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, 1278 insertions, 0 deletions
diff --git a/src/pkginfo.c b/src/pkginfo.c
new file mode 100644
index 0000000..2e93a7c
--- /dev/null
+++ b/src/pkginfo.c
@@ -0,0 +1,1573 @@
+
+/**********************************************************************
+
+ 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 <strings.h> /* index(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 "pkginfo"
+
+#include <defs.h>
+
+
+char *program = PROGRAM_NAME;
+char *destination = NULL, *operation = NULL, *pkglog_fname = NULL;
+int exit_status = EXIT_SUCCESS; /* errors counter */
+char *selfdir = NULL;
+
+char *pkgname = NULL,
+ *pkgver = NULL,
+ *arch = NULL,
+ *distroname = NULL,
+ *distrover = NULL,
+ *group = NULL,
+ *url = NULL,
+ *license = NULL,
+ *uncompressed_size = NULL,
+ *total_files = NULL;
+
+FILE *pkglog = NULL;
+FILE *output = NULL;
+
+
+#define FREE_PKGINFO_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( destination ) { free( destination ); destination = NULL; }
+ if( operation ) { free( operation ); operation = NULL; }
+ if( pkglog_fname ) { free( pkglog_fname ); pkglog_fname = NULL; }
+
+ FREE_PKGINFO_VARIABLES();
+}
+
+void usage()
+{
+ free_resources();
+
+ fprintf( stdout, "\n" );
+ fprintf( stdout, "Usage: %s [options] <pkglog|package>\n", program );
+ fprintf( stdout, "\n" );
+ fprintf( stdout, "Read information from <pkglog> or <package> file and create\n" );
+ fprintf( stdout, "requested package's service files in the destination directory.\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 files.\n" );
+ fprintf( stdout, " -o,--operations=<OP1,..,OPn> Comma separated list of:\n" );
+ fprintf( stdout, "\n" );
+ fprintf( stdout, "Operations:\n" );
+ fprintf( stdout, " ----------------+----------------\n" );
+ fprintf( stdout, " operation name | output file\n" );
+ fprintf( stdout, " ----------------+----------------\n" );
+ fprintf( stdout, " pkginfo | .PKGINFO\n" );
+ fprintf( stdout, " references | .REFERENCES\n" );
+ fprintf( stdout, " requires | .REQUIRES\n" );
+ fprintf( stdout, " description | .DESCRIPTION\n" );
+ fprintf( stdout, " restore-links | .RESTORELINKS\n" );
+ fprintf( stdout, " install-script | .INSTALL\n" );
+ fprintf( stdout, " filelist | .FILELIST\n" );
+ fprintf( stdout, " ----------------+----------------\n" );
+ fprintf( stdout, "\n" );
+ fprintf( stdout, "Parameter:\n" );
+ fprintf( stdout, " <pkglog|package> PKGLOG file 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;
+ }
+}
+
+void fatal_error_actions( void )
+{
+ logmsg( errlog, MSG_NOTICE, "Free resources on FATAL error..." );
+ free_resources();
+}
+
+void sigint( int signum )
+{
+ (void)signum;
+ 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 _pkglog_type
+{
+ PKGLOG_TEXT = 0,
+ PKGLOG_GZ,
+ PKGLOG_BZ2,
+ PKGLOG_XZ,
+ PKGLOG_TAR,
+
+ PKGLOG_UNKNOWN
+};
+
+static enum _pkglog_type pkglog_type = PKGLOG_UNKNOWN;
+static char uncompress[2] = { 0, 0 };
+
+
+static enum _pkglog_type check_pkglog_file( const char *fname )
+{
+ struct stat st;
+ size_t pkglog_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 ) );
+ }
+
+ pkglog_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], "PACKAGE", 7 ) )
+ {
+ close( fd ); return PKGLOG_TEXT;
+ }
+
+ /* GZ */
+ if( buf[0] == 0x1F && buf[1] == 0x8B && buf[2] == 0x08 )
+ {
+ uncompress[0] = 'x';
+ close( fd ); return PKGLOG_GZ;
+ }
+
+ /* BZ2 */
