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parameter.c
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parameter.c
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/*BINFMTC:
* parameter handling for cpbuilder.
* Copyright (C) 2007-2009 Junichi Uekawa
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <sys/stat.h>
#include <string.h>
#include <unistd.h>
#include <getopt.h>
#include "parameter.h"
#include <assert.h>
/*
The pbuilder command-line to pass
0: pbuilder
1: build/create/login etc.
offset: the next command
The last-command will be
PBUILDER_ADD_PARAM(NULL);
*/
char* pbuildercommandline[MAXPBUILDERCOMMANDLINE];
int offset=2;
/*
get size of Null Terminated array of strings
*/
int size_of_ntarray(char ** buf)
{
int i = 0;
while(buf[i]) {
++i;
assert(i < MAX_CUSTOM_FILES);
}
return i;
}
/**
* @returns strdup of string with optionally removing the starting and
* trailing "'". bash 'set' command will quote.
*
... for ', ''"'"
*/
char* strdup_strip_quote(const char* p) {
if (*p == 0) {
return strdup("");
}
size_t len = strlen(p);
if (*p == '\'' && p[len-1] == '\'') {
char* ret = strdup(p+1);
assert(strlen(ret) == len - 1);
ret[len-2] = 0;
return ret;
}
return strdup(p);
}
/**
* load configuration.
*
* Returns bash return codes or -1 on popen error.
*
* Most interesting codes:
* -1 = popen failed
* 0 = ok
* 1 = file not found
* 2 = syntax error
*/
int load_config_file(const char* config, pbuilderconfig* pc)
{
char *s;
FILE* f;
char* buf=NULL;
size_t bufsiz=0;
char* delim;
int result;
asprintf(&s, "env bash -c 'set -e ; . %s; set ' 2>&1", config);
f=popen(s, "r");
if( NULL == f )
return -1;
while ( (0 == feof(f)) && (getline(&buf,&bufsiz,f)>0) )
{
if (strrchr(buf,'\n'))
{
*(strrchr(buf,'\n'))=0;
}
if ((delim=strchr(buf,'=')))
{
/* assuming config entry */
*(delim++)=0;
if (!strcmp(buf, "MIRRORSITE"))
{
pc->mirror=strdup_strip_quote(delim);
}
else if (!strcmp(buf, "BUILDRESULT"))
{
pc->buildresult=strdup_strip_quote(delim);
}
else if (!strcmp(buf, "DISTRIBUTION"))
{
pc->distribution=strdup_strip_quote(delim);
}
else if (!strcmp(buf, "KERNEL_IMAGE"))
{
pc->kernel_image=strdup_strip_quote(delim);
}
else if (!strcmp(buf, "INITRD"))
{
pc->initrd=strdup_strip_quote(delim);
}
else if (!strcmp(buf, "MEMORY_MEGS"))
{
pc->memory_megs=atoi(delim);
}
else if (!strcmp(buf, "ARCHITECTURE"))
{
pc->arch=strdup_strip_quote(delim);
}
else if (!strcmp(buf, "ARCH"))
{
pc->arch=strdup_strip_quote(delim);
}
else if (!strcmp(buf, "BASEPATH"))
{
pc->basepath=strdup_strip_quote(delim);
}
else if (!strcmp(buf, "BUILDPLACE"))
{
pc->buildplace=strdup_strip_quote(delim);
}
else if (!strcmp(buf, "COMPONENTS"))
{
pc->components=strdup_strip_quote(delim);
}
else if (!strcmp(buf, "OTHERMIRROR"))
{
pc->othermirror=strdup_strip_quote(delim);
}
else if (!strcmp(buf, "SMP"))
{
pc->smp=strdup_strip_quote(delim);
}
else if (!strcmp(buf, "DEBBUILDOPTS"))
{
pc->debbuildopts=strdup_strip_quote(delim);
}
else if (!strcmp(buf, "BINARY_ARCH"))
{
pc->binary_arch=1;
}
else if (!strcmp(buf, "NO_COWDANCER_UPDATE"))
{
pc->no_cowdancer_update=1;
}
else if (!strcmp(buf, "DEBIAN_ETCH_WORKAROUND"))
{
pc->debian_etch_workaround=1;
}
else if (!strcmp(buf, "ARCH_DISKDEVICE"))
{
pc->arch_diskdevice=strdup_strip_quote(delim);
}
else if (!strcmp(buf, "HTTP_PROXY"))
{
pc->http_proxy=strdup_strip_quote(delim);
}
}
}
result = WEXITSTATUS( pclose(f) );
if(buf) {
// Don't warn of missing config files
if( result > 1 )
printf( "(exit %i) -> %s\n", result, buf );
free(buf);
}
if(s) free(s);
return result;
}
int cpbuilder_dumpconfig(pbuilderconfig* pc)
{
/* dump configuration */
int i;
printf("dump config\n");
#define DUMPINT(S) printf(" "#S": %i\n", pc->S);
