Give in and copy bjam into cdec source code

1 files changed, 501 insertions, 0 deletions

diff --git a/jam-files/engine/fileunix.c b/jam-files/engine/fileunix.c
new file mode 100644
index 00000000..680c3f53
--- /dev/null
+++ b/jam-files/engine/fileunix.c
@@ -0,0 +1,501 @@
+/*
+ * Copyright 1993-2002 Christopher Seiwald and Perforce Software, Inc.
+ *
+ * This file is part of Jam - see jam.c for Copyright information.
+ */
+
+/*  This file is ALSO:
+ *  Copyright 2001-2004 David Abrahams.
+ *  Copyright 2005 Rene Rivera.
+ *  Distributed under the Boost Software License, Version 1.0.
+ *  (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
+ */
+
+# include "jam.h"
+# include "filesys.h"
+# include "strings.h"
+# include "pathsys.h"
+# include "newstr.h"
+# include <stdio.h>
+# include <sys/stat.h>
+
+#if defined(sun) || defined(__sun) || defined(linux)
+# include <unistd.h> /* needed for read and close prototype */
+#endif
+
+# ifdef USE_FILEUNIX
+
+#if defined(sun) || defined(__sun)
+# include <unistd.h> /* needed for read and close prototype */
+#endif
+
+# if defined( OS_SEQUENT ) || \
+     defined( OS_DGUX ) || \
+     defined( OS_SCO ) || \
+     defined( OS_ISC )
+# define PORTAR 1
+# endif
+
+# ifdef __EMX__
+# include <sys/types.h>
+# include <sys/stat.h>
+# endif
+
+# if defined( OS_RHAPSODY ) || \
+     defined( OS_MACOSX ) || \
+     defined( OS_NEXT )
+/* need unistd for rhapsody's proper lseek */
+# include <sys/dir.h>
+# include <unistd.h>
+# define STRUCT_DIRENT struct direct
+# else
+# include <dirent.h>
+# define STRUCT_DIRENT struct dirent
+# endif
+
+# ifdef OS_COHERENT
+# include <arcoff.h>
+# define HAVE_AR
+# endif
+
+# if defined( OS_MVS ) || \
+         defined( OS_INTERIX )
+
+#define ARMAG   "!<arch>\n"
+#define SARMAG  8
+#define ARFMAG  "`\n"
+
+struct ar_hdr       /* archive file member header - printable ascii */
+{
+    char    ar_name[16];    /* file member name - `/' terminated */
+    char    ar_date[12];    /* file member date - decimal */
+    char    ar_uid[6];  /* file member user id - decimal */
+    char    ar_gid[6];  /* file member group id - decimal */
+    char    ar_mode[8]; /* file member mode - octal */
+    char    ar_size[10];    /* file member size - decimal */
+    char    ar_fmag[2]; /* ARFMAG - string to end header */
+};
+
+# define HAVE_AR
+# endif
+
+# if defined( OS_QNX ) || \
+     defined( OS_BEOS ) || \
+     defined( OS_MPEIX )
+# define NO_AR
+# define HAVE_AR
+# endif
+
+# ifndef HAVE_AR
+
+# ifdef OS_AIX
+/* Define those for AIX to get the definitions for both the small and the
+ * big variant of the archive file format. */
+#    define __AR_SMALL__
+#    define __AR_BIG__
+# endif
+
+# include <ar.h>
+# endif
+
+/*
+ * fileunix.c - manipulate file names and scan directories on UNIX/AmigaOS
+ *
+ * External routines:
+ *
+ *  file_dirscan() - scan a directory for files
+ *  file_time() - get timestamp of file, if not done by file_dirscan()
+ *  file_archscan() - scan an archive for files
+ *
+ * File_dirscan() and file_archscan() call back a caller provided function
+ * for each file found.  A flag to this callback function lets file_dirscan()
+ * and file_archscan() indicate that a timestamp is being provided with the
+ * file.   If file_dirscan() or file_archscan() do not provide the file's
+ * timestamp, interested parties may later call file_time().
+ *
+ * 04/08/94 (seiwald) - Coherent/386 support added.
