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2b72262b4f
I hereby relicense all my work on Sortix under the ISC license as below. All Sortix contributions by other people are already under this license, are not substantial enough to be copyrightable, or have been removed. All imported code from other projects is compatible with this license. All GPL licensed code from other projects had previously been removed. Copyright 2011-2016 Jonas 'Sortie' Termansen and contributors. Permission to use, copy, modify, and distribute this software for any purpose with or without fee is hereby granted, provided that the above copyright notice and this permission notice appear in all copies. THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
112 lines
3.2 KiB
C
112 lines
3.2 KiB
C
/*
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* Copyright (c) 2015, 2016 Jonas 'Sortie' Termansen.
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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* conf.c
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* Utility functions to handle upgrade.conf(5).
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*/
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#include <ctype.h>
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#include <err.h>
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#include <errno.h>
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#include <stdbool.h>
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#include <stddef.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "conf.h"
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static bool conf_boolean(const char* name, const char* value, const char* path)
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{
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if ( !strcmp(value, "yes") )
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return true;
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if ( !strcmp(value, "no") )
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return false;
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printf("%s: %s: Expected yes or no instead of unsupported value\n",
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path, name);
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return false;
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}
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static void conf_assign(struct conf* conf,
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const char* name,
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const char* value,
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const char* path)
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{
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if ( !strcmp(name, "grub") )
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conf->grub = conf_boolean(name, value, path);
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else if ( !strcmp(name, "newsrc") )
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conf->newsrc = conf_boolean(name, value, path);
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else if ( !strcmp(name, "ports") )
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conf->ports = conf_boolean(name, value, path);
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else if ( !strcmp(name, "src") )
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conf->src = conf_boolean(name, value, path);
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else if ( !strcmp(name, "system") )
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conf->system = conf_boolean(name, value, path);
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else
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printf("%s: %s: Unsupported variable\n", path, name);
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}
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void load_upgrade_conf(struct conf* conf, const char* path)
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{
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memset(conf, 0, sizeof(*conf));
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conf->ports = true;
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conf->system = true;
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FILE* fp = fopen(path, "r");
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if ( !fp )
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{
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if ( errno == ENOENT )
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return;
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err(2, "%s", path);
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}
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char* line = NULL;
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size_t line_size = 0;
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ssize_t line_length;
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while ( 0 < (errno = 0, line_length = getline(&line, &line_size, fp)) )
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{
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if ( line[line_length - 1] == '\n' )
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line[--line_length] = '\0';
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line_length = 0;
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while ( line[line_length] && line[line_length] != '#' )
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line_length++;
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line[line_length] = '\0';
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while ( line_length && isblank((unsigned char) line[line_length - 1]) )
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line[--line_length] = '\0';
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char* name = line;
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while ( *name && isblank((unsigned char) *name) )
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name++;
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if ( !*name || *name == '=' )
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continue;
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size_t name_length = 1;
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while ( name[name_length] &&
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!isblank((unsigned char) name[name_length]) &&
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name[name_length] != '=' )
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name_length++;
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char* value = name + name_length;
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while ( *value && isblank((unsigned char) *value) )
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value++;
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if ( *value != '=' )
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continue;
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value++;
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while ( *value && isblank((unsigned char) *value) )
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value++;
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name[name_length] = '\0';
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conf_assign(conf, name, value, path);
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}
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if ( errno )
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err(2, "%s", path);
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free(line);
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fclose(fp);
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}
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