+ if( buf[0] == 0x42 && buf[1] == 0x5A && buf[2] == 0x68 )
+ {
+ uncompress[0] = 'j';
+ close( fd ); return PKGLOG_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 PKGLOG_XZ;
+ }
+
+ if( pkglog_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 PKGLOG_TAR;
+ }
+ }
+
+ close( fd ); return PKGLOG_UNKNOWN;
+}
+
+
+void get_args( int argc, char *argv[] )
+{
+ const char* short_options = "hvd:o:";
+
+ const struct option long_options[] =
+ {
+ { "help", no_argument, NULL, 'h' },
+ { "version", no_argument, NULL, 'v' },
+ { "destination", required_argument, NULL, 'd' },
+ { "operations", required_argument, NULL, 'o' },
+ { 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 'o':
+ {
+ operation = xstrdup( (const char *)optarg );
+ to_lowercase( operation );
+ 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( "." );
+ }
+
+ if( operation == NULL ) usage();
+
+ /* last command line argument is the LOGFILE */
+ if( optind < argc )
+ {
+ pkglog_fname = xstrdup( (const char *)argv[optind++] );
+ if( pkglog_fname == NULL )
+ {
+ usage();
+ }
+ pkglog_type = check_pkglog_file( (const char *)pkglog_fname );
+ if( pkglog_type == PKGLOG_UNKNOWN )
+ {
+ ERROR( "%s: Unknown input file format", basename( pkglog_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'; }
+}
+
+
+int printf_variable( FILE *output, char *log_fname, char *name, char *value, char *pattern, int error )
+{
+ int exit_status = 0; /* local errors counter */
+ char buf[24];
+ char *p;
+
+ bzero( (void *)buf, 24 );
+
+ if( pattern )
+ (void)sprintf( (char *)&buf[0], "%s", pattern );
+
+ p = (char *)&buf[0];
+ p[strlen(buf) - 1] = '\0'; /* skip colon at end of pattern */
+
+ if( value )
+ {
+ fprintf( output, "%s=%s\n", name, value );
+ }
+ else
+ {
+ if( error )
+ {
+ ERROR( "There is no %s declaration in the %s file", p, log_fname );
+ }
+ else
+ {
+ if( ! DO_NOT_WARN_ABOUT_OPT_PKGINFO_ITEMS )
+ WARNING( "There is no %s declaration in the %s file", p, log_fname );
+ }
+ }
+
+ return( exit_status );
+}
+
+
+static void get_short_description( char *buf, const char *line )
+{
+ char *s, *p, *q;
+
+ if( buf ) { buf[0] = '\0'; s = buf; }
+ if( !line || line[0] == '\0' ) return;
+
+ p = index( line, '(' );
+ q = index( line, ')' );
+ if( p && q && q > p )
+ {
+ *s = '"'; ++s; /* start " */
+ ++p;
+ while( *p && p < q )
+ {
+ *s = *p;
+ ++p; ++s;
+ }
+ *s++ = '"'; /* stop " */
+ *s = '\0';
+ }
+}
+
+int write_pkginfo()
+{
+ int ret = -1;
+
+ if( pkglog_fname != NULL )
+ {
+ pkglog = fopen( (const char *)pkglog_fname, "r" );
+ if( !pkglog )
+ {
+ FATAL_ERROR( "Cannot open %s file", pkglog_fname );
+ }
+ }
+
+ if( destination != NULL )
+ {
+ char *output_fname = NULL;
+
+ output_fname = (char *)alloca( strlen( destination ) + 10 );
+ strcpy( output_fname, destination );
+ strcat( output_fname, "/.PKGINFO" );
+ output = fopen( (const char *)output_fname, "w" );
+ if( !output )
+ {
+ FATAL_ERROR( "Cannot create %s file", output_fname );
+ }
+ }
+
+ if( (pkglog != NULL) && (output != NULL) )
+ {
+ char *ln = NULL;
+ char *line = NULL;
+ char *desc = NULL;
+
+ char *pkgname_pattern = "PACKAGE NAME:",
+ *pkgver_pattern = "PACKAGE VERSION:",
+ *arch_pattern = "ARCH:",
+ *distroname_pattern = "DISTRO:",
+ *distrover_pattern = "DISTRO VERSION:",
+ *group_pattern = "GROUP:",
+ *url_pattern = "URL:",
+ *license_pattern = "LICENSE:",
+ *uncompressed_size_pattern = "UNCOMPRESSED SIZE:",
