filterdb: report errors

1 files changed, 18 insertions, 5 deletions

diff --git a/src/filterdb.c b/src/filterdb.c
index c359ce6..0e842d3 100644
--- a/src/filterdb.c
+++ b/src/filterdb.c
@@ -3,8 +3,11 @@
 #include <string.h>
 #include <sys/mman.h>
 #include <sys/stat.h>
+#include <string.h>
+#include <errno.h>
 
 #include "filterdb.h"
+#include "reporting.h"
 
 #define PAGE_SIZE		4096
 #define ALIGN(s,a)		(((s) + a - 1) & ~(a - 1))
@@ -32,8 +35,10 @@ static int sqdb_allocate(struct sqdb *db, size_t s, int wr)
 		return old_size;
 	}
 
-	if (wr && ftruncate(db->fd, new_size) < 0)
+	if (wr && ftruncate(db->fd, new_size) < 0) {
+		report_error("Error occurred while resizing filter DB file: %s\n", strerror(errno));
 		return -1;
+	}
 
 	if (db->mmap_base == NULL) {
 		if (wr)
@@ -43,8 +48,10 @@ static int sqdb_allocate(struct sqdb *db, size_t s, int wr)
 		base = mremap(db->mmap_base, ALIGN(old_size, PAGE_SIZE),
 			      new_size, MREMAP_MAYMOVE);
 	}
-	if (base == MAP_FAILED)
+	if (base == MAP_FAILED) {
+		report_error("Couldn't map filter DB file into address space. Error: %s\n", strerror(errno));
 		return -1;
+	}
 
 	db->mmap_base = base;
 	db->file_length += ALIGN(s, 16);
@@ -57,10 +64,14 @@ int sqdb_open(struct sqdb *db, const char *fn)
 	struct stat st;
 
 	db->fd = open(fn, O_RDONLY);
-	if (db->fd < 0)
+	if (db->fd < 0) {
+		report_error("Couldn't open filter DB file. Error: %s\n", strerror(errno));
 		return -1;
+	}
 
-	fstat(db->fd, &st);
+	if(fstat(db->fd, &st) < 0)
+		report_error("Error occurred while checking file attributes of filter DB: %s\n",
+			strerror(errno));
 
 	db->file_length = 0;
 	db->mmap_base = NULL;
@@ -75,8 +86,10 @@ int sqdb_create(struct sqdb *db, const char *fn)
 	int rc;
 
 	db->fd = open(fn, O_CREAT | O_TRUNC | O_RDWR, 0666);
-	if (db->fd < 0)
+	if (db->fd < 0) {
+		report_error("Couldn't create filter DB file. Error: %s\n", strerror(errno));
 		return -1;
+	}
 
 	db->file_length = 0;
 	db->mmap_base = NULL;