/*
* Here we construct the package size summaries for the headers. The
* pkgmap file associated with fp must be rewound to the beginning of the
* file. Note that we read three values from pkgmap first line in order
* to get the *actual* size if this package is compressed.
* This returns
* 0 : error
* 2 : not a compressed package
* 3 : compressed package
* and sets has_comp_size to indicate whether or not this is a compressed
* package.
*/
static int
rd_map_size(FILE *fp, int *npts, int *maxpsz, int *cmpsize)
{
int n;
char line_buffer[MAP_STAT_SIZE];
/* First read the null terminated first line */
if (fgets(line_buffer, MAP_STAT_SIZE, fp) == NULL) {
progerr(pkg_gt(ERR_TRANSFER));
logerr(pkg_gt(MSG_NOSIZE));
(void) fclose(fp);
ecleanup();
return (0);
}
n = sscanf(line_buffer, ": %d %d %d", npts, maxpsz, cmpsize);
if (n == 3) /* A valid compressed package entry */
has_comp_size = 1;
else if (n == 2) /* A valid standard package entry */
has_comp_size = 0;
else { /* invalid entry */
progerr(pkg_gt(ERR_TRANSFER));
logerr(pkg_gt(MSG_NOSIZE));
(void) fclose(fp);
ecleanup();
return (0);
}
return (n);
}
int
epclose(FILE *pp)
{
int n;
n = pclose(pp);
if (n == 0)
ecleanup();
return (n);
}
static int
wdsheader(struct dm_buf *hdr, char *src, char *device, char **pkg, PKCS7 *sig)
{
FILE *fp;
char path[PATH_MAX], tmp_entry[ENTRY_MAX],
tmp_file[L_tmpnam+1];
char srcpath[PATH_MAX];
int i, n;
int list_fd;
int block_cnt;
int len;
char cwd[MAXPATHLEN + 1];
boolean_t making_sig = B_FALSE;
making_sig = (sig != NULL) ? B_TRUE : B_FALSE;
(void) ds_close(0);
if (dstdev.pathname)
ds_fd = creat(device, 0644);
else
ds_fd = open(device, 1);
if (ds_fd < 0) {
progerr(pkg_gt(ERR_TRANSFER));
logerr(pkg_gt(MSG_OPEN), device, errno);
return (1);
}
if (ds_ginit(device) < 0) {
progerr(pkg_gt(ERR_TRANSFER));
logerr(pkg_gt(MSG_OPEN), device, errno);
(void) ds_close(0);
return (1);
}
/*
* The loop below assures compatibility with tapes that don't
* have a block size (e.g.: Exabyte) by forcing EOR at the end
* of each 512 bytes.
*/
for (block_cnt = 0; block_cnt < hdr->allocation;
block_cnt += BLK_SIZE) {
(void) write(ds_fd, (hdr->text_buffer + block_cnt), BLK_SIZE);
}
/*
* write the first cpio() archive to the datastream
* which should contain the pkginfo & pkgmap files
* for all packages
*/
(void) tmpnam(tmp_file); /* temporary file name */
if ((list_fd = open(tmp_file, O_RDWR | O_CREAT, 0644)) == -1) {
progerr(pkg_gt(ERR_TRANSFER));
logerr(pkg_gt(MSG_NOTMPFIL), tmp_file);
return (1);
}
/*
* Create a cpio-compatible list of the requisite files in
* the temporary file.
*/
if (!making_sig) {
for (i = 0; pkg[i]; i++) {
register ssize_t entry_size;
/*
* Copy pkginfo and pkgmap filenames into the
* temporary string allowing for the first line
* as a special case.
*/
entry_size = sprintf(tmp_entry,
(i == 0) ? "%s/%s\n%s/%s" : "\n%s/%s\n%s/%s",
pkg[i], PKGINFO, pkg[i], PKGMAP);
if (write(list_fd, tmp_entry,
entry_size) != entry_size) {
progerr(pkg_gt(ERR_TRANSFER));
logerr(pkg_gt(MSG_NOTMPFIL), tmp_file);
(void) close(list_fd);
ecleanup();
return (1);
}
}
} else {
register ssize_t entry_size;
/*
* if we're making a signature, we must make a
* temporary area full of symlinks to the requisite
* files, plus an extra entry for the signature, so
* that cpio will put all files and signature in the
* same archive in a single invocation of cpio.