+ *total_files_pattern = "TOTAL FILES:";
+
+ line = (char *)malloc( (size_t)PATH_MAX );
+ if( !line )
+ {
+ FATAL_ERROR( "Cannot allocate memory" );
+ }
+
+ ++ret;
+
+ while( (ln = fgets( line, PATH_MAX, pkglog )) )
+ {
+ 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_pattern )) && match == ln ) /* at start of line only */
+ {
+ pkgname = skip_spaces( ln + strlen( pkgname_pattern ) );
+ }
+ if( (match = strstr( ln, pkgver_pattern )) && match == ln )
+ {
+ pkgver = skip_spaces( ln + strlen( pkgver_pattern ) );
+ }
+ if( (match = strstr( ln, arch_pattern )) && match == ln )
+ {
+ arch = skip_spaces( ln + strlen( arch_pattern ) );
+ }
+ if( (match = strstr( ln, distroname_pattern )) && match == ln )
+ {
+ distroname = skip_spaces( ln + strlen( distroname_pattern ) );
+ }
+ if( (match = strstr( ln, distrover_pattern )) && match == ln )
+ {
+ distrover = skip_spaces( ln + strlen( distrover_pattern ) );
+ }
+ if( (match = strstr( ln, group_pattern )) && match == ln )
+ {
+ group = skip_spaces( ln + strlen( group_pattern ) );
+ }
+ if( (match = strstr( ln, url_pattern )) && match == ln )
+ {
+ url = skip_spaces( ln + strlen( url_pattern ) );
+ }
+ if( (match = strstr( ln, license_pattern )) && match == ln )
+ {
+ license = skip_spaces( ln + strlen( license_pattern ) );
+ }
+ if( (match = strstr( ln, uncompressed_size_pattern )) && match == ln )
+ {
+ uncompressed_size = skip_spaces( ln + strlen( uncompressed_size_pattern ) );
+ }
+ if( (match = strstr( ln, total_files_pattern )) && match == ln )
+ {
+ total_files = skip_spaces( ln + strlen( total_files_pattern ) );
+ }
+ if( (match = strstr( ln, "PACKAGE DESCRIPTION:" )) && match == ln )
+ {
+ char *buf = NULL;
+
+ buf = (char *)malloc( (size_t)PATH_MAX );
+ if( !buf )
+ {
+ FATAL_ERROR( "Cannot allocate memory" );
+ }
+
+ /* Get short_description from PACKAGE DESCRIPTION */
+ ln = fgets( line, PATH_MAX, pkglog );
+ ln[strlen(ln) - 1] = '\0'; /* replace new-line symbol */
+
+ bzero( (void *)buf, PATH_MAX );
+ get_short_description( buf, (const char *)line );
+ if( buf[0] != '\0' )
+ {
+ desc = xstrdup( (const char *)buf );
+ }
+ free( buf );
+ }
+ }
+
+ free( line );
+
+ ret += printf_variable( output, pkglog_fname, "pkgname", pkgname, pkgname_pattern, 1 );
+ ret += printf_variable( output, pkglog_fname, "pkgver", pkgver, pkgver_pattern, 1 );
+ ret += printf_variable( output, pkglog_fname, "arch", arch, arch_pattern, 1 );
+ ret += printf_variable( output, pkglog_fname, "distroname", distroname, distroname_pattern, 1 );
+ ret += printf_variable( output, pkglog_fname, "distrover", distrover, distrover_pattern, 1 );
+ ret += printf_variable( output, pkglog_fname, "group", group, group_pattern, 0 );
+ if( desc != NULL )
+ {
+ ret += printf_variable( output, pkglog_fname, "short_description", desc, "SHORT DESCRIPTION:", 0 );
+ free( desc ); desc = NULL;
+ }
+ ret += printf_variable( output, pkglog_fname, "url", url, url_pattern, 0 );
+ ret += printf_variable( output, pkglog_fname, "license", license, license_pattern, 0 );
+ ret += printf_variable( output, pkglog_fname, "uncompressed_size", uncompressed_size, uncompressed_size_pattern, 0 );
+ ret += printf_variable( output, pkglog_fname, "total_files", total_files, total_files_pattern, 0 );
+
+ FREE_PKGINFO_VARIABLES();
+
+ fclose( pkglog ); pkglog = NULL;
+ fclose( output ); output = NULL;
+ }
+
+ return( ret );
+}
+
+
+/*
+ NOTE:
+ 1. first line has number 1.
