From: Nathan Wagner <nw@hydaspes.if.org>
Date: Mon, 11 Feb 2019 13:57:18 +0000 (+0000)
Subject: remove unused file
X-Git-Tag: v0.5.0~19
X-Git-Url: https://pd.if.org/git/?p=zpackage;a=commitdiff_plain;h=ddf74592701b3eed8b2bcc0793c454cecce5d0d5

remove unused file
---

diff --git a/zpm-extractfile.c b/zpm-extractfile.c
deleted file mode 100644
index 68ab0e1..0000000
--- a/zpm-extractfile.c
+++ /dev/null
@@ -1,381 +0,0 @@
-/*
- * add a file/files to an sqlite db
- * in the 'files' table.
- */
-
-#include <stdio.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include <unistd.h>
-#include <errno.h>
-
-#include <sys/mman.h>
-
-#include <sqlite3.h>
-#include "sha256.h"
-
-#include "lzma.h"
-
-
-void uncompresslzma(void *buf, size_t bufsize, FILE *out) {
-	lzma_stream s = LZMA_STREAM_INIT;
-	lzma_stream *strm;
-	
-	uint8_t outbuf[BUFSIZ];
-
-	int ret;
-
-	strm = &s;
-
-	ret = lzma_stream_decoder(strm, UINT64_MAX, 0);
-	/* The only reasonable error here is LZMA_MEM_ERROR. */
-	if (ret != LZMA_OK) {
-		fprintf(stderr, "%s", ret == LZMA_MEM_ERROR ? strerror(ENOMEM)
-				: "Internal error (bug)");
-		exit(EXIT_FAILURE);
-	}
-
-	strm->avail_in = bufsize;
-	strm->next_in = buf;
-	strm->avail_out = BUFSIZ;
-	strm->next_out = outbuf;
-
-        lzma_action action = LZMA_RUN;
-
-	while (1) {
-		ret = lzma_code(strm, action);
-
-		// Write and check write error before checking decoder error.
-		// This way as much data as possible gets written to output
-		// even if decoder detected an error.
-		if (strm->avail_out == 0 || ret != LZMA_OK) {
-			const size_t write_size = BUFSIZ - strm->avail_out;
-
-			if (fwrite(outbuf, 1, write_size, out) != write_size) {
-				// Wouldn't be a surprise if writing to stderr
-				// would fail too but at least try to show an
-				// error message.
-				fprintf(stderr, "Cannot write to output file stream: "
-						"%s", strerror(errno));
-				exit(EXIT_FAILURE);
-			}
-
-			strm->next_out = outbuf;
-			strm->avail_out = BUFSIZ;
-		}
-
-		if (ret != LZMA_OK) {
-			if (ret == LZMA_STREAM_END) {
-				// lzma_stream_decoder() already guarantees
-				// that there's no trailing garbage.
-				assert(strm->avail_in == 0);
-				//assert(action == LZMA_FINISH);
-				return;
-			}
-
-			const char *msg;
-			switch (ret) {
-				case LZMA_MEM_ERROR:
-					msg = strerror(ENOMEM);
-					break;
-
-				case LZMA_FORMAT_ERROR:
-					msg = "File format not recognized";
-					break;
-
-				case LZMA_OPTIONS_ERROR:
-					// FIXME: Better message?
