;
1075 	char buffer[128];
1080 	buffer[0] = 0;
1081 	n = snprintf( buffer, 0, (t="test")); printf( "[%d] %s = '%s'\n", n, t, buffer );
1082 	n = snprintf( buffer, sizeof(buffer), (t="errno '%m'")); printf( "[%d] %s = '%s'\n", n, t, buffer );
1083 	n = snprintf( buffer, sizeof(buffer), (t = "%s"), test1 ); printf( "[%d] %s = '%s'\n", n, t, buffer );
1084 	n = snprintf( buffer, sizeof(buffer), (t = "%12s"), test1 ); printf( "[%d] %s = '%s'\n", n, t, buffer );
1085 	n = snprintf( buffer, sizeof(buffer), (t = "%-12s"), test1 ); printf( "[%d] %s = '%s'\n", n, t, buffer );
1086 	n = snprintf( buffer, sizeof(buffer), (t = "%12.2s"), test1 ); printf( "[%d] %s = '%s'\n", n, t, buffer );
1087 	n = snprintf( buffer, sizeof(buffer), (t = "%-12.2s"), test1 ); printf( "[%d] %s = '%s'\n", n, t, buffer );
1088 	n = snprintf( buffer, sizeof(buffer), (t = "%g"), 1.25 ); printf( "[%d] %s = '%s'\n", n, t, buffer );
1089 	n = snprintf( buffer, sizeof(buffer), (t = "%g"), 1.2345 ); printf( "[%d] %s = '%s'\n", n, t, buffer );
1090 	n = snprintf( buffer, sizeof(buffer), (t = "%12g"), 1.25 ); printf( "[%d] %s = '%s'\n", n, t, buffer );
1091 	n = snprintf( buffer, sizeof(buffer), (t = "%12.1g"), 1.25 ); printf( "[%d] %s = '%s'\n", n, t, buffer );
1092 	n = snprintf( buffer, sizeof(buffer), (t = "%12.2g"), 1.25 ); printf( "[%d] %s = '%s'\n", n, t, buffer );
1093 	n = snprintf( buffer, sizeof(buffer), (t = "%12.3g"), 1.25 ); printf( "[%d] %s = '%s'\n", n, t, buffer );
1094 	n = snprintf( buffer, sizeof(buffer), (t = "%0*d"), 6, 1 ); printf( "[%d] %s = '%s'\n", n, t, buffer );
1096 	n = snprintf( buffer, sizeof(buffer), (t = "%llx"), 1, 2, 3, 4 ); printf( "[%d] %s = '%s'\n", n, t, buffer );
1097 	n = snprintf( buffer, sizeof(buffer), (t = "%llx"), (long long)1, (long long)2 ); printf( "[%d] %s = '%s'\n", n, t, buffer );
1098 	n = snprintf( buffer, sizeof(buffer), (t = "%qx"), 1, 2, 3, 4 ); printf( "[%d] %s = '%s'\n", n, t, buffer );
1099 	n = snprintf( buffer, sizeof(buffer), (t = "%qx"), (quad_t)1, (quad_t)2 ); printf( "[%d] %s = '%s'\n", n, t, buffer );
1101 	n = snprintf( buffer, sizeof(buffer), (t = "0%x, 0%x"), (char *)(0x01234567), (char *)0, 0, 0, 0); printf( "[%d] %s = '%s'\n", n, t, buffer );
1102 	n = snprintf( buffer, sizeof(buffer), (t = "0%x, 0%x"), (char *)(0x01234567), (char *)0x89ABCDEF, 0, 0, 0); printf( "[%d] %s = '%s'\n", n, t, buffer );
1103 	n = snprintf( buffer, sizeof(buffer), (t = "0%x, 0%x"), t, 0, 0, 0, 0); printf( "[%d] %s = '%s'\n", n, t, buffer );
1104 	n = snprintf( buffer, sizeof(buffer), (t = "%f"), 1.25 ); printf( "[%d] %s = '%s'\n", n, t, buffer );
1105 	n = snprintf( buffer, sizeof(buffer), (t = "%f"), 1.2345 ); printf( "[%d] %s = '%s'\n", n, t, buffer );
1106 	n = snprintf( buffer, sizeof(buffer), (t = "%12f"), 1.25 ); printf( "[%d] %s = '%s'\n", n, t, buffer );
1107 	n = snprintf( buffer, sizeof(buffer), (t = "%12.2f"), 1.25 ); printf( "[%d] %s = '%s'\n", n, t, buffer );
1108 	n = snprintf( buffer, sizeof(buffer), (t = "%f"), 1.0 ); printf( "[%d] %s = '%s'\n", n, t, buffer );
1109 	n = snprintf( buffer, sizeof(buffer), (t = "%.0f"), 1.0 ); printf( "[%d] %s = '%s'\n", n, t, buffer );
1110 	n = snprintf( buffer, sizeof(buffer), (t = "%0.0f"), 1.0 ); printf( "[%d] %s = '%s'\n", n, t, buffer );
1111 	n = snprintf( buffer, sizeof(buffer), (t = "%1.0f"), 1.0 ); printf( "[%d] %s = '%s'\n", n, t, buffer );
1112 	n = snprintf( buffer, sizeof(buffer), (t = "%1.5f"), 1.0 ); printf( "[%d] %s = '%s'\n", n, t, buffer );
1113 	n = snprintf( buffer, sizeof(buffer), (t = "%5.5f"), 1.0 ); printf( "[%d] %s = '%s'\n", n, t, buffer );

Indexes created Thu Nov 07 10:32:03 CST 2024