X-Git-Url: http://git.annexia.org/?a=blobdiff_plain;f=daemon%2Ffile.c;h=476f44569a1d99ef93ac5a673eb3efb682f47c59;hb=734b2d2483f0b0e6c3f4e0427dcde19877355f0f;hp=98244724b6a66bb3a71edd5d84e843fec235b2df;hpb=74958b0ad44df6ed703cd3009983d04ade3a8e93;p=libguestfs.git diff --git a/daemon/file.c b/daemon/file.c index 9824472..476f445 100644 --- a/daemon/file.c +++ b/daemon/file.c @@ -270,40 +270,6 @@ do_lchown (int owner, int group, const char *path) } int -do_exists (const char *path) -{ - int r; - - CHROOT_IN; - r = access (path, F_OK); - CHROOT_OUT; - - return r == 0; -} - -int -do_is_file (const char *path) -{ - int r; - struct stat buf; - - CHROOT_IN; - r = lstat (path, &buf); - CHROOT_OUT; - - if (r == -1) { - if (errno != ENOENT && errno != ENOTDIR) { - reply_with_perror ("stat: %s", path); - return -1; - } - else - return 0; /* Not a file. */ - } - - return S_ISREG (buf.st_mode); -} - -int do_write_file (const char *path, const char *content, int size) { int fd; @@ -544,21 +510,50 @@ do_file (const char *path) return NULL; } path = buf; + + /* For non-dev, check this is a regular file, else just return the + * file type as a string (RHBZ#582484). + */ + struct stat statbuf; + if (lstat (path, &statbuf) == -1) { + reply_with_perror ("lstat: %s", display_path); + free (buf); + return NULL; + } + + if (! S_ISREG (statbuf.st_mode)) { + char *ret; + + free (buf); + + if (S_ISDIR (statbuf.st_mode)) + ret = strdup ("directory"); + else if (S_ISCHR (statbuf.st_mode)) + ret = strdup ("character device"); + else if (S_ISBLK (statbuf.st_mode)) + ret = strdup ("block device"); + else if (S_ISFIFO (statbuf.st_mode)) + ret = strdup ("FIFO"); + else if (S_ISLNK (statbuf.st_mode)) + ret = strdup ("symbolic link"); + else if (S_ISSOCK (statbuf.st_mode)) + ret = strdup ("socket"); + else + ret = strdup ("unknown, not regular file"); + + if (ret == NULL) + reply_with_perror ("strdup"); + return ret; + } } - /* file(1) manpage claims "file returns 0 on success, and non-zero on - * error", but this is evidently not true. It always returns 0, in - * every scenario I can think up. So check the target is readable - * first. + /* Which flags to use? For /dev paths, follow links because + * /dev/VG/LV is a symbolic link. */ - if (access (path, R_OK) == -1) { - reply_with_perror ("access: %s", display_path); - free (buf); - return NULL; - } + const char *flags = is_dev ? "-zbsL" : "-zb"; char *out, *err; - int r = command (&out, &err, "file", "-zbsL", path, NULL); + int r = command (&out, &err, "file", flags, path, NULL); free (buf); if (r == -1) {