+ * 12/19/94 (mikem) - solaris string table insanity support
+ * 02/14/95 (seiwald) - parse and build /xxx properly
+ * 05/03/96 (seiwald) - split into pathunix.c
+ * 11/21/96 (peterk) - BEOS does not have Unix-style archives
+ */
+
+
+/*
+ * file_dirscan() - scan a directory for files.
+ */
+
+void file_dirscan( char * dir, scanback func, void * closure )
+{
+    PROFILE_ENTER( FILE_DIRSCAN );
+
+    file_info_t * d = 0;
+
+    d = file_query( dir );
+
+    if ( !d || !d->is_dir )
+    {
+        PROFILE_EXIT( FILE_DIRSCAN );
+        return;
+    }
+
+    if ( ! d->files )
+    {
+        LIST* files = L0;
+        PATHNAME f;
+        DIR *dd;
+        STRUCT_DIRENT *dirent;
+        string filename[1];
+
+        /* First enter directory itself */
+
+        memset( (char *)&f, '\0', sizeof( f ) );
+
+        f.f_dir.ptr = dir;
+        f.f_dir.len = strlen(dir);
+
+        dir = *dir ? dir : ".";
+
+        /* Now enter contents of directory. */
+
+        if ( !( dd = opendir( dir ) ) )
+        {
+            PROFILE_EXIT( FILE_DIRSCAN );
+            return;
+        }
+
+        if ( DEBUG_BINDSCAN )
+            printf( "scan directory %s\n", dir );
+
+        string_new( filename );
+        while ( ( dirent = readdir( dd ) ) )
+        {
+            # ifdef old_sinix
+            /* Broken structure definition on sinix. */
+            f.f_base.ptr = dirent->d_name - 2;
+            # else
+            f.f_base.ptr = dirent->d_name;
+            # endif
+            f.f_base.len = strlen( f.f_base.ptr );
+
+            string_truncate( filename, 0 );
+            path_build( &f, filename, 0 );
+
+            files = list_new( files, newstr(filename->value) );
+            file_query( filename->value );
+        }
+        string_free( filename );
+
+        closedir( dd );
+
+        d->files = files;
+    }
+
+    /* Special case / : enter it */
+    {
+        unsigned long len = strlen(d->name);
+        if ( ( len == 1 ) && ( d->name[0] == '/' ) )
+            (*func)( closure, d->name, 1 /* stat()'ed */, d->time );
+    }
+
+    /* Now enter contents of directory */
+    if ( d->files )
+    {
+        LIST * files = d->files;
+        while ( files )
+        {
+            file_info_t * ff = file_info( files->string );
+            (*func)( closure, ff->name, 1 /* stat()'ed */, ff->time );
+            files = list_next( files );
+        }
+    }
+
+    PROFILE_EXIT( FILE_DIRSCAN );
+}
+
+
+file_info_t * file_query( char * filename )
+{
+    file_info_t * ff = file_info( filename );
+    if ( ! ff->time )
+    {
+        struct stat statbuf;
+
+        if ( stat( *filename ? filename : ".", &statbuf ) < 0 )
+            return 0;
+
+        ff->is_file = statbuf.st_mode & S_IFREG ? 1 : 0;
+        ff->is_dir = statbuf.st_mode & S_IFDIR ? 1 : 0;
+        ff->size = statbuf.st_size;
+        ff->time = statbuf.st_mtime ? statbuf.st_mtime : 1;
+    }
+    return ff;
+}
+
+/*
+ * file_time() - get timestamp of file, if not done by file_dirscan()
+ */
+
+int
+file_time(
+    char    *filename,
+    time_t  *time )
+{
+    file_info_t * ff = file_query( filename );
+    if ( !ff ) return -1;
+    *time = ff->time;
+    return 0;
