author: kx <kx@radix.pro> 2023-04-11 01:18:34 +0300
committer: kx <kx@radix.pro> 2023-04-11 01:18:34 +0300
commit: 11c606a6888dc269ef018359469a7276c3ad8f67
parent: 8c55752ed5b29a22fdab9faaa6ff27b7cafa6791
Commit Summary:
Diffstat:
1 file changed, 1064 insertions, 0 deletions
diff --git a/src/pkglog.c b/src/pkglog.c
new file mode 100644
index 0000000..12ab381
--- /dev/null
+++ b/src/pkglog.c
@@ -0,0 +1,1316 @@
+
+/**********************************************************************
+
+ Copyright 2019 Andrey V.Kosteltsev
+
+ Licensed under the Radix.pro License, Version 1.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ https://radix.pro/licenses/LICENSE-1.0-en_US.txt
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+ implied.
+
+ **********************************************************************/
+
+#include <config.h>
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <sys/types.h>
+#include <stdint.h>
+#include <dirent.h>
+#include <sys/stat.h> /* chmod(2) */
+#include <fcntl.h>
+#include <linux/limits.h>
+#include <alloca.h> /* alloca(3) */
+#include <string.h> /* strdup(3) */
+#include <libgen.h> /* basename(3) */
+#include <ctype.h> /* tolower(3) */
+#include <errno.h>
+#include <time.h>
+#include <sys/time.h>
+#include <pwd.h>
+#include <grp.h>
+#include <stdarg.h>
+#include <unistd.h>
+
+#include <sys/resource.h>
+
+#include <signal.h>
+#if !defined SIGCHLD && defined SIGCLD
+# define SIGCHLD SIGCLD
+#endif
+
+#define _GNU_SOURCE
+#include <getopt.h>
+
+#include <msglog.h>
+#include <wrapper.h>
+#include <system.h>
+
+#define PROGRAM_NAME "pkglog"
+
+#include <defs.h>
+
+
+char *program = PROGRAM_NAME;
+char *destination = NULL, *srcdir = NULL, *pkginfo_fname = NULL, *output_fname = NULL;
+int exit_status = EXIT_SUCCESS; /* errors counter */
+char *selfdir = NULL;
+
+int mkgroupdir = 0;
+
+int rm_srcdir_at_exit = 0;
+
+char *pkgname = NULL,
+ *pkgver = NULL,
+ *arch = NULL,
+ *distroname = NULL,
+ *distrover = NULL,
+ *group = NULL,
+ *url = NULL,
+ *license = NULL,
+ *uncompressed_size = NULL,
+ *total_files = NULL;
+
+FILE *pkginfo = NULL;
+FILE *output = NULL;
+
+
+#define FREE_PKGLOG_VARIABLES() \
+ if( pkgname ) { free( pkgname ); } pkgname = NULL; \
+ if( pkgver ) { free( pkgver ); } pkgver = NULL; \
+ if( arch ) { free( arch ); } arch = NULL; \
+ if( distroname ) { free( distroname ); } distroname = NULL; \
+ if( distrover ) { free( distrover ); } distrover = NULL; \
+ if( group ) { free( group ); } group = NULL; \
+ if( url ) { free( url ); } url = NULL; \
+ if( license ) { free( license ); } license = NULL; \
+ if( uncompressed_size ) { free( uncompressed_size ); } uncompressed_size = NULL; \
+ if( total_files ) { free( total_files ); } total_files = NULL
+
+void free_resources()
+{
+ if( selfdir ) { free( selfdir ); selfdir = NULL; }
+ if( srcdir ) { free( srcdir ); srcdir = NULL; }
+ if( destination ) { free( destination ); destination = NULL; }
+ if( pkginfo_fname ) { free( pkginfo_fname ); pkginfo_fname = NULL; }
+ if( output_fname )
+ {
+ if( output ) { (void)fflush( output ); fclose( output ); output = NULL; }
+ free( output_fname ); output_fname = NULL;
+ }
+
+ FREE_PKGLOG_VARIABLES();
+}
+
+void usage()
+{
+ free_resources();
+
+ fprintf( stdout, "\n" );
+ fprintf( stdout, "Usage: %s [options] <dir|pkginfo|package>\n", program );
+ fprintf( stdout, "\n" );
+ fprintf( stdout, "Read information from package's service files and create PKGLOG file\n" );
+ fprintf( stdout, "in the destination directory. <pkginfo> is a full name of '.PKGINFO'\n" );
+ fprintf( stdout, "service file of package. Rest of package's serfice files should be\n" );
+ fprintf( stdout, "present in the directory of '.PKGINFO'. If last argument is <dir>\n" );
