X-Git-Url: https://pd.if.org/git/?a=blobdiff_plain;f=zpm-extract.c;fp=zpm-extract.c;h=e050bf230a89a88904a076e4a23bba5e7f127b79;hb=ecdd57da7df775c039aee834e1f74172004f352b;hp=0000000000000000000000000000000000000000;hpb=fa23ca4b77cd45ed4996eafc1fa714e12a72439e;p=zpackage

diff --git a/zpm-extract.c b/zpm-extract.c
new file mode 100644
index 0000000..e050bf2
--- /dev/null
+++ b/zpm-extract.c
@@ -0,0 +1,118 @@
+#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 "zpm.h"
+
+#if 1
+int main(int ac, char **av){
+	struct zpm pkg;
+	int mode = 0644;
+
+	if (ac < 3) {
+		fprintf(stderr, "usage: db hash file\n");
+		return 1;
+	}
+	zpm_open(&pkg, av[1]);
+	zpm_extract(&pkg, av[2], av[3], mode);
+	zpm_close(&pkg);
+}
+#else
+
+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;
+}
+#endif