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/*
* Copyright (c) 2004-2010 The Trustees of Indiana University.
* All rights reserved.
* Copyright (c) 2010 Oracle and/or its affiliates. All rights reserved.
*
* Copyright (c) 2014 Cisco Systems, Inc. All rights reserved.
* Copyright (c) 2015 Research Organization for Information Science
* and Technology (RIST). All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "opal_config.h"
#include <string.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <sys/stat.h>
#if HAVE_UNISTD_H
#include <unistd.h>
#endif /* HAVE_UNISTD_H */
#include "opal/util/opal_environ.h"
#include "opal/util/output.h"
#include "opal/util/argv.h"
#include "opal/util/opal_environ.h"
#include "opal/constants.h"
#include "opal/util/basename.h"
#include "opal/mca/compress/compress.h"
#include "opal/mca/compress/base/base.h"
#include "opal/runtime/opal_cr.h"
#include "compress_gzip.h"
static bool is_directory(char *fname );
int opal_compress_gzip_module_init(void)
{
return OPAL_SUCCESS;
}
int opal_compress_gzip_module_finalize(void)
{
return OPAL_SUCCESS;
}
int opal_compress_gzip_compress(char * fname, char **cname, char **postfix)
{
pid_t child_pid = 0;
int status = 0;
opal_output_verbose(10, mca_compress_gzip_component.super.output_handle,
"compress:gzip: compress(%s)",
fname);
opal_compress_gzip_compress_nb(fname, cname, postfix, &child_pid);
waitpid(child_pid, &status, 0);
if( WIFEXITED(status) ) {
return OPAL_SUCCESS;
} else {
return OPAL_ERROR;
}
}
int opal_compress_gzip_compress_nb(char * fname, char **cname, char **postfix, pid_t *child_pid)
{
char **argv = NULL;
char * base_fname = NULL;
char * dir_fname = NULL;
int status;
bool is_dir;
is_dir = is_directory(fname);
*child_pid = fork();
if( *child_pid == 0 ) { /* Child */
char * cmd = NULL;
dir_fname = opal_dirname(fname);
base_fname = opal_basename(fname);
chdir(dir_fname);
if( is_dir ) {
#if 0
opal_compress_base_tar_create(&base_fname);
asprintf(cname, "%s.gz", base_fname);
asprintf(&cmd, "gzip %s", base_fname);
#else
asprintf(cname, "%s.tar.gz", base_fname);
asprintf(&cmd, "tar -zcf %s %s", *cname, base_fname);
#endif
} else {
asprintf(cname, "%s.gz", base_fname);
asprintf(&cmd, "gzip %s", base_fname);
}
opal_output_verbose(10, mca_compress_gzip_component.super.output_handle,
"compress:gzip: compress_nb(%s -> [%s])",
fname, *cname);
opal_output_verbose(10, mca_compress_gzip_component.super.output_handle,
"compress:gzip: compress_nb() command [%s]",
cmd);
argv = opal_argv_split(cmd, ' ');
status = execvp(argv[0], argv);
opal_output(0, "compress:gzip: compress_nb: Failed to exec child [%s] status = %d\n", cmd, status);
exit(OPAL_ERROR);
}
else if( *child_pid > 0 ) {
if( is_dir ) {
*postfix = strdup(".tar.gz");
} else {
*postfix = strdup(".gz");
}
asprintf(cname, "%s%s", fname, *postfix);
}
else {
return OPAL_ERROR;
}
return OPAL_SUCCESS;
}
int opal_compress_gzip_decompress(char * cname, char **fname)
{
pid_t child_pid = 0;
int status = 0;
opal_output_verbose(10, mca_compress_gzip_component.super.output_handle,
"compress:gzip: decompress(%s)",
cname);
opal_compress_gzip_decompress_nb(cname, fname, &child_pid);
waitpid(child_pid, &status, 0);
if( WIFEXITED(status) ) {
return OPAL_SUCCESS;
} else {
return OPAL_ERROR;
}
}
int opal_compress_gzip_decompress_nb(char * cname, char **fname, pid_t *child_pid)
{
char **argv = NULL;
char * dir_cname = NULL;
pid_t loc_pid = 0;
int status;
bool is_tar = false;
if( 0 == strncmp(&(cname[strlen(cname)-7]), ".tar.gz", strlen(".tar.gz")) ) {
is_tar = true;
}
*fname = strdup(cname);
if( is_tar ) {
/* Strip off '.tar.gz' */
(*fname)[strlen(cname)-7] = '\0';
} else {
/* Strip off '.gz' */
(*fname)[strlen(cname)-3] = '\0';
}
opal_output_verbose(10, mca_compress_gzip_component.super.output_handle,
"compress:gzip: decompress_nb(%s -> [%s])",
cname, *fname);
*child_pid = fork();
if( *child_pid == 0 ) { /* Child */
char * cmd;
dir_cname = opal_dirname(cname);
chdir(dir_cname);
/* Fork(gunzip) */
loc_pid = fork();
if( loc_pid == 0 ) { /* Child */
asprintf(&cmd, "gunzip %s", cname);
opal_output_verbose(10, mca_compress_gzip_component.super.output_handle,
"compress:gzip: decompress_nb() command [%s]",
cmd);
argv = opal_argv_split(cmd, ' ');
status = execvp(argv[0], argv);
opal_output(0, "compress:gzip: decompress_nb: Failed to exec child [%s] status = %d\n", cmd, status);
exit(OPAL_ERROR);
}
else if( loc_pid > 0 ) { /* Parent */
waitpid(loc_pid, &status, 0);
if( !WIFEXITED(status) ) {
opal_output(0, "compress:gzip: decompress_nb: Failed to bunzip the file [%s] status = %d\n", cname, status);
exit(OPAL_ERROR);
}
}
else {
exit(OPAL_ERROR);
}
/* tar_decompress */
if( is_tar ) {
/* Strip off '.gz' leaving just '.tar' */
cname[strlen(cname)-3] = '\0';
opal_compress_base_tar_extract(&cname);
}
/* Once this child is done, then directly exit */
exit(OPAL_SUCCESS);
}
else if( *child_pid > 0 ) {
;
}
else {
return OPAL_ERROR;
}
return OPAL_SUCCESS;
}
static bool is_directory(char *fname ) {
struct stat file_status;
int rc;
if(0 != (rc = stat(fname, &file_status) ) ) {
return false;
}
if(S_ISDIR(file_status.st_mode)) {
return true;
}
return false;
}
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