+ 2. sections are ordered according to following list:
+ */
+int reference_counter = 0;
+int requires = 0;
+int package_description = 0;
+int restore_links = 0;
+int install_script = 0;
+int file_list = 0;
+
+int refcount = 0;
+
+
+int get_pkglog_sections()
+{
+ int ret = -1, found = 0;
+
+ if( pkglog_fname != NULL )
+ {
+ pkglog = fopen( (const char *)pkglog_fname, "r" );
+ if( !pkglog )
+ {
+ FATAL_ERROR( "Cannot open %s file", pkglog_fname );
+ }
+ }
+
+ if( pkglog != NULL )
+ {
+ char *ln = NULL;
+ char *line = NULL;
+
+ line = (char *)malloc( (size_t)PATH_MAX );
+ if( !line )
+ {
+ FATAL_ERROR( "Cannot allocate memory" );
+ }
+
+ ++ret;
+
+ while( (ln = fgets( line, PATH_MAX, pkglog )) )
+ {
+ char *match = NULL;
+
+ if( (match = strstr( ln, "REFERENCE COUNTER:" )) && match == ln ) /* at start of line only */
+ {
+ reference_counter = ret + 1;
+ ++found;
+ }
+ if( (match = strstr( ln, "REQUIRES:" )) && match == ln )
+ {
+ requires = ret + 1;
+ ++found;
+ }
+ if( (match = strstr( ln, "PACKAGE DESCRIPTION:" )) && match == ln )
+ {
+ package_description = ret + 1;
+ ++found;
+ }
+ if( (match = strstr( ln, "RESTORE LINKS:" )) && match == ln )
+ {
+ restore_links = ret + 1;
+ ++found;
+ }
+ if( (match = strstr( ln, "INSTALL SCRIPT:" )) && match == ln )
+ {
+ install_script = ret + 1;
+ ++found;
+ }
+ if( (match = strstr( ln, "FILE LIST:" )) && match == ln )
+ {
+ file_list = ret + 1;
+ ++found;
+ }
+
+ ++ret;
+ }
+
+ free( line );
+
+ ret = found;
+
+ fclose( pkglog ); pkglog = NULL;
+ }
+
+ return( ret );
+}
+
+
+int get_pkglog_line( char *pattern )
+{
+ int ret = -1, found = 0;
+
+ if( pkglog_fname != NULL )
+ {
+ pkglog = fopen( (const char *)pkglog_fname, "r" );
+ if( !pkglog )
+ {
+ FATAL_ERROR( "Cannot open %s file", pkglog_fname );
+ }
+ }
+
+ if( pkglog != NULL )
+ {
+ char *ln = NULL;
+ char *line = NULL;
+
+ line = (char *)malloc( (size_t)PATH_MAX );
+ if( !line )
+ {
+ FATAL_ERROR( "Cannot allocate memory" );
+ }
+
+ ++ret;
+ while( (ln = fgets( line, PATH_MAX, pkglog )) )
+ {
+ char *match = NULL;
+
+ if( (match = strstr( ln, pattern )) && match == ln ) /* at start of line only */
+ {
+ ++ret;
+ ++found;
+ break;
+ }
+ ++ret;
+ }
+ if( !found ) ret = 0;
+
+ free( line );
+
+ fclose( pkglog ); pkglog = NULL;
+ }
+ return( ret );
+}
+
+
+int get_ref_cnt()
+{
+ int ret = -1, found = 0;
+
+ if( pkglog_fname != NULL )
+ {
+ pkglog = fopen( (const char *)pkglog_fname, "r" );
+ if( !pkglog )
+ {
+ FATAL_ERROR( "Cannot open %s file", pkglog_fname );
+ }
+ }
+
+ if( pkglog != NULL )
+ {
+ char *ln = NULL;
+ char *line = NULL;
+
+ line = (char *)malloc( (size_t)PATH_MAX );
+ if( !line )
+ {
+ FATAL_ERROR( "Cannot allocate memory" );
+ }
+
+ ++ret;
+
+ while( (ln = fgets( line, PATH_MAX, pkglog )) )
+ {
+ 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, "REFERENCE COUNTER:" )) && match == ln ) /* at start of line only */
+ {
+ char *cnt = skip_spaces( ln + strlen( "REFERENCE COUNTER:" ) );
+ ret = atoi( cnt );
+ free( cnt );
+ ++found;
+ break;
+ }
+ }
+ if( !found ) ret = -1;
+
+ free( line );
+
+ fclose( pkglog ); pkglog = NULL;
+ }
+ return( ret );
+}
+
+
+int write_references()
+{
+ int ret = -1;
+
+ if( pkglog_fname != NULL )
+ {
+ pkglog = fopen( (const char *)pkglog_fname, "r" );
+ if( !pkglog )
+ {