+ fprintf( stdout, "then pkglog utility will try to read '.PKGINFO' and rest of service\n" );
+ fprintf( stdout, "files from directory given by <dir> argument.\n" );
+ fprintf( stdout, "\n" );
+ fprintf( stdout, "Options:\n" );
+ fprintf( stdout, " -h,--help Display this information.\n" );
+ fprintf( stdout, " -v,--version Display the version of %s utility.\n", program );
+ fprintf( stdout, " -d,--destination=<DIR> Target directory to save output PKGLOG.\n" );
+ fprintf( stdout, " -m,--mkgroupdir Create group subdirectory in the PKGLOG\n" );
+ fprintf( stdout, " target directory.\n" );
+ fprintf( stdout, "\n" );
+ fprintf( stdout, "Parameter:\n" );
+ fprintf( stdout, " <dir|pkginfo|package> Directory wich contains the package's\n" );
+ fprintf( stdout, " service files or path to .PKGINFO file\n" );
+ fprintf( stdout, " or package tarball.\n" );
+ fprintf( stdout, "\n" );
+
+ exit( EXIT_FAILURE );
+}
+
+void to_lowercase( char *s )
+{
+ char *p = s;
+ while( p && *p ) { int c = *p; *p = tolower( c ); ++p; }
+}
+
+void to_uppercase( char *s )
+{
+ char *p = s;
+ while( p && *p ) { int c = *p; *p = toupper( c ); ++p; }
+}
+
+void version()
+{
+ char *upper = NULL;
+
+ upper = (char *)alloca( strlen( program ) + 1 );
+
+ strcpy( (char *)upper, (const char *)program );
+ to_uppercase( upper );
+
+ fprintf( stdout, "%s (%s) %s\n", program, upper, PROGRAM_VERSION );
+
+ fprintf( stdout, "Copyright (C) 2019 Andrey V.Kosteltsev.\n" );
+ fprintf( stdout, "This is free software. There is NO warranty; not even\n" );
+ fprintf( stdout, "for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n" );
+ fprintf( stdout, "\n" );
+
+ free_resources();
+ exit( EXIT_SUCCESS );
+}
+
+
+static void remove_trailing_slash( char *dir )
+{
+ char *s;
+
+ if( !dir || dir[0] == '\0' ) return;
+
+ s = dir + strlen( dir ) - 1;
+ while( *s == '/' )
+ {
+ *s = '\0'; --s;
+ }
+}
+
+
+static int _mkdir_p( const char *dir, const mode_t mode )
+{
+ char *buf;
+ char *p = NULL;
+ struct stat sb;
+
+ if( !dir ) return -1;
+
+ buf = (char *)alloca( strlen( dir ) + 1 );
+ strcpy( buf, dir );
+
+ remove_trailing_slash( buf );
+
+ /* check if path exists and is a directory */
+ if( stat( buf, &sb ) == 0 )
+ {
+ if( S_ISDIR(sb.st_mode) )
+ {
+ return 0;
+ }
+ }
+
+ /* mkdir -p */
+ for( p = buf + 1; *p; ++p )
+ {
+ if( *p == '/' )
+ {
+ *p = 0;
+ /* test path */
+ if( stat( buf, &sb ) != 0 )
+ {
+ /* path does not exist - create directory */
+ if( mkdir( buf, mode ) < 0 )
+ {
+ return -1;
+ }
+ } else if( !S_ISDIR(sb.st_mode) )
+ {
+ /* not a directory */
+ return -1;
+ }
+ *p = '/';
+ }
+ }
+
+ /* test path */
+ if( stat( buf, &sb ) != 0 )
+ {
+ /* path does not exist - create directory */
+ if( mkdir( buf, mode ) < 0 )
+ {
+ return -1;
+ }
+ } else if( !S_ISDIR(sb.st_mode) )
+ {
+ /* not a directory */
+ return -1;
+ }
+
+ return 0;
+}
+
+
+static void _rm_tmpdir( const char *dirpath )
+{
+ DIR *dir;
+ char *path;
+ size_t len;
+
+ struct stat path_sb, entry_sb;
+ struct dirent *entry;
+
+ if( stat( dirpath, &path_sb ) == -1 )
+ {
+ return; /* stat returns error code; errno is set */
+ }
+
+ if( S_ISDIR(path_sb.st_mode) == 0 )
+ {
+ return; /* dirpath is not a directory */
+ }
+
+ if( (dir = opendir(dirpath) ) == NULL )
+ {
+ return; /* Cannot open direcroty; errno is set */
+ }
+
+ len = strlen( dirpath );
+
+ while( (entry = readdir( dir )) != NULL)
+ {
+
+ /* skip entries '.' and '..' */
+ if( ! strcmp( entry->d_name, "." ) || ! strcmp( entry->d_name, ".." ) ) continue;
+
+ /* determinate a full name of an entry */
+ path = alloca( len + strlen( entry->d_name ) + 2 );
+ strcpy( path, dirpath );
+ strcat( path, "/" );
+ strcat( path, entry->d_name );
+
+ if( stat( path, &entry_sb ) == 0 )
+ {
+ if( S_ISDIR(entry_sb.st_mode) )
+ {
+ /* recursively remove a nested directory */
