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macOS xattr-acls extra stuff

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```bash rm -rf /tmp/test* echo test >/tmp/test chmod +a "everyone deny write,writeattr,writeextattr,writesecurity,chown" /tmp/test ./get_acls test ACL for test: !#acl 1 group:ABCDEFAB-CDEF-ABCD-EFAB-CDEF0000000C:everyone:12:deny:write,writeattr,writeextattr,writesecurity,chown

ACL in hex: \x21\x23\x61\x63\x6c\x20\x31\x0a\x67\x72\x6f\x75\x70\x3a\x41\x42\x43\x44\x45\x46\x41\x42\x2d\x43\x44\x45\x46\x2d\x41\x42\x43\x44\x2d\x45\x46\x41\x42\x2d\x43\x44\x45\x46\x30\x30\x30\x30\x30\x30\x30\x43\x3a\x65\x76\x65\x72\x79\x6f\x6e\x65\x3a\x31\x32\x3a\x64\x65\x6e\x79\x3a\x77\x72\x69\x74\x65\x2c\x77\x72\x69\x74\x65\x61\x74\x74\x72\x2c\x77\x72\x69\x74\x65\x65\x78\x74\x61\x74\x74\x72\x2c\x77\x72\x69\x74\x65\x73\x65\x63\x75\x72\x69\x74\x79\x2c\x63\x68\x6f\x77\x6e\x0a

Détails non fournis pour la traduction. Veuillez fournir le contenu textuel à traduire.
```c
// gcc -o get_acls get_acls
#include <stdio.h>
#include <stdlib.h>
#include <sys/acl.h>

int main(int argc, char *argv[]) {
if (argc != 2) {
fprintf(stderr, "Usage: %s <filepath>\n", argv[0]);
return 1;
}

const char *filepath = argv[1];
acl_t acl = acl_get_file(filepath, ACL_TYPE_EXTENDED);
if (acl == NULL) {
perror("acl_get_file");
return 1;
}

char *acl_text = acl_to_text(acl, NULL);
if (acl_text == NULL) {
perror("acl_to_text");
acl_free(acl);
return 1;
}

printf("ACL for %s:\n%s\n", filepath, acl_text);

// Convert acl_text to hexadecimal and print it
printf("ACL in hex: ");
for (char *c = acl_text; *c != '\0'; c++) {
printf("\\x%02x", (unsigned char)*c);
}
printf("\n");

acl_free(acl);
acl_free(acl_text);
return 0;
}

Since you haven't provided any English text to translate, I'm unable to proceed with a translation. Please provide the specific content you want translated into French, and I'll be happy to assist you.

# Lets add the xattr com.apple.xxx.xxxx with the acls
mkdir start
mkdir start/protected
./set_xattr start/protected
echo something > start/protected/something

Détails non fournis pour la traduction. Veuillez fournir le contenu spécifique à traduire.

// gcc -o set_xattr set_xattr.c
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/xattr.h>
#include <sys/acl.h>


void print_xattrs(const char *filepath) {
ssize_t buflen = listxattr(filepath, NULL, 0, XATTR_NOFOLLOW);
if (buflen < 0) {
perror("listxattr");
return;
}

char *buf = malloc(buflen);
if (buf == NULL) {
perror("malloc");
return;
}

buflen = listxattr(filepath, buf, buflen, XATTR_NOFOLLOW);
if (buflen < 0) {
perror("listxattr");
free(buf);
return;
}

printf("All current extended attributes for %s:\n", filepath);
for (char *name = buf; name < buf + buflen; name += strlen(name) + 1) {
printf("%s: ", name);
ssize_t valuelen = getxattr(filepath, name, NULL, 0, 0, XATTR_NOFOLLOW);
if (valuelen < 0) {
perror("getxattr");
continue;
}

char *value = malloc(valuelen + 1);
if (value == NULL) {
perror("malloc");
continue;
}

valuelen = getxattr(filepath, name, value, valuelen, 0, XATTR_NOFOLLOW);
if (valuelen < 0) {
perror("getxattr");
free(value);
continue;
}

value[valuelen] = '\0';  // Null-terminate the value
printf("%s\n", value);
free(value);
}

free(buf);
}


int main(int argc, char *argv[]) {
if (argc != 2) {
fprintf(stderr, "Usage: %s <filepath>\n", argv[0]);
return 1;
}

const char *hex = "\x21\x23\x61\x63\x6c\x20\x31\x0a\x67\x72\x6f\x75\x70\x3a\x41\x42\x43\x44\x45\x46\x41\x42\x2d\x43\x44\x45\x46\x2d\x41\x42\x43\x44\x2d\x45\x46\x41\x42\x2d\x43\x44\x45\x46\x30\x30\x30\x30\x30\x30\x30\x43\x3a\x65\x76\x65\x72\x79\x6f\x6e\x65\x3a\x31\x32\x3a\x64\x65\x6e\x79\x3a\x77\x72\x69\x74\x65\x2c\x77\x72\x69\x74\x65\x61\x74\x74\x72\x2c\x77\x72\x69\x74\x65\x65\x78\x74\x61\x74\x74\x72\x2c\x77\x72\x69\x74\x65\x73\x65\x63\x75\x72\x69\x74\x79\x2c\x63\x68\x6f\x77\x6e\x0a";
const char *filepath = argv[1];

int result = setxattr(filepath, "com.apple.xxx.xxxx", hex, strlen(hex), 0, 0);
if (result == 0) {
printf("Extended attribute set successfully.\n\n");
} else {
perror("setxattr");
return 1;
}

print_xattrs(filepath);

return 0;
}

```bash # Create appledoublefile with the xattr entitlement ditto -c -k start protected.zip rm -rf start # extract the files unzip protected.zip # Replace the name of the xattr here (if you put it before ditto would have destroyed it) python3 -c "with open('._protected', 'rb+') as f: content = f.read().replace(b'com.apple.xxx.xxxx', b'com.apple.acl.text'); f.seek(0); f.write(content); f.truncate()" # zip everything back together rm -rf protected.zip zip -r protected.zip protected ._protected rm -rf protected rm ._* ``` There is no English text provided to translate into French. Please provide the relevant English text that you would like to have translated. ```bash # Check if it worked ditto -x -k --rsrc protected.zip . xattr -l protected ```

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