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solv.c
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/*
* Copyright (c) 2009-2013, Novell Inc.
*
* This program is licensed under the BSD license, read LICENSE.BSD
* for further information
*/
/* solv, a little software installer demoing the sat solver library */
/* things it does:
* - understands globs for package names / dependencies
* - understands .arch suffix
* - installation of commandline packages
* - repository data caching
* - on demand loading of secondary repository data
* - gpg and checksum verification
* - file conflicts
* - deltarpm support
* - fastestmirror implementation
*
* things available in the library but missing from solv:
* - vendor policy loading
* - soft locks file handling
* - multi version handling
*/
#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <dirent.h>
#include <fnmatch.h>
#include <unistd.h>
#include <zlib.h>
#include <fcntl.h>
#include <assert.h>
#include <sys/utsname.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <time.h>
#include <sys/time.h>
#include <sys/dir.h>
#include <sys/stat.h>
#include <sys/socket.h>
#include <netdb.h>
#include <poll.h>
#include <errno.h>
#include "pool.h"
#include "poolarch.h"
#include "repo.h"
#include "evr.h"
#include "policy.h"
#include "util.h"
#include "solver.h"
#include "solverdebug.h"
#include "chksum.h"
#include "repo_solv.h"
#include "selection.h"
#include "repo_write.h"
#ifdef ENABLE_RPMDB
#include "repo_rpmdb.h"
#include "pool_fileconflicts.h"
#endif
#ifdef ENABLE_PUBKEY
#include "repo_pubkey.h"
#endif
#ifdef ENABLE_DEBIAN
#include "repo_deb.h"
#endif
#ifdef ENABLE_RPMMD
#include "repo_rpmmd.h"
#include "repo_repomdxml.h"
#include "repo_updateinfoxml.h"
#include "repo_deltainfoxml.h"
#endif
#ifdef ENABLE_APPDATA
#include "repo_appdata.h"
#endif
#ifdef ENABLE_SUSEREPO
#include "repo_products.h"
#include "repo_susetags.h"
#include "repo_content.h"
#endif
#ifdef SUSE
#include "repo_autopattern.h"
#endif
#include "solv_xfopen.h"
#ifdef FEDORA
# define REPOINFO_PATH "/etc/yum.repos.d"
#endif
#ifdef SUSE
# define REPOINFO_PATH "/etc/zypp/repos.d"
# define PRODUCTS_PATH "/etc/products.d"
# define SOFTLOCKS_PATH "/var/lib/zypp/SoftLocks"
#endif
#ifdef ENABLE_APPDATA
# define APPDATA_PATH "/usr/share/appdata"
#endif
#define SOLVCACHE_PATH "/var/cache/solv"
#define METADATA_EXPIRE (60 * 15)
struct repoinfo {
Repo *repo;
char *alias;
char *name;
int enabled;
int autorefresh;
char *baseurl;
char *metalink;
char *mirrorlist;
char *path;
int type;
int pkgs_gpgcheck;
int repo_gpgcheck;
int priority;
int keeppackages;
int metadata_expire;
char **components;
int ncomponents;
unsigned char cookie[32];
unsigned char extcookie[32];
int incomplete;
};
#ifdef FEDORA
char *
yum_substitute(Pool *pool, char *line)
{
char *p, *p2;
