Remove converter-sample.c, as it is not part of the runtime library

2 files changed, 1 insertions, 726 deletions

diff --git a/src/Makefile.am b/src/Makefile.am
index 7ec7563..4451f65 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -8,5 +8,5 @@ AM_CFLAGS = -fPIC -Wall
 
 lib_LTLIBRARIES = libasn1c.la
 
-libasn1c_la_SOURCES = ANY.c              constraints.c         GeneralizedTime.c   NumericString.c      T61String.c asn_codecs_prim.c  constr_CHOICE.c       GeneralString.c     ObjectDescriptor.c   TeletexString.c asn_SEQUENCE_OF.c  constr_SEQUENCE.c     GraphicString.c     OBJECT_IDENTIFIER.c  UniversalString.c asn_SET_OF.c       constr_SEQUENCE_OF.c  IA5String.c         OCTET_STRING.c       UTCTime.c ber_decoder.c      constr_SET.c          INTEGER.c           per_decoder.c        UTF8String.c ber_tlv_length.c   constr_SET_OF.c       ISO646String.c      per_encoder.c        VideotexString.c ber_tlv_tag.c      constr_TYPE.c         NativeEnumerated.c  per_support.c        VisibleString.c BIT_STRING.c       converter-sample.c    NativeInteger.c     PrintableString.c    xer_decoder.c BMPString.c        der_encoder.c         NativeReal.c        REAL.c               xer_encoder.c BOOLEAN.c          ENUMERATED.c          NULL.c              RELATIVE-OID.c       xer_support.c 
+libasn1c_la_SOURCES = ANY.c              constraints.c         GeneralizedTime.c   NumericString.c      T61String.c asn_codecs_prim.c  constr_CHOICE.c       GeneralString.c     ObjectDescriptor.c   TeletexString.c asn_SEQUENCE_OF.c  constr_SEQUENCE.c     GraphicString.c     OBJECT_IDENTIFIER.c  UniversalString.c asn_SET_OF.c       constr_SEQUENCE_OF.c  IA5String.c         OCTET_STRING.c       UTCTime.c ber_decoder.c      constr_SET.c          INTEGER.c           per_decoder.c        UTF8String.c ber_tlv_length.c   constr_SET_OF.c       ISO646String.c      per_encoder.c        VideotexString.c ber_tlv_tag.c      constr_TYPE.c         NativeEnumerated.c  per_support.c        VisibleString.c BIT_STRING.c       NativeInteger.c     PrintableString.c    xer_decoder.c BMPString.c        der_encoder.c         NativeReal.c        REAL.c               xer_encoder.c BOOLEAN.c          ENUMERATED.c          NULL.c              RELATIVE-OID.c       xer_support.c 
 
diff --git a/src/converter-sample.c b/src/converter-sample.c
deleted file mode 100644
index 6317d8a..0000000
--- a/src/converter-sample.c
+++ /dev/null
@@ -1,725 +0,0 @@
-/*
- * Generic converter template for a selected ASN.1 type.
- * Copyright (c) 2005, 2006 Lev Walkin <vlm@lionet.info>. All rights reserved.
- * 
- * To compile with your own ASN.1 type, please redefine the PDU as shown:
- * 
- * cc -DPDU=MyCustomType -o myDecoder.o -c converter-sample.c
- */
-#ifdef	HAVE_CONFIG_H
-#include <config.h>
-#endif
-#include <stdio.h>
-#include <sys/types.h>
-#include <stdlib.h>	/* for atoi(3) */
-#include <unistd.h>	/* for getopt(3) */
-#include <string.h>	/* for strerror(3) */
-#include <sysexits.h>	/* for EX_* exit codes */
-#include <assert.h>	/* for assert(3) */
-#include <errno.h>	/* for errno */
-
-#include <asn_application.h>
-#include <asn_internal.h>	/* for _ASN_DEFAULT_STACK_MAX */
-
-/* Convert "Type" defined by -DPDU into "asn_DEF_Type" */
-#define	ASN_DEF_PDU(t)	asn_DEF_ ## t
-#define	DEF_PDU_Type(t)	ASN_DEF_PDU(t)
-#define	PDU_Type	DEF_PDU_Type(PDU)
-
-extern asn_TYPE_descriptor_t PDU_Type;	/* ASN.1 type to be decoded */
-#ifdef	ASN_PDU_COLLECTION		/* Generated by asn1c: -pdu=... */
-extern asn_TYPE_descriptor_t *asn_pdu_collection[];
-#endif
-
-/*
- * Open file and parse its contens.
