X-Git-Url: https://pd.if.org/git/?a=blobdiff_plain;f=lib%2Fzpm.c;h=63ecc17632c46eefb37aa5137abe22421cb38c28;hb=2ac486ab18adbbb84563eafc0d67fa8da6ca7822;hp=87ffbbb3ebde53cf464a48fe5a9972883b8a1203;hpb=34c41d71027a3e94c1f613baeea2e74e038e0108;p=zpackage

diff --git a/lib/zpm.c b/lib/zpm.c
index 87ffbbb..63ecc17 100644
--- a/lib/zpm.c
+++ b/lib/zpm.c
@@ -15,140 +15,6 @@
 
 #include "sha256.h"
 
-#if 0
-struct zpm {
-	sqlite3 *db;
-	char *path; /* path to package file */
-	char *version;
-	int release;
-	char *pkgname;
-	time_t installed; /* install time, 0 for not installed */
-};
-
-struct zpm_file {
-	char *path;
-	int mode;
-	uint32_t filetype;
-	char *tags;
-	char *owner;
-	char *group;
-	char *hash; /* could be fixed length */
-	time_t mtime;
-	struct zpm_file *next; /* so you can make a linked list */
-};
-
-/* NULL?  Create? */
-/* associate with a package ? if only one?  first? */
-int zpm_open(struct zpm *pkg, char *path);
-int zpm_pkgname(char *base, char *version, int release); /* construct a package file name */
-
-/* flags for preserving mode, owner, etc */
-/* puts hash of import in hash */
-/* path can be a hash, with an "INTERNAL" flag, i.e. internally import */
-#define ZPM_MODE 0x1
-#define ZPM_OWNER 0x2
-#define ZPM_MTIME 0x4
-#define ZPM_INTERNAL 0x8
-#define ZPM_NOBLOB 0x10
-/* don't run scripts on install */
-#define ZPM_NOSCRIPTS 0x10
-/* don't associate the file with a package, just do a raw insert */
-/* otherwise, associate it with the current package */
-#define ZPM_NOPACKAGE 0x20
-
-int zpm_import(struct zpm *zp, char *path, uint32_t flags, uint8_t *hash);
-
-/* link and unlink hashes to packages */
-int zpm_link(struct zpm *pkg, char *path, char *hash, struct zpm_file *fileinfo);
-int zpm_unlink(struct zpm *pkg, char *path);
-
-/* tag a file.  relative to "current package" */
-int zpm_tag(struct zpm *zp, char *path, char *tags);
-/* should this be broken up into separage functions ? */
-int zpm_md(struct zpm *zp, char *path, int mode, char *owner, char *group, time_t mtime);
-
-/* export hash to dest */
-int zpm_extract(struct zpm *pkg, char *hash, char *path, int mode);
-
-/* export path to dest */
-int zpm_export(struct zpm *zp, char *path, uint32_t flags, char *dest);
-
-int zpm_close(struct zpm *zp);
-
-/* attach a signature to a package */
-int zpm_sign(struct zpm *z, size_t s, void *signature);
-
-/* set the package info to the nth package, -1 to return count? */
-/* further import/exports and such will be relative to this package */
-int zpm_package(struct zpm *zp, int n);
-
-/* get file information */
-int zpm_stat(struct zpm *z, struct zpm_file *f, int n);
-
-/* will also set the package context to the new package */
-int zpm_newpkg(struct zpm *z, char *base, char *version, int release);
-
-/* transactions */
-int zpm_begin(struct zpm *z);
-int zpm_commit(struct zpm *z);
-int zpm_rollback(struct zpm *z);
-
-/* higher level operations */
-
-/* install or uninstall the package */
-/* flag for keeping the blobs in local */
-/* what about tag filtering */
-int zpm_install(struct zpm *z, struct zpm *local, uint32_t flags);
-int zpm_uninstall(struct zpm *local);
-
-/* slurp up the actual blobs */
-/* what about versioning them if they change */
-int zpm_preserve(struct zpm *local);
-
-/* check file integrity */
-int zpm_checkinstall(struct zpm *local);
-
-int zpm_merge(struct zpm *z, struct zpm *src, uint32_t flags);
-
-void uncompresslzma(void *buf, size_t bufsize, FILE *out);
-#define SQLERROR(x) fprintf(stderr, "%s %d: %s\n", __func__, __LINE__, (x))
-#endif
-
-#if 0
-int zpm_newpkg(struct zpm *z, char *base, char *version, int release) {
-	char *sql = "insert or ignore into packages (package,version,release) values (?,?,?)";
-	int rc;
-	sqlite3_stmt *ifile;
-
-	rc = sqlite3_prepare(db, sql, -1, &ifile,0);
-	if (rc != SQLITE_OK) {
-		SQLERROR(sqlite3_errmsg(db));
-		return 0;
-	}
-	rc = sqlite3_bind_text(ifile, 1, base, strlen(base), SQLITE_STATIC);
-	if (rc != SQLITE_OK) {
-		SQLERROR(sqlite3_errmsg(db));
-		fprintf(stderr, "cant bind package name\n");
-		zpm_rollback(pkg);
-		return 0;
-	}
-	sqlite3_bind_text(ifile, 2, version, strlen(version), SQLITE_STATIC);
-	sqlite3_bind_int(ifile, 3, release)
-
-	rc = sqlite3_step(ifile);
-
-	if (rc != SQLITE_DONE) {
-		SQLERROR(sqlite3_errmsg(db));
-		sqlite3_finalize(ifile);
-		return 0;
-	}
-	sqlite3_finalize(ifile);
-	z->pkg = dupstr(base);
-	z->version = dupstr(version);
-	z->release = release;
-}
-#endif
-
 int zpm_begin(struct zpm *z) {
 	char *errstr = 0;
 	sqlite3_exec(z->db, "begin;", NULL, NULL, &errstr);
@@ -400,6 +266,14 @@ int zpm_open(struct zpm *zpm, char *path) {
 
