1 files changed, 67 insertions, 0 deletions
diff --git a/src/pacman/db.c b/src/pacman/db.c
index e16bd901..42b93d05 100644
--- a/src/pacman/db.c
+++ b/src/pacman/db.c
@@ -34,6 +34,73 @@
 #include "sync.h"
 #include "db.h"
 
+/* reads dbpath/.lastupdate and populates *ts with the contents.
+ * *ts should be malloc'ed and should be at least 15 bytes.
+ *
+ * Returns 0 on success, 1 on error
+ *
+ */
+int db_getlastupdate(PM_DB *db, char *ts)
+{
+	FILE *fp;
+	char *root, *dbpath, *treename;
+	char file[PATH_MAX];
+
+	if(db == NULL || ts == NULL) {
+		return(-1);
+	}
+
+	alpm_get_option(PM_OPT_ROOT, (long *)&root);
+	alpm_get_option(PM_OPT_DBPATH, (long *)&dbpath);
+	treename = alpm_db_getinfo(db, PM_DB_TREENAME);
+	snprintf(file, PATH_MAX, "%s%s/%s/.lastupdate", root, dbpath, treename);
+
+	/* get the last update time, if it's there */
+	if((fp = fopen(file, "r")) == NULL) {
+		return(-1);
+	} else {
+		char line[256];
+		if(fgets(line, sizeof(line), fp)) {
+			STRNCPY(ts, line, 15); /* YYYYMMDDHHMMSS */
+			ts[14] = '\0';
+		} else {
+			fclose(fp);
+			return(-1);
+		}
+	}
+	fclose(fp);
+	return(0);
+}
+
+/* writes the dbpath/.lastupdate with the contents of *ts
+ */
+int db_setlastupdate(PM_DB *db, char *ts)
+{
+	FILE *fp;
+	char *root, *dbpath, *treename;
+	char file[PATH_MAX];
+
+	if(db == NULL || ts == NULL || strlen(ts) == 0) {
+		return(-1);
+	}
+
+	alpm_get_option(PM_OPT_ROOT, (long *)&root);
+	alpm_get_option(PM_OPT_DBPATH, (long *)&dbpath);
+	treename = alpm_db_getinfo(db, PM_DB_TREENAME);
+	snprintf(file, PATH_MAX, "%s%s/%s/.lastupdate", root, dbpath, treename);
+
+	if((fp = fopen(file, "w")) == NULL) {
+		return(-1);
+	}
+	if(fputs(ts, fp) <= 0) {
+		fclose(fp);
+		return(-1);
+	}
+	fclose(fp);
+
+	return(0);
+}
+
 int db_search(PM_DB *db, const char *treename, list_t *needles)
 {
 	list_t *i;