- */
-static void *data_decode_from_file(asn_TYPE_descriptor_t *asnTypeOfPDU,
-	FILE *file, const char *name, ssize_t suggested_bufsize, int first_pdu);
-static int write_out(const void *buffer, size_t size, void *key);
-static FILE *argument_to_file(char *av[], int idx);
-static char *argument_to_name(char *av[], int idx);
-
-       int opt_debug;	/* -d (or -dd) */
-static int opt_check;	/* -c (constraints checking) */
-static int opt_stack;	/* -s (maximum stack size) */
-static int opt_ippad;	/* -per-padded (PER input is byte-padded) */
-static int opt_onepdu;	/* -1 (decode single PDU) */
-
-/* Input data format selector */
-static enum input_format {
-	INP_BER,	/* -iber: BER input */
-	INP_XER,	/* -ixer: XER input */
-	INP_PER		/* -iper: Unaligned PER input */
-} iform;	/* -i<format> */
-
-/* Output data format selector */
-static enum output_format {
-	OUT_XER,	/* -oxer: XER (XML) output */
-	OUT_DER,	/* -oder: DER (BER) output */
-	OUT_PER,	/* -oper: Unaligned PER output */
-	OUT_TEXT,	/* -otext: semi-structured text */
-	OUT_NULL	/* -onull: No pretty-printing */
-} oform;	/* -o<format> */
-
-/* Debug output function */
-static inline void
-DEBUG(const char *fmt, ...) {
-	va_list ap;
-	if(!opt_debug) return;
-	fprintf(stderr, "AD: ");
-	va_start(ap, fmt);
-	vfprintf(stderr, fmt, ap);
-	va_end(ap);
-	fprintf(stderr, "\n");
-}
-
-int
-main(int ac, char *av[]) {
-	static asn_TYPE_descriptor_t *pduType = &PDU_Type;
-	ssize_t suggested_bufsize = 8192;  /* close or equal to stdio buffer */
-	int number_of_iterations = 1;
-	int num;
-	int ch;
-
-	/* Figure out if Unaligned PER needs to be default */
-	if(pduType->uper_decoder)
-		iform = INP_PER;
-
-	/*
-	 * Pocess the command-line argments.
-	 */
-	while((ch = getopt(ac, av, "i:o:1b:cdn:p:hs:")) != -1)
-	switch(ch) {
-	case 'i':
-		if(optarg[0] == 'b') { iform = INP_BER; break; }
-		if(optarg[0] == 'x') { iform = INP_XER; break; }
-		if(pduType->uper_decoder
-		&& optarg[0] == 'p') { iform = INP_PER; break; }
-		fprintf(stderr, "-i<format>: '%s': improper format selector\n",
-			optarg);
-		exit(EX_UNAVAILABLE);
-	case 'o':
-		if(optarg[0] == 'd') { oform = OUT_DER; break; }
-		if(pduType->uper_encoder
-		&& optarg[0] == 'p') { oform = OUT_PER; break; }
-		if(optarg[0] == 'x') { oform = OUT_XER; break; }
-		if(optarg[0] == 't') { oform = OUT_TEXT; break; }
-		if(optarg[0] == 'n') { oform = OUT_NULL; break; }
-		fprintf(stderr, "-o<format>: '%s': improper format selector\n",
-			optarg);
-		exit(EX_UNAVAILABLE);
-	case '1':
-		opt_onepdu = 1;
-		break;
-	case 'b':
-		suggested_bufsize = atoi(optarg);
-		if(suggested_bufsize < 1
-			|| suggested_bufsize > 16 * 1024 * 1024) {
-			fprintf(stderr,
-				"-b %s: Improper buffer size (1..16M)\n",
-				optarg);
-			exit(EX_UNAVAILABLE);
-		}
-		break;
-	case 'c':
-		opt_check = 1;
-		break;
-	case 'd':
-		opt_debug++;	/* Double -dd means ASN.1 debug */
-		break;
-	case 'n':
-		number_of_iterations = atoi(optarg);