#define DUMPSTR(S) printf(" "#S": %s\n", pc->S);
#define DUMPSTRARRAY(S) i=0; \
while (pc->S[i]) \
{ \
printf(" "#S"[%i]: %s\n", i, pc->S[i]); \
i++; \
}
DUMPINT(mountproc);
DUMPINT(mountdev);
DUMPINT(mountdevpts);
DUMPINT(save_after_login);
DUMPINT(debug);
DUMPSTR(buildplace);
DUMPSTR(buildresult);
DUMPSTR(basepath);
DUMPSTR(mirror);
DUMPSTR(distribution);
DUMPSTR(components);
DUMPSTR(othermirror);
DUMPSTR(smp);
DUMPSTR(debbuildopts);
DUMPINT(binary_arch);
DUMPSTR(http_proxy);
DUMPSTRARRAY(inputfile);
DUMPSTRARRAY(outputfile);
DUMPINT(no_cowdancer_update);
DUMPSTR(kernel_image);
DUMPSTR(initrd);
DUMPINT(memory_megs);
DUMPSTR(arch);
return 0;
}
int parse_parameter(int ac, char** av,
const char* keyword)
{
int c; /* option */
int index_point;
int config_ok = -1, load_ok;
char * cmdstr=NULL;
static pbuilderconfig pc;
static struct option long_options[]=
{
{"basepath", required_argument, 0, 'b'},
{"buildplace", required_argument, 0, 'B'},
{"mountproc", no_argument, &(pc.mountproc), 1},
{"mountdev", no_argument, &(pc.mountdev), 1},
{"mountdevpts", no_argument, &(pc.mountdevpts), 1},
{"nomountproc", no_argument, &(pc.mountproc), 0},
{"nomountdev", no_argument, &(pc.mountdev), 0},
{"nomountdevpts", no_argument, &(pc.mountdevpts), 0},
{"save-after-login", no_argument, &(pc.save_after_login), 1},
{"save-after-exec", no_argument, &(pc.save_after_login), 1},
{"build", no_argument, (int*)&(pc.operation), pbuilder_build},
{"create", no_argument, (int*)&(pc.operation), pbuilder_create},
{"update", no_argument, (int*)&(pc.operation), pbuilder_update},
{"login", no_argument, (int*)&(pc.operation), pbuilder_login},
{"execute", no_argument, (int*)&(pc.operation), pbuilder_execute},
{"help", no_argument, (int*)&(pc.operation), pbuilder_help},
{"dumpconfig", no_argument, (int*)&(pc.operation), pbuilder_dumpconfig},
{"version", no_argument, 0, 'v'},
{"debug", no_argument, 0, 0},
{"configfile", required_argument, 0, 'c'},
{"mirror", required_argument, 0, 0},
{"buildresult", required_argument, 0, 0},
{"distribution", required_argument, 0, 0},
{"components", required_argument, 0, 0},
{"othermirror", required_argument, 0, 0},
{"smp", required_argument, 0, 0},
{"debbuildopts", required_argument, 0, 0},
{"binary-arch", no_argument, 0, 0},
{"inputfile", required_argument, 0, 0},
{"outputfile", required_argument, 0, 0},
{"architecture", required_argument, 0, 0},
{"http-proxy", required_argument, 0, 0},
/* cowbuilder specific options */
{"no-cowdancer-update", no_argument, 0, 0},
{"debian-etch-workaround", no_argument, 0, 0},
/* qemubuilder specific options */
{"arch-diskdevice", no_argument, 0, 0},
/* verbatim options with argument, synced as of pbuilder 0.153 */
{"aptcache", required_argument, 0, 'M'},
{"extrapackages", required_argument, 0, 'M'},
{"hookdir", required_argument, 0, 'M'},
{"debemail", required_argument, 0, 'M'},
{"logfile", required_argument, 0, 'M'},
{"aptconfdir", required_argument, 0, 'M'},
{"keyring", required_argument, 0, 'M'},
{"timeout", required_argument, 0, 'M'},
{"bindmounts", required_argument, 0, 'M'},
{"debootstrapopts", required_argument, 0, 'M'},
{"debootstrap", required_argument, 0, 'M'},
/* verbatim options without argument, synced as of pbuilder 0.153 */
{"allow-untrusted", no_argument, 0, 'm'},
{"removepackages", no_argument, 0, 'm'},
{"override-config", no_argument, 0, 'm'},
{"pkgname-logfile", no_argument, 0, 'm'},
{"preserve-buildplace", no_argument, 0, 'm'},
{"autocleanaptcache", no_argument, 0, 'm'},
{"twice", no_argument, 0, 'm'},
{0,0,0,0}
};
/* define pc to be clear. */
memset (&pc, 0, sizeof(pbuilderconfig));
/* default command-line component */
pbuildercommandline[0]="pbuilder";
/**
* Try to load all standard config files.
