Remove warnings on Linux

2 files changed, 11 insertions, 7 deletions

diff --git a/c_src/Makefile b/c_src/Makefile
index 7c69de5..aa380cb 100644
--- a/c_src/Makefile
+++ b/c_src/Makefile
@@ -1,5 +1,5 @@
 CC = gcc
-CFLAGS = -Wall -Werror
+CFLAGS = -Wall -Werror -std=gnu99
 LDFLAGS = 
 
 PORTS = fsynchelper hsmhelper permdbport
diff --git a/c_src/permdb.c b/c_src/permdb.c
index ccac2f5..6267c51 100644
--- a/c_src/permdb.c
+++ b/c_src/permdb.c
@@ -51,7 +51,7 @@ void
 print_entry(node_object node)
 {
         for (int i = 0; i < entriespernode; i++) {
-                fprintf(stderr, " %016llx", node.data[i]);
+                fprintf(stderr, " %016llx", (long long unsigned int)node.data[i]);
         }
         fprintf(stderr, "\n");
 }
@@ -417,6 +417,10 @@ set_error(permdb_object *state, const char *format, ...)
         va_start(args, format);
         char *formatted = NULL;
         ret = vasprintf (&formatted, format, args);
+        if (ret == -1) {
+                fprintf(stderr, "vasprintf error\n");
+                return;
+        }
         if (state->error) {
                 free(state->error);
         }
@@ -454,20 +458,20 @@ read_internal_data(permdb_object *state, node_offset offset, unsigned int length
     if (offset >= file->filesize) {
             node_offset writebufferoffset = offset - file->filesize;
             if (offset + length > file->datasize) {
-                    set_error(state, "pread: not enough data for offset %llu and length %u\n", offset, length);
+                    set_error(state, "pread: not enough data for offset %llu and length %u\n", (long long unsigned int) offset, length);
                     return NULL;
             }
             memcpy(result, file->writebuffer + writebufferoffset, length);
     } else {
             if (offset + length > file->filesize) {
-                    set_error(state, "pread: trying to read over file/writebuffer boundary for offset %llu and length %u\n", offset, length);
+                    set_error(state, "pread: trying to read over file/writebuffer boundary for offset %llu and length %u\n", (long long unsigned int) offset, length);
                     return NULL;
             }
             
             int ret = pread(file->fd, result, length, offset);
             if (ret != length) {
                     free(result);
-                    set_error(state, "short pread: %u (wanted %u) at offset %llu\n", ret, length, offset);
+                    set_error(state, "short pread: %u (wanted %u) at offset %llu\n", ret, length, (long long unsigned int) offset);
                     return NULL;
             }
     }
@@ -514,7 +518,7 @@ readnode(permdb_object *state, node_offset offset, const char *cachekey)
         int ret = pread(state->indexfile.fd, buffer, length, offset);
         if (ret != length) {
                 free(buffer);
-                set_error(state, "node not present at %llu: length %d\n", offset, ret);
+                set_error(state, "node not present at %llu: length %d\n", (long long unsigned int) offset, ret);
                 return nullnode;
         }
         
@@ -574,7 +578,7 @@ getpath(permdb_object *state, const char *key, struct nodelist *nodes)
         node_object node = readnode(state, rootoffset, "");
 
         if (isnullnode(node)) {
-                fprintf(stderr, "cannot find root node at offset %llu (lastcommit %llu)\n", rootoffset, state->indexfile.lastcommit);
+                fprintf(stderr, "cannot find root node at offset %llu (lastcommit %llu)\n", (long long unsigned int) rootoffset, (long long unsigned int) state->indexfile.lastcommit);
                 if (nodes->pos >= nodes->len) {
                         fprintf(stderr, "tried to write after end of allocated list\n");
                         return -1;