-					msg = "Unsupported compression options";
-					break;
-
-				case LZMA_DATA_ERROR:
-					msg = "File is corrupt";
-					break;
-
-				case LZMA_BUF_ERROR:
-					msg = "Unexpected end of input";
-					break;
-
-				default:
-					msg = "Internal error (bug)";
-					break;
-			}
-
-			fprintf(stderr, "xz: %s\n", msg);
-			exit(EXIT_FAILURE);
-		}
-	}
-}
-
-#define SQLERROR(x) fprintf(stderr, "%s %d: %s\n", __func__, __LINE__, (x))
-
-int main(int ac, char **av){
-	sqlite3 *db = 0;
-	int rc;
-
-	int blobsize;
-	int64_t size;
-	void *xzdata;
-	int type;
-	FILE *out;
-	sqlite3_stmt *ifile;
-
-	char *hash;
-	char *filename;
-
-	if (ac < 3) {
-		fprintf(stderr, "usage: db hash file\n");
-		return 1;
-	}
-
-	rc = sqlite3_open(av[1], &db);
-	if (rc) {
-		SQLERROR(sqlite3_errmsg(db));
-		sqlite3_close(db);
-		return 1;
-	}
-
-	rc = sqlite3_prepare(db, "select size, content from files where hash = ?", -1, &ifile,0);
-	if (rc != SQLITE_OK) {
-		SQLERROR(sqlite3_errmsg(db));
-		return 1;
-	}
-
-	/* hash, filename */
-	hash = av[2];
-	filename = av[3];
-
-	sqlite3_bind_text(ifile, 1, hash, 64, SQLITE_STATIC);
-
-	rc = sqlite3_step(ifile);
-
-	if (rc == SQLITE_DONE) {
-		/* didn't find a row */
-		sqlite3_finalize(ifile);
-		sqlite3_close(db);
-		fprintf(stderr, "no such hash\n");
-		return 1;
-	}
-	/* either way we're done with this now */
-
-	if (rc != SQLITE_ROW) {
-		SQLERROR(sqlite3_errmsg(db));
-		sqlite3_finalize(ifile);
-		sqlite3_close(db);
-		return 2;
-	}
-
-	type = sqlite3_column_type(ifile, 0);
-	if (type == SQLITE_NULL) {
-		fprintf(stderr, "no file size\n");
-		sqlite3_finalize(ifile);
-		sqlite3_close(db);
-		return 3;
-	}
-	type = sqlite3_column_type(ifile, 1);
-	if (type == SQLITE_NULL) {
-		fprintf(stderr, "no file data\n");
-		sqlite3_finalize(ifile);
-		sqlite3_close(db);
-		return 4;
-	}
-	size = sqlite3_column_int64(ifile, 0);
-	xzdata = (void *)sqlite3_column_blob(ifile, 1);
-	blobsize = sqlite3_column_bytes(ifile, 1);
-
-	out = fopen(filename, "w");
-	if (!out) {
-		fprintf(stderr, "can't open output file %s\n", filename);
-		sqlite3_finalize(ifile);
-		sqlite3_close(db);
-		return 5;
-	}
-	//fwrite(xzdata, blobsize, 1, stdout);
-
-	fprintf(stderr, "uncompressing %d bytes at %p, expect %lld\n", blobsize, xzdata, (long long int)size);
-	uncompresslzma(xzdata, blobsize, out);
-	fclose(out);
-
-	sqlite3_finalize(ifile);
-	sqlite3_close(db);
-	return 0;
-}
-void *compresslzma(void *buf, size_t bufsize, size_t *len) {
-	/* xz compress it */
-	size_t outsize;
-	void *outbuf;
-	size_t outlen = 0;
-
-	outsize = lzma_stream_buffer_bound(bufsize);
-	outbuf = malloc(outsize);
-	if (!outbuf) {
-		*len = 0;
-		return NULL;
-	}
-	/* TODO adjust encoding level for size */
-	lzma_easy_buffer_encode(6, LZMA_CHECK_CRC64, NULL,
-			buf, bufsize,
-			outbuf, &outlen, outsize
-			);
-	*len = outlen;
-	return outbuf;
-}
-
-static int callback(void *NotUsed, int argc, char **argv, char **azColName){
-	int i;
-	for(i=0; i<argc; i++){
-		printf("%s = %s\n", azColName[i], argv[i] ? argv[i] : "NULL");
-	}
-	printf("\n");
-	return 0;
-}
-