-		if(number_of_iterations < 1) {
-			fprintf(stderr,
-				"-n %s: Improper iterations count\n", optarg);
-			exit(EX_UNAVAILABLE);
-		}
-		break;
-	case 'p':
-		if(strcmp(optarg, "er-padded") == 0) {
-			opt_ippad = 1;
-			break;
-		}
-#ifdef	ASN_PDU_COLLECTION
-		if(strcmp(optarg, "list") == 0) {
-			asn_TYPE_descriptor_t **pdu = asn_pdu_collection;
-			fprintf(stderr, "Available PDU types:\n");
-			for(; *pdu; pdu++) printf("%s\n", (*pdu)->name);
-			exit(0);
-		} else if(optarg[0] >= 'A' && optarg[0] <= 'Z') {
-			asn_TYPE_descriptor_t **pdu = asn_pdu_collection;
-			while(*pdu && strcmp((*pdu)->name, optarg)) pdu++;
-			if(*pdu) { pduType = *pdu; break; }
-			fprintf(stderr, "-p %s: Unrecognized PDU\n", optarg);
-		}
-#endif	/* ASN_PDU_COLLECTION */
-		fprintf(stderr, "-p %s: Unrecognized option\n", optarg);
-		exit(EX_UNAVAILABLE);
-	case 's':
-		opt_stack = atoi(optarg);
-		if(opt_stack < 0) {
-			fprintf(stderr,
-				"-s %s: Non-negative value expected\n",
-				optarg);
-			exit(EX_UNAVAILABLE);
-		}
-		break;
-	case 'h':
-	default:
-		fprintf(stderr, "Usage: %s [options] <data.ber> ...\n", av[0]);
-		fprintf(stderr, "Where options are:\n");
-		if(pduType->uper_decoder)
-		fprintf(stderr,
-		"  -iper        Input is in Unaligned PER (Packed Encoding Rules) (DEFAULT)\n");
-		fprintf(stderr,
-		"  -iber        Input is in BER (Basic Encoding Rules)%s\n",
-			iform == INP_PER ? "" : " (DEFAULT)");
-		fprintf(stderr,
-		"  -ixer        Input is in XER (XML Encoding Rules)\n");
-		if(pduType->uper_encoder)
-		fprintf(stderr,
-		"  -oper        Output in Unaligned PER (Packed Encoding Rules)\n");
-		fprintf(stderr,
-		"  -oder        Output in DER (Distinguished Encoding Rules)\n"
-		"  -oxer        Output in XER (XML Encoding Rules) (DEFAULT)\n"
-		"  -otext       Output in plain semi-structured text (dump)\n"
-		"  -onull       Verify (decode) input, but do not output\n");
-		if(pduType->uper_decoder)
-		fprintf(stderr,
-		"  -per-padded  Assume PER PDUs are byte-padded (-iper)\n");
-#ifdef	ASN_PDU_COLLECTION
-		fprintf(stderr,
-		"  -p <PDU>     Specify PDU type to decode\n"
-		"  -p list      List available PDUs\n");
-#endif	/* ASN_PDU_COLLECTION */
-		fprintf(stderr,
-		"  -1           Decode only the first PDU in file\n"
-		"  -b <size>    Set the i/o buffer size (default is %ld)\n"
-		"  -c           Check ASN.1 constraints after decoding\n"
-		"  -d           Enable debugging (-dd is even better)\n"
-		"  -n <num>     Process files <num> times\n"
-		"  -s <size>    Set the stack usage limit (default is %d)\n"
-		, (long)suggested_bufsize, _ASN_DEFAULT_STACK_MAX);
-		exit(EX_USAGE);
-	}
-
-	ac -= optind;
-	av += optind;
-
-	if(ac < 1) {
-		fprintf(stderr, "%s: No input files specified. "
-				"Try '-h' for more information\n",
-				av[-optind]);
-		exit(EX_USAGE);
-	}
-
-	setvbuf(stdout, 0, _IOLBF, 0);
-
-	for(num = 0; num < number_of_iterations; num++) {
-	  int ac_i;
-	  /*
-	   * Process all files in turn.
