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/* apk.c - Alpine Package Keeper (APK)
*
* Copyright (C) 2005-2008 Natanael Copa <n@tanael.org>
* Copyright (C) 2008 Timo Teräs <timo.teras@iki.fi>
* All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
* by the Free Software Foundation. See http://www.gnu.org/ for details.
*/
#include <stdio.h>
#include <fcntl.h>
#include <ctype.h>
#include <stdarg.h>
#include <stdlib.h>
#include <string.h>
#include <getopt.h>
#include <sys/stat.h>
#include "apk_defines.h"
#include "apk_applet.h"
const char *apk_root;
const char *apk_repository = NULL;
int apk_verbosity = 1, apk_progress = 0;
int apk_cwd_fd;
void apk_log(const char *prefix, const char *format, ...)
{
va_list va;
if (prefix != NULL)
fprintf(stderr, "%s", prefix);
va_start(va, format);
vfprintf(stderr, format, va);
va_end(va);
fprintf(stderr, "\n");
}
int usage(void)
{
struct apk_applet **a, *applet;
printf("apk-tools " APK_VERSION "\n"
"\n"
"Usage:\n");
for (a = &__start_apkapplets; a < &__stop_apkapplets; a++) {
applet = *a;
printf(" apk %s %s\n",
applet->name, applet->usage);
}
printf("\n");
return 1;
}
static struct apk_applet *find_applet(const char *name)
{
struct apk_applet **a;
for (a = &__start_apkapplets; a < &__stop_apkapplets; a++) {
if (strcmp(name, (*a)->name) == 0)
return *a;
}
return NULL;
}
static struct apk_applet *deduce_applet(int argc, char **argv)
{
struct apk_applet *a;
const char *prog;
int i;
prog = strrchr(argv[0], '/');
if (prog == NULL)
prog = argv[0];
else
prog++;
if (strncmp(prog, "apk_", 4) == 0)
return find_applet(prog + 4);
for (i = 1; i < argc; i++) {
if (argv[i][0] == '-')
continue;
a = find_applet(argv[i]);
if (a != NULL)
return a;
}
return NULL;
}
#define NUM_GENERIC_OPTS 5
static struct option generic_options[32] = {
{ "root", required_argument, NULL, 'p' },
{ "repository", required_argument, NULL, 'X' },
{ "quiet", no_argument, NULL, 'q' },
{ "verbose", no_argument, NULL, 'v' },
{ "progress", no_argument, NULL, 0x100 },
};
int main(int argc, char **argv)
{
struct apk_applet *applet;
char short_options[256], *sopt;
struct option *opt;
int r, optindex;
void *ctx = NULL;
umask(0);
apk_cwd_fd = open(".", O_RDONLY);
apk_root = getenv("ROOT");
applet = deduce_applet(argc, argv);
if (applet == NULL)
return usage();
if (applet->num_options && applet->options) {
memcpy(&generic_options[NUM_GENERIC_OPTS],
applet->options,
applet->num_options * sizeof(struct option));
}
for (opt = &generic_options[0], sopt = short_options;
opt->name != NULL; opt++) {
if (opt->flag == NULL &&
opt->val <= 0xff && isalnum(opt->val)) {
*(sopt++) = opt->val;
if (opt->has_arg != no_argument)
*(sopt++) = ':';
}
}
if (applet->context_size != 0)
ctx = calloc(1, applet->context_size);
optindex = 0;
while ((r = getopt_long(argc, argv, short_options,
generic_options, &optindex)) != -1) {
switch (r) {
case 'p':
apk_root = optarg;
break;
case 'X':
apk_repository = optarg;
break;
case 'q':
apk_verbosity--;
break;
case 'v':
apk_verbosity++;
break;
case 0x100:
apk_progress = 1;
break;
default:
if (applet->parse == NULL)
return usage();
if (applet->parse(ctx, r, optindex - NUM_GENERIC_OPTS,
optarg) != 0)
return usage();
break;
}
}
if (apk_root == NULL)
apk_root = "/";
argc -= optind;
argv += optind;
if (argc >= 1 && strcmp(argv[0], applet->name) == 0) {
argc--;
argv++;
}
return applet->main(ctx, argc, argv);
}
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