*/
tmpsymdir = xstrdup(tmpnam(NULL));
if (mkdir(tmpsymdir, S_IRWXU)) {
progerr(pkg_gt(ERR_TRANSFER));
logerr(pkg_gt(MSG_MKDIR), tmpsymdir);
return (1);
}
/* generate the signature */
if (((len = snprintf(path, PATH_MAX, "%s/%s",
tmpsymdir, SIGNATURE_FILENAME)) >= PATH_MAX) ||
len < 0) {
progerr(pkg_gt(ERR_TRANSFER));
logerr(pkg_gt(MSG_NOTMPFIL), tmpsymdir);
cleanup();
return (1);
}
if ((fp = fopen(path, "w")) == NULL) {
progerr(pkg_gt(ERR_TRANSFER));
logerr(pkg_gt(MSG_NOTMPFIL), path);
cleanup();
return (1);
}
(void) PEM_write_PKCS7(fp, sig);
(void) fclose(fp);
for (i = 0; pkg[i]; i++) {
(void) snprintf(path, sizeof (path),
"%s/%s", tmpsymdir, pkg[i]);
if (mkdir(path, 0755)) {
progerr(pkg_gt(ERR_TRANSFER));
logerr(pkg_gt(MSG_MKDIR), path);
cleanup();
return (1);
}
(void) snprintf(path, sizeof (path),
"%s/%s/%s", tmpsymdir, pkg[i], PKGINFO);
(void) snprintf(srcpath, sizeof (srcpath),
"%s/%s/%s", src, pkg[i], PKGINFO);
if (symlink(srcpath, path) != 0) {
progerr(pkg_gt(ERR_TRANSFER));
logerr(pkg_gt(MSG_SYMLINK), path, srcpath);
cleanup();
return (1);
}
(void) snprintf(path, sizeof (path),
"%s/%s/%s", tmpsymdir, pkg[i], PKGMAP);
(void) snprintf(srcpath, sizeof (srcpath),
"%s/%s/%s", src, pkg[i], PKGMAP);
if (symlink(srcpath, path) != 0) {
progerr(pkg_gt(ERR_TRANSFER));
logerr(pkg_gt(MSG_SYMLINK), path, srcpath);
cleanup();
return (1);
}
/*
* Copy pkginfo and pkgmap filenames into the
* temporary string allowing for the first line
* as a special case.
*/
entry_size = snprintf(tmp_entry, sizeof (tmp_entry),
(i == 0) ? "%s/%s\n%s/%s" : "\n%s/%s\n%s/%s",
pkg[i], PKGINFO, pkg[i], PKGMAP);
if (write(list_fd, tmp_entry,
entry_size) != entry_size) {
progerr(pkg_gt(ERR_TRANSFER));
logerr(pkg_gt(MSG_NOTMPFIL), tmp_file);
(void) close(list_fd);
ecleanup();
cleanup();
return (1);
}
}
/* add signature to list of files */
entry_size = snprintf(tmp_entry, sizeof (tmp_entry), "\n%s",
SIGNATURE_FILENAME);
if (write(list_fd, tmp_entry, entry_size) != entry_size) {
progerr(pkg_gt(ERR_TRANSFER));
logerr(pkg_gt(MSG_NOTMPFIL), tmp_file);
(void) close(list_fd);
ecleanup();
cleanup();
return (1);
}
}
(void) lseek(list_fd, 0, SEEK_SET);
if (!making_sig) {
(void) snprintf(tmp_entry, sizeof (tmp_entry),
"%s -ocD -C %d", CPIOPROC, (int)BLK_SIZE);
} else {
/*
* when making a signature, we must make sure to follow
* symlinks during the cpio so that we don't archive
* the links themselves
*/
(void) snprintf(tmp_entry, sizeof (tmp_entry),
"%s -ocDL -C %d", CPIOPROC, (int)BLK_SIZE);
}
if (making_sig) {
/* save cwd and change to symlink dir for cpio invocation */
if (getcwd(cwd, MAXPATHLEN + 1) == NULL) {
logerr(pkg_gt(ERR_GETWD));
progerr(pkg_gt(ERR_TRANSFER));
cleanup();
return (1);
}
if (chdir(tmpsymdir)) {
progerr(pkg_gt(ERR_TRANSFER));