+ _rm_tmpdir( path );
+ }
+ else
+ {
+ /* remove a file object */
+ (void)unlink( path );
+ }
+ }
+ /* else { stat() returns error code; errno is set; and we have to continue the loop } */
+
+ }
+
+ /* remove the devastated directory and close the object of this directory */
+ (void)rmdir( dirpath );
+
+ closedir( dir );
+}
+
+
+static char *_mk_tmpdir( void )
+{
+ char *buf = NULL, *p, *tmp = "/tmp";
+ size_t len = 0, size = 0;
+
+ (void)umask( S_IWGRP | S_IWOTH ); /* octal 022 */
+
+ /* Get preferred directory for tmp files */
+ if( (p = getenv( "TMP" )) != NULL ) {
+ tmp = p;
+ }
+ else if( (p = getenv( "TEMP" )) != NULL ) {
+ tmp = p;
+ }
+
+ size = strlen( tmp ) + strlen( DISTRO_NAME ) + strlen( program ) + 12;
+
+ buf = (char *)malloc( size );
+ if( !buf ) return NULL;
+
+ len = snprintf( buf, size, (const char *)"%s/%s/%s-%.7u", tmp, DISTRO_NAME, program, getpid() );
+ if( len == 0 || len == size - 1 )
+ {
+ free( buf ); return NULL;
+ }
+
+ _rm_tmpdir( (const char *)&buf[0] );
+
+ if( _mkdir_p( buf, S_IRWXU | S_IRWXG | S_IRWXO ) == 0 )
+ {
+ return buf;
+ }
+
+ free( buf ); return NULL;
+}
+
+
+void fatal_error_actions( void )
+{
+ logmsg( errlog, MSG_NOTICE, "Free resources on FATAL error..." );
+ if( rm_srcdir_at_exit ) _rm_tmpdir( (const char *)srcdir );
+ if( output_fname )
+ {
+ if( output ) { (void)fflush( output ); fclose( output ); output = NULL; }
+ (void)unlink( output_fname );
+ free( output_fname ); output_fname = NULL;
+ }
+ free_resources();
+}
+
+void sigint( int signum )
+{
+ (void)signum;
+
+ if( rm_srcdir_at_exit ) _rm_tmpdir( (const char *)srcdir );
+ if( output_fname )
+ {
+ if( output ) { (void)fflush( output ); fclose( output ); output = NULL; }
+ (void)unlink( output_fname );
+ free( output_fname ); output_fname = NULL;
+ }
+ free_resources();
+}
+
+static void set_signal_handlers()
+{
+ struct sigaction sa;
+ sigset_t set;
+
+ memset( &sa, 0, sizeof( sa ) );
+ sa.sa_handler = sigint; /* TERM, INT */
+ sa.sa_flags = SA_RESTART;
+ sigemptyset( &set );
+ sigaddset( &set, SIGTERM );
+ sigaddset( &set, SIGINT );
+ sa.sa_mask = set;
+ sigaction( SIGTERM, &sa, NULL );
+ sigaction( SIGINT, &sa, NULL );
+
+ memset( &sa, 0, sizeof( sa ) ); /* ignore SIGPIPE */
+ sa.sa_handler = SIG_IGN;
+ sa.sa_flags = 0;
+ sigaction( SIGPIPE, &sa, NULL );
+
+ /* System V fork+wait does not work if SIGCHLD is ignored */
+ signal( SIGCHLD, SIG_DFL );
+}
+
+enum _pkginfo_type
+{
+ PKGINFO_TEXT = 0,
+ PKGINFO_GZ,
+ PKGINFO_BZ2,
+ PKGINFO_XZ,
+ PKGINFO_TAR,
+
+ PKGINFO_UNKNOWN
+};
+
+static enum _pkginfo_type pkginfo_type = PKGINFO_UNKNOWN;
+static char uncompress[2] = { 0, 0 };
+
+
+static enum _pkginfo_type check_pkginfo_file( const char *fname )
+{
+ struct stat st;
+ size_t pkginfo_size = 0;
+ unsigned char buf[8];
+ int rc, fd;
+
+ /* SIGNATURES: https://www.garykessler.net/library/file_sigs.html */
+
+ uncompress[0] = '\0';
+
+ if( stat( fname, &st ) == -1 )
+ {
+ FATAL_ERROR( "Cannot access %s file: %s", basename( (char *)fname ), strerror( errno ) );
+ }
+
+ pkginfo_size = st.st_size;
+
+ if( (fd = open( fname, O_RDONLY )) == -1 )
+ {
+ FATAL_ERROR( "Cannot open %s file: %s", basename( (char *)fname ), strerror( errno ) );
+ }
+
+ rc = (int)read( fd, (void *)&buf[0], 7 );
+ if( rc != 7 )
+ {
+ FATAL_ERROR( "Unknown type of input file %s", basename( (char *)fname ) );
+ }
+ buf[7] = '\0';
+
+ /* TEXT */
+ if( !strncmp( (const char *)&buf[0], "pkgname", 7 ) )
+ {
+ close( fd ); return PKGINFO_TEXT;
+ }
+
+ /* GZ */
+ if( buf[0] == 0x1F && buf[1] == 0x8B && buf[2] == 0x08 )
+ {
+ uncompress[0] = 'x';
+ close( fd ); return PKGINFO_GZ;
+ }
+
+ /* BZ2 */
+ if( buf[0] == 0x42 && buf[1] == 0x5A && buf[2] == 0x68 )
+ {
+ uncompress[0] = 'j';
+ close( fd ); return PKGINFO_BZ2;