static char *releaseevr;
static char *basearch;
if (!line)
{
solv_free(releaseevr);
releaseevr = 0;
solv_free(basearch);
basearch = 0;
return 0;
}
p = line;
while ((p2 = strchr(p, '$')) != 0)
{
if (!strncmp(p2, "$releasever", 11))
{
if (!releaseevr)
{
void *rpmstate;
Queue q;
queue_init(&q);
rpmstate = rpm_state_create(pool, pool_get_rootdir(pool));
rpm_installedrpmdbids(rpmstate, "Providename", "redhat-release", &q);
if (q.count)
{
void *handle;
char *p;
handle = rpm_byrpmdbid(rpmstate, q.elements[0]);
releaseevr = handle ? rpm_query(handle, SOLVABLE_EVR) : 0;
if (releaseevr && (p = strchr(releaseevr, '-')) != 0)
*p = 0;
}
rpm_state_free(rpmstate);
queue_free(&q);
if (!releaseevr)
{
fprintf(stderr, "no installed package provides 'redhat-release', cannot determine $releasever\n");
exit(1);
}
}
*p2 = 0;
p = pool_tmpjoin(pool, line, releaseevr, p2 + 11);
p2 = p + (p2 - line);
line = p;
p = p2 + strlen(releaseevr);
continue;
}
if (!strncmp(p2, "$basearch", 9))
{
if (!basearch)
{
struct utsname un;
if (uname(&un))
{
perror("uname");
exit(1);
}
basearch = strdup(un.machine);
if (basearch[0] == 'i' && basearch[1] && !strcmp(basearch + 2, "86"))
basearch[1] = '3';
}
*p2 = 0;
p = pool_tmpjoin(pool, line, basearch, p2 + 9);
p2 = p + (p2 - line);
line = p;
p = p2 + strlen(basearch);
continue;
}
p = p2 + 1;
}
return line;
}
#endif
#define TYPE_UNKNOWN 0
#define TYPE_SUSETAGS 1
#define TYPE_RPMMD 2
#define TYPE_PLAINDIR 3
#define TYPE_DEBIAN 4
static int
read_repoinfos_sort(const void *ap, const void *bp)
{
const struct repoinfo *a = ap;
const struct repoinfo *b = bp;
return strcmp(a->alias, b->alias);
}
#if defined(SUSE) || defined(FEDORA)
struct repoinfo *
read_repoinfos(Pool *pool, int *nrepoinfosp)
{
const char *reposdir = REPOINFO_PATH;
char buf[4096];
char buf2[4096], *kp, *vp, *kpe;
DIR *dir;
FILE *fp;
struct dirent *ent;
int l, rdlen;
struct repoinfo *repoinfos = 0, *cinfo;
int nrepoinfos = 0;
rdlen = strlen(reposdir);
dir = opendir(reposdir);
if (!dir)
{
*nrepoinfosp = 0;
return 0;
}
while ((ent = readdir(dir)) != 0)
{
if (ent->d_name[0] == '.')
continue;
l = strlen(ent->d_name);
if (l < 6 || rdlen + 2 + l >= sizeof(buf) || strcmp(ent->d_name + l - 5, ".repo") != 0)
continue;
snprintf(buf, sizeof(buf), "%s/%s", reposdir, ent->d_name);
if ((fp = fopen(buf, "r")) == 0)
{
perror(buf);
continue;
}
cinfo = 0;
while(fgets(buf2, sizeof(buf2), fp))
{
l = strlen(buf2);
if (l == 0)
continue;
while (l && (buf2[l - 1] == '\n' || buf2[l - 1] == ' ' || buf2[l - 1] == '\t'))
buf2[--l] = 0;
kp = buf2;
while (*kp == ' ' || *kp == '\t')
kp++;
if (!*kp || *kp == '#')
continue;
#ifdef FEDORA
if (strchr(kp, '$'))
kp = yum_substitute(pool, kp);
#endif
if (*kp == '[')
{
vp = strrchr(kp, ']');
if (!vp)
continue;
*vp = 0;
repoinfos = solv_extend(repoinfos, nrepoinfos, 1, sizeof(*repoinfos), 15);
