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Filan prints symlink target

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This commit is contained in:
Gerhard Rieger 2022-06-05 10:55:45 +02:00
parent c62f93a168
commit e0c669028d
4 changed files with 85 additions and 6 deletions

33
filan.c
View file

@ -79,17 +79,20 @@ int filan_file(const char *filename, FILE *outfile) {
default:
if ((fd =
Open(filename, O_RDONLY|O_NOCTTY|O_NONBLOCK
#ifdef O_NOFOLLOW
|(filan_followsymlinks?0:O_NOFOLLOW)
#endif
#ifdef O_LARGEFILE
|O_LARGEFILE
#endif
, 0700))
< 0) {
Warn2("open(\"%s\", O_RDONLY|O_NOCTTY|O_NONBLOCK|O_LARGEFILE, 0700): %s",
Warn2("open(\"%s\", O_RDONLY|O_NOCTTY|O_NONBLOCK|O_NOFOLLOW|O_LARGEFILE, 0700): %s",
filename, strerror(errno));
}
}
result = filan_stat(&buf, fd, -1, outfile);
result = filan_stat(&buf, fd, -1, outfile, filename);
fputc('\n', outfile);
return result;
}
@ -119,7 +122,7 @@ int filan_fd(int fd, FILE *outfile) {
}
Debug2("fd %d is a %s", fd, getfiletypestring(buf.st_mode));
result = filan_stat(&buf, fd, fd, outfile);
result = filan_stat(&buf, fd, fd, outfile, NULL);
if (result >= 0) {
/* even more dynamic info */
@ -212,7 +215,12 @@ int filan_stat(
#else
struct stat *buf
#endif /* !HAVE_STAT64 */
, int statfd, int dynfd, FILE *outfile) {
, int statfd, int dynfd, FILE *outfile,
const char *filename /* Linux does not (yet) provide an
freadlink system call, so we need
the original name for readlink in
case it is a symlink */
) {
char stdevstr[8];
/* print header */
@ -380,7 +388,11 @@ int filan_stat(
break;
case (S_IFREG): /* 8, regular file */
break;
#ifdef S_IFLNK
case (S_IFLNK): /* 10, symbolic link */
/* we wait for freadlink() sytem call */
break;
#endif /* S_IFLNK */
break;
#ifdef S_IFSOCK
case (S_IFSOCK): /* 12, socket */
@ -393,6 +405,19 @@ int filan_stat(
break;
#endif /* S_IFSOCK */
}
} else {
switch (buf->st_mode&S_IFMT) {
#ifdef S_IFLNK
case (S_IFLNK): /* 10, symbolic link */
{
char linktarget[PATH_MAX+1];
memset(linktarget, 0, PATH_MAX+1);
Readlink(filename, linktarget, PATH_MAX);
fprintf(outfile, "LINKTARGET=%s", linktarget);
}
break;
#endif /* S_IFLNK */
}
}
/* ioctl() */
return 0;