Rename C source file to C++ source files

1 files changed, 0 insertions, 182 deletions

diff --git a/src/restore.c b/src/restore.c
deleted file mode 100644
index e73e42e..0000000
--- a/src/restore.c
+++ /dev/null
@@ -1,182 +0,0 @@
-/* Copyright 2021 Ján Sučan <jan@jansucan.com>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include "restore.h"
-
-#include "file.h"
-#include "print.h"
-
-#include <errno.h>
-#include <stdbool.h>
-#include <stdint.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-static bool
-is_input_file_valid(const resources_restore_t *const res, uint32_t sector_size)
-{
-    bool in_size_ok = false;
-    const size_t in_size = file_size(res->in_file, &in_size_ok);
-
-    if (!in_size_ok) {
-        print_error("cannot get size of input file: %s", strerror(errno));
-        return false;
-    } else if (in_size == 0) {
-        print_error("input file is empty");
-        return false;
-    } else if ((in_size % (sizeof(uint64_t) + sector_size)) != 0) {
-        /* The input file must hold equally sized sectors and the
-         * offset of each of them
-         */
-        print_error("input file has size that cannot contain valid diff data");
-        return false;
-    }
-
-    bool out_size_ok = false;
-    const size_t out_size = file_size(res->out_file, &out_size_ok);
-
-    if (!out_size_ok) {
-        print_error("cannot get size of output file: %s", strerror(errno));
-        return 1;
-    }
-
-    uint64_t prev_out_offset = 0;
-    bool is_first_reading = true;
-
-    /* Scan the input file and check  */
-    for (;;) {
-        uint64_t out_offset;
-        /* Read the next offset */
-        const size_t in_read =
-            fread(&out_offset, sizeof(out_offset), 1U, res->in_file);
-        out_offset = le64toh(out_offset);
-
-        if (feof(res->in_file)) {
-            break;
-        } else if ((in_read != 1U) || ferror(res->in_file)) {
-            print_error("cannot read from input file: %s", strerror(errno));
-            return false;
-        } else if (!is_first_reading && (out_offset <= prev_out_offset)) {
-            print_error("a sector offset points behind the previous offset");
-            return false;
-        } else if ((out_offset + sector_size) > out_size) {
-            print_error(
-                "a sector offset points past the end of the output file");
-            return false;
-        } else if (fseek(res->in_file, sector_size, SEEK_CUR) != 0) {
-            print_error("cannot seek in input file: %s", strerror(errno));
-            return false;
-        }
-
-        is_first_reading = false;
-        prev_out_offset = out_offset;
-    }
-
-    bool pos_ok = false;
-    const size_t pos = file_tell(res->in_file, &pos_ok);
-
-    if (!pos_ok) {
-        print_error("cannot get position in the input file");
-        return false;
-    } else if (pos != in_size) {
-        /* The input file must be read completely */
-        print_error("input file is not valid");
-        return false;
-    } else if (fseek(res->in_file, 0L, SEEK_SET) != 0) {
-        /* The file must be prepared for the restoring */
-        print_error("cannot seek in input file: %s", strerror(errno));
-        return false;
-    }
-
-    return true;
-}
-
-int
-restore(const options_restore_t *const opts,
-        const resources_restore_t *const res)
-{
-    /* Check validity of the input file */
-    if (!is_input_file_valid(res, opts->sector_size)) {
-        return 1;
-    }
-
-    bool in_size_ok = false;
-    const size_t in_size = file_size(res->in_file, &in_size_ok);
-
-    if (!in_size_ok) {
-        print_error("cannot get size of input file: %s", strerror(errno));
-        return 1;
-    }
-
-    /* Restore data from the differential image */
-    for (;;) {
-
-        /* Read data of the offset and the next sector */
-        const size_t in_sectors_read =
-            file_read_sectors(res->in_file, res->in_buffer, res->in_buffer_size,
-                              res->in_sector_size);
-
-        if (in_sectors_read == 0) {
-            break;
-        }
-
-        char *in_buffer = res->in_buffer;
-
-        for (size_t s = 0; s < in_sectors_read; ++s) {
-            const uint64_t out_offset = le64toh(*((uint64_t *)in_buffer));
-            in_buffer += sizeof(uint64_t);
-
-            if (fseek(res->out_file, out_offset, SEEK_SET) != 0) {
-                print_error("cannot seek in output file: %s", strerror(errno));
-                return 1;
-            }
-
-            const size_t out_written =
-                fwrite(in_buffer, opts->sector_size, 1U, res->out_file);
-            in_buffer += opts->sector_size;
-
-            if (out_written != 1U) {
-                print_error("cannot write to output file: %s", strerror(errno));
-                return 1;
-            }
-        }
-    }
-
-    /* The input file must be read completely */
-    bool pos_ok = false;
-    const size_t pos = file_tell(res->in_file, &pos_ok);
-
-    if (!pos_ok) {
-        print_error("cannot get position in the input file");
-        return 1;
-    } else if (pos != in_size) {
-        print_error("input file is not valid");
-        return 1;
-    }
-
-    return 0;
-}