+ FATAL_ERROR( "Cannot open %s file", pkglog_fname );
+ }
+ }
+
+ if( destination != NULL )
+ {
+ char *output_fname = NULL;
+
+ output_fname = (char *)alloca( strlen( destination ) + 13 );
+ strcpy( output_fname, destination );
+ strcat( output_fname, "/.REFERENCES" );
+ output = fopen( (const char *)output_fname, "w" );
+ if( !output )
+ {
+ FATAL_ERROR( "Cannot create %s file", output_fname );
+ }
+ }
+
+ if( (pkglog != NULL) && (output != NULL) )
+ {
+ char *ln = NULL;
+ char *line = NULL;
+
+ line = (char *)malloc( (size_t)PATH_MAX );
+ if( !line )
+ {
+ FATAL_ERROR( "Cannot allocate memory" );
+ }
+
+ ++ret;
+
+ if( reference_counter && reference_counter < requires )
+ {
+ int n = 1, lines = 0;
+
+ ++ret;
+
+ while( (ln = fgets( line, PATH_MAX, pkglog )) )
+ {
+ ln[strlen(ln) - 1] = '\0'; /* replace new-line symbol */
+ skip_eol_spaces( ln ); /* remove spaces at end-of-line */
+
+ if( (n > reference_counter) && (n < requires) )
+ {
+ fprintf( output, "%s\n", ln );
+ ++lines;
+ }
+ ++n;
+ }
+
+ ret = lines; /* number of lines in the LIST */
+ }
+
+ free( line );
+
+ fclose( pkglog ); pkglog = NULL;
+ fclose( output ); output = NULL;
+ }
+
+ return( ret );
+}
+
+
+int write_requires()
+{
+ int ret = -1;
+
+ if( pkglog_fname != NULL )
+ {
+ pkglog = fopen( (const char *)pkglog_fname, "r" );
+ if( !pkglog )
+ {
+ FATAL_ERROR( "Cannot open %s file", pkglog_fname );
+ }
+ }
+
+ if( destination != NULL )
+ {
+ char *output_fname = NULL;
+
+ output_fname = (char *)alloca( strlen( destination ) + 11 );
+ strcpy( output_fname, destination );
+ strcat( output_fname, "/.REQUIRES" );
+ output = fopen( (const char *)output_fname, "w" );
+ if( !output )
+ {
+ FATAL_ERROR( "Cannot create %s file", output_fname );
+ }
+ }
+
+ if( (pkglog != NULL) && (output != NULL) )
+ {
+ char *ln = NULL;
+ char *line = NULL;
+
+ line = (char *)malloc( (size_t)PATH_MAX );
+ if( !line )
+ {
+ FATAL_ERROR( "Cannot allocate memory" );
+ }
+
+ ++ret;
+
+ if( requires && requires < package_description )
+ {
+ int n = 1, lines = 0;
+
+ ++ret;
+
+ while( (ln = fgets( line, PATH_MAX, pkglog )) )
+ {
+ ln[strlen(ln) - 1] = '\0'; /* replace new-line symbol */
+ skip_eol_spaces( ln ); /* remove spaces at end-of-line */
+
+ if( (n > requires) && (n < package_description) )
+ {
+ fprintf( output, "%s\n", ln );
+ ++lines;
+ }
+ ++n;
+ }
+
+ ret = lines; /* number of lines in the LIST */
+ }
+
+ free( line );
+
+ fclose( pkglog ); pkglog = NULL;
+ fclose( output ); output = NULL;
+ }
+
+ return( ret );
+}
+
+
+int write_package_description()
+{
+ int ret = -1;
+
+ if( pkglog_fname != NULL )
+ {
+ pkglog = fopen( (const char *)pkglog_fname, "r" );
+ if( !pkglog )
+ {
+ FATAL_ERROR( "Cannot open %s file", pkglog_fname );
+ }
+ }
+
+ if( destination != NULL )
+ {
+ char *output_fname = NULL;
+
+ output_fname = (char *)alloca( strlen( destination ) + 14 );
+ strcpy( output_fname, destination );
+ strcat( output_fname, "/.DESCRIPTION" );
+ output = fopen( (const char *)output_fname, "w" );
+ if( !output )
+ {
+ FATAL_ERROR( "Cannot create %s file", output_fname );
+ }
+ }
+
+ if( (pkglog != NULL) && (output != NULL) )
+ {
+ char *ln = NULL;
+ char *line = NULL;
+
+ line = (char *)malloc( (size_t)PATH_MAX );
+ if( !line )
+ {
+ FATAL_ERROR( "Cannot allocate memory" );
+ }
+
+ ++ret;
+