+ }
+
+ /* XZ */
+ if( buf[0] == 0xFD && buf[1] == 0x37 && buf[2] == 0x7A &&
+ buf[3] == 0x58 && buf[4] == 0x5A && buf[5] == 0x00 )
+ {
+ uncompress[0] = 'J';
+ close( fd ); return PKGINFO_XZ;
+ }
+
+ if( pkginfo_size > 262 )
+ {
+ if( lseek( fd, 257, SEEK_SET ) == -1 )
+ {
+ FATAL_ERROR( "Cannot check signature of %s file: %s", basename( (char *)fname ), strerror( errno ) );
+ }
+ rc = (int)read( fd, &buf[0], 5 );
+ if( rc != 5 )
+ {
+ FATAL_ERROR( "Cannot read signature of %s file", basename( (char *)fname ) );
+ }
+ /* TAR */
+ if( buf[0] == 0x75 && buf[1] == 0x73 && buf[2] == 0x74 && buf[3] == 0x61 && buf[4] == 0x72 )
+ {
+ close( fd ); return PKGINFO_TAR;
+ }
+ }
+
+ close( fd ); return PKGINFO_UNKNOWN;
+}
+
+
+void get_args( int argc, char *argv[] )
+{
+ const char* short_options = "hvmd:";
+
+ const struct option long_options[] =
+ {
+ { "help", no_argument, NULL, 'h' },
+ { "version", no_argument, NULL, 'v' },
+ { "destination", required_argument, NULL, 'd' },
+ { "mkgroupdir", no_argument, NULL, 'm' },
+ { NULL, 0, NULL, 0 }
+ };
+
+ int ret;
+ int option_index = 0;
+
+ while( (ret = getopt_long( argc, argv, short_options, long_options, &option_index )) != -1 )
+ {
+ switch( ret )
+ {
+ case 'h':
+ {
+ usage();
+ break;
+ }
+ case 'v':
+ {
+ version();
+ break;
+ }
+
+ case 'd':
+ {
+ if( optarg != NULL )
+ {
+ destination = xstrdup( (const char *)optarg );
+ remove_trailing_slash( destination );
+ }
+ else
+ /* option is present but without value */
+ usage();
+ break;
+ }
+ case 'm':
+ {
+ mkgroupdir = 1;
+ break;
+ }
+
+ case '?': default:
+ {
+ usage();
+ break;
+ }
+ }
+ }
+
+ if( destination == NULL )
+ {
+ char cwd[PATH_MAX];
+ if( getcwd( cwd, sizeof(cwd) ) != NULL )
+ destination = xstrdup( (const char *)cwd );
+ else
+ destination = xstrdup( "." );
+ }
+
+ /* last command line argument is the PKGLOG file */
+ if( optind < argc )
+ {
+ struct stat st;
+ char *buf = NULL;
+
+ buf = (char *)malloc( strlen( (const char *)argv[optind] ) + 10 );
+ if( !buf )
+ {
+ FATAL_ERROR( "Cannot allocate memory" );
+ }
+
+ (void)strcpy( buf, (const char *)argv[optind++] );
+ remove_trailing_slash( (char *)&buf[0] );
+
+ if( stat( (const char *)&buf[0], &st ) == -1 )
+ {
+ FATAL_ERROR( "Cannot access '%s' file: %s", basename( buf ), strerror( errno ) );
+ }
+
+ if( S_ISDIR(st.st_mode) )
+ {
+ /* Add .PKGINFO to the input dir name: */
+ (void)strcat( buf, "/.PKGINFO" );
+ }
+
+ pkginfo_fname = xstrdup( (const char *)&buf[0] );
+ if( pkginfo_fname == NULL )
+ {
+ usage();
+ }
+
+ free( buf );
+
+ pkginfo_type = check_pkginfo_file( (const char *)pkginfo_fname );
+ if( pkginfo_type == PKGINFO_UNKNOWN )
+ {
+ ERROR( "%s: Unknown input file format", basename( pkginfo_fname ) );
+ usage();
+ }
+ }
+ else
+ {
+ usage();
+ }
+}
+
+
+/*
+ Especialy for pkginfo lines.
+ Remove leading spaces and take non-space characters only:
+ */
+static char *skip_spaces( char *s )
+{
+ char *q, *p = (char *)0;
+
+ if( !s || *s == '\0' ) return p;
+
+ p = s;
+
+ while( (*p == ' ' || *p == '\t') && *p != '\0' ) { ++p; } q = p;
+ while( *q != ' ' && *q != '\t' && *q != '\0' ) { ++q; } *q = '\0';
+
+ if( *p == '\0' ) return (char *)0;
+
+ return( xstrdup( (const char *)p ) );
+}
+
+/*
+ remove spaces at end of line:
+ */
+static void skip_eol_spaces( char *s )
+{
+ char *p = (char *)0;
+
+ if( !s || *s == '\0' ) return;
+
+ p = s + strlen( s ) - 1;
+ while( isspace( *p ) ) { *p-- = '\0'; }
+}
+
+
+void write_pkginfo( void )
+{
+ char *ln = NULL;
+ char *line = NULL;
+
+ if( pkginfo_fname != NULL )
+ {
+ pkginfo = fopen( (const char *)pkginfo_fname, "r" );
+ if( !pkginfo )
+ {
+ FATAL_ERROR( "Cannot open %s file", pkginfo_fname );
+ }
+ }
+
+ line = (char *)malloc( (size_t)PATH_MAX );
+ if( !line )
+ {
