explain_acl_get_file(3)

✨ NAME ✨

okay so this is the manual page for explain_acl_get_file, section 3 (library functions, bestie, we're in libexplain land 💅). it explains acl_get_file(3) errors. like, it takes your cryptic little errno situation and turns it into actual words. iconic behaviour, honestly.

---

🎀 SYNOPSIS 🎀

#include <libexplain/acl_get_file.h>
const char *explain_acl_get_file(const char *pathname, acl_type_t type);
const char *explain_errno_acl_get_file(int errnum, const char *pathname,
acl_type_t type);
void explain_message_acl_get_file(char *message, int message_size, const
char *pathname, acl_type_t type);
void explain_message_errno_acl_get_file(char *message, int message_size,
int errnum, const char *pathname, acl_type_t type);

---

🌸 DESCRIPTION 🌸

so basically, these functions are your emotional support translators 💖 you use them to get explanations for errors that the acl_get_file(3) system call hands back at you. she's giving "what went wrong and why," fr fr.

💜 explain_acl_get_file

const char *explain_acl_get_file(const char *pathname, acl_type_t type);

the explain_acl_get_file function is how you get an explanation of an error returned by the acl_get_file(3) system call. the least the message will contain is the value of strerror(errno), but usually she does much better than that and points at the underlying cause in more detail. no cap, she ate. 🔥

the errno global variable is the one being used to grab the error value that gets decoded.

• pathname — the original pathname, exactly as it was passed to the acl_get_file(3) system call. don't be out here paraphrasing her, okay?
• type — the original type, exactly as passed to the acl_get_file(3) system call.

Returns: the message explaining the error. this message buffer is shared by all libexplain functions that don't supply a buffer in their argument list. it's gonna get overwritten by the next call to any libexplain function sharing this buffer — including other threads. 💀

Note: this function is not thread safe, because it shares a return buffer across all threads, and many other functions in this library do too. be careful out there, bestie.

Example: this function is intended to be used in a fashion similar to the following example:

acl_t result = acl_get_file(pathname, type);
if (result < 0)
{
    fprintf(stderr, "%s\n", explain_acl_get_file(pathname,
    type));
    exit(EXIT_FAILURE);
}

the above code example is available pre-packaged as the explain_acl_get_file_or_die(3) function. so you don't even have to write it yourself, slay. 🫶

🌈 explain_errno_acl_get_file

const char *explain_errno_acl_get_file(int errnum, const char *pathname,
acl_type_t type);

the explain_errno_acl_get_file function is used to obtain an explanation of an error returned by the acl_get_file(3) system call. the least the message will contain is the value of strerror(errno), but usually it will do much better, and indicate the underlying cause in more detail. yes ma'am. ✨

• errnum — the error value to be decoded, usually obtained from the errno global variable just before this function is called. this is necessary if you need to call any code between the system call to be explained and this function, because many libc functions will alter the value of errno. so grab it early, bestie, she does not wait. 😭
• pathname — the original pathname, exactly as passed to the acl_get_file(3) system call.
• type — the original type, exactly as passed to the acl_get_file(3) system call.

Returns: the message explaining the error. this message buffer is shared by all libexplain functions which do not supply a buffer in their argument list. this will be overwritten by the next call to any libexplain function which shares this buffer, including other threads.

Note: this function is not thread safe, because it shares a return buffer across all threads, and many other functions in this library.

Example: this function is intended to be used in a fashion similar to the following example:

acl_t result = acl_get_file(pathname, type);
if (result < 0)
{
    int err = errno;
    fprintf(stderr, "%s\n", explain_errno_acl_get_file(err,
    pathname, type));
    exit(EXIT_FAILURE);
}

the above code example is available pre-packaged as the explain_acl_get_file_or_die(3) function. 💖

🦋 explain_message_acl_get_file

void explain_message_acl_get_file(char *message, int message_size, const
char *pathname, acl_type_t type);

the explain_message_acl_get_file function is used to obtain an explanation of an error returned by the acl_get_file(3) system call. the least the message will contain is the value of strerror(errno), but usually it will do much better, and indicate the underlying cause in more detail. main character energy, genuinely. 👑

the errno global variable will be used to obtain the error value to be decoded.

• message — the location in which to store the returned message. if a suitable message return buffer is supplied, this function is thread safe. growth! 💅
• message_size — the size in bytes of the location in which to store the returned message.
• pathname — the original pathname, exactly as passed to the acl_get_file(3) system call.
• type — the original type, exactly as passed to the acl_get_file(3) system call.

Example: this function is intended to be used in a fashion similar to the following example:

acl_t result = acl_get_file(pathname, type);
if (result < 0)
{
    char message[3000];
    explain_message_acl_get_file(message, sizeof(message),
    pathname, type);
    fprintf(stderr, "%s\n", message);
    exit(EXIT_FAILURE);
}

the above code example is available pre-packaged as the explain_acl_get_file_or_die(3) function. 🌸

🧚 explain_message_errno_acl_get_file

void explain_message_errno_acl_get_file(char *message, int message_size,
int errnum, const char *pathname, acl_type_t type);

the explain_message_errno_acl_get_file function is used to obtain an explanation of an error returned by the acl_get_file(3) system call. the least the message will contain is the value of strerror(errno), but usually it will do much better, and indicate the underlying cause in more detail. periodt. ✨

• message — the location in which to store the returned message. if a suitable message return buffer is supplied, this function is thread safe.
• message_size — the size in bytes of the location in which to store the returned message.
• errnum — the error value to be decoded, usually obtained from the errno global variable just before this function is called. this is necessary if you need to call any code between the system call to be explained and this function, because many libc functions will alter the value of errno. 😭
• pathname — the original pathname, exactly as passed to the acl_get_file(3) system call.
• type — the original type, exactly as passed to the acl_get_file(3) system call.

Example: this function is intended to be used in a fashion similar to the following example:

acl_t result = acl_get_file(pathname, type);
if (result < 0)
{
    int err = errno;
    char message[3000];
    explain_message_errno_acl_get_file(message, sizeof(message),
    err, pathname, type);
    fprintf(stderr, "%s\n", message);
    exit(EXIT_FAILURE);
}

the above code example is available pre-packaged as the explain_acl_get_file_or_die(3) function. 🫶

---

🔥 SEE ALSO 🔥

• acl_get_file(3) — execute acl_get_file(3)
• explain_acl_get_file_or_die(3) — execute acl_get_file(3) and report errors

iykyk, go read those next bestie 💜

---

👑 COPYRIGHT 👑

libexplain version 1.4 Copyright (C) 2013 Peter Miller

---

and that's the whole page, bestie 🌈 ty for reading to the end, you're literally the moment. this was explain_acl_get_file(3), from the Library Functions Manual, brought to you by libexplain version 1.4, with copyright held by Peter Miller, 2013 — mwah, love that for us 💖🎀🦋