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75 lines
2.1 KiB
75 lines
2.1 KiB
/*
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* MIT License
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*
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* Copyright (c) 2020 Alessandro Mauri
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdarg.h>
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#include <string.h>
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#include <errno.h>
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#include <unistd.h>
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#include "util.h"
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/* Exit printing an error message and error string based on errno */
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void die(const char *fmt, ...)
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{
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va_list ap;
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va_start(ap, fmt);
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fputs(ANSI_COLOR_RED, stderr);
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vfprintf(stderr, fmt, ap);
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if (fmt[0] && fmt[strlen(fmt) - 1] == ':') {
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fputc(' ', stderr);
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perror(NULL);
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} else {
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fputc('\n', stderr);
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}
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fputs(ANSI_COLOR_RESET, stderr);
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va_end(ap);
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exit(errno ? errno : 1);
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}
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/* Prints the command usage flags and brief description */
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void usage (void)
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{
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puts("Usage: automount [-h]\n"
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"-h print this message\n");
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}
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/* If the supplied path is a link, it returns the real absolute path, else it
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* returns the supplied path
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*/
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const char * get_path (const char *sym)
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{
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static char buf[256];
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memset(buf, 0, 256);
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if (readlink(sym, buf, 256) < 0 || *buf == '0')
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return sym;
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if (buf[255])
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return NULL;
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return buf;
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}
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