+ FATAL_ERROR( "Cannot allocate memory" );
+ }
+
+ while( (ln = fgets( line, PATH_MAX, pkginfo )) )
+ {
+ char *match = NULL;
+
+ ln[strlen(ln) - 1] = '\0'; /* replace new-line symbol */
+ skip_eol_spaces( ln ); /* remove spaces at end-of-line */
+
+ if( (match = strstr( ln, "pkgname" )) && match == ln ) {
+ char *p = index( match, '=' ) + 1;
+ if( p != NULL ) pkgname = skip_spaces( p );
+ }
+ if( (match = strstr( ln, "pkgver" )) && match == ln ) {
+ char *p = index( match, '=' ) + 1;
+ if( p != NULL ) pkgver = skip_spaces( p );
+ }
+ if( (match = strstr( ln, "arch" )) && match == ln ) {
+ char *p = index( match, '=' ) + 1;
+ if( p != NULL ) arch = skip_spaces( p );
+ }
+ if( (match = strstr( ln, "distroname" )) && match == ln ) {
+ char *p = index( match, '=' ) + 1;
+ if( p != NULL ) distroname = skip_spaces( p );
+ }
+ if( (match = strstr( ln, "distrover" )) && match == ln ) {
+ char *p = index( match, '=' ) + 1;
+ if( p != NULL ) distrover = skip_spaces( p );
+ }
+
+
+ if( (match = strstr( ln, "group" )) && match == ln ) {
+ char *p = index( match, '=' ) + 1;
+ if( p != NULL ) group = skip_spaces( p );
+ }
+ /* variable short_description="..." is not stored in the PKGLOG file */
+ if( (match = strstr( ln, "url" )) && match == ln ) {
+ char *p = index( match, '=' ) + 1;
+ if( p != NULL ) url = skip_spaces( p );
+ }
+ if( (match = strstr( ln, "license" )) && match == ln ) {
+ char *p = index( match, '=' ) + 1;
+ if( p != NULL ) license = skip_spaces( p );
+ }
+ if( (match = strstr( ln, "uncompressed_size" )) && match == ln ) {
+ char *p = index( match, '=' ) + 1;
+ if( p != NULL ) uncompressed_size = skip_spaces( p );
+ }
+ if( (match = strstr( ln, "total_files" )) && match == ln ) {
+ char *p = index( match, '=' ) + 1;
+ if( p != NULL ) total_files = skip_spaces( p );
+ }
+ }
+
+ free( line );
+
+ if( pkgname && pkgver && arch && distroname && distrover )
+ {
+ int len;
+ char *buf = NULL;
+
+ buf = (char *)malloc( (size_t)PATH_MAX );
+ if( !buf )
+ {
+ FATAL_ERROR( "Cannot allocate memory" );
+ }
+
+ if( mkgroupdir && group )
+ {
+ len = snprintf( buf, PATH_MAX, "%s/%s",
+ destination, group );
+ if( len == 0 || len == PATH_MAX - 1 )
+ {
+ FATAL_ERROR( "Cannot create output file" );
+ }
+
+ if( _mkdir_p( buf, S_IRWXU | S_IRWXG | S_IRWXO ) != 0 )
+ {
+ FATAL_ERROR( "Cannot create output directory" );
+ }
+
+ len = snprintf( buf, PATH_MAX, "%s/%s/%s-%s-%s-%s-%s",
+ destination, group, pkgname, pkgver, arch, distroname, distrover );
+ if( len == 0 || len == PATH_MAX - 1 )
+ {
+ FATAL_ERROR( "Cannot create output file" );
+ }
+ }
+ else
+ {
+ len = snprintf( buf, PATH_MAX, "%s/%s-%s-%s-%s-%s",
+ destination, pkgname, pkgver, arch, distroname, distrover );
+ if( len == 0 || len == PATH_MAX - 1 )
+ {
+ FATAL_ERROR( "Cannot create output file" );
+ }
+ }
+ output_fname = xstrdup( (const char *)&buf[0] );
+ if( output_fname )
+ {
+ output = fopen( (const char *)output_fname, "w" );
+ if( !output )
+ {
+ FATAL_ERROR( "Cannot create %s file", output_fname );
+ }
+ }
+
+ free( buf );
+
+ fprintf( output, "PACKAGE NAME: %s\n", pkgname );
+ fprintf( output, "PACKAGE VERSION: %s\n", pkgver );
+ fprintf( output, "ARCH: %s\n", arch );
+ fprintf( output, "DISTRO: %s\n", distroname );
+ fprintf( output, "DISTRO VERSION: %s\n", distrover );
+ }
+ else
+ {
+ FATAL_ERROR( "Invalid input .PKGINFO file" );
+ }
+
+ if( group )
+ fprintf( output, "GROUP: %s\n", group );
+ if( url )
+ fprintf( output, "URL: %s\n", url );
+ if( license )
+ fprintf( output, "LICENSE: %s\n", license );
+ if( uncompressed_size )
+ fprintf( output, "UNCOMPRESSED SIZE: %s\n", uncompressed_size );
+ if( total_files )
+ fprintf( output, "TOTAL FILES: %s\n", total_files );
+
+ /* reference counter of not installed package is always zero */