+}
+
+int file_is_file(char* filename)
+{
+    file_info_t * ff = file_query( filename );
+    if ( !ff ) return -1;
+    return ff->is_file;
+}
+
+int file_mkdir(char* pathname)
+{
+    return mkdir(pathname, 0766);
+}
+
+/*
+ * file_archscan() - scan an archive for files
+ */
+
+# ifndef AIAMAG /* God-fearing UNIX */
+
+# define SARFMAG 2
+# define SARHDR sizeof( struct ar_hdr )
+
+void
+file_archscan(
+    char *archive,
+    scanback func,
+    void *closure )
+{
+# ifndef NO_AR
+    struct ar_hdr ar_hdr;
+    char buf[ MAXJPATH ];
+    long offset;
+    char    *string_table = 0;
+    int fd;
+
+    if ( ( fd = open( archive, O_RDONLY, 0 ) ) < 0 )
+        return;
+
+    if ( read( fd, buf, SARMAG ) != SARMAG ||
+        strncmp( ARMAG, buf, SARMAG ) )
+    {
+        close( fd );
+        return;
+    }
+
+    offset = SARMAG;
+
+    if ( DEBUG_BINDSCAN )
+        printf( "scan archive %s\n", archive );
+
+    while ( ( read( fd, &ar_hdr, SARHDR ) == SARHDR )
+           && !( memcmp( ar_hdr.ar_fmag, ARFMAG, SARFMAG )
+#ifdef ARFZMAG
+              /* OSF also has a compressed format */
+              && memcmp( ar_hdr.ar_fmag, ARFZMAG, SARFMAG )
+#endif
+          ) )
+    {
+        char   lar_name_[257];
+        char * lar_name = lar_name_ + 1;
+        long   lar_date;
+        long   lar_size;
+        long   lar_offset;
+        char * c;
+        char * src;
+        char * dest;
+
+        strncpy( lar_name, ar_hdr.ar_name, sizeof(ar_hdr.ar_name) );
+
+        sscanf( ar_hdr.ar_date, "%ld", &lar_date );
+        sscanf( ar_hdr.ar_size, "%ld", &lar_size );
+
+        if (ar_hdr.ar_name[0] == '/')
+        {
+        if (ar_hdr.ar_name[1] == '/')
+        {
+            /* this is the "string table" entry of the symbol table,
+            ** which holds strings of filenames that are longer than
+            ** 15 characters (ie. don't fit into a ar_name
+            */
+
+            string_table = (char *)BJAM_MALLOC_ATOMIC(lar_size);
+            lseek(fd, offset + SARHDR, 0);
+            if (read(fd, string_table, lar_size) != lar_size)
+            printf("error reading string table\n");
+        }
+        else if (string_table && ar_hdr.ar_name[1] != ' ')
+        {
+            /* Long filenames are recognized by "/nnnn" where nnnn is
+            ** the offset of the string in the string table represented
+            ** in ASCII decimals.
+            */
+            dest = lar_name;
+            lar_offset = atoi(lar_name + 1);
+            src = &string_table[lar_offset];
+            while (*src != '/')
+            *dest++ = *src++;
+            *dest = '/';
+        }
+        }
+
+        c = lar_name - 1;
+        while ( ( *++c != ' ' ) && ( *c != '/' ) ) ;
+        *c = '\0';
+
+        if ( DEBUG_BINDSCAN )
+        printf( "archive name %s found\n", lar_name );
+
+        sprintf( buf, "%s(%s)", archive, lar_name );
+
+        (*func)( closure, buf, 1 /* time valid */, (time_t)lar_date );
+
+        offset += SARHDR + ( ( lar_size + 1 ) & ~1 );
+        lseek( fd, offset, 0 );
+    }
+
+    if (string_table)
+        BJAM_FREE(string_table);
+
+    close( fd );
+
+# endif /* NO_AR */
+
+}
+
