102 lines
2.0 KiB
C
102 lines
2.0 KiB
C
#include <errno.h>
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#include <ioall.h>
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#include <fcntl.h>
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#include <sys/time.h>
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#include <sys/stat.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <stdio.h>
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#include "filecopy.h"
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char namebuf[MAX_PATH_LENGTH];
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void notify_progress(int p1, int p2)
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{
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}
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int global_status_fd;
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void do_exit(int code)
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{
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int codebuf = code;
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write(global_status_fd, &codebuf, sizeof codebuf);
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exit(0);
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}
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void fix_times_and_perms(struct file_header *hdr, char *name)
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{
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struct timeval times[2] =
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{ {hdr->atime, hdr->atime_nsec / 1000}, {hdr->mtime,
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hdr->mtime_nsec / 1000}
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};
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if (chmod(name, hdr->mode & 07777))
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do_exit(errno);
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if (utimes(name, times))
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do_exit(errno);
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}
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void process_one_file_reg(struct file_header *hdr, char *name)
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{
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char *ret;
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int fdout =
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open(name, O_WRONLY | O_CREAT | O_EXCL | O_NOFOLLOW, 0700);
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if (fdout < 0)
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do_exit(errno);
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ret = copy_file(fdout, 0, hdr->filelen);
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if (ret)
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do_exit(errno);
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close(fdout);
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fix_times_and_perms(hdr, name);
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}
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void process_one_file_dir(struct file_header *hdr, char *name)
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{
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if (mkdir(name, 0700) && errno != EEXIST)
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do_exit(errno);
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fix_times_and_perms(hdr, name);
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}
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void process_one_file_link(struct file_header *hdr, char *name)
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{
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char content[MAX_PATH_LENGTH];
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if (hdr->filelen > MAX_PATH_LENGTH - 1)
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do_exit(ENAMETOOLONG);
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if (!read_all(0, content, hdr->filelen))
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do_exit(errno);
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content[hdr->filelen] = 0;
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if (symlink(content, name))
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do_exit(errno);
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}
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void process_one_file(struct file_header *hdr)
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{
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if (hdr->namelen > MAX_PATH_LENGTH - 1)
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do_exit(ENAMETOOLONG);
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if (!read_all(0, namebuf, hdr->namelen))
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do_exit(errno);
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namebuf[hdr->namelen] = 0;
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if (S_ISREG(hdr->mode))
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process_one_file_reg(hdr, namebuf);
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else if (S_ISLNK(hdr->mode))
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process_one_file_link(hdr, namebuf);
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else if (S_ISDIR(hdr->mode))
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process_one_file_dir(hdr, namebuf);
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else
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do_exit(EINVAL);
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}
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void do_unpack(int fd)
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{
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global_status_fd = fd;
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struct file_header hdr;
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while (read_all(0, &hdr, sizeof hdr))
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process_one_file(&hdr);
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if (errno)
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do_exit(errno);
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else
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do_exit(LEGAL_EOF);
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}
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