cinfo = repoinfos + nrepoinfos++;
memset(cinfo, 0, sizeof(*cinfo));
cinfo->alias = strdup(kp + 1);
cinfo->type = TYPE_RPMMD;
cinfo->autorefresh = 1;
cinfo->priority = 99;
#ifndef FEDORA
cinfo->repo_gpgcheck = 1;
#endif
cinfo->metadata_expire = METADATA_EXPIRE;
continue;
}
if (!cinfo)
continue;
vp = strchr(kp, '=');
if (!vp)
continue;
for (kpe = vp - 1; kpe >= kp; kpe--)
if (*kpe != ' ' && *kpe != '\t')
break;
if (kpe == kp)
continue;
vp++;
while (*vp == ' ' || *vp == '\t')
vp++;
kpe[1] = 0;
if (!strcmp(kp, "name"))
cinfo->name = strdup(vp);
else if (!strcmp(kp, "enabled"))
cinfo->enabled = *vp == '0' ? 0 : 1;
else if (!strcmp(kp, "autorefresh"))
cinfo->autorefresh = *vp == '0' ? 0 : 1;
else if (!strcmp(kp, "gpgcheck"))
cinfo->pkgs_gpgcheck = *vp == '0' ? 0 : 1;
else if (!strcmp(kp, "repo_gpgcheck"))
cinfo->repo_gpgcheck = *vp == '0' ? 0 : 1;
else if (!strcmp(kp, "baseurl"))
cinfo->baseurl = strdup(vp);
else if (!strcmp(kp, "mirrorlist"))
{
if (strstr(vp, "metalink"))
cinfo->metalink = strdup(vp);
else
cinfo->mirrorlist = strdup(vp);
}
else if (!strcmp(kp, "path"))
{
if (vp && strcmp(vp, "/") != 0)
cinfo->path = strdup(vp);
}
else if (!strcmp(kp, "type"))
{
if (!strcmp(vp, "yast2"))
cinfo->type = TYPE_SUSETAGS;
else if (!strcmp(vp, "rpm-md"))
cinfo->type = TYPE_RPMMD;
else if (!strcmp(vp, "plaindir"))
cinfo->type = TYPE_PLAINDIR;
else
cinfo->type = TYPE_UNKNOWN;
}
else if (!strcmp(kp, "priority"))
cinfo->priority = atoi(vp);
else if (!strcmp(kp, "keeppackages"))
cinfo->keeppackages = *vp == '0' ? 0 : 1;
}
fclose(fp);
cinfo = 0;
}
closedir(dir);
qsort(repoinfos, nrepoinfos, sizeof(*repoinfos), read_repoinfos_sort);
*nrepoinfosp = nrepoinfos;
return repoinfos;
}
#endif
#ifdef DEBIAN
struct repoinfo *
read_repoinfos(Pool *pool, int *nrepoinfosp)
{
FILE *fp;
char buf[4096];
char buf2[4096];
int l;
char *kp, *url, *distro;
struct repoinfo *repoinfos = 0, *cinfo;
int nrepoinfos = 0;
DIR *dir = 0;
struct dirent *ent;
fp = fopen("/etc/apt/sources.list", "r");
while (1)
{
if (!fp)
{
if (!dir)
{
dir = opendir("/etc/apt/sources.list.d");
if (!dir)
break;
}
if ((ent = readdir(dir)) == 0)
{
closedir(dir);
break;
}
if (ent->d_name[0] == '.')
continue;
l = strlen(ent->d_name);
if (l < 5 || strcmp(ent->d_name + l - 5, ".list") != 0)
continue;
snprintf(buf, sizeof(buf), "%s/%s", "/etc/apt/sources.list.d", ent->d_name);
if (!(fp = fopen(buf, "r")))
continue;
}
while(fgets(buf2, sizeof(buf2), fp))
{
l = strlen(buf2);
if (l == 0)
continue;
while (l && (buf2[l - 1] == '\n' || buf2[l - 1] == ' ' || buf2[l - 1] == '\t'))
buf2[--l] = 0;
kp = buf2;
while (*kp == ' ' || *kp == '\t')
kp++;
if (!*kp || *kp == '#')
continue;
if (strncmp(kp, "deb", 3) != 0)
continue;
kp += 3;
if (*kp != ' ' && *kp != '\t')
continue;
while (*kp == ' ' || *kp == '\t')
kp++;
if (!*kp)
