GUACAMOLE-637: Clarify purpose of initial empty path component. Fix normalization logic to ensure that empty component is always present.
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@ -608,12 +608,16 @@ const char* guac_rdp_fs_read_dir(guac_rdp_fs* fs, int file_id) {
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int guac_rdp_fs_normalize_path(const char* path, char* abs_path) {
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int i;
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int path_depth = 1;
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char path_component_data[GUAC_RDP_FS_MAX_PATH];
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const char* path_components[GUAC_RDP_MAX_PATH_DEPTH] = { "" };
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char path_component_data[GUAC_RDP_FS_MAX_PATH];
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const char* current_path_component_data = &(path_component_data[0]);
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/* Always include a blank path component at the beginning, such that the
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* eventual call to guac_strljoin() will produce an absolute path (leading
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* backslash) */
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int path_depth = 1;
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const char* path_components[GUAC_RDP_MAX_PATH_DEPTH] = { "" };
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/* If original path is not absolute, normalization fails */
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if (path[0] != '\\' && path[0] != '/')
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return 1;
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@ -641,7 +645,7 @@ int guac_rdp_fs_normalize_path(const char* path, char* abs_path) {
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/* If component refers to parent, just move up in depth */
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if (strcmp(current_path_component_data, "..") == 0) {
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if (path_depth > 0)
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if (path_depth > 1)
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path_depth--;
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}
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