-	   */
-	  for(ac_i = 0; ac_i < ac; ac_i++) {
-	    asn_enc_rval_t erv;
-	    void *structure;	/* Decoded structure */
-	    FILE *file = argument_to_file(av, ac_i);
-	    char *name = argument_to_name(av, ac_i);
-	    int first_pdu;
-
-	    for(first_pdu = 1; first_pdu || !opt_onepdu; first_pdu = 0) {
-		/*
-		 * Decode the encoded structure from file.
-		 */
-		structure = data_decode_from_file(pduType,
-				file, name, suggested_bufsize, first_pdu);
-		if(!structure) {
-			if(errno) {
-				/* Error message is already printed */
-				exit(EX_DATAERR);
-			} else {
-				/* EOF */
-				break;
-			}
-		}
-
-		/* Check ASN.1 constraints */
-		if(opt_check) {
-			char errbuf[128];
-			size_t errlen = sizeof(errbuf);
-			if(asn_check_constraints(pduType, structure,
-				errbuf, &errlen)) {
-				fprintf(stderr, "%s: ASN.1 constraint "
-					"check failed: %s\n", name, errbuf);
-				exit(EX_DATAERR);
-			}
-		}
-
-		switch(oform) {
-		case OUT_NULL:
-			fprintf(stderr, "%s: decoded successfully\n", name);
-			break;
-		case OUT_TEXT:	/* -otext */
-			asn_fprint(stdout, pduType, structure);
-			break;
-		case OUT_XER:	/* -oxer */
-			if(xer_fprint(stdout, pduType, structure)) {
-				fprintf(stderr,
-					"%s: Cannot convert %s into XML\n",
-					name, pduType->name);
-				exit(EX_UNAVAILABLE);
-			}
-			break;
-		case OUT_DER:
-			erv = der_encode(pduType, structure, write_out, stdout);
-			if(erv.encoded < 0) {
-				fprintf(stderr,
-					"%s: Cannot convert %s into DER\n",
-					name, pduType->name);
-				exit(EX_UNAVAILABLE);
-			}
-			DEBUG("Encoded in %ld bytes of DER", (long)erv.encoded);
-			break;
-		case OUT_PER:
-			erv = uper_encode(pduType, structure, write_out, stdout);
-			if(erv.encoded < 0) {
-				fprintf(stderr,
-				"%s: Cannot convert %s into Unaligned PER\n",
-					name, pduType->name);
-				exit(EX_UNAVAILABLE);
-			}
-			DEBUG("Encoded in %ld bits of UPER", (long)erv.encoded);
-			break;
-		}
-
-		ASN_STRUCT_FREE(*pduType, structure);
-	    }
-
-	    if(file && file != stdin)
-		fclose(file);
-	  }
-	}
-
-	return 0;
-}
-
-static struct dynamic_buffer {
-	uint8_t *data;		/* Pointer to the data bytes */
-	size_t offset;		/* Offset from the start */
-	size_t length;		/* Length of meaningful contents */
-	size_t unbits;		/* Unused bits in the last byte */
-	size_t allocated;	/* Allocated memory for data */
-	int    nreallocs;	/* Number of data reallocations */
-	off_t  bytes_shifted;	/* Number of bytes ever shifted */
-} DynamicBuffer;
-
-static void
-buffer_dump() {
-	uint8_t *p = DynamicBuffer.data + DynamicBuffer.offset;
-	uint8_t *e = p + DynamicBuffer.length - (DynamicBuffer.unbits ? 1 : 0);
-	if(!opt_debug) return;
-	DEBUG("Buffer: { d=%p, o=%ld, l=%ld, u=%ld, a=%ld, s=%ld }",
