diff options
Diffstat (limited to 'libbb/remove_file.c')
-rw-r--r-- | libbb/remove_file.c | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/libbb/remove_file.c b/libbb/remove_file.c new file mode 100644 index 0000000..8b14f07 --- /dev/null +++ b/libbb/remove_file.c @@ -0,0 +1,102 @@ +/* vi: set sw=4 ts=4: */ +/* + * Mini remove_file implementation for busybox + * + * Copyright (C) 2001 Matt Kraai <kraai@alumni.carnegiemellon.edu> + * + * Licensed under GPLv2 or later, see file LICENSE in this tarball for details. + */ + +#include "libbb.h" + +/* Used from NOFORK applets. Must not allocate anything */ + +int FAST_FUNC remove_file(const char *path, int flags) +{ + struct stat path_stat; + + if (lstat(path, &path_stat) < 0) { + if (errno != ENOENT) { + bb_perror_msg("cannot stat '%s'", path); + return -1; + } + if (!(flags & FILEUTILS_FORCE)) { + bb_perror_msg("cannot remove '%s'", path); + return -1; + } + return 0; + } + + if (S_ISDIR(path_stat.st_mode)) { + DIR *dp; + struct dirent *d; + int status = 0; + + if (!(flags & FILEUTILS_RECUR)) { + bb_error_msg("%s: is a directory", path); + return -1; + } + + if ((!(flags & FILEUTILS_FORCE) && access(path, W_OK) < 0 && isatty(0)) + || (flags & FILEUTILS_INTERACTIVE) + ) { + fprintf(stderr, "%s: descend into directory '%s'? ", applet_name, + path); + if (!bb_ask_confirmation()) + return 0; + } + + dp = opendir(path); + if (dp == NULL) { + return -1; + } + + while ((d = readdir(dp)) != NULL) { + char *new_path; + + new_path = concat_subpath_file(path, d->d_name); + if (new_path == NULL) + continue; + if (remove_file(new_path, flags) < 0) + status = -1; + free(new_path); + } + + if (closedir(dp) < 0) { + bb_perror_msg("cannot close '%s'", path); + return -1; + } + + if (flags & FILEUTILS_INTERACTIVE) { + fprintf(stderr, "%s: remove directory '%s'? ", applet_name, path); + if (!bb_ask_confirmation()) + return status; + } + + if (rmdir(path) < 0) { + bb_perror_msg("cannot remove '%s'", path); + return -1; + } + + return status; + } + + /* !ISDIR */ + if ((!(flags & FILEUTILS_FORCE) + && access(path, W_OK) < 0 + && !S_ISLNK(path_stat.st_mode) + && isatty(0)) + || (flags & FILEUTILS_INTERACTIVE) + ) { + fprintf(stderr, "%s: remove '%s'? ", applet_name, path); + if (!bb_ask_confirmation()) + return 0; + } + + if (unlink(path) < 0) { + bb_perror_msg("cannot remove '%s'", path); + return -1; + } + + return 0; +} |