* Skip non existing, but exit on broken ones.
* config_ok is 0, if any load was successfull
**/
load_ok = load_config_file("/usr/share/pbuilder/pbuilderrc", &pc);
if( load_ok > 1 ) exit( 2 );
if( config_ok != 0 ) config_ok = load_ok;
load_ok = load_config_file("/etc/pbuilderrc", &pc);
if( load_ok > 1 ) exit( 3 );
if( config_ok != 0 ) config_ok = load_ok;
load_ok = load_config_file("~/.pbuilderrc", &pc);
if( load_ok > 1 ) exit( 4 );
if( config_ok != 0 ) config_ok = load_ok;
#define PASS_TO_PBUILDER_WITH_PARAM PBUILDER_ADD_PARAM(cmdstr); \
PBUILDER_ADD_PARAM(strdup(optarg));
/* load config files here. */
while((c = getopt_long (ac, av, "b:d:Mmhv", long_options, &index_point)) != -1)
{
switch (c)
{
case 'b': /* basepath */
if (pc.operation == pbuilder_create)
{
if (mkdir(optarg, 0777)<0)
{
perror("mkdir");
return 1;
}
}
else if (!pc.operation)
{
fprintf(stderr, "need to specify operation before --basepath option\n");
return 1;
}
if (!(pc.basepath = canonicalize_file_name(optarg)))
{
fprintf(stderr, "cannot canonicalize filename %s, does not exist\n", optarg);
return 1;
}
break;
case 'B': /* buildplace */
pc.buildplace = strdup(optarg);
break;
case 'c': /* --config */
load_ok = load_config_file(optarg, &pc);
if( load_ok > 1 ) exit( 5 );
if( config_ok != 0 ) config_ok = load_ok;
if (0>asprintf(&cmdstr, "--%s", long_options[index_point].name))
{
/* error */
fprintf(stderr, "out of memory constructing command-line options\n");
exit (1);
}
PASS_TO_PBUILDER_WITH_PARAM
break;
case 'M': /* pass through to pbuilder: duplicate with param */
if (0>asprintf(&cmdstr, "--%s", long_options[index_point].name))
{
/* error */
fprintf(stderr, "out of memory constructing command-line options\n");
exit (1);
}
PASS_TO_PBUILDER_WITH_PARAM
break;
case 'm': /* pass through to pbuilder: duplicate without param */
if (0>asprintf(&cmdstr, "--%s", long_options[index_point].name))
{
/* error */
fprintf(stderr, "out of memory constructing command-line options\n");
exit (1);
}
PBUILDER_ADD_PARAM(cmdstr);
break;
case 0:
/* other cases with long option with flags, this is expected
behavior, so ignore it, for most of the time.