-		DynamicBuffer.data,
-		(long)DynamicBuffer.offset,
-		(long)DynamicBuffer.length,
-		(long)DynamicBuffer.unbits,
-		(long)DynamicBuffer.allocated,
-		(long)DynamicBuffer.bytes_shifted);
-	for(; p < e; p++) {
-		fprintf(stderr, " %c%c%c%c%c%c%c%c",
-			((*p >> 7) & 1) ? '1' : '0',
-			((*p >> 6) & 1) ? '1' : '0',
-			((*p >> 5) & 1) ? '1' : '0',
-			((*p >> 4) & 1) ? '1' : '0',
-			((*p >> 3) & 1) ? '1' : '0',
-			((*p >> 2) & 1) ? '1' : '0',
-			((*p >> 1) & 1) ? '1' : '0',
-			((*p >> 0) & 1) ? '1' : '0');
-	}
-	if(DynamicBuffer.unbits) {
-		int shift;
-		fprintf(stderr, " ");
-		for(shift = 7; shift >= DynamicBuffer.unbits; shift--)
-			fprintf(stderr, "%c", ((*p >> shift) & 1) ? '1' : '0');
-		fprintf(stderr, " %d:%d\n",
-			DynamicBuffer.length - 1, 8 - DynamicBuffer.unbits);
-	} else {
-		fprintf(stderr, " %d\n", DynamicBuffer.length);
-	}
-}
-
-/*
- * Move the buffer content left N bits, possibly joining it with
- * preceeding content.
- */
-static void
-buffer_shift_left(size_t offset, int bits) {
-	uint8_t *ptr = DynamicBuffer.data + DynamicBuffer.offset + offset;
-	uint8_t *end = DynamicBuffer.data + DynamicBuffer.offset
-			+ DynamicBuffer.length - 1;
-	
-	if(!bits) return;
-
-	DEBUG("Shifting left %d bits off %ld (o=%ld, u=%ld, l=%ld)",
-		bits, (long)offset,
-		(long)DynamicBuffer.offset,
-		(long)DynamicBuffer.unbits,
-		(long)DynamicBuffer.length);
-
-	if(offset) {
-		int right;
-		right = ptr[0] >> (8 - bits);
-
-		DEBUG("oleft: %c%c%c%c%c%c%c%c",
-			((ptr[-1] >> 7) & 1) ? '1' : '0',
-			((ptr[-1] >> 6) & 1) ? '1' : '0',
-			((ptr[-1] >> 5) & 1) ? '1' : '0',
-			((ptr[-1] >> 4) & 1) ? '1' : '0',
-			((ptr[-1] >> 3) & 1) ? '1' : '0',
-			((ptr[-1] >> 2) & 1) ? '1' : '0',
-			((ptr[-1] >> 1) & 1) ? '1' : '0',
-			((ptr[-1] >> 0) & 1) ? '1' : '0');
-
-		DEBUG("oriht: %c%c%c%c%c%c%c%c",
-			((ptr[0] >> 7) & 1) ? '1' : '0',
-			((ptr[0] >> 6) & 1) ? '1' : '0',
-			((ptr[0] >> 5) & 1) ? '1' : '0',
-			((ptr[0] >> 4) & 1) ? '1' : '0',
-			((ptr[0] >> 3) & 1) ? '1' : '0',
-			((ptr[0] >> 2) & 1) ? '1' : '0',
-			((ptr[0] >> 1) & 1) ? '1' : '0',
-			((ptr[0] >> 0) & 1) ? '1' : '0');
-
-		DEBUG("mriht: %c%c%c%c%c%c%c%c",
-			((right >> 7) & 1) ? '1' : '0',
-			((right >> 6) & 1) ? '1' : '0',
-			((right >> 5) & 1) ? '1' : '0',
-			((right >> 4) & 1) ? '1' : '0',
-			((right >> 3) & 1) ? '1' : '0',
-			((right >> 2) & 1) ? '1' : '0',
-			((right >> 1) & 1) ? '1' : '0',
-			((right >> 0) & 1) ? '1' : '0');
-
-		ptr[-1] = (ptr[-1] & (0xff << bits)) | right;
-
-		DEBUG("after: %c%c%c%c%c%c%c%c",
-			((ptr[-1] >> 7) & 1) ? '1' : '0',
-			((ptr[-1] >> 6) & 1) ? '1' : '0',
-			((ptr[-1] >> 5) & 1) ? '1' : '0',
-			((ptr[-1] >> 4) & 1) ? '1' : '0',
-			((ptr[-1] >> 3) & 1) ? '1' : '0',