 	zpm_clearmem(zpm);
 
+	if (!path) {
+		path = getenv("ZPMDB");
+	}
+
+	if (!path) {
+		path = "/var/lib/zpm/local.db";
+	}
+
 	rc = sqlite3_open_v2(path, &db, SQLITE_OPEN_READWRITE, NULL);
 	if (rc) {
 		SQLERROR(sqlite3_errmsg(db));
@@ -433,11 +307,26 @@ int zpm_close(struct zpm *pkg) {
 
 static int zpm_sqlite_vercmp(void *not_used, int lena, const void *a,
 		int lenb, const void *b) {
-	/* not sure what the ints are, possibly string lengths */
+	int rv;
+	char *bufa, *bufb;
+
 	if (not_used != 0) fprintf(stderr, "sqlite vercmp not_used = %p\n",
 			not_used);
 	if (lena == 0 && lenb > 0) return 1;
-	return zpm_vercmp(a, b);
+	if (lenb == 0 && lena > 0) return -1;
+
+	bufa = sqlite3_malloc(lena+1);
+	bufb = sqlite3_malloc(lenb+1);
+
+	strncpy(bufa, a, lena);
+	strncpy(bufb, b, lenb);
+	bufa[lena] = 0;
+	bufb[lenb] = 0;
+
+	rv = zpm_vercmp(bufa, bufb);
+	sqlite3_free(bufa);
+	sqlite3_free(bufb);
+	return rv;
 }
 
 int zpm_addvercmp(struct zpm *pkg) {
@@ -447,18 +336,25 @@ int zpm_addvercmp(struct zpm *pkg) {
 			);
 }
 
-int zpm_extract(struct zpm *pkg, char *hash, char *path, int mode) {
+int zpm_extract(struct zpm *pkg, char *hash, char *path, mode_t mode) {
 	int rc;
-
 	int blobsize;
-	//int64_t size;
 	void *xzdata;
 	int type;
-	FILE *out;
+	int out;
 	sqlite3_stmt *ifile;
+	size_t len;
+	char *tmpfile = 0;
+	sqlite3 *db;
 
