X-Git-Url: https://git.rrq.au/?a=blobdiff_plain;f=binary_storage.c;h=e8eaba4564fba93768181f6a4c98d3e322715e34;hb=HEAD;hp=0f0289119baa719a38fff12eea2a920878cb0727;hpb=e69c1b55d384c0931aca7d58a88a402053ae6c18;p=rrq%2Ffuse_xattrs.git

diff --git a/binary_storage.c b/binary_storage.c
index 0f02891..e8eaba4 100644
--- a/binary_storage.c
+++ b/binary_storage.c
@@ -12,11 +12,15 @@
 #include <string.h>
 #include <errno.h>
 #include <assert.h>
+#include <unistd.h>
+#include <sys/stat.h>
+#include <sys/types.h>
 
 #include "binary_storage.h"
 #include "utils.h"
 #include "fuse_xattrs_config.h"
 #include "stringmem.h"
+#include "xattrs_config.h"
 
 #include <sys/xattr.h>
 
@@ -228,6 +232,36 @@ int __write_to_file(FILE *file, const char *name, const char *value, const size_
     return 0;
 }
 
+// Ensure existence of tail path from either source_dir or sidecar_dir
+static int ensure_dirs(char *path) {
+    int n = strlen( path );
+    char *p = stralloc( n+1 );
+    memcpy( p, path, n+1 );
+    char *e = p + 1;
+    if ( strncmp( path, xattrs_config.source_dir,
+		  xattrs_config.source_dir_size ) == 0 ) {
+	e += xattrs_config.source_dir_size;
+    } else if ( strncmp( path, xattrs_config.sidecar_dir,
+			 xattrs_config.sidecar_dir_size ) == 0 ) {
+	e += xattrs_config.sidecar_dir_size;
+    }
+    if ( e - p >= n ) {
+	return 0;
+    }
+    for ( ;; ) {
+	while ( *e && *e != '/' ) e++;
+	if ( *e ) {
+	    *e = 0;
+	    if ( access( p, F_OK ) && mkdir( p, 0777 ) ) {
+		return 1;
+	    }
+	    *(e++) = '/';
+	} else {
+	    return 0;
+	}
+    }
+}
+
 /**
  *
  * @param path - path to file.
@@ -259,6 +293,11 @@ int binary_storage_write_key(const char *path, const char *name, const char *val
 
     int status;
     char *sidecar_path = get_sidecar_path(path);
+
+    if ( ensure_dirs( sidecar_path ) ) {
+	return -ENOATTR;
+    }
+
     FILE *file = fopen(sidecar_path, "w");
     strfree(sidecar_path);