-			((ptr[-1] >> 2) & 1) ? '1' : '0',
-			((ptr[-1] >> 1) & 1) ? '1' : '0',
-			((ptr[-1] >> 0) & 1) ? '1' : '0');
-	}
-
-	buffer_dump();
-
-	for(; ptr < end; ptr++) {
-		int right = ptr[1] >> (8 - bits);
-		*ptr = (*ptr << bits) | right;
-	}
-	*ptr <<= bits;
-
-	DEBUG("Unbits [%d=>", (int)DynamicBuffer.unbits);
-	if(DynamicBuffer.unbits == 0) {
-		DynamicBuffer.unbits += bits;
-	} else {
-		DynamicBuffer.unbits += bits;
-		if(DynamicBuffer.unbits > 7) {
-			DynamicBuffer.unbits -= 8;
-			DynamicBuffer.length--;
-			DynamicBuffer.bytes_shifted++;
-		}
-	}
-	DEBUG("Unbits =>%d]", (int)DynamicBuffer.unbits);
-
-	buffer_dump();
-
-	DEBUG("Shifted. Now (o=%ld, u=%ld l=%ld)",
-		(long)DynamicBuffer.offset,
-		(long)DynamicBuffer.unbits,
-		(long)DynamicBuffer.length);
-	
-
-}
-
-/*
- * Ensure that the buffer contains at least this amount of free space.
- */
-static void add_bytes_to_buffer(const void *data2add, size_t bytes) {
-
-	if(bytes == 0) return;
-
-	DEBUG("=> add_bytes(%ld) { o=%ld l=%ld u=%ld, s=%ld }",
-		(long)bytes,
-		(long)DynamicBuffer.offset,
-		(long)DynamicBuffer.length,
-		(long)DynamicBuffer.unbits,
-		(long)DynamicBuffer.allocated);
-
-	if(DynamicBuffer.allocated
-	>= (DynamicBuffer.offset + DynamicBuffer.length + bytes)) {
-		DEBUG("\tNo buffer reallocation is necessary");
-	} else if(bytes <= DynamicBuffer.offset) {
-		DEBUG("\tContents shifted by %ld", DynamicBuffer.offset);
-
-		/* Shift the buffer contents */
-		memmove(DynamicBuffer.data,
-		        DynamicBuffer.data + DynamicBuffer.offset,
-			DynamicBuffer.length);
-		DynamicBuffer.bytes_shifted += DynamicBuffer.offset;
-		DynamicBuffer.offset = 0;
-	} else {
-		size_t newsize = (DynamicBuffer.allocated << 2) + bytes;
-		void *p = MALLOC(newsize);
-		if(!p) {
-			perror("malloc()");
-			exit(EX_OSERR);
-		}
-		memcpy(p,
-			DynamicBuffer.data + DynamicBuffer.offset,
-			DynamicBuffer.length);
-		FREEMEM(DynamicBuffer.data);
-		DynamicBuffer.data = (char *)p;
-		DynamicBuffer.offset = 0;
-		DynamicBuffer.allocated = newsize;
-		DynamicBuffer.nreallocs++;
-		DEBUG("\tBuffer reallocated to %ld (%d time)",
-			newsize, DynamicBuffer.nreallocs);
-	}
-
-	memcpy(DynamicBuffer.data
-		+ DynamicBuffer.offset + DynamicBuffer.length,
-		data2add, bytes);
-	DynamicBuffer.length += bytes;
-	if(DynamicBuffer.unbits) {
-		int bits = DynamicBuffer.unbits;
-		DynamicBuffer.unbits = 0;
-		buffer_shift_left(DynamicBuffer.length - bytes, bits);
-	}
-
-	DEBUG("<= add_bytes(%ld) { o=%ld l=%ld u=%ld, s=%ld }",
-		(long)bytes,
-		(long)DynamicBuffer.offset,
-		(long)DynamicBuffer.length,
-		(long)DynamicBuffer.unbits,
-		(long)DynamicBuffer.allocated);
-}
-
-static void *
-data_decode_from_file(asn_TYPE_descriptor_t *pduType, FILE *file, const char *name, ssize_t suggested_bufsize, int on_first_pdu) {