+ fprintf( output, "REFERENCE COUNTER: 0\n" );
+}
+
+
+void write_requires( void )
+{
+ struct stat sb;
+ char *buf = NULL;
+
+ if( output == NULL && output_fname == NULL )
+ {
+ FATAL_ERROR( "Unable to access output file" );
+ }
+
+ buf = (char *)malloc( (size_t)PATH_MAX );
+ if( !buf )
+ {
+ FATAL_ERROR( "Cannot allocate memory" );
+ }
+
+ fprintf( output, "REQUIRES:\n" );
+
+ bzero( (void *)buf, PATH_MAX );
+ (void)sprintf( (char *)&buf[0], "%s/.REQUIRES", srcdir );
+
+ /* check if path exists and is a regular file */
+ if( stat( (const char *)&buf[0], &sb ) == 0 && S_ISREG(sb.st_mode) )
+ {
+ char *ln = NULL;
+ char *line = NULL;
+
+ FILE *input;
+
+ input = fopen( (const char *)&buf[0], "r" );
+ if( !input )
+ {
+ FATAL_ERROR( "Unable to access %s file", (char *)&buf[0] );
+ }
+
+ line = (char *)malloc( (size_t)PATH_MAX );
+ if( !line )
+ {
+ FATAL_ERROR( "Cannot allocate memory" );
+ }
+
+ /* cat .REQUIRES >> PKGLOG */
+ while( (ln = fgets( line, PATH_MAX, input )) )
+ {
+ ln[strlen(ln) - 1] = '\0'; /* replace new-line symbol */
+ skip_eol_spaces( ln ); /* remove spaces at end-of-line */
+
+ /* print non-empty lines */
+ if( *ln )
+ {
+ fprintf( output, "%s\n", ln );
+ }
+ }
+ free( line );
+ }
+ free( buf );
+}
+
+
+void write_description( void )
+{
+ struct stat sb;
+ char *buf = NULL;
+
+ if( output == NULL && output_fname == NULL )
+ {
+ FATAL_ERROR( "Unable to access output file" );
+ }
+
+ buf = (char *)malloc( (size_t)PATH_MAX );
+ if( !buf )
+ {
+ FATAL_ERROR( "Cannot allocate memory" );
+ }
+
+ fprintf( output, "PACKAGE DESCRIPTION:\n" );
+
+ bzero( (void *)buf, PATH_MAX );
+ (void)sprintf( (char *)&buf[0], "%s/.DESCRIPTION", srcdir );
+
+ /* check if path exists and is a regular file */
+ if( stat( (const char *)&buf[0], &sb ) == 0 && S_ISREG(sb.st_mode) )
+ {
+ char *ln = NULL;
+ char *line = NULL;
+ char *pattern = NULL;
+ int n = 0;
+
+ FILE *input;
+
+ input = fopen( (const char *)&buf[0], "r" );
+ if( !input )
+ {
+ FATAL_ERROR( "Unable to access %s file", (char *)&buf[0] );
+ }
+
+ line = (char *)malloc( (size_t)PATH_MAX );
+ if( !line ) { FATAL_ERROR( "Cannot allocate memory" ); }
+
+ pattern = (char *)malloc( (size_t)strlen( pkgname ) + 2 );
+ if( !pattern ) { FATAL_ERROR( "Cannot allocate memory" ); }
+
+ (void)sprintf( pattern, "%s:", pkgname );
+
+ /* cat .DESCRIPTION >> PKGLOG */
+ while( (ln = fgets( line, PATH_MAX, input )) )
+ {
+ char *match = NULL;
+
+ ln[strlen(ln) - 1] = '\0'; /* replace new-line symbol */
+ skip_eol_spaces( ln ); /* remove spaces at end-of-line */
+
+ /*
+ skip non-significant spaces at beginning of line
+ and print lines started with 'pkgname:'
+ */
+ if( (match = strstr( ln, pattern )) && n < DESCRIPTION_NUMBER_OF_LINES )
+ {
+ int mlen = strlen( match ), plen = strlen( pattern );
+ int length = ( mlen > plen ) ? (mlen - plen - 1) : 0 ;
+
+ if( length > DESCRIPTION_LENGTH_OF_LINE )
+ {
+ /* WARNING( "Package DESCRIPTION contains lines with length greater than %d characters", DESCRIPTION_LENGTH_OF_LINE ); */
+ match[plen + 1 + DESCRIPTION_LENGTH_OF_LINE] = '\0'; /* truncating description line */
+ skip_eol_spaces( match ); /* remove spaces at end-of-line */
+ }
+ fprintf( output, "%s\n", match );
+ ++n;
+ }
+ }
+
+ if( n < DESCRIPTION_NUMBER_OF_LINES )
+ {
+ /* WARNING( "Package DESCRIPTION contains less than %d lines", DESCRIPTION_NUMBER_OF_LINES ); */
+ while( n < DESCRIPTION_NUMBER_OF_LINES )
+ {
+ fprintf( output, "%s\n", pattern );
+ ++n;
+ }
+ }
+
+ free( pattern );
+ free( line );
+ }
+
+ free( buf );
+}
+
+
+void write_restore_links( void )
+{
+ struct stat sb;
+ char *buf = NULL;
+
+ if( output == NULL && output_fname == NULL )
+ {
+ FATAL_ERROR( "Unable to access output file" );
+ }
+
+ buf = (char *)malloc( (size_t)PATH_MAX );
+ if( !buf )