logerr(pkg_gt(MSG_CHDIR), tmpsymdir);
cleanup();
return (1);
}
}
if (n = esystem(tmp_entry, list_fd, ds_fd)) {
rpterr();
progerr(pkg_gt(ERR_TRANSFER));
logerr(pkg_gt(MSG_CMDFAIL), tmp_entry, n);
(void) close(list_fd);
(void) unlink(tmp_file);
cleanup();
return (1);
}
(void) close(list_fd);
(void) unlink(tmp_file);
if (making_sig) {
/* change to back to src dir for subsequent operations */
if (chdir(cwd)) {
progerr(pkg_gt(ERR_TRANSFER));
logerr(pkg_gt(MSG_CHDIR), cwd);
cleanup();
return (1);
}
}
return (0);
}
static struct dm_buf *
genheader(char *src, char **pkg)
{
FILE *fp;
char path[MAXPATHLEN], tmp_entry[ENTRY_MAX];
int i, n, nparts, maxpsize;
int partcnt;
long totsize;
struct stat statbuf;
if ((hdrbuf.text_buffer = (char *)malloc(BLK_SIZE)) == NULL) {
progerr(pkg_gt(ERR_TRANSFER));
logerr(pkg_gt(MSG_MEM));
return (NULL);
}
/* clear the new memory */
(void) memset(hdrbuf.text_buffer, '\0', BLK_SIZE);
/* set up the buffer control structure for the header */
hdrbuf.offset = 0;
hdrbuf.allocation = BLK_SIZE;
(void) cat_and_count(&hdrbuf, HDR_PREFIX);
(void) cat_and_count(&hdrbuf, "\n");
nparts = maxpsize = 0;
totsize = 0;
for (i = 0; pkg[i]; i++) {
(void) snprintf(path, MAXPATHLEN, "%s/%s/%s",
src, pkg[i], PKGINFO);
if (stat(path, &statbuf) < 0) {
progerr(pkg_gt(ERR_TRANSFER));
logerr(pkg_gt(MSG_BADPKGINFO));
ecleanup();
return (NULL);
}
totsize += statbuf.st_size/BLK_SIZE + 1;
}
/*
* totsize contains number of blocks used by the pkginfo files
*/
totsize += i/4 + 1;
if (dstdev.capacity && totsize > dstdev.capacity) {
progerr(pkg_gt(ERR_TRANSFER));
logerr(pkg_gt(MSG_NOSPACE), totsize, dstdev.capacity);
ecleanup();
return (NULL);
}
ds_volcnt = 1;
for (i = 0; pkg[i]; i++) {
partcnt = 0;
(void) snprintf(path, MAXPATHLEN, "%s/%s/%s",
src, pkg[i], PKGMAP);
if ((fp = fopen(path, "r")) == NULL) {
progerr(pkg_gt(ERR_TRANSFER));
logerr(pkg_gt(MSG_NOPKGMAP), pkg[i]);
ecleanup();
return (NULL);
}
/* Evaluate the first entry in pkgmap */
n = rd_map_size(fp, &nparts, &maxpsize, &compressedsize);
if (n == 3) /* It's a compressed package */
/* The header needs the *real* size */
maxpsize = compressedsize;
else if (n == 0) /* pkgmap is corrupt */
return (NULL);
if (dstdev.capacity && maxpsize > dstdev.capacity) {
progerr(pkg_gt(ERR_TRANSFER));
logerr(pkg_gt(MSG_NOSPACE), (long)maxpsize,
dstdev.capacity);
(void) fclose(fp);
ecleanup();
return (NULL);
}
/* add pkg name, number of parts and the max part size */
if (snprintf(tmp_entry, ENTRY_MAX, "%s %d %d",
pkg[i], nparts, maxpsize) >= ENTRY_MAX) {
progerr(pkg_gt(ERR_TRANSFER));
logerr(pkg_gt(ERR_MEM));
(void) fclose(fp);
ecleanup();
return (NULL);
}
if (cat_and_count(&hdrbuf, tmp_entry)) {
progerr(pkg_gt(ERR_TRANSFER));
logerr(pkg_gt(MSG_MEM));
(void) fclose(fp);
ecleanup();
return (NULL);
}
totsize += nparts * maxpsize;