-	static uint8_t *fbuf;
-	static ssize_t fbuf_size;
-	static asn_codec_ctx_t s_codec_ctx;
-	asn_codec_ctx_t *opt_codec_ctx = 0;
-	void *structure = 0;
-	asn_dec_rval_t rval;
-	size_t old_offset;	
-	size_t new_offset;
-	int tolerate_eof;
-	size_t rd;
-
-	if(!file) {
-		fprintf(stderr, "%s: %s\n", name, strerror(errno));
-		errno = EINVAL;
-		return 0;
-	}
-
-	if(opt_stack) {
-		s_codec_ctx.max_stack_size = opt_stack;
-		opt_codec_ctx = &s_codec_ctx;
-	}
-
-	DEBUG("Processing %s", name);
-
-	/* prepare the file buffer */
-	if(fbuf_size != suggested_bufsize) {
-		fbuf = (char *)REALLOC(fbuf, suggested_bufsize);
-		if(!fbuf) {
-			perror("realloc()");
-			exit(EX_OSERR);
-		}
-		fbuf_size = suggested_bufsize;
-	}
-
-	if(on_first_pdu) {
-		DynamicBuffer.offset = 0;
-		DynamicBuffer.length = 0;
-		DynamicBuffer.unbits = 0;
-		DynamicBuffer.allocated = 0;
-		DynamicBuffer.bytes_shifted = 0;
-		DynamicBuffer.nreallocs = 0;
-	}
-
-	old_offset = DynamicBuffer.bytes_shifted + DynamicBuffer.offset;
-
-	/* Pretend immediate EOF */
-	rval.code = RC_WMORE;
-	rval.consumed = 0;
-
-	for(tolerate_eof = 1;	/* Allow EOF first time buffer is non-empty */
-	    (rd = fread(fbuf, 1, fbuf_size, file))
-		|| feof(file) == 0
-		|| (tolerate_eof && DynamicBuffer.length)
-	    ;) {
-		int    ecbits = 0;	/* Extra consumed bits in case of PER */
-		char  *i_bptr;
-		size_t i_size;
-
-		/*
-		 * Copy the data over, or use the original buffer.
-		 */
-		if(DynamicBuffer.allocated) {
-			/* Append new data into the existing dynamic buffer */
-			add_bytes_to_buffer(fbuf, rd);
-			i_bptr = DynamicBuffer.data + DynamicBuffer.offset;
-			i_size = DynamicBuffer.length;
-		} else {
-			i_bptr = fbuf;
-			i_size = rd;
-		}
-
-		DEBUG("Decoding %ld bytes", (long)i_size);
-
-		switch(iform) {
-		case INP_BER:
-			rval = ber_decode(opt_codec_ctx, pduType,
-				(void **)&structure, i_bptr, i_size);
-			break;
-		case INP_XER:
-			rval = xer_decode(opt_codec_ctx, pduType,
-				(void **)&structure, i_bptr, i_size);
-			break;
-		case INP_PER:
-			rval = uper_decode(opt_codec_ctx, pduType,
-				(void **)&structure, i_bptr, i_size, 0,
-				DynamicBuffer.unbits);
-			ecbits = rval.consumed % 8;	/* Extra bits */
-			rval.consumed /= 8; /* Convert to value in bytes! */
-			/* Check if input is byte-padded at the end */
-			if(opt_ippad && ecbits && rval.code == RC_OK) {
-				rval.consumed++;
-				ecbits = 0;
-			}
-			break;
-		}
-		DEBUG("decode(%ld) consumed %ld+%db (%ld), code %d",
-			(long)DynamicBuffer.length,
-			(long)rval.consumed, ecbits, (long)i_size,
-			rval.code);
-
-		if(DynamicBuffer.allocated == 0) {
-			/*
-			 * Flush remainder into the intermediate buffer.
