poldek: poldek/Cellar/minirpm.c (NEW) - found via google code

[mis]

Author: mis                          Date: Mon Jul  9 19:56:09 2007 GMT
Module: poldek                        Tag: HEAD
---- Log message:
- found via google code

---- Files affected:
poldek/poldek/Cellar:
   minirpm.c (NONE -> 1.1)  (NEW)

---- Diffs:

================================================================
Index: poldek/poldek/Cellar/minirpm.c
diff -u /dev/null poldek/poldek/Cellar/minirpm.c:1.1
--- /dev/null	Mon Jul  9 21:56:09 2007
+++ poldek/poldek/Cellar/minirpm.c	Mon Jul  9 21:56:04 2007
@@ -0,0 +1,150 @@
+/* Taken from http://laiskiainen.org/rpm/examples/minirpm.c */
+
+/*
+ * "Trivial rpm" for an example of using rpmlib for installing, upgrading
+ * and erasing packages by pmatilai at laiskiainen.org
+ *
+ * Usage: rpm [-i pkg] [-U pkg] -e [pkg] ...
+ * Compile with "gcc -o minirpm minirpm.c -lrpm"
+ */
+
+#include <fcntl.h>
+#include <rpm/rpmlib.h>
+#include <rpm/rpmts.h>
+#include <rpm/rpmcli.h>
+#include <rpm/rpmdb.h>
+
+int add_for_install(rpmts ts, char *file, int upgrade)
+{
+	FD_t fd;
+	Header hdr;
+	int rc = 0;
+
+	/* Read package header */
+	fd = Fopen(file, "r.ufdio");
+	if (fd == NULL) {
+		printf("Unable to open file %s\n", file);
+		return 1;
+	}
+	rc = rpmReadPackageFile(ts, fd, file, &hdr);
+	if (rc != RPMRC_OK) {
+		printf("Unable to read package %s\n", file);
+		return rc;
+	}
+	/* Add it to the transaction set */
+	rc = rpmtsAddInstallElement(ts, hdr, file, upgrade, 0);
+	if (rc) {
+		printf("Error adding %s to transaction\n", file);
+		goto out;
+	}
+out:
+	headerFree(hdr);
+	Fclose(fd);
+	return rc;
+}
+
+int add_for_erase(rpmts ts, char *name)
+{
+	Header hdr;
+	rpmdbMatchIterator mi;
+	int rc = 0;
+
+	/* Locate the package and add for erasure */
+	mi = rpmtsInitIterator(ts, (rpmTag)RPMDBI_LABEL, name, 0);
+	while ((hdr = rpmdbNextIterator(mi)) != NULL) {
+		int recOffset = rpmdbGetIteratorOffset(mi);
+		if (recOffset) {
+			rc = rpmtsAddEraseElement(ts, hdr, recOffset);
+			if (rc) 
+				printf("Error adding %s to transaction", name);
+
+		}
+	}
+	mi = rpmdbFreeIterator(mi);
+	return rc;	
+}
+
+int main(int argc, char **argv)
+{
+	rpmts ts;
+	rpmps probs;
+	int probFilter = 0;
+	int notifyFlags = 0;
+	int tsFlags = 0;
+	int rc = 0;
+	
+	/* Read configuration, initialize transaction */
+	rpmReadConfigFiles(NULL, NULL);
+	ts = rpmtsCreate();
+
+	/* Set verification flags if needed, for example --nomd5 */
+	/* rpmtsSetVSFlags(ts, rpmtsVSFlags(ts) | RPMVSF_NOMD5); */
+
+	/* Open rpmdb */
+	//rpmtsSetRootDir(ts, NULL);
+	rc = rpmtsOpenDB(ts, O_RDWR);
+	if (rc) {
+		printf("Error opening rpmdb\n");
+		goto exit;
+	}
+
+	/* Add packages for install/upgrade/erase */
+	while (optind < argc) {
+		int upgrade = 0;
+		switch (getopt(argc, argv, "i:U:e:")) {
+			case 'U':
+				upgrade = 1;
+			case 'i':
+				add_for_install(ts, optarg, upgrade);
+				break;
+			case 'e':
+				add_for_erase(ts, optarg);
+				break;
+			default:
+				printf("usage ...\n");
+				goto exit;
+		}
+	}
+
+	/* Set problem filters if needed, for example --oldpackage */
+	/* rpmbFilter |= RPMPROB_FILTER_OLDPACKAGE /*
+
+	/* Set transaction flags if needed, for example --excludedocs */
+	/* tsFlags |= RPMTRANS_FLAG_NODOCS */
+	
+	/* Check transaction sanity */
+	rc = rpmtsCheck(ts);
+	probs = rpmtsProblems(ts);
+	if (rc || rpmpsNumProblems(probs)) {
+		rpmpsPrint(NULL, probs);
+		rpmpsFree(probs);
+		goto exit;
+	}
+	
+        /* Create ordering for the transaction */
+	rc = rpmtsOrder(ts);
+	if (rc > 0) {
+		printf("Ordering failed\n");
+		goto exit;
+	}
+	rpmtsClean(ts);
+
+	/* Set callback routine & flags, for example -vh */
+	notifyFlags |= INSTALL_LABEL | INSTALL_HASH;
+	rpmtsSetNotifyCallback(ts, rpmShowProgress, (void *)notifyFlags);
+
+	/* Set transaction flags and run the actual transaction */
+	rpmtsSetFlags(ts, (rpmtransFlags)(rpmtsFlags(ts) | tsFlags));
+	rc = rpmtsRun(ts, NULL, (rpmprobFilterFlags)probFilter);
+	/* Check for results .. */
+   	if (rc || rpmpsNumProblems(probs) > 0)
+		rpmpsPrint(stderr, probs);
+	rpmpsFree(probs);
+
+exit:
+	/* ..and clean up */
+	rpmtsFree(ts);
+	exit(rc);
+}	
+		
+		
================================================================