Welcome to little lamb

Code » limb » master » tree

[master] / src / liblimb / autoopt.h / autoopt_parse_buffer_dest.c 

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
/* This file is part of limb                           https://lila.oss/limb
 * Copyright (C) 2023 Olivier Brunel                          jjk@jjacky.com */
/* SPDX-License-Identifier: GPL-2.0-only */
#include <errno.h>
#include <limb/output.h>
#include "autoopt.h"

int
autoopt_parse_buffer_dest(const struct option *option, const char *arg, u8 *lvl)
{
    int fd = parse_buffer_dest(lvl, &arg, strlen(arg));
    if (fd < 0) {
        char buf[2] = { option->shortopt, 0 };
        if (*lvl == (u8) -1)
            warn("invalid output level via --", option->longopt,
                 (*buf) ? "/-" : "", buf, ": ", arg);
        else if (errno == EINVAL || errno == ERANGE)
            warn("invalid file descriptor via --", option->longopt,
                 (*buf) ? "/-" : "", buf, ": ", arg);
        else
            warnusys("open ", ESC, arg, ESC, " via --", option->longopt,
                 (*buf) ? "/-" : "", buf);

        return -1;
    }

    return fd;
}