From 464df1d5e5ab1322e2dd0a7796939fff1aeefa9a Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 17:49:25 +0200 Subject: Adding upstream version 1.47.0. Signed-off-by: Daniel Baumann --- misc/chattr.c | 359 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 359 insertions(+) create mode 100644 misc/chattr.c (limited to 'misc/chattr.c') diff --git a/misc/chattr.c b/misc/chattr.c new file mode 100644 index 0000000..c7382a3 --- /dev/null +++ b/misc/chattr.c @@ -0,0 +1,359 @@ +/* + * chattr.c - Change file attributes on an ext2 file system + * + * Copyright (C) 1993, 1994 Remy Card + * Laboratoire MASI, Institut Blaise Pascal + * Universite Pierre et Marie Curie (Paris VI) + * + * This file can be redistributed under the terms of the GNU General + * Public License + */ + +/* + * History: + * 93/10/30 - Creation + * 93/11/13 - Replace stat() calls by lstat() to avoid loops + * 94/02/27 - Integrated in Ted's distribution + * 98/12/29 - Ignore symlinks when working recursively (G M Sipe) + * 98/12/29 - Display version info only when -V specified (G M Sipe) + */ + +#define _LARGEFILE64_SOURCE + +#include "config.h" +#include +#include +#include +#include +#include +#include +#include +#ifdef HAVE_ERRNO_H +#include +#endif +#include +#include +#include "ext2fs/ext2_fs.h" + +#ifdef __GNUC__ +#define EXT2FS_ATTR(x) __attribute__(x) +#else +#define EXT2FS_ATTR(x) +#endif + +#ifndef S_ISLNK /* So we can compile even with gcc-warn */ +# ifdef __S_IFLNK +# define S_ISLNK(mode) __S_ISTYPE((mode), __S_IFLNK) +# else +# define S_ISLNK(mode) 0 +# endif +#endif + +#include "et/com_err.h" +#include "e2p/e2p.h" +#include "support/nls-enable.h" + +#include "../version.h" + +static const char * program_name = "chattr"; + +static int add; +static int rem; +static int set; +static int set_version; + +static unsigned long version; + +static int set_project; +static unsigned long project; + +static int recursive; +static int verbose; +static int silent; + +static unsigned long af; +static unsigned long rf; +static unsigned long sf; + +#ifdef _LFS64_LARGEFILE +#define LSTAT lstat64 +#define STRUCT_STAT struct stat64 +#else +#define LSTAT lstat +#define STRUCT_STAT struct stat +#endif + +static void usage(void) +{ + fprintf(stderr, + _("Usage: %s [-RVf] [-+=aAcCdDeijPsStTuFx] [-p project] [-v version] files...\n"), + program_name); + exit(1); +} + +struct flags_char { + unsigned long flag; + char optchar; +}; + +static const struct flags_char flags_array[] = { + { EXT2_NOATIME_FL, 'A' }, + { EXT2_SYNC_FL, 'S' }, + { EXT2_DIRSYNC_FL, 'D' }, + { EXT2_APPEND_FL, 'a' }, + { EXT2_COMPR_FL, 'c' }, + { EXT2_NOCOMPR_FL, 'm' }, + { EXT2_NODUMP_FL, 'd' }, + { EXT4_EXTENTS_FL, 'e'}, + { EXT2_IMMUTABLE_FL, 'i' }, + { EXT3_JOURNAL_DATA_FL, 'j' }, + { EXT4_PROJINHERIT_FL, 'P' }, + { EXT2_SECRM_FL, 's' }, + { EXT2_UNRM_FL, 'u' }, + { EXT2_NOTAIL_FL, 't' }, + { EXT2_TOPDIR_FL, 'T' }, + { FS_NOCOW_FL, 'C' }, + { FS_DAX_FL, 'x' }, + { EXT4_CASEFOLD_FL, 'F' }, + { 0, 0 } +}; + +static unsigned long get_flag(char c) +{ + const struct flags_char *fp; + + for (fp = flags_array; fp->flag != 0; fp++) { + if (fp->optchar == c) + return fp->flag; + } + return 0; +} + + +static int decode_arg (int * i, int argc, char ** argv) +{ + char * p; + char * tmp; + unsigned long fl; + + switch (argv[*i][0]) + { + case '-': + for (p = &argv[*i][1]; *p; p++) { + if (*p == 'R') { + recursive = 1; + continue; + } + if (*p == 'V') { + verbose = 1; + continue; + } + if (*p == 'f') { + silent = 1; + continue; + } + if (*p == 'p') { + (*i)++; + if (*i >= argc) + usage (); + project = strtol (argv[*i], &tmp, 0); + if (*tmp) { + com_err (program_name, 0, + _("bad project - %s\n"), + argv[*i]); + usage (); + } + set_project = 1; + continue; + } + if (*p == 'v') { + (*i)++; + if (*i >= argc) + usage (); + version = strtol (argv[*i], &tmp, 0); + if (*tmp) { + com_err (program_name, 0, + _("bad version - %s\n"), + argv[*i]); + usage (); + } + set_version = 1; + continue; + } + if ((fl = get_flag(*p)) == 0) + usage(); + rf |= fl; + rem = 1; + } + break; + case '+': + add = 1; + for (p = &argv[*i][1]; *p; p++) { + if ((fl = get_flag(*p)) == 0) + usage(); + af |= fl; + } + break; + case '=': + set = 1; + for (p = &argv[*i][1]; *p; p++) { + if ((fl = get_flag(*p)) == 0) + usage(); + sf |= fl; + } + break; + default: + return EOF; + } + return 1; +} + +static int chattr_dir_proc(const char *, struct dirent *, void *); + +static int change_attributes(const char * name) +{ + unsigned long flags; + STRUCT_STAT st; + + if (LSTAT (name, &st) == -1) { + if (!silent) + com_err (program_name, errno, + _("while trying to stat %s"), name); + return -1; + } + + if (fgetflags(name, &flags) == -1) { + if (!silent) + com_err(program_name, errno, + _("while reading flags on %s"), name); + return -1; + } + if (set) { + if (verbose) { + printf (_("Flags of %s set as "), name); + print_flags (stdout, sf, 0); + printf ("\n"); + } + if (fsetflags (name, sf) == -1) + perror (name); + } else { + if (rem) + flags &= ~rf; + if (add) + flags |= af; + if (verbose) { + printf(_("Flags of %s set as "), name); + print_flags(stdout, flags, 0); + printf("\n"); + } + if (!S_ISDIR(st.st_mode)) + flags &= ~EXT2_DIRSYNC_FL; + if (fsetflags(name, flags) == -1) { + if (!silent) { + com_err(program_name, errno, + _("while setting flags on %s"), + name); + } + return -1; + } + } + if (set_version) { + if (verbose) + printf (_("Version of %s set as %lu\n"), name, version); + if (fsetversion (name, version) == -1) { + if (!silent) + com_err (program_name, errno, + _("while setting version on %s"), + name); + return -1; + } + } + if (set_project) { + if (verbose) + printf (_("Project of %s set as %lu\n"), name, project); + if (fsetproject (name, project) == -1) { + if (!silent) + com_err (program_name, errno, + _("while setting project on %s"), + name); + return -1; + } + + } + if (S_ISDIR(st.st_mode) && recursive) + return iterate_on_dir (name, chattr_dir_proc, NULL); + return 0; +} + +static int chattr_dir_proc (const char * dir_name, struct dirent * de, + void * private EXT2FS_ATTR((unused))) +{ + int ret = 0; + + if (strcmp (de->d_name, ".") && strcmp (de->d_name, "..")) { + char *path; + + path = malloc(strlen (dir_name) + 1 + strlen (de->d_name) + 1); + if (!path) { + fprintf(stderr, "%s", + _("Couldn't allocate path variable " + "in chattr_dir_proc")); + return -1; + } + sprintf(path, "%s/%s", dir_name, de->d_name); + ret = change_attributes(path); + free(path); + } + return ret; +} + +int main (int argc, char ** argv) +{ + int i, j; + int end_arg = 0; + int err, retval = 0; + +#ifdef ENABLE_NLS + setlocale(LC_MESSAGES, ""); + setlocale(LC_CTYPE, ""); + bindtextdomain(NLS_CAT_NAME, LOCALEDIR); + textdomain(NLS_CAT_NAME); + set_com_err_gettext(gettext); +#endif + if (argc && *argv) + program_name = *argv; + i = 1; + while (i < argc && !end_arg) { + /* '--' arg should end option processing */ + if (strcmp(argv[i], "--") == 0) { + i++; + end_arg = 1; + } else if (decode_arg (&i, argc, argv) == EOF) + end_arg = 1; + else + i++; + } + if (i >= argc) + usage (); + if (set && (add || rem)) { + fputs(_("= is incompatible with - and +\n"), stderr); + exit (1); + } + if ((rf & af) != 0) { + fputs("Can't both set and unset same flag.\n", stderr); + exit (1); + } + if (!(add || rem || set || set_version || set_project )) { + fputs(_("Must use '-v', =, - or +\n"), stderr); + exit (1); + } + if (verbose) + fprintf (stderr, "chattr %s (%s)\n", + E2FSPROGS_VERSION, E2FSPROGS_DATE); + for (j = i; j < argc; j++) { + err = change_attributes (argv[j]); + if (err) + retval = 1; + } + exit(retval); +} -- cgit v1.2.3