+ if( package_description && package_description < restore_links )
+ {
+ int n = 1, lines = 0;
+
+ ++ret;
+
+ while( (ln = fgets( line, PATH_MAX, pkglog )) )
+ {
+ ln[strlen(ln) - 1] = '\0'; /* replace new-line symbol */
+ skip_eol_spaces( ln ); /* remove spaces at end-of-line */
+
+ if( (n > package_description) && (n < restore_links) )
+ {
+ fprintf( output, "%s\n", ln );
+ ++lines;
+ }
+ ++n;
+ }
+
+ ret = lines; /* number of lines in the LIST */
+ }
+
+ free( line );
+
+ fclose( pkglog ); pkglog = NULL;
+ fclose( output ); output = NULL;
+ }
+
+ return( ret );
+}
+
+
+int write_restore_links()
+{
+ int ret = -1;
+
+ if( pkglog_fname != NULL )
+ {
+ pkglog = fopen( (const char *)pkglog_fname, "r" );
+ if( !pkglog )
+ {
+ FATAL_ERROR( "Cannot open %s file", pkglog_fname );
+ }
+ }
+
+ if( destination != NULL )
+ {
+ char *output_fname = NULL;
+
+ output_fname = (char *)alloca( strlen( destination ) + 15 );
+ strcpy( output_fname, destination );
+ strcat( output_fname, "/.RESTORELINKS" );
+ output = fopen( (const char *)output_fname, "w" );
+ if( !output )
+ {
+ FATAL_ERROR( "Cannot create %s file", output_fname );
+ }
+ }
+
+ if( (pkglog != NULL) && (output != NULL) )
+ {
+ char *ln = NULL;
+ char *line = NULL;
+
+ line = (char *)malloc( (size_t)PATH_MAX );
+ if( !line )
+ {
+ FATAL_ERROR( "Cannot allocate memory" );
+ }
+
+ ++ret;
+
+ if( restore_links && restore_links < install_script )
+ {
+ int n = 1, lines = 0;
+
+ ++ret;
+
+ while( (ln = fgets( line, PATH_MAX, pkglog )) )
+ {
+ ln[strlen(ln) - 1] = '\0'; /* replace new-line symbol */
+ skip_eol_spaces( ln ); /* remove spaces at end-of-line */
+
+ if( (n > restore_links) && (n < install_script) )
+ {
+ fprintf( output, "%s\n", ln );
+ ++lines;
+ }
+ ++n;
+ }
+
+ ret = lines; /* number of lines in the LIST */
+ }
+
+ free( line );
+
+ fclose( pkglog ); pkglog = NULL;
+ fclose( output ); output = NULL;
+ }
+
+ return( ret );
+}
+
+
+int write_install_script()
+{
+ int ret = -1;
+ char *output_fname = NULL;
+
+ if( pkglog_fname != NULL )
+ {
+ pkglog = fopen( (const char *)pkglog_fname, "r" );
+ if( !pkglog )
+ {
+ FATAL_ERROR( "Cannot open %s file", pkglog_fname );
+ }
+ }
+
+ if( destination != NULL )
+ {
+ output_fname = (char *)alloca( strlen( destination ) + 10 );
+ strcpy( output_fname, destination );
+ strcat( output_fname, "/.INSTALL" );
+ output = fopen( (const char *)output_fname, "w" );
+ if( !output )
+ {
+ FATAL_ERROR( "Cannot create %s file", output_fname );
+ }
+ }
+
+ if( (pkglog != NULL) && (output != NULL) )
+ {
+ char *ln = NULL;
+ char *line = NULL;
+
+ line = (char *)malloc( (size_t)PATH_MAX );
+ if( !line )
+ {
+ FATAL_ERROR( "Cannot allocate memory" );
+ }
+
+ ++ret;
+
+ if( install_script && install_script < file_list )
+ {
+ int n = 1, lines = 0;
+
+ ++ret;
+
+ while( (ln = fgets( line, PATH_MAX, pkglog )) )
+ {
+ ln[strlen(ln) - 1] = '\0'; /* replace new-line symbol */
+ skip_eol_spaces( ln ); /* remove spaces at end-of-line */
+
+ if( (n > install_script) && (n < file_list) )
+ {
+ fprintf( output, "%s\n", ln );
+ ++lines;
+ }
+ ++n;
+ }
+
+ ret = lines; /* number of lines in the LIST */
+ }
+
+ free( line );
+
+ fclose( pkglog ); pkglog = NULL;
+ fclose( output ); output = NULL;
+ }
+
+ chmod( (const char *)output_fname, (mode_t)0755 );
+
+ return( ret );
+}
+
+
+int write_filelist()