-	/* TODO check null */
-	sqlite3 *db = pkg->db;
+	if (!pkg || !pkg->db) {
+		return 0;
+	}
+	db = pkg->db;
+
+	if (!path) {
+		path = "-";
+	}
 
 	rc = sqlite3_prepare(db, "select size, content from files where hash = ?", -1, &ifile,0);
 	if (rc != SQLITE_OK) {
@@ -507,26 +403,57 @@ int zpm_extract(struct zpm *pkg, char *hash, char *path, int mode) {
 	blobsize = sqlite3_column_bytes(ifile, 1);
 
 	if (strcmp(path, "-")) {
-		out = fopen(path, "w");
+		len = strlen(path);
+		tmpfile = malloc(len+8+1);
+		if (!tmpfile) {
+			fprintf(stderr, "malloc error\n");
+			return 0;
+		}
+		sprintf(tmpfile, "%sXXXXXX", path);
+
+		out = open(tmpfile, O_CREAT|O_WRONLY|O_TRUNC, 0600);
+		if (out == -1) {
+			fprintf(stderr, "can't open output file %s: %s\n",
+					tmpfile, strerror(errno));
+			sqlite3_finalize(ifile);
+		       	sqlite3_close(db);
+			free(tmpfile);
+		       	return 0;
+		}
 	} else {
-		out = stdout;
+		out = 1;
 	}
-	if (!out) {
-		fprintf(stderr, "can't open output file %s\n", path);
-		sqlite3_finalize(ifile);
-		sqlite3_close(db);
-		return 0;
-	}
-	//fwrite(xzdata, blobsize, 1, stdout);
 
-	//fprintf(stderr, "uncompressing %d bytes at %p, expect %lld\n", blobsize, xzdata, (long long int)size);
+#if 0
+	fprintf(stderr, "uncompressing %d bytes at %p, expect %lld\n", blobsize, xzdata, (long long int)size);
+#endif
 	uncompresslzma(xzdata, blobsize, out);
-	fclose(out);
-	chmod(path, mode);
-
+	close(out);
 	sqlite3_finalize(ifile);
 
-	return 1;
+	rc = 1;
+	if (tmpfile) {
+		if (chmod(tmpfile, mode) == -1) {
+			fprintf(stderr, "can't chmod %s: %s\n", tmpfile,
+					strerror(errno));
+			rc = 0;
+		} else if (rename(tmpfile, path) == -1) {
+			fprintf(stderr, "extract rename failed: %s\n",
+					strerror(errno));
+			rc = 0;
+		}
+	}
+
+	if (rc == 0 && tmpfile) {
+		if (unlink(tmpfile) == -1) {
+			fprintf(stderr, "unlink tmpfile %s fail: %s\n",
+					tmpfile,
+					strerror(errno));
+		}
+	}
+
+	free(tmpfile);
+	return rc;
 }
 
 static int run_for_hash(sqlite3 *db, char *sql, char *hash) {
@@ -553,107 +480,99 @@ static int run_for_hash(sqlite3 *db, char *sql, char *hash) {
 
 #define SQLERP(db, msg) fprintf(stderr, "%s: %s\n", msg, sqlite3_errmsg(db))
 
-static int set_elf_info(sqlite3 *db, char *hash, char *content, size_t length) {
-	if (length >= sizeof (Elf64_Ehdr) && libelf_iself(content)) {
-		char *strtab;
-		Elf64_Dyn *dyn;
-		int i;
-		Elf64_Phdr *phdr;
-		Elf64_Ehdr *hdr;
-		sqlite3_stmt *ifile;
-		int rc;
+static int set_elf_info(struct zpm *zpm, char *hash, char *content,
+	       	size_t length) {
 
-		/* clear existing for this hash */
+	char *strtab;
+	Elf64_Dyn *dyn;
+	int i;
+	Elf64_Phdr *phdr;
+	Elf64_Ehdr *hdr;
+	sqlite3_stmt *ifile;
+	sqlite3 *db = zpm->db;
 
