From b3d855b2712cd712b7dd74b818497eb30097c5ff Mon Sep 17 00:00:00 2001 From: Des Date: Fri, 9 Aug 2024 13:29:43 -0300 Subject: [PATCH] Add FS_RenameOnClose, to be able to mark open files for renaming on closing. --- fs.c | 35 ++++++++++++++++++++++++++++++++++- fs.h | 1 + 2 files changed, 35 insertions(+), 1 deletion(-) diff --git a/fs.c b/fs.c index 57828961..1c1b5ef6 100644 --- a/fs.c +++ b/fs.c @@ -298,6 +298,8 @@ typedef struct #define QFILE_FLAG_DATA (1 << 2) /// real file will be removed on close #define QFILE_FLAG_REMOVE (1 << 3) +/// real file will be renamed on close to reanameto +#define QFILE_FLAG_RENAME (1 << 4) #define FILE_BUFF_SIZE 2048 typedef struct @@ -326,7 +328,9 @@ struct qfile_s const unsigned char *data; ///< For data files. - const char *filename; ///< Kept around for QFILE_FLAG_REMOVE, unused otherwise + const char *filename; ///< Kept around for QFILE_FLAG_REMOVE and QFILE_FLAG_RENAME, unused otherwise + char *renameto; ///< For QFILE_FLAG_RENAME + const char *mode; ///< Kept around for QFILE_FLAG_RENAME, unused otherwise }; @@ -2491,6 +2495,7 @@ qfile_t* FS_SysOpen (const char* filepath, const char* mode, qbool nonblocking) } file->filename = Mem_strdup(fs_mempool, filepath); + file->mode = Mem_strdup(fs_mempool, mode); file->real_length = FILEDESC_SEEK (file->handle, 0, SEEK_END); @@ -2986,10 +2991,20 @@ int FS_Close (qfile_t* file) // like. } } + if (file->flags & QFILE_FLAG_RENAME && file->renameto) + { + FS_CreatePath (file->renameto); + if (rename(file->filename, file->renameto) == -1) + Con_Printf(CON_WARN "WARNING: could not rename %s to %s on close.\n", file->filename, file->renameto); + Mem_Free((void *) file->renameto); + } Mem_Free((void *) file->filename); } + if (file->mode) + Mem_Free((void *) file->mode); + if (file->ztk) { qz_inflateEnd (&file->ztk->zstream); @@ -3005,6 +3020,24 @@ void FS_RemoveOnClose(qfile_t* file) file->flags |= QFILE_FLAG_REMOVE; } +void FS_RenameOnClose(qfile_t* file, char *newname) +{ + char real_path [MAX_OSPATH]; + if(file->mode[0] == 'r') + { + Con_Printf("FS_RenameOnClose(\"%s\") file opened in read-only mode, won't rename it\n", file->filename); + return; + } + if (FS_CheckNastyPath(newname, false)) + { + Con_Printf("FS_RenameOnClose(\"%s\"): nasty filename rejected\n", newname); + return; + } + file->flags |= QFILE_FLAG_RENAME; + dpsnprintf (real_path, sizeof (real_path), "%s/%s", fs_gamedir, newname); + file->renameto = Mem_strdup(fs_mempool, real_path); +} + /* ==================== FS_Write diff --git a/fs.h b/fs.h index b81d84d2..dc4f219a 100644 --- a/fs.h +++ b/fs.h @@ -71,6 +71,7 @@ qfile_t* FS_OpenVirtualFile (const char* filepath, qbool quiet); qfile_t* FS_FileFromData (const unsigned char *data, const size_t size, qbool quiet); int FS_Close (qfile_t* file); void FS_RemoveOnClose(qfile_t* file); +void FS_RenameOnClose(qfile_t* file, char *newname); fs_offset_t FS_Write (qfile_t* file, const void* data, size_t datasize); fs_offset_t FS_Read (qfile_t* file, void* buffer, size_t buffersize); int FS_Print(qfile_t* file, const char *msg); -- 2.39.2