continue;
url = kp;
while (*kp && *kp != ' ' && *kp != '\t')
kp++;
if (*kp)
*kp++ = 0;
while (*kp == ' ' || *kp == '\t')
kp++;
if (!*kp)
continue;
distro = kp;
while (*kp && *kp != ' ' && *kp != '\t')
kp++;
if (*kp)
*kp++ = 0;
while (*kp == ' ' || *kp == '\t')
kp++;
if (!*kp)
continue;
repoinfos = solv_extend(repoinfos, nrepoinfos, 1, sizeof(*repoinfos), 15);
cinfo = repoinfos + nrepoinfos++;
memset(cinfo, 0, sizeof(*cinfo));
cinfo->baseurl = strdup(url);
cinfo->alias = solv_dupjoin(url, "/", distro);
cinfo->name = strdup(distro);
cinfo->type = TYPE_DEBIAN;
cinfo->enabled = 1;
cinfo->autorefresh = 1;
cinfo->repo_gpgcheck = 1;
cinfo->metadata_expire = METADATA_EXPIRE;
while (*kp)
{
char *compo;
while (*kp == ' ' || *kp == '\t')
kp++;
if (!*kp)
break;
compo = kp;
while (*kp && *kp != ' ' && *kp != '\t')
kp++;
if (*kp)
*kp++ = 0;
cinfo->components = solv_extend(cinfo->components, cinfo->ncomponents, 1, sizeof(*cinfo->components), 15);
cinfo->components[cinfo->ncomponents++] = strdup(compo);
}
}
fclose(fp);
fp = 0;
}
qsort(repoinfos, nrepoinfos, sizeof(*repoinfos), read_repoinfos_sort);
*nrepoinfosp = nrepoinfos;
return repoinfos;
}
#endif
void
free_repoinfos(struct repoinfo *repoinfos, int nrepoinfos)
{
int i, j;
for (i = 0; i < nrepoinfos; i++)
{
struct repoinfo *cinfo = repoinfos + i;
solv_free(cinfo->name);
solv_free(cinfo->alias);
solv_free(cinfo->path);
solv_free(cinfo->metalink);
solv_free(cinfo->mirrorlist);
solv_free(cinfo->baseurl);
for (j = 0; j < cinfo->ncomponents; j++)
solv_free(cinfo->components[j]);
solv_free(cinfo->components);
}
solv_free(repoinfos);
}
static inline int
opentmpfile()
{
char tmpl[100];
int fd;
strcpy(tmpl, "/var/tmp/solvXXXXXX");
fd = mkstemp(tmpl);
if (fd < 0)
{
perror("mkstemp");
exit(1);
}
unlink(tmpl);
return fd;
}
static int
verify_checksum(int fd, const char *file, const unsigned char *chksum, Id chksumtype)
{
char buf[1024];
const unsigned char *sum;
Chksum *h;
int l;
h = solv_chksum_create(chksumtype);
if (!h)
{
printf("%s: unknown checksum type\n", file);
return 0;
}
while ((l = read(fd, buf, sizeof(buf))) > 0)
solv_chksum_add(h, buf, l);
lseek(fd, 0, SEEK_SET);
l = 0;
sum = solv_chksum_get(h, &l);
if (memcmp(sum, chksum, l))
{
printf("%s: checksum mismatch\n", file);
solv_chksum_free(h, 0);
return 0;
}
solv_chksum_free(h, 0);
return 1;
}
void
findfastest(char **urls, int nurls)
{
int i, j, port;
int *socks, qc;
struct pollfd *fds;
char *p, *p2, *q;
char portstr[16];
struct addrinfo hints, *result;;
fds = solv_calloc(nurls, sizeof(*fds));
socks = solv_calloc(nurls, sizeof(*socks));
for (i = 0; i < nurls; i++)
{
socks[i] = -1;
p = strchr(urls[i], '/');
if (!p)
continue;
if (p[1] != '/')
continue;
p += 2;
q = strchr(p, '/');
qc = 0;
if (q)
{
qc = *q;
*q = 0;
}
if ((p2 = strchr(p, '@')) != 0)
p = p2 + 1;
port = 80;