*/
/* handle specific options which also give 0. */
/* first, generate 'cmdstr' which is useful anyway */
if (0>asprintf(&cmdstr, "--%s", long_options[index_point].name))
{
/* error */
fprintf(stderr, "out of memory constructing command-line options\n");
exit (1);
}
if (!strcmp(long_options[index_point].name,"mirror"))
{
pc.mirror=strdup(optarg);
}
else if (!strcmp(long_options[index_point].name,"buildresult"))
{
pc.buildresult=strdup(optarg);
}
else if (!strcmp(long_options[index_point].name,"distribution"))
{
pc.distribution=strdup(optarg);
}
else if (!strcmp(long_options[index_point].name,"no-cowdancer-update"))
{
pc.no_cowdancer_update=1;
}
else if (!strcmp(long_options[index_point].name,"debian-etch-workaround"))
{
pc.debian_etch_workaround=1;
}
else if (!strcmp(long_options[index_point].name,"architecture"))
{
pc.arch=strdup(optarg);
}
else if (!strcmp(long_options[index_point].name,"arch-diskdevice"))
{
pc.arch_diskdevice=strdup(optarg);
}
else if (!strcmp(long_options[index_point].name,"debug"))
{
pc.debug=1;
PBUILDER_ADD_PARAM(cmdstr);
}
else if (!strcmp(long_options[index_point].name,"inputfile"))
{
pc.inputfile[size_of_ntarray(pc.inputfile)]=strdup(optarg);
if (size_of_ntarray(pc.inputfile) >= MAX_CUSTOM_FILES)
{
fprintf(stderr, "too many inputfile options\n");
exit (1);
}
PASS_TO_PBUILDER_WITH_PARAM
}
else if (!strcmp(long_options[index_point].name,"outputfile"))
{
pc.inputfile[size_of_ntarray(pc.outputfile)]=strdup(optarg);
if (size_of_ntarray(pc.outputfile) >= MAX_CUSTOM_FILES)
{
fprintf(stderr, "too many outputfile options\n");
exit (1);
}
}
else if (!strcmp(long_options[index_point].name,"components"))
{
/* this is for qemubuilder */
pc.components=strdup(optarg);
/* pass it for cowbuilder */
PASS_TO_PBUILDER_WITH_PARAM
}
else if (!strcmp(long_options[index_point].name,"othermirror"))
{
/* this is for qemubuilder */
pc.othermirror=strdup(optarg);
/* pass it for cowbuilder */
PASS_TO_PBUILDER_WITH_PARAM
}
else if (!strcmp(long_options[index_point].name,"smp"))
{
/* this is for qemubuilder */
pc.smp=strdup(optarg);
/* pass it for cowbuilder */
PASS_TO_PBUILDER_WITH_PARAM
}
else if (!strcmp(long_options[index_point].name,"http-proxy"))
{
/* this is for qemubuilder */
pc.http_proxy=strdup(optarg);
/* pass it for cowbuilder */
PASS_TO_PBUILDER_WITH_PARAM
}
else if (!strcmp(long_options[index_point].name,"debbuildopts"))
{
/* this is for qemubuilder */
pc.debbuildopts=strdup(optarg);
/* pass it for cowbuilder */
PASS_TO_PBUILDER_WITH_PARAM
}
else if (!strcmp(long_options[index_point].name,"binary-arch"))
{
pc.binary_arch=1;
PBUILDER_ADD_PARAM(cmdstr);
}
break;
case 'h': /* -h */
case 'v': /* -v --version */
pc.operation=pbuilder_help;
break;
default:
fprintf(stderr, "Unhandled option\n");
/* Error case. */
return 1;
}
}
if( 0 != config_ok ) {
printf( "Couldn't load any valid config file.\n" );
exit( 6 );
}
/* set default values */
if (!pc.basepath)
asprintf(&(pc.basepath), "/var/cache/pbuilder/base.%s", keyword);
if (!pc.buildplace)
{
fprintf(stderr, "E: BUILDPLACE is not set\n");
return 1;
}
else
{
char* buildplace_ = pc.buildplace;
mkdir(buildplace_,0777); /* create if it does not exist */
/* Bug: 573126 This adds '//' if buildplace already ends with / */
asprintf(&(pc.buildplace), "%s/%s.%i",
buildplace_, keyword, (int)getpid());
free(buildplace_);
}
if (!pc.distribution)
pc.distribution=strdup("sid");
if (!pc.memory_megs)
pc.memory_megs=128;
switch(pc.operation)
{
case pbuilder_build:
if (!av[optind])
{
/* parameter missing */
fprintf(stderr, "E: parameter missing for build operation\n");
return 1;
}
return cpbuilder_build(&pc, av[optind]);
case pbuilder_create:
if (av[optind])
{
/* extra parameter */
fprintf(stderr, "E: too many parameters for create\n");
return 1;
}
return cpbuilder_create(&pc);
case pbuilder_update:
if (av[optind])
{
/* extra parameter */
fprintf(stderr, "E: too many parameters for update\n");
return 1;
}
return cpbuilder_update(&pc);
case pbuilder_login:
return cpbuilder_login(&pc);
case pbuilder_execute:
if (!av[optind])
{
/* parameter missing */
fprintf(stderr, "E: parameter missing for execute operation\n");
return 1;
}
return cpbuilder_execute(&pc, &av[optind]);
case pbuilder_help:
return cpbuilder_help();
case pbuilder_dumpconfig:
return cpbuilder_dumpconfig(&pc);
default:
fprintf (stderr, "E: No operation specified\n");
return 1;
}
return 0;
}