From 0135734e41046c051a018d6c5d97e1b6ea7638b5 Mon Sep 17 00:00:00 2001 From: David Oberhollenzer Date: Wed, 19 Jun 2019 14:37:43 +0200 Subject: Cleanup: split up fstree.c Signed-off-by: David Oberhollenzer --- lib/fstree/mknode.c | 72 +++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 72 insertions(+) create mode 100644 lib/fstree/mknode.c (limited to 'lib/fstree/mknode.c') diff --git a/lib/fstree/mknode.c b/lib/fstree/mknode.c new file mode 100644 index 0000000..247e2b5 --- /dev/null +++ b/lib/fstree/mknode.c @@ -0,0 +1,72 @@ +/* SPDX-License-Identifier: GPL-3.0-or-later */ +#include "fstree.h" + +#include +#include + +tree_node_t *fstree_mknode(fstree_t *fs, tree_node_t *parent, const char *name, + size_t name_len, const char *extra, + const struct stat *sb) +{ + size_t size = sizeof(tree_node_t); + tree_node_t *n; + char *ptr; + + switch (sb->st_mode & S_IFMT) { + case S_IFLNK: + size += strlen(extra) + 1; + break; + case S_IFDIR: + size += sizeof(*n->data.dir); + break; + case S_IFREG: + size += sizeof(*n->data.file); + size += (sb->st_size / fs->block_size) * sizeof(uint32_t); + if (extra != NULL) + size += strlen(extra) + 1; + break; + } + + n = calloc(1, size + name_len + 1); + if (n == NULL) + return NULL; + + if (parent != NULL) { + n->next = parent->data.dir->children; + parent->data.dir->children = n; + n->parent = parent; + } + + n->uid = sb->st_uid; + n->gid = sb->st_gid; + n->mode = sb->st_mode; + + switch (sb->st_mode & S_IFMT) { + case S_IFDIR: + n->data.dir = (dir_info_t *)n->payload; + break; + case S_IFREG: + n->data.file = (file_info_t *)n->payload; + n->data.file->size = sb->st_size; + if (extra == NULL) + break; + + ptr = (char *)n->data.file->blocksizes; + ptr += (sb->st_size / fs->block_size) * sizeof(uint32_t); + n->data.file->input_file = ptr; + strcpy(n->data.file->input_file, extra); + break; + case S_IFLNK: + n->data.slink_target = (char *)n->payload; + strcpy(n->data.slink_target, extra); + break; + case S_IFBLK: + case S_IFCHR: + n->data.devno = sb->st_rdev; + break; + } + + n->name = (char *)n + size; + memcpy(n->name, name, name_len); + return n; +} -- cgit v1.2.3