-static char *create_table = "create table if not exists files (hash text primary key, size integer, compression text, content blob)";
-
-struct dbh {
-	sqlite3 *db;
-	char *errmsg;
-	int rc;
-};
-
-#define SQLERROR(x) fprintf(stderr, "%s %d: %s\n", __func__, __LINE__, (x))
-static int begin(sqlite3 *db) {
-	int rc;
-	char *err;
-
-	rc = sqlite3_exec(db, "begin;", callback, 0, &err);
-	if (rc != SQLITE_OK) {
-		SQLERROR(err);
-		sqlite3_free(err);
-	}
-	return rc;
-}
-
-static int commit(sqlite3 *db) {
-	int rc;
-	char *err;
-
-	rc = sqlite3_exec(db, "commit;", callback, 0, &err);
-	if (rc != SQLITE_OK) {
-		SQLERROR(err);
-		sqlite3_free(err);
-	}
-	return rc;
-}
-static int rollback(sqlite3 *db) {
-	int rc;
-	char *err;
-
-	rc = sqlite3_exec(db, "rollback;", callback, 0, &err);
-	if (rc != SQLITE_OK) {
-		SQLERROR(err);
-		sqlite3_free(err);
-	}
-	return rc;
-}
-
-int main(int ac, char **av){
-	sqlite3 *db = 0;
-	char *errmsg = 0;
-	int rc, i, j;
-
-	rc = sqlite3_open(av[1], &db);
-	if (rc) {
-		SQLERROR(sqlite3_errmsg(db));
-		sqlite3_close(db);
-		return 1;
-	}
-
-	rc = sqlite3_exec(db, create_table, callback, 0, &errmsg);
-	if (rc != SQLITE_OK) {
-		SQLERROR(errmsg);
-		sqlite3_free(errmsg);
-		sqlite3_close(db);
-		return 1;
-	}
-
-	sqlite3_stmt *ifile;
-
-	rc = sqlite3_prepare(db, "insert or ignore into files (hash,size,compression,content) values (?,?,?,?)", -1, &ifile,0);
-	if (rc != SQLITE_OK) {
-		SQLERROR(sqlite3_errmsg(db));
-		return 1;
-	}
-
-	begin(db);
-	/* insert each file */
-	for (i = 2; i < ac; i++) {
-		int fd;
-		void *content;
-		struct stat sbuf;
-		unsigned char tmp[32];
-		char hash[65];
-		hash_state md;
-
-		fd = open(av[i], O_RDONLY);
-		if (fd == -1) {
-			rollback(db);
-			sqlite3_close(db);
-			exit(1);
-		}
-		if (fstat(fd, &sbuf) == -1) {
-			rollback(db);
-			sqlite3_close(db);
-			exit(1);
-		}
-		/* not a regular file? */
-		if (!S_ISREG(sbuf.st_mode)) {
-			rollback(db);
-			sqlite3_close(db);
-			exit(1);
-		}
-
-		content = mmap(0, sbuf.st_size, PROT_READ,MAP_PRIVATE, fd, 0);
-		if (!content) {
-			rollback(db);
-			sqlite3_close(db);
-			exit(2);
-		}
-
-		sha256_init(&md);
-		sha256_process(&md, content, sbuf.st_size);
-		sha256_done(&md, tmp);
-		for (j=0;j<32;j++) {
-			sprintf(hash+j*2, "%02x", (unsigned)tmp[j]);
-		}
-		hash[64] = 0;
-		//fprintf(stderr, "file %s: %s\n", av[i], hash);
-
-		void *xzcompressed;
-		size_t compresslen;
-
-		xzcompressed = compresslzma(content, sbuf.st_size, &compresslen);
-
-		sqlite3_bind_text(ifile, 1, hash, 64, SQLITE_STATIC);
-		sqlite3_bind_int64(ifile, 2, sbuf.st_size);
-		sqlite3_bind_text(ifile, 3, "xz", 2, SQLITE_STATIC);
-		sqlite3_bind_blob64(ifile, 4, xzcompressed, compresslen, SQLITE_STATIC);
-
-		rc = sqlite3_step(ifile);
-
-		/* either way we're done with this now */
-		munmap(content, sbuf.st_size);
-
-		if (rc != SQLITE_DONE) {
-			SQLERROR(sqlite3_errmsg(db));
-			sqlite3_finalize(ifile);
-			rollback(db);
-			sqlite3_close(db);
-			return 1;
-		}
-		sqlite3_reset(ifile);
-		free(xzcompressed);
-		printf("%s\n", hash);
-	}
-	sqlite3_finalize(ifile);
-	commit(db);
-
-	sqlite3_close(db);
-	return 0;
-}