nfs4_setfacl had the possibility to use an optional index
to add/remove an ACL entry.
This was causing some confusion as numeric files could be interpreted
as indexes.
This change adds an extra command line option '-i' to specifically
handle the indexes.
The index can be used only with certain operations (add and remove).
The new syntax, when using indexes, would be:
~]# nfs4_setfacl -i 3 -a A::101:rxtncy file123
Signed-off-by: Pierguido Lambri <plambri@xxxxxxxxxx>
---
nfs4_setfacl/nfs4_setfacl.c | 60 +++++++++++++++++++++++--------------
1 file changed, 38 insertions(+), 22 deletions(-)
diff --git a/nfs4_setfacl/nfs4_setfacl.c b/nfs4_setfacl/nfs4_setfacl.c
index e581608..d10e073 100644
--- a/nfs4_setfacl/nfs4_setfacl.c
+++ b/nfs4_setfacl/nfs4_setfacl.c
@@ -143,7 +143,7 @@ int main(int argc, char **argv)
int opt, err = 1;
int numpaths = 0, curpath = 0;
char *tmp, **paths = NULL, *path = NULL, *spec_file = NULL;
- FILE *s_fp = NULL;
+ FILE *s_fp, *fd = NULL;
if (!strcmp(basename(argv[0]), "nfs4_editfacl")) {
action = EDIT_ACTION;
@@ -155,7 +155,7 @@ int main(int argc, char **argv)
return err;
}
- while ((opt = getopt_long(argc, argv, "-:a:A:s:S:x:X:m:ethvHRPL", long_options, NULL)) != -1) {
+ while ((opt = getopt_long(argc, argv, "-:a:A:i:s:S:x::X:m:ethvHRPL", long_options, NULL)) != -1) {
switch (opt) {
case 'a':
mod_string = optarg;
@@ -165,21 +165,14 @@ int main(int argc, char **argv)
add:
assert_wu_wei(action);
action = INSERT_ACTION;
-
- /* run along if no more args (defaults to ace_index 1 == prepend) */
- if (optind == argc)
- break;
- ace_index = strtoul_reals(argv[optind++], 10);
- if (ace_index == ULONG_MAX) {
- /* oops it wasn't an ace_index; reset */
- optind--;
- ace_index = -1;
- } else if (ace_index == 0) {
- fprintf(stderr, "Sorry, valid indices start at '1'.\n");
- goto out;
+ break;
+ case 'i':
+ ace_index = strtoul_reals(optarg, 10);
+ if (ace_index == 0) {
+ fprintf(stderr, "Sorry, valid indices start at '1'.\n");
+ goto out;
}
break;
-
case 's':
mod_string = optarg;
goto set;
@@ -191,9 +184,14 @@ int main(int argc, char **argv)
break;
case 'x':
- ace_index = strtoul_reals(optarg, 10);
- if(ace_index == ULONG_MAX)
- mod_string = optarg;
+ /* make sure we handle the argument even if
+ * it doesn't immediately follow the option
+ */
+ if (optarg == NULL && optind < argc && argv[optind][0] != '-')
+ {
+ optarg = argv[optind++];
+ }
+ mod_string = optarg;
goto remove;
case 'X':
spec_file = optarg;
@@ -255,6 +253,9 @@ int main(int argc, char **argv)
case 'A':
fprintf(stderr, "Sorry, -a requires an 'acl_spec', whilst -A requires a 'spec_file'.\n");
goto out;
+ case 'i':
+ fprintf(stderr, "Sorry, -i requires an index (numerical)\n");
+ goto out;
case 's':
fprintf(stderr, "Sorry, -s requires an 'acl_spec'.\n");
goto out;
@@ -297,7 +298,21 @@ int main(int argc, char **argv)
if (action == NO_ACTION) {
fprintf(stderr, "No action specified.\n");
goto out;
- } else if (numpaths < 1) {
+ } else if (action != INSERT_ACTION && action != REMOVE_ACTION && ace_index >= 0) {
+ fprintf(stderr, "Index can be used only with add or remove.\n");
+ goto out;
+ } else if (numpaths <= 0 && ace_index >= 0 && mod_string)
+ {
+ /* Make sure the argument is a file */
+ if (!(fd = fopen(mod_string, "r"))) {
+ fprintf(stderr, "No path(s) specified.\n");
+ goto out;
+ } else
+ fclose(fd);
+ paths = malloc(sizeof(char *) * (argc - optind + 1));
+ paths[numpaths++] = mod_string;
+ } else if (numpaths < 1)
+ {
fprintf(stderr, "No path(s) specified.\n");
goto out;
}
@@ -609,9 +624,10 @@ static void __usage(const char *name, int is_ef)
"%s %s -- manipulate NFSv4 file/directory access control lists\n"
"Usage: %s [OPTIONS] COMMAND file ...\n"
" .. where COMMAND is one of:\n"
- " -a acl_spec [index] add ACL entries in acl_spec at index (DEFAULT: 1)\n"
- " -A file [index] read ACL entries to add from file\n"
- " -x acl_spec | index remove ACL entries or entry-at-index from ACL\n"
+ " -a acl_spec add ACL entries in acl_spec at defaul index (DEFAULT: 1)\n"
+ " -A file read ACL entries to add from file\n"
+ " -i index use the entry-at-index from ACL (only for add and remove)\n"
+ " -x acl_speci remove ACL entries\n"
" -X file read ACL entries to remove from file\n"
" -s acl_spec set ACL to acl_spec (replaces existing ACL)\n"
" -S file read ACL entries to set from file\n"
--
2.37.3