if (dstdev.capacity && dstdev.capacity < totsize) {
int lastpartcnt = 0;
if (totsize)
totsize -= nparts * maxpsize;
while (partcnt < nparts) {
while (totsize <= dstdev.capacity &&
partcnt <= nparts) {
totsize += maxpsize;
partcnt++;
}
/* partcnt == 0 means skip to next volume */
if (partcnt)
partcnt--;
(void) snprintf(tmp_entry, ENTRY_MAX,
" %d", partcnt - lastpartcnt);
if (cat_and_count(&hdrbuf, tmp_entry)) {
progerr(pkg_gt(ERR_TRANSFER));
logerr(pkg_gt(MSG_MEM));
(void) fclose(fp);
ecleanup();
return (NULL);
}
ds_volcnt++;
totsize = 0;
lastpartcnt = partcnt;
}
/* first parts/volume number does not count */
ds_volcnt--;
}
if (cat_and_count(&hdrbuf, "\n")) {
progerr(pkg_gt(ERR_TRANSFER));
logerr(pkg_gt(MSG_MEM));
(void) fclose(fp);
ecleanup();
return (NULL);
}
(void) fclose(fp);
}
if (cat_and_count(&hdrbuf, HDR_SUFFIX) ||
cat_and_count(&hdrbuf, "\n")) {
progerr(pkg_gt(ERR_TRANSFER));
logerr(pkg_gt(MSG_MEM));
(void) fclose(fp);
ecleanup();
return (NULL);
}
return (&hdrbuf);
}
int
esystem(char *cmd, int ifd, int ofd)
{
char *perrfile;
int status = 0;
pid_t pid;
perrfile = tmpnam(NULL);
if (perrfile == NULL) {
progerr(
pkg_gt("unable to create temp error file, errno=%d"),
errno);
return (-1);
}
(void) strlcpy(errfile, perrfile, sizeof (errfile));
/* flush standard i/o before creating new process */
(void) fflush(stderr);
(void) fflush(stdout);
/*
* create new process to execute command in;
* vfork() is being used to avoid duplicating the parents
* memory space - this means that the child process may
* not modify any of the parents memory including the
* standard i/o descriptors - all the child can do is
* adjust interrupts and open files as a prelude to a
* call to exec().
*/
pid = vfork();
if (pid == 0) {
/*
* this is the child process
*/
int i;
/* reset any signals to default */
for (i = 0; i < NSIG; i++) {
(void) sigset(i, SIG_DFL);
}
if (ifd > 0) {
(void) dup2(ifd, STDIN_FILENO);
}
if (ofd >= 0 && ofd != STDOUT_FILENO) {
(void) dup2(ofd, STDOUT_FILENO);
}
i = open(errfile, O_WRONLY|O_CREAT|O_TRUNC, 0666);
if (i >= 0) {
dup2(i, STDERR_FILENO);
}
/* Close all open files except standard i/o */
closefrom(3);
/* execute target executable */
execl("/sbin/sh", "/sbin/sh", "-c", cmd, NULL);
progerr(pkg_gt("exec of <%s> failed, errno=%d"), cmd, errno);
_exit(99);
} else if (pid < 0) {
/* fork failed! */
logerr(pkg_gt("bad vfork(), errno=%d"), errno);
return (-1);
}
/*
* this is the parent process
*/
sighold(SIGINT);
pid = waitpid(pid, &status, 0);
sigrelse(SIGINT);
if (pid < 0) {
return (-1); /* probably interrupted */
}
switch (status & 0177) {
case 0:
case 0177:
status = status >> 8;
/*FALLTHROUGH*/
default:
/* terminated by a signal */
status = status & 0177;
}
if (status == 0) {
ecleanup();
}
return (status);
}