+{
+ int ret = -1;
+
+ if( pkglog_fname != NULL )
+ {
+ pkglog = fopen( (const char *)pkglog_fname, "r" );
+ if( !pkglog )
+ {
+ FATAL_ERROR( "Cannot open %s file", pkglog_fname );
+ }
+ }
+
+ if( destination != NULL )
+ {
+ char *output_fname = NULL;
+
+ output_fname = (char *)alloca( strlen( destination ) + 11 );
+ strcpy( output_fname, destination );
+ strcat( output_fname, "/.FILELIST" );
+ output = fopen( (const char *)output_fname, "w" );
+ if( !output )
+ {
+ FATAL_ERROR( "Cannot create %s file", output_fname );
+ }
+ }
+
+ if( (pkglog != NULL) && (output != NULL) )
+ {
+ char *ln = NULL;
+ char *line = NULL;
+
+ line = (char *)malloc( (size_t)PATH_MAX );
+ if( !line )
+ {
+ FATAL_ERROR( "Cannot allocate memory" );
+ }
+
+ ++ret;
+
+ if( file_list )
+ {
+ int n = 1, lines = 0;
+
+ ++ret;
+
+ while( (ln = fgets( line, PATH_MAX, pkglog )) )
+ {
+ ln[strlen(ln) - 1] = '\0'; /* replace new-line symbol */
+ skip_eol_spaces( ln ); /* remove spaces at end-of-line */
+
+ if( n > file_list )
+ {
+ fprintf( output, "%s\n", ln );
+ ++lines;
+ }
+ ++n;
+ }
+
+ ret = lines; /* number of lines in the LIST */
+ }
+
+ free( line );
+
+ fclose( pkglog ); pkglog = NULL;
+ fclose( output ); output = NULL;
+ }
+
+ return( ret );
+}
+
+
+/*********************************************
+ Get directory where this program is placed:
+ */
+char *get_selfdir( void )
+{
+ char *buf = NULL;
+ ssize_t len;
+
+ buf = (char *)malloc( 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[] )
+{
+ int sections = 0;
+ 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( pkglog_type == PKGLOG_TEXT )
+ {
+ sections = get_pkglog_sections();
+ if( sections < 3 )
+ {
+ FATAL_ERROR( "%s: Wrong PKGLOG file format", basename( pkglog_fname) );
+ }
+
+ refcount = get_ref_cnt();
+
+ if( strstr( operation, "pkginfo" ) ) exit_status += write_pkginfo();
+
+ if( strstr( operation, "references" ) )
+ {
+ if( !reference_counter )
+ {
+ WARNING( "The REFERENCE COUNTER is not present in %s file", basename( pkglog_fname ) );
+ }
+ else
+ {
+ if( write_references() != refcount )
+ {
+ WARNING( "The REFERENCE COUNTER invalid in %s file", basename( pkglog_fname ) );
+ }
+ }
+ }
+
+ if( strstr( operation, "requires" ) )
+ {
+ if( write_requires() <= 0 )
+ {
+ if( ! DO_NOT_WARN_ABOUT_EMPTY_REQUIRES )
+ WARNING( "The REQUIRES is not present in %s file", basename( pkglog_fname ) );
+ }
+ }
+
+ if( strstr( operation, "description" ) )
+ {
+ if( write_package_description() <= 0 )
+ {
+ WARNING( "The PACKAGE DESCRIPTION is not present in %s file", basename( pkglog_fname ) );
+ }
+ }
+
+ if( strstr( operation, "restore-links" ) )
+ {
+ if( write_restore_links() <= 0 )
+ {
+ if( ! DO_NOT_WARN_ABOUT_EMPTY_RESTORE_LINKS )
+ WARNING( "The RESTORE LINKS is not present in %s file", basename( pkglog_fname ) );
+ }
+ }
+
+ if( strstr( operation, "install-script" ) )
+ {
+ if( write_install_script() <= 0 )
+ {
+ ERROR( "The INSTALL SCRIPT is not present in %s file", basename( pkglog_fname ) );
+ }
+ }
+
+ if( strstr( operation, "filelist" ) )
+ {
+ if( write_filelist() <= 0 )
+ {
+ ERROR( "The FILE LIST is not present in %s file", basename( pkglog_fname ) );
+ }
+ }
+
+ }
+ else /* TARBALL: */
+ {
+ 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" ); }
+
+
+ if( strstr( operation, "pkginfo" ) ) /* strongly required */