if (!strncmp("https:", urls[i], 6))
port = 443;
else if (!strncmp("ftp:", urls[i], 4))
port = 21;
if ((p2 = strrchr(p, ':')) != 0)
{
port = atoi(p2 + 1);
if (q)
*q = qc;
q = p2;
qc = *q;
*q = 0;
}
sprintf(portstr, "%d", port);
memset(&hints, 0, sizeof(struct addrinfo));
hints.ai_family = AF_UNSPEC;
hints.ai_socktype = SOCK_STREAM;
hints.ai_flags = AI_NUMERICSERV;
result = 0;
if (!getaddrinfo(p, portstr, &hints, &result))
{
socks[i] = socket(result->ai_family, result->ai_socktype, result->ai_protocol);
if (socks[i] >= 0)
{
fcntl(socks[i], F_SETFL, O_NONBLOCK);
if (connect(socks[i], result->ai_addr, result->ai_addrlen) == -1)
{
if (errno != EINPROGRESS)
{
close(socks[i]);
socks[i] = -1;
}
}
}
freeaddrinfo(result);
}
if (q)
*q = qc;
}
for (;;)
{
for (i = j = 0; i < nurls; i++)
{
if (socks[i] < 0)
continue;
fds[j].fd = socks[i];
fds[j].events = POLLOUT;
j++;
}
if (j < 2)
{
i = j - 1;
break;
}
if (poll(fds, j, 10000) <= 0)
{
i = -1; /* something is wrong */
break;
}
for (i = 0; i < j; i++)
if ((fds[i].revents & POLLOUT) != 0)
{
int soe = 0;
socklen_t soel = sizeof(int);
if (getsockopt(fds[i].fd, SOL_SOCKET, SO_ERROR, &soe, &soel) == -1 || soe != 0)
{
/* connect failed, kill socket */
for (j = 0; j < nurls; j++)
if (socks[j] == fds[i].fd)
{
close(socks[j]);
socks[j] = -1;
}
i = j + 1;
break;
}
break; /* horray! */
}
if (i == j + 1)
continue;
if (i == j)
i = -1; /* something is wrong, no bit was set */
break;
}
/* now i contains the fastest fd index */
if (i >= 0)
{
for (j = 0; j < nurls; j++)
if (socks[j] == fds[i].fd)
break;
if (j != 0)
{
char *url0 = urls[0];
urls[0] = urls[j];
urls[j] = url0;
}
}
for (i = j = 0; i < nurls; i++)
if (socks[i] >= 0)
close(socks[i]);
free(socks);
free(fds);
}
char *
findmetalinkurl(FILE *fp, unsigned char *chksump, Id *chksumtypep)
{
char buf[4096], *bp, *ep;
char **urls = 0;
int nurls = 0;
int i;
if (chksumtypep)
*chksumtypep = 0;
while((bp = fgets(buf, sizeof(buf), fp)) != 0)
{
while (*bp == ' ' || *bp == '\t')
bp++;
if (chksumtypep && !*chksumtypep && !strncmp(bp, "<hash type=\"sha256\">", 20))
{
bp += 20;
if (solv_hex2bin((const char **)&bp, chksump, 32) == 32)
*chksumtypep = REPOKEY_TYPE_SHA256;
continue;
}
if (strncmp(bp, "<url", 4))
continue;
bp = strchr(bp, '>');
if (!bp)
continue;
bp++;
ep = strstr(bp, "repodata/repomd.xml</url>");
if (!ep)
continue;
*ep = 0;
if (strncmp(bp, "http", 4))
continue;
urls = solv_extend(urls, nurls, 1, sizeof(*urls), 15);
urls[nurls++] = strdup(bp);
}
if (nurls)
{
if (nurls > 1)
findfastest(urls, nurls > 5 ? 5 : nurls);
bp = urls[0];
urls[0] = 0;
for (i = 0; i < nurls; i++)
solv_free(urls[i]);
solv_free(urls);
ep = strchr(bp, '/');
if ((ep = strchr(ep + 2, '/')) != 0)
{
*ep = 0;
printf("[using mirror %s]\n", bp);
*ep = '/';
}
return bp;
}
return 0;
}
char *
findmirrorlisturl(FILE *fp)