+ {
+ FATAL_ERROR( "Cannot allocate memory" );
+ }
+
+ fprintf( output, "RESTORE LINKS:\n" );
+
+ bzero( (void *)buf, PATH_MAX );
+ (void)sprintf( (char *)&buf[0], "%s/.RESTORELINKS", srcdir );
+
+ /* check if path exists and is a regular file */
+ if( stat( (const char *)&buf[0], &sb ) == 0 && S_ISREG(sb.st_mode) )
+ {
+ char *ln = NULL;
+ char *line = NULL;
+
+ FILE *input;
+
+ input = fopen( (const char *)&buf[0], "r" );
+ if( !input )
+ {
+ FATAL_ERROR( "Unable to access %s file", (char *)&buf[0] );
+ }
+
+ line = (char *)malloc( (size_t)PATH_MAX );
+ if( !line )
+ {
+ FATAL_ERROR( "Cannot allocate memory" );
+ }
+
+ /* cat .REQUIRES >> PKGLOG */
+ while( (ln = fgets( line, PATH_MAX, input )) )
+ {
+ ln[strlen(ln) - 1] = '\0'; /* replace new-line symbol */
+ skip_eol_spaces( ln ); /* remove spaces at end-of-line */
+
+ /* print non-empty lines */
+ if( *ln )
+ {
+ fprintf( output, "%s\n", ln );
+ }
+ }
+
+ free( line );
+ }
+
+ free( buf );
+}
+
+
+void write_install_script( void )
+{
+ struct stat sb;
+ char *buf = NULL;
+
+ if( output == NULL && output_fname == NULL )
+ {
+ FATAL_ERROR( "Unable to access output file" );
+ }
+
+ buf = (char *)malloc( (size_t)PATH_MAX );
+ if( !buf )
+ {
+ FATAL_ERROR( "Cannot allocate memory" );
+ }
+
+ fprintf( output, "INSTALL SCRIPT:\n" );
+
+ bzero( (void *)buf, PATH_MAX );
+ (void)sprintf( (char *)&buf[0], "%s/.INSTALL", srcdir );
+
+ /* check if path exists and is a regular file */
+ if( stat( (const char *)&buf[0], &sb ) == 0 && S_ISREG(sb.st_mode) )
+ {
+ char *ln = NULL;
+ char *line = NULL;
+
+ FILE *input;
+
+ input = fopen( (const char *)&buf[0], "r" );
+ if( !input )
+ {
+ FATAL_ERROR( "Unable to access %s file", (char *)&buf[0] );
+ }
+
+ line = (char *)malloc( (size_t)PATH_MAX );
+ if( !line )
+ {
+ FATAL_ERROR( "Cannot allocate memory" );
+ }
+
+ /* cat .REQUIRES >> PKGLOG */
+ while( (ln = fgets( line, PATH_MAX, input )) )
+ {
+ ln[strlen(ln) - 1] = '\0'; /* replace new-line symbol */
+ skip_eol_spaces( ln ); /* remove spaces at end-of-line */
+
+ /* print all lines */
+ fprintf( output, "%s\n", ln );
+ }
+ free( line );
+ }
+ else
+ {
+ FATAL_ERROR( "Package doesn't contains the INSTALL script" );
+ }
+
+ free( buf );
+}
+
+
+void write_file_list( void )
+{
+ struct stat sb;
+ char *buf = NULL;
+
+ if( output == NULL && output_fname == NULL )
+ {
+ FATAL_ERROR( "Unable to access output file" );
+ }
+
+ buf = (char *)malloc( (size_t)PATH_MAX );
+ if( !buf )
+ {
+ FATAL_ERROR( "Cannot allocate memory" );
+ }
+
+ fprintf( output, "FILE LIST:\n" );
+
+ bzero( (void *)buf, PATH_MAX );
+ (void)sprintf( (char *)&buf[0], "%s/.FILELIST", srcdir );
+
+ /* check if path exists and is a regular file */
+ if( stat( (const char *)&buf[0], &sb ) == 0 && S_ISREG(sb.st_mode) )
+ {
+ char *ln;
+ char *line = NULL;
+
+ FILE *input;
+
+ input = fopen( (const char *)&buf[0], "r" );
+ if( !input )
+ {
+ FATAL_ERROR( "Unable to access %s file", (char *)&buf[0] );
+ }
+
+ line = (char *)malloc( (size_t)PATH_MAX );
+ if( !line )
+ {
+ FATAL_ERROR( "Cannot allocate memory" );
+ }
+
+ /* cat .REQUIRES >> PKGLOG */
+ while( (ln = fgets( line, PATH_MAX, input )) )
+ {
+ ln[strlen(ln) - 1] = '\0'; /* replace new-line symbol */
+ skip_eol_spaces( ln ); /* remove spaces at end-of-line */
+
+ /* print non-empty lines */
+ if( *ln )
+ {
+ fprintf( output, "%s\n", ln );
+ }
+ }
+
+ free( line );
+ }
+ else
+ {
+ FATAL_ERROR( "Package doesn't contains the FILE list" );
+ }
+
+ free( buf );
+}
+
+
+/*********************************************
+ Get directory where this program is placed:
+ */
+char *get_selfdir( void )
+{
+ char *buf = NULL;
+ ssize_t len;
+
+ buf = (char *)malloc( (size_t)PATH_MAX );
+ if( !buf )
+ {
+ FATAL_ERROR( "Cannot allocate memory" );
+ }