+ {
+ bzero( (void *)cmd, PATH_MAX );
+ bzero( (void *)errmsg, PATH_MAX );
+ bzero( (void *)wmsg, PATH_MAX );
+
+ (void)sprintf( &errmsg[0], "Cannot get .PKGINFO from %s file", basename( pkglog_fname ) );
+
+ len = snprintf( &cmd[0], PATH_MAX, "tar -C %s -x%sf %s %s > /dev/null 2>&1", destination, uncompress, pkglog_fname, ".PKGINFO" );
+ 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( 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 );
+ }
+ }
+
+ /* .REFERENCES is not present in package tarball */
+
+ if( strstr( operation, "requires" ) ) /* optional; may be warning */
+ {
+ bzero( (void *)cmd, PATH_MAX );
+ bzero( (void *)errmsg, PATH_MAX );
+ bzero( (void *)wmsg, PATH_MAX );
+
+ (void)sprintf( &errmsg[0], "Cannot get .REQUIRES from %s file", basename( pkglog_fname ) );
+
+ (void)sprintf( &cmd[0], "tar -C %s -x%sf %s %s > /dev/null 2>&1", destination, uncompress, pkglog_fname, ".REQUIRES" );
+ p = sys_exec_command( cmd );
+ rc = sys_wait_command( p, (char *)&wmsg[0], PATH_MAX );
+ if( rc != 0 && DO_NOT_WARN_ABOUT_EMPTY_REQUIRES == 0 )
+ {
+ WARNING( errmsg );
+ }
+ }
+
+ if( strstr( operation, "description" ) ) /* optional; always warning */
+ {
+ bzero( (void *)cmd, PATH_MAX );
+ bzero( (void *)wmsg, PATH_MAX );
+
+ (void)sprintf( &cmd[0], "tar -C %s -x%sf %s %s > /dev/null 2>&1", destination, uncompress, pkglog_fname, ".DESCRIPTION" );
+ p = sys_exec_command( cmd );
+ rc = sys_wait_command( p, (char *)&wmsg[0], PATH_MAX );
+ if( rc != 0 )
+ {
+ WARNING( "Cannot get package .DESCRIPTION from %s file", basename( pkglog_fname ) );
+ }
+ }
+
+ if( strstr( operation, "restore-links" ) ) /* optional; may be warning */
+ {
+ bzero( (void *)cmd, PATH_MAX );
+ bzero( (void *)errmsg, PATH_MAX );
+ bzero( (void *)wmsg, PATH_MAX );
+
+ (void)sprintf( &errmsg[0], "Cannot get .RESTORELINKS script from %s file", basename( pkglog_fname ) );
+
+ (void)sprintf( &cmd[0], "tar -C %s -x%sf %s %s > /dev/null 2>&1", destination, uncompress, pkglog_fname, ".RESTORELINKS" );
+ p = sys_exec_command( cmd );
+ rc = sys_wait_command( p, (char *)&wmsg[0], PATH_MAX );
+ if( rc != 0 && DO_NOT_WARN_ABOUT_EMPTY_RESTORE_LINKS == 0 )
+ {
+ WARNING( errmsg );
+ }
+ }
+
+ if( strstr( operation, "install-script" ) ) /* strongly required */
+ {
+ bzero( (void *)cmd, PATH_MAX );
+ bzero( (void *)errmsg, PATH_MAX );
+ bzero( (void *)wmsg, PATH_MAX );
+
+ (void)sprintf( &errmsg[0], "Cannot get .INSTALL script from %s file", basename( pkglog_fname ) );
+
+ len = snprintf( &cmd[0], PATH_MAX, "tar -C %s -x%sf %s %s > /dev/null 2>&1", destination, uncompress, pkglog_fname, ".INSTALL" );
+ 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( 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( strstr( operation, "filelist" ) ) /* strongly required */
+ {
+ bzero( (void *)cmd, PATH_MAX );
+ bzero( (void *)errmsg, PATH_MAX );
+ bzero( (void *)wmsg, PATH_MAX );
+
+ (void)sprintf( &errmsg[0], "Cannot get .FILELIST from %s file", basename( pkglog_fname ) );
+
+ len = snprintf( &cmd[0], PATH_MAX, "tar -C %s -x%sf %s %s > /dev/null 2>&1", destination, uncompress, pkglog_fname, ".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( 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 );
+ }
+
+
+ free_resources();
+
+ exit( exit_status );
+}