-		if (!run_for_hash(db, "delete from elflibraries where file = ?", hash)) {
-			SQLERP(db, "error clearing elf library");
-			return 0;
-		}
+	if (length < sizeof (Elf64_Ehdr) || !libelf_iself(content)) {
+		/* not an elf file */
+		return 1;
+	}
 
-		if (!run_for_hash(db, "delete from elfneeded where file = ?", hash)) {
-			SQLERP(db, "error clearing elf needed");
-			return 0;
-		}
+	/* clear existing for this hash */
 
-		hdr = libelf_header(content);
-		/* if lib, set soname */
-		if (libelf_type(content) == ET_DYN) {
-			char *soname = libelf_soname(content);
-			if (soname) {
+	if (!run_for_hash(db, "delete from elflibraries where file = ?", hash)) {
+		SQLERP(db, "error clearing elf library");
+		return 0;
+	}
 
-				sqlite3_prepare_v2(db, "insert into elflibraries (file,soname) values (?,?)",-1, &ifile, 0);
-				sqlite3_bind_text(ifile,1,hash,64,SQLITE_STATIC);
-				sqlite3_bind_text(ifile,2,soname,-1,SQLITE_STATIC);
-				rc = sqlite3_step(ifile);
-				if (rc != SQLITE_DONE) {
-					SQLERROR(sqlite3_errmsg(db));
-					sqlite3_finalize(ifile);
-					fprintf(stderr, "error setting library soname\n");
-					return 0;
-				}
-				sqlite3_finalize(ifile);
-			} else {
-				fprintf(stderr, "can't find soname\n");
-			}
-		}
+	if (!run_for_hash(db, "delete from elfneeded where file = ?", hash)) {
+		SQLERP(db, "error clearing elf needed");
+		return 0;
+	}
 
-		/* if exe, set neededs */
-		if (libelf_type(content) == ET_EXEC) {
-			Elf64_Shdr *dsect = 0;
-			char *elf;
-
-			elf = (char *)content;
-			/* find program header table */
-			for (i = 0; i < hdr->e_phnum; i++) {
-				phdr = (Elf64_Phdr *)(elf + hdr->e_phoff + i * hdr->e_phentsize);
-				if (phdr->p_type == PT_DYNAMIC) {
-					dsect = (Elf64_Shdr *)(elf + phdr->p_offset);
-				}
+	hdr = libelf_header(content);
+	/* if lib, set soname */
+	if (libelf_type(content) == ET_DYN) {
+		char *soname = libelf_soname(content);
+		if (soname) {
+			zpm_db_run(zpm, "insert into elflibraries (file,soname) values (%Q,%Q);", hash, soname);
+			if (zpm->error) {
+				return 0;
 			}
-			if (!dsect) {
-				/* no dynamic section found */
-				return 1;
+		}
+		/* some dyn don't have an soname, so we don't
+		 * need to warn */
+	}
+
+	/* if exe, set neededs */
+	/* libraries can have neededs too */
+	if (libelf_type(content) == ET_EXEC || libelf_type(content) == ET_DYN) {
+		Elf64_Shdr *dsect = 0;
+		char *elf;
+
+		elf = (char *)content;
+		/* find program header table */
+		for (i = 0; i < hdr->e_phnum; i++) {
+			phdr = (Elf64_Phdr *)(elf + hdr->e_phoff + i * hdr->e_phentsize);
+			if (phdr->p_type == PT_DYNAMIC) {
+				dsect = (Elf64_Shdr *)(elf + phdr->p_offset);
 			}
+		}
+		if (!dsect) {
+			/* no dynamic section found */
+			return 1;
+		}
 
-#if 0
-			dyn = (Elf64_Dyn *)(elf + dsect->sh_offset);
-			if (!dyn) {
-				exit(9);
-			}
-#endif
-			dyn = (Elf64_Dyn *)dsect;
+		dyn = (Elf64_Dyn *)dsect;
 
-			dsect = libelf_section(elf, SHT_DYNAMIC);
-			Elf64_Shdr *strsect;
+		dsect = libelf_section(elf, SHT_DYNAMIC);
+		Elf64_Shdr *strsect;
 