+
+ bzero( (void *)buf, PATH_MAX );
+ len = readlink( "/proc/self/exe", buf, (size_t)PATH_MAX );
+ if( len > 0 && len < PATH_MAX )
+ {
+ char *p = xstrdup( (const char *)dirname( buf ) );
+ free( buf );
+ return p;
+ }
+ FATAL_ERROR( "Cannot determine self directory. Please mount /proc filesystem" );
+}
+
+void set_stack_size( void )
+{
+ const rlim_t stack_size = 16 * 1024 * 1024; /* min stack size = 16 MB */
+ struct rlimit rl;
+ int ret;
+
+ ret = getrlimit( RLIMIT_STACK, &rl );
+ if( ret == 0 )
+ {
+ if( rl.rlim_cur < stack_size )
+ {
+ rl.rlim_cur = stack_size;
+ ret = setrlimit( RLIMIT_STACK, &rl );
+ if( ret != 0 )
+ {
+ fprintf(stderr, "setrlimit returned result = %d\n", ret);
+ FATAL_ERROR( "Cannot set stack size" );
+ }
+ }
+ }
+}
+
+
+int main( int argc, char *argv[] )
+{
+ gid_t gid;
+
+ set_signal_handlers();
+ gid = getgid();
+ setgroups( 1, &gid );
+
+ fatal_error_hook = fatal_error_actions;
+
+ selfdir = get_selfdir();
+
+ errlog = stderr;
+
+ program = basename( argv[0] );
+ get_args( argc, argv );
+
+ /* set_stack_size(); */
+
+ if( pkginfo_type != PKGINFO_TEXT )
+ {
+ /* Create tmpdir */
+ srcdir = _mk_tmpdir();
+ if( !srcdir )
+ {
+ FATAL_ERROR( "Cannot create temporary dir" );
+ }
+ rm_srcdir_at_exit = 1;
+
+ /* Unpack SERVICE files */
+ {
+ pid_t p = (pid_t) -1;
+ int rc;
+
+ int len = 0;
+ char *cmd = NULL, *errmsg = NULL, *wmsg = NULL;
+
+ cmd = (char *)malloc( (size_t)PATH_MAX );
+ if( !cmd ) { FATAL_ERROR( "Cannot allocate memory" ); }
+
+ errmsg = (char *)malloc( (size_t)PATH_MAX );
+ if( !errmsg ) { FATAL_ERROR( "Cannot allocate memory" ); }
+
+ wmsg = (char *)malloc( (size_t)PATH_MAX );
+ if( !wmsg ) { FATAL_ERROR( "Cannot allocate memory" ); }
+
+ bzero( (void *)cmd, PATH_MAX );
+ bzero( (void *)errmsg, PATH_MAX );
+ bzero( (void *)wmsg, PATH_MAX );
+
+ (void)sprintf( &errmsg[0], "Cannot get SERVICE files from %s file", basename( pkginfo_fname ) );
+
+ len = snprintf( &cmd[0], PATH_MAX, "tar -C %s -x%sf %s %s > /dev/null 2>&1",
+ srcdir, uncompress, pkginfo_fname,
+ ".PKGINFO .REQUIRES .DESCRIPTION .RESTORELINKS .INSTALL .FILELIST" );
+ if( len == 0 || len == PATH_MAX - 1 )
+ {
+ FATAL_ERROR( errmsg );
+ }
+ p = sys_exec_command( cmd );
+ rc = sys_wait_command( p, (char *)&wmsg[0], PATH_MAX );
+ if( rc != 0 )
+ {
+ if( ! DO_NOT_WARN_ABOUT_SERVICE_FILES )
+ {
+ /*****************************************
+ if( rc > 0 ) { return TAR exit status }
+ else { return EXIT_FAILURE }
+ */
+ if( rc > 0 ) exit_status = rc - 1; /* ERROR() will add one */
+ ERROR( errmsg );
+ if( fatal_error_hook) fatal_error_hook();
+ exit( exit_status );
+ }
+ }
+
+ if( cmd ) free( cmd );
+ if( errmsg ) free( errmsg );
+ if( wmsg ) free( wmsg );
+ }
+
+ /* Change input pkginfo file name and type */
+ if( pkginfo_fname )
+ {
+ char *buf = NULL;
+
+ buf = (char *)malloc( strlen( pkginfo_fname ) + 10 );
+ if( !buf )
+ {
+ FATAL_ERROR( "Cannot allocate memory" );
+ }
+
+ (void)sprintf( &buf[0], "%s/.PKGINFO", srcdir );
+
+ free( pkginfo_fname ); pkginfo_fname = NULL;
+
+ pkginfo_fname = xstrdup( (const char *)buf );
+ free( buf );
+ pkginfo_type = PKGINFO_TEXT;
+ }
+
+ }
+ else /* TEXT: */
+ {
+ char *buf = NULL;
+
+ buf = (char *)malloc( (size_t)strlen( pkginfo_fname ) + 1 );
+ if( !buf )
+ {
+ FATAL_ERROR( "Cannot allocate memory" );
+ }
+
+ /* function dirname() spoils the source contents: */
+ (void)sprintf( buf, "%s", pkginfo_fname );
+
+ srcdir = xstrdup( (const char *)dirname( (char *)&buf[0] ) );
+ free( buf );
+ rm_srcdir_at_exit = 0;
+ }
+
+
+ write_pkginfo();
+ write_requires();
+ write_description();
+ write_restore_links();
+ write_install_script();
+ write_file_list();
+
+
+ if( rm_srcdir_at_exit ) _rm_tmpdir( (const char *)srcdir );
+ free_resources();
+
+ exit( exit_status );
+}