{
char buf[4096], *bp, *ep;
int i, l;
char **urls = 0;
int nurls = 0;
while((bp = fgets(buf, sizeof(buf), fp)) != 0)
{
while (*bp == ' ' || *bp == '\t')
bp++;
if (!*bp || *bp == '#')
continue;
l = strlen(bp);
while (l > 0 && (bp[l - 1] == ' ' || bp[l - 1] == '\t' || bp[l - 1] == '\n'))
bp[--l] = 0;
urls = solv_extend(urls, nurls, 1, sizeof(*urls), 15);
urls[nurls++] = strdup(bp);
}
if (nurls)
{
if (nurls > 1)
findfastest(urls, nurls > 5 ? 5 : nurls);
bp = urls[0];
urls[0] = 0;
for (i = 0; i < nurls; i++)
solv_free(urls[i]);
solv_free(urls);
ep = strchr(bp, '/');
if ((ep = strchr(ep + 2, '/')) != 0)
{
*ep = 0;
printf("[using mirror %s]\n", bp);
*ep = '/';
}
return bp;
}
return 0;
}
static inline int
iscompressed(const char *name)
{
return solv_xfopen_iscompressed(name) != 0;
}
FILE *
curlfopen(struct repoinfo *cinfo, const char *file, int uncompress, const unsigned char *chksum, Id chksumtype, int markincomplete)
{
FILE *fp;
pid_t pid;
int fd, l;
int status;
char url[4096];
const char *baseurl = cinfo->baseurl;
if (!baseurl)
{
if (!cinfo->metalink && !cinfo->mirrorlist)
return 0;
if (file != cinfo->metalink && file != cinfo->mirrorlist)
{
unsigned char mlchksum[32];
Id mlchksumtype;
fp = curlfopen(cinfo, cinfo->metalink ? cinfo->metalink : cinfo->mirrorlist, 0, 0, 0, 0);
mlchksumtype = 0;
if (!fp)
return 0;
if (cinfo->metalink)
cinfo->baseurl = findmetalinkurl(fp, mlchksum, &mlchksumtype);
else
cinfo->baseurl = findmirrorlisturl(fp);
fclose(fp);
if (!cinfo->baseurl)
return 0;
#ifdef FEDORA
if (strchr(cinfo->baseurl, '$'))
{
char *b = yum_substitute(cinfo->repo->pool, cinfo->baseurl);
free(cinfo->baseurl);
cinfo->baseurl = strdup(b);
}
#endif
if (!chksumtype && mlchksumtype && !strcmp(file, "repodata/repomd.xml"))
{
chksumtype = mlchksumtype;
chksum = mlchksum;
}
return curlfopen(cinfo, file, uncompress, chksum, chksumtype, markincomplete);
}
snprintf(url, sizeof(url), "%s", file);
}
else
{
l = strlen(baseurl);
if (l && baseurl[l - 1] == '/')
snprintf(url, sizeof(url), "%s%s", baseurl, file);
else
snprintf(url, sizeof(url), "%s/%s", baseurl, file);
}
fd = opentmpfile();
// printf("url: %s\n", url);
if ((pid = fork()) == (pid_t)-1)
{
perror("fork");
exit(1);
}
if (pid == 0)
{
if (fd != 1)
{
dup2(fd, 1);
close(fd);
}
execlp("curl", "curl", "-f", "-s", "-L", url, (char *)0);
perror("curl");
_exit(0);
}
status = 0;
while (waitpid(pid, &status, 0) != pid)
;
if (lseek(fd, 0, SEEK_END) == 0 && (!status || !chksumtype))
{
/* empty file */
close(fd);
return 0;
}
lseek(fd, 0, SEEK_SET);
if (status)
{
printf("%s: download error %d\n", file, status >> 8 ? status >> 8 : status);
if (markincomplete)
cinfo->incomplete = 1;
close(fd);
return 0;
}
if (chksumtype && !verify_checksum(fd, file, chksum, chksumtype))
{
if (markincomplete)
cinfo->incomplete = 1;
close(fd);