-			 */
-			if(rval.code != RC_FAIL && rval.consumed < rd) {
-				add_bytes_to_buffer(fbuf + rval.consumed,
-					rd - rval.consumed);
-				buffer_shift_left(0, ecbits);
-				DynamicBuffer.bytes_shifted = rval.consumed;
-				rval.consumed = 0;
-				ecbits = 0;
-			}
-		}
-
-		/*
-		 * Adjust position inside the source buffer.
-		 */
-		if(DynamicBuffer.allocated) {
-			DynamicBuffer.offset += rval.consumed;
-			DynamicBuffer.length -= rval.consumed;
-		} else {
-			DynamicBuffer.bytes_shifted += rval.consumed;
-		}
-
-		switch(rval.code) {
-		case RC_OK:
-			if(ecbits) buffer_shift_left(0, ecbits);
-			DEBUG("RC_OK, finishing up with %ld+%d",
-				(long)rval.consumed, ecbits);
-			return structure;
-		case RC_WMORE:
-			DEBUG("RC_WMORE, continuing read=%ld, cons=%ld "
-				" with %ld..%ld-%ld..%ld",
-				(long)rd,
-				(long)rval.consumed,
-				(long)DynamicBuffer.offset,
-				(long)DynamicBuffer.length,
-				(long)DynamicBuffer.unbits,
-				(long)DynamicBuffer.allocated);
-			if(!rd) tolerate_eof--;
-			continue;
-		case RC_FAIL:
-			break;
-		}
-		break;
-	}
-
-	/* Clean up partially decoded structure */
-	ASN_STRUCT_FREE(*pduType, structure);
-
-	new_offset = DynamicBuffer.bytes_shifted + DynamicBuffer.offset;
-
-	/*
-	 * Print a message and return failure only if not EOF,
-	 * unless this is our first PDU (empty file).
-	 */
-	if(on_first_pdu
-	|| DynamicBuffer.length
-	|| new_offset - old_offset > ((iform == INP_XER)?sizeof("\r\n")-1:0)
-	) {
-		DEBUG("ofp %d, no=%ld, oo=%ld, dbl=%ld",
-			on_first_pdu, (long)new_offset, (long)old_offset,
-			(long)DynamicBuffer.length);
-		fprintf(stderr, "%s: "
-			"Decode failed past byte %ld: %s\n",
-			name, (long)new_offset,
-			(rval.code == RC_WMORE)
-				? "Unexpected end of input"
-				: "Input processing error");
-#ifndef	ENOMSG
-#define	ENOMSG EINVAL
-#endif
-#ifndef	EBADMSG
-#define	EBADMSG EINVAL
-#endif
-		errno = (rval.code == RC_WMORE) ? ENOMSG : EBADMSG;
-	} else {
-		/* Got EOF after a few successful PDUs */
-		errno = 0;
-	}
-
-	return 0;
-}
-
-/* Dump the buffer out to the specified FILE */
-static int write_out(const void *buffer, size_t size, void *key) {
-	FILE *fp = (FILE *)key;
-	return (fwrite(buffer, 1, size, fp) == size) ? 0 : -1;
-}
-
-static int argument_is_stdin(char *av[], int idx) {
-	if(strcmp(av[idx], "-")) {
-		return 0;	/* Certainly not <stdin> */
-	} else {
-		/* This might be <stdin>, unless `./program -- -` */
-		if(strcmp(av[-1], "--"))
-			return 1;
-		else
-			return 0;
-	}
-}
-
-static FILE *argument_to_file(char *av[], int idx) {
-	return argument_is_stdin(av, idx)
-		? stdin
-		: fopen(av[idx], "r");
-}
-
-static char *argument_to_name(char *av[], int idx) {
-	return argument_is_stdin(av, idx)
-		? "standard input"
-		: av[idx];
-}