-			strsect = libelf_section_n(elf, dsect->sh_link);
-			strtab = elf + strsect->sh_offset;
+		strsect = libelf_section_n(elf, dsect->sh_link);
+		strtab = elf + strsect->sh_offset;
 
-			sqlite3_prepare_v2(db, "insert into elfneeded (file,needed) values (?,?)",-1, &ifile, 0);
-			sqlite3_bind_text(ifile,1,hash,64,SQLITE_STATIC);
-			while (dyn->d_tag != DT_NULL) {
-				if (dyn->d_tag == DT_NEEDED) {
-					char *need;
-					int rc;
+		sqlite3_prepare_v2(db, "insert into elfneeded (file,needed) values (?,?)",-1, &ifile, 0);
+		sqlite3_bind_text(ifile,1,hash,64,SQLITE_STATIC);
+		while (dyn->d_tag != DT_NULL) {
+			if (dyn->d_tag == DT_NEEDED) {
+				char *need;
+				int rc;
 
-					need = strtab + dyn->d_un.d_val;
-					if (strlen(need) == 0) continue;
-					sqlite3_bind_text(ifile,2,need,strlen(need),SQLITE_STATIC);
+				need = strtab + dyn->d_un.d_val;
+				if (strlen(need) == 0) continue;
+				sqlite3_bind_text(ifile,2,need,strlen(need),SQLITE_STATIC);
 #if 0
-					fprintf(stderr, "%s needs %s\n", hash, need);
+				fprintf(stderr, "%s needs %s\n", hash, need);
 #endif
-					rc = sqlite3_step(ifile);
-					if (rc != SQLITE_DONE) {
-						SQLERP(db, "error setting needed library");
-						sqlite3_finalize(ifile);
-						return 0;
-					}
-					sqlite3_reset(ifile);
+				rc = sqlite3_step(ifile);
+				if (rc != SQLITE_DONE) {
+					SQLERP(db, "error setting needed library");
+					sqlite3_finalize(ifile);
+					return 0;
 				}
-				dyn++;
+				sqlite3_reset(ifile);
 			}
-			sqlite3_finalize(ifile);
+			dyn++;
 		}
+		sqlite3_finalize(ifile);
 	}
 	return 1;
 }
@@ -662,11 +581,9 @@ int zpm_import(struct zpm *zpm, char *path, uint32_t flags, char *hash) {
 	int fd;
 	void *content = 0;
 	struct stat sbuf;
-	unsigned char tmp[32];
-	struct sha256_state md;
 	sqlite3_stmt *ifile = 0;
 	int haverow = 0,havedata = 0;
-	int j,rc,type;
+	int rc,type;
 	char hashbuf[65];
 
 	/* xz compress it */
@@ -723,13 +640,7 @@ int zpm_import(struct zpm *zpm, char *path, uint32_t flags, char *hash) {
 		return 0;
 	}
 
-	/* get hash */
-	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]);
-	}
+	zpm_hash_mem(content, sbuf.st_size, hash);
 	hash[64] = 0;
 
 	/* TODO check null */
@@ -782,12 +693,14 @@ int zpm_import(struct zpm *zpm, char *path, uint32_t flags, char *hash) {
 
 	if (!havedata) {
 		/* compress */
+//		fprintf(stderr, "compressing\n");
 		outbuf = compresslzma(content, sbuf.st_size, &outlen);
 		if (!outbuf) {
 			fprintf(stderr, "compresslzma failed\n");
 			munmap(content, sbuf.st_size);
 			return 0;
 		}
+////		fprintf(stderr, "compress finished\n");
 
 		/* insert */
 		if (haverow) {
@@ -843,7 +756,7 @@ int zpm_import(struct zpm *zpm, char *path, uint32_t flags, char *hash) {
 		/* don't need the original file now */
 	}
 
-	if (!set_elf_info(zpm->db, hash, content, sbuf.st_size)) {
+	if (!set_elf_info(zpm, hash, content, sbuf.st_size)) {
 		fprintf(stderr, "setting elf info failed\n");
 		munmap(content, sbuf.st_size);
 		return 0;