add sroot option to help text

[rrq/fuse_xattrs.git] / utils.c

diff --git a/utils.c b/utils.c
index 2f935ab83c02b4b326dcdcf491bdc47eeb570ece..a6a8b756f8b33cbb4dc37142e5abbb2db4fed459 100644 (file)
--- a/utils.c
+++ b/utils.c
@@ -15,18 +15,11 @@
 #include "utils.h"
 #include "fuse_xattrs_config.h"
 #include "xattrs_config.h"
+#include "stringmem.h"
 
 /* TODO: re-use memory to avoid calling malloc every time */
 char *prepend_source_directory(const char *b) {
-    const size_t b_size = strlen(b);
-    const size_t dst_len = xattrs_config.source_dir_size + b_size + 1;
-    char *dst = (char*) malloc(sizeof(char) * dst_len);
-
-    memcpy(dst, xattrs_config.source_dir, xattrs_config.source_dir_size);
-    memcpy(dst+xattrs_config.source_dir_size, b, b_size + 1); // include '\0'
-    //sprintf(dst, "%s%s", a, b);
-
-    return dst;
+    return strjoin( xattrs_config.source_dir, b, 0 );
 }
 
 int is_directory(const char *path) {
@@ -59,15 +52,15 @@ int is_regular_file(const char *path) {
 
 char *get_sidecar_path(const char *path)
 {
-    const size_t path_len = strlen(path);
-    const size_t sidecar_ext_len = strlen(BINARY_SIDECAR_EXT); // this can be optimized
-    const size_t sidecar_path_len = path_len + sidecar_ext_len + 1;
-    char *sidecar_path = (char *) malloc(sidecar_path_len);
-    memset(sidecar_path, '\0', sidecar_path_len);
-    memcpy(sidecar_path, path, path_len);
-    memcpy(sidecar_path + path_len, BINARY_SIDECAR_EXT, sidecar_ext_len);
-
-    return sidecar_path;
+#define CFG xattrs_config
+    if ( strncmp( path, CFG.source_dir, CFG.source_dir_size ) == 0 ) {
+       const char *p = path + CFG.source_dir_size;
+       if ( CFG.sidecar_dir ) {
+           return strjoin( CFG.sidecar_dir, p, BINARY_SIDECAR_EXT, 0 );
+       }
+    }
+    return strjoin( path, BINARY_SIDECAR_EXT, 0 );
+#undef CFG
 }
 
 // TODO: make it work for binary data