return 0;
}
fcntl(fd, F_SETFD, FD_CLOEXEC);
if (uncompress)
{
if (solv_xfopen_iscompressed(file) < 0)
{
printf("%s: unsupported compression\n", file);
if (markincomplete)
cinfo->incomplete = 1;
close(fd);
return 0;
}
fp = solv_xfopen_fd(file, fd, "r");
}
else
fp = fdopen(fd, "r");
if (!fp)
close(fd);
return fp;
}
#ifndef DEBIAN
static void
cleanupgpg(char *gpgdir)
{
char cmd[256];
snprintf(cmd, sizeof(cmd), "%s/pubring.gpg", gpgdir);
unlink(cmd);
snprintf(cmd, sizeof(cmd), "%s/pubring.gpg~", gpgdir);
unlink(cmd);
snprintf(cmd, sizeof(cmd), "%s/secring.gpg", gpgdir);
unlink(cmd);
snprintf(cmd, sizeof(cmd), "%s/trustdb.gpg", gpgdir);
unlink(cmd);
snprintf(cmd, sizeof(cmd), "%s/keys", gpgdir);
unlink(cmd);
rmdir(gpgdir);
}
int
checksig(Pool *sigpool, FILE *fp, FILE *sigfp)
{
char *gpgdir;
char *keysfile;
const char *pubkey;
char cmd[256];
FILE *kfp;
Solvable *s;
Id p;
off_t posfp, possigfp;
int r, nkeys;
gpgdir = mkdtemp(pool_tmpjoin(sigpool, "/var/tmp/solvgpg.XXXXXX", 0, 0));
if (!gpgdir)
return 0;
keysfile = pool_tmpjoin(sigpool, gpgdir, "/keys", 0);
if (!(kfp = fopen(keysfile, "w")) )
{
cleanupgpg(gpgdir);
return 0;
}
nkeys = 0;
for (p = 1, s = sigpool->solvables + p; p < sigpool->nsolvables; p++, s++)
{
if (!s->repo)
continue;
pubkey = solvable_lookup_str(s, SOLVABLE_DESCRIPTION);
if (!pubkey || !*pubkey)
continue;
if (fwrite(pubkey, strlen(pubkey), 1, kfp) != 1)
break;
if (fputc('\n', kfp) == EOF) /* Just in case... */
break;
nkeys++;
}
if (fclose(kfp) || !nkeys)
{
cleanupgpg(gpgdir);
return 0;
}
snprintf(cmd, sizeof(cmd), "gpg2 -q --homedir %s --import %s", gpgdir, keysfile);
if (system(cmd))
{
fprintf(stderr, "key import error\n");
cleanupgpg(gpgdir);
return 0;
}
unlink(keysfile);
posfp = lseek(fileno(fp), 0, SEEK_CUR);
lseek(fileno(fp), 0, SEEK_SET);
possigfp = lseek(fileno(sigfp), 0, SEEK_CUR);
lseek(fileno(sigfp), 0, SEEK_SET);
snprintf(cmd, sizeof(cmd), "gpgv -q --homedir %s --keyring %s/pubring.gpg /dev/fd/%d /dev/fd/%d >/dev/null 2>&1", gpgdir, gpgdir, fileno(sigfp), fileno(fp));
fcntl(fileno(fp), F_SETFD, 0); /* clear CLOEXEC */
fcntl(fileno(sigfp), F_SETFD, 0); /* clear CLOEXEC */
r = system(cmd);
lseek(fileno(sigfp), possigfp, SEEK_SET);
lseek(fileno(fp), posfp, SEEK_SET);
fcntl(fileno(fp), F_SETFD, FD_CLOEXEC);
fcntl(fileno(sigfp), F_SETFD, FD_CLOEXEC);
cleanupgpg(gpgdir);
return r == 0 ? 1 : 0;
}
#else
static int
checksig(Pool *sigpool, FILE *fp, FILE *sigfp)
{
char cmd[256];
int r;
snprintf(cmd, sizeof(cmd), "gpgv -q --keyring /etc/apt/trusted.gpg /dev/fd/%d /dev/fd/%d >/dev/null 2>&1", fileno(sigfp), fileno(fp));
fcntl(fileno(fp), F_SETFD, 0); /* clear CLOEXEC */
fcntl(fileno(sigfp), F_SETFD, 0); /* clear CLOEXEC */
r = system(cmd);
fcntl(fileno(fp), F_SETFD, FD_CLOEXEC);
fcntl(fileno(sigfp), F_SETFD, FD_CLOEXEC);
return r == 0 ? 1 : 0;