Gentle ping.
On Sun, Jun 18, 2023 at 4:53 PM LoveSy <[email protected]> wrote: > > function old new delta > getfattr_main - 380 +380 > print_attr - 204 +204 > list_attr - 152 +152 > .rodata 95358 95401 +43 > applet_names 2766 2775 +9 > e843419@0048_000003ed_14 - 8 +8 > e843419@0047_000003d1_550 - 8 +8 > applet_main 3216 3224 +8 > packed_usage 34560 34567 +7 > applet_install_loc 201 202 +1 > ------------------------------------------------------------------------------ > (add/remove: 6/0 grow/shrink: 5/0 up/down: 820/0) Total: 820 bytes > text data bss dec hex filename > 1127717 16889 1736 1146342 117de6 busybox_old > 1141124 16937 1736 1159797 11b275 busybox_unstripped > > Signed-off-by: LoveSy <[email protected]> > --- > miscutils/getfattr.c | 122 +++++++++++++++++++++++++++++++++++++++++++ > 1 file changed, 122 insertions(+) > create mode 100644 miscutils/getfattr.c > > diff --git a/miscutils/getfattr.c b/miscutils/getfattr.c > new file mode 100644 > index 000000000..4d4eacb5f > --- /dev/null > +++ b/miscutils/getfattr.c > @@ -0,0 +1,122 @@ > +/* > + * getfattr - get extended attributes of filesystem objects. > + * > + * Copyright (C) 2023 by LoveSy <[email protected]> > + * > + * Licensed under GPLv2, see file LICENSE in this source tree. > + */ > +//config:config GETFATTR > +//config: bool "getfattr (12.3 kb)" > +//config: default y > +//config: help > +//config: Get extended attributes on files > + > +//applet:IF_GETFATTR(APPLET_NOEXEC(getfattr, getfattr, BB_DIR_USR_BIN, > BB_SUID_DROP, getfattr)) > + > +//kbuild:lib-$(CONFIG_GETFATTR) += getfattr.o > + > +#include <stdio.h> > +#include <sys/xattr.h> > +#include "libbb.h" > + > +//usage:#define getfattr_trivial_usage > +//usage: "[-h] -n|-d ATTR FILE..." > +//usage:#define getfattr_full_usage "\n\n" > +//usage: "Get extended attributes" > +//usage: "\n" > +//usage: "\n -h Do not follow symlinks" > +//usage: "\n -d Dump all attributes" > +//usage: "\n -n ATTR Get attribute ATTR" > +int getfattr_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; > + > +int print_attr(const char *file, const char *name, int follow, char **buf, > size_t *buflen) > +{ > + ssize_t vallen, gotlen; > + vallen = (follow ? getxattr: lgetxattr)(file, name, NULL, 0); > + if (vallen == -1) { > + return -1; > + } > + vallen += 1; > + if (*buflen < vallen) { > + *buf = (char *)xrealloc(*buf, vallen); > + *buflen = vallen; > + } > + vallen = (follow ? getxattr : lgetxattr)(file, name, *buf, vallen); > + if (vallen == -1) { > + return -1; > + } > + (*buf)[vallen] = '\0'; > + printf("%s=\"%s\"\n", name, *buf); > + return 0; > +} > + > +ssize_t list_attr(const char *file, int follow, char **list, size_t *listlen) > +{ > + ssize_t len; > + len = (follow ? listxattr : llistxattr)(file, NULL, 0); > + if (len == -1) { > + return -1; > + } > + if (*listlen < len) { > + *list = (char *)xrealloc(*list, len); > + *listlen = len; > + } > + len = (follow ? listxattr : llistxattr)(file, *list, len); > + if (len == -1) { > + return -1; > + } > + return len; > +} > + > +int getfattr_main(int argc UNUSED_PARAM, char **argv) > +{ > + const char *name = NULL; > + int status; > + int opt; > + char *buf = NULL; > + size_t buflen = 0; > + char *list = NULL; > + size_t listlen = 0; > + enum { > + OPT_h = (1 << 0), > + OPT_d = (1 << 1), > + }; > + > + opt = getopt32(argv, "^" > + "hdn:" > + /* Min one arg, either -x or -n is a must, -d does not allow > -n */ > + "\0" "-1:dn:n--d:d--n" > + , &name > + ); > + argv += optind; > + status = EXIT_SUCCESS; > + > + do { > + int r = 0; > + printf("# file: %s\n", *argv); > + if (opt & OPT_d) { > + ssize_t len = list_attr(*argv, !(opt & OPT_h), &list, > &listlen); > + ssize_t keylen; > + char *key = list; > + while (len > 0 && !r) { > + r = print_attr(*argv, key, !(opt & OPT_h), > &buf, &buflen); > + keylen = strlen(key) + 1; > + key += keylen; > + len -= keylen; > + } > + } > + else { > + r = print_attr(*argv, name, !(opt & OPT_h), &buf, > &buflen); > + } > + printf("\n"); > + > + if (r) { > + bb_simple_perror_msg(*argv); > + status = EXIT_FAILURE; > + } > + } while (*++argv); > + > + free(buf); > + > + return status; > +} > -- > 2.34.1 > _______________________________________________ busybox mailing list [email protected] http://lists.busybox.net/mailman/listinfo/busybox