+# else /* AIAMAG - RS6000 AIX */
+
+static void file_archscan_small(
+    int fd, char const *archive, scanback func, void *closure)
+{
+    struct fl_hdr fl_hdr;
+
+    struct {
+        struct ar_hdr hdr;
+        char pad[ 256 ];
+    } ar_hdr ;
+
+    char buf[ MAXJPATH ];
+    long offset;
+
+    if ( read( fd, (char *)&fl_hdr, FL_HSZ ) != FL_HSZ)
+        return;
+
+    sscanf( fl_hdr.fl_fstmoff, "%ld", &offset );
+
+    if ( DEBUG_BINDSCAN )
+        printf( "scan archive %s\n", archive );
+
+    while ( ( offset > 0 )
+           && ( lseek( fd, offset, 0 ) >= 0 )
+           && ( read( fd, &ar_hdr, sizeof( ar_hdr ) ) >= sizeof( ar_hdr.hdr ) ) )
+    {
+        long lar_date;
+        int  lar_namlen;
+
+        sscanf( ar_hdr.hdr.ar_namlen, "%d" , &lar_namlen );
+        sscanf( ar_hdr.hdr.ar_date  , "%ld", &lar_date   );
+        sscanf( ar_hdr.hdr.ar_nxtmem, "%ld", &offset     );
+
+        if ( !lar_namlen )
+            continue;
+
+        ar_hdr.hdr._ar_name.ar_name[ lar_namlen ] = '\0';
+
+        sprintf( buf, "%s(%s)", archive, ar_hdr.hdr._ar_name.ar_name );
+
+        (*func)( closure, buf, 1 /* time valid */, (time_t)lar_date );
+    }
+}
+
+/* Check for OS version which supports the big variant. */
+#ifdef AR_HSZ_BIG
+
+static void file_archscan_big(
+    int fd, char const *archive, scanback func, void *closure)
+{
+    struct fl_hdr_big fl_hdr;
+
+    struct {
+        struct ar_hdr_big hdr;
+        char pad[ 256 ];
+    } ar_hdr ;
+
+    char buf[ MAXJPATH ];
+    long long offset;
+
+    if ( read( fd, (char *)&fl_hdr, FL_HSZ_BIG) != FL_HSZ_BIG)
+        return;
+
+    sscanf( fl_hdr.fl_fstmoff, "%lld", &offset );
+
+    if ( DEBUG_BINDSCAN )
+        printf( "scan archive %s\n", archive );
+
+    while ( ( offset > 0 )
+           && ( lseek( fd, offset, 0 ) >= 0 )
+           && ( read( fd, &ar_hdr, sizeof( ar_hdr ) ) >= sizeof( ar_hdr.hdr ) ) )
+    {
+        long lar_date;
+        int  lar_namlen;
+
+        sscanf( ar_hdr.hdr.ar_namlen, "%d"  , &lar_namlen );
+        sscanf( ar_hdr.hdr.ar_date  , "%ld" , &lar_date   );
+        sscanf( ar_hdr.hdr.ar_nxtmem, "%lld", &offset     );
+
+        if ( !lar_namlen )
+            continue;
+
+        ar_hdr.hdr._ar_name.ar_name[ lar_namlen ] = '\0';
+
+        sprintf( buf, "%s(%s)", archive, ar_hdr.hdr._ar_name.ar_name );
+
+        (*func)( closure, buf, 1 /* time valid */, (time_t)lar_date );
+    }
+
+}
+
+#endif /* AR_HSZ_BIG */
+
+void file_archscan(char *archive, scanback func, void *closure)
+{
+    int fd;
+    char fl_magic[SAIAMAG];
+
+    if (( fd = open(archive, O_RDONLY, 0)) < 0)
+        return;
+
+    if (read( fd, fl_magic, SAIAMAG) != SAIAMAG
+       || lseek(fd, 0, SEEK_SET) == -1)
+    {
+        close(fd);
+        return;
+    }
+
+    if (strncmp(AIAMAG, fl_magic, SAIAMAG) == 0)
+    {
+        /* read small variant */
+        file_archscan_small(fd, archive, func, closure);
+    }
+#ifdef AR_HSZ_BIG
+    else if (strncmp(AIAMAGBIG, fl_magic, SAIAMAG) == 0)
+    {
+        /* read big variant */
+        file_archscan_big(fd, archive, func, closure);
+    }
+#endif
+
+    close( fd );
+}
+
+# endif /* AIAMAG - RS6000 AIX */
+
+# endif /* USE_FILEUNIX */