- Add unmakeself 0.99, a tool to extract makeself archives.

PR:		ports/79398
Submitted by:	Jean-Yves Lefort <jylefort@brutele.be>

4 files changed, 296 insertions, 0 deletions

diff --git a/archivers/Makefile b/archivers/Makefile
index 3a33fa57909a..f1ce9d5643a4 100644
--- a/archivers/Makefile
+++ b/archivers/Makefile
@@ -90,6 +90,7 @@
     SUBDIR += unarj
     SUBDIR += undms
     SUBDIR += unlzx
+    SUBDIR += unmakeself
     SUBDIR += unrar
     SUBDIR += unshield
     SUBDIR += untar
diff --git a/archivers/unmakeself/Makefile b/archivers/unmakeself/Makefile
new file mode 100644
index 000000000000..af8e3225e3e4
--- /dev/null
+++ b/archivers/unmakeself/Makefile
@@ -0,0 +1,38 @@
+# New ports collection makefile for:	unmakeself
+# Date created:			31 Mar 2005
+# Whom:				Jean-Yves Lefort <jylefort@brutele.be>
+#
+# $FreeBSD$
+#
+
+PORTNAME=		unmakeself
+PORTVERSION=		0.99
+CATEGORIES=		archivers
+DISTFILES=
+
+MAINTAINER=		jylefort@brutele.be
+COMMENT=		Extract Makeself archives
+
+LDFLAGS=		-larchive -lbz2 -lz
+USE_GETOPT_LONG=	yes
+NO_WRKSUBDIR=		yes
+
+PLIST_FILES=		bin/unmakeself
+
+.include <bsd.port.pre.mk>
+
+.if ${OSVERSION} < 502103
+BUILD_DEPENDS+=		${LOCALBASE}/lib/libarchive.a:${PORTSDIR}/archivers/libarchive
+CPPFLAGS+=		-I${LOCALBASE}/include
+LDFLAGS+=		-L${LOCALBASE}/lib
+.endif
+
+do-build:
+	${CC} ${CFLAGS} ${CPPFLAGS} -o ${WRKSRC}/unmakeself \
+		${FILESDIR}/unmakeself.c ${LDFLAGS}
+
+do-install:
+	${MKDIR} ${PREFIX}/bin
+	${INSTALL_PROGRAM} ${WRKSRC}/unmakeself ${PREFIX}/bin
+
+.include <bsd.port.post.mk>
diff --git a/archivers/unmakeself/files/unmakeself.c b/archivers/unmakeself/files/unmakeself.c
new file mode 100644
index 000000000000..10720c6e18e2
--- /dev/null
+++ b/archivers/unmakeself/files/unmakeself.c
@@ -0,0 +1,252 @@
+/*
+ * unmakeself - extracts Makeself archives
+ *
+ * Copyright (C) 2005 Jean-Yves Lefort
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of Jean-Yves Lefort nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
+ * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
+ * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <locale.h>
+#include <string.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <sys/types.h>
+#include <sys/uio.h>
+#include <unistd.h>
+#include <getopt.h>
+#include <archive.h>
+
+static char *self = NULL;				/* program name */
+static int extract_flags = ARCHIVE_EXTRACT_TIME;	/* bsdtar default */
+
+static void unmakeself_print_help (void);
+static void unmakeself_print_version (void);
+static void unmakeself_extract (const char *filename);
+
+int
+main (int argc, char **argv)
+{
+  const struct option options[] = {
+    { "help",			no_argument,	NULL, '?'	},
+    { "version",		no_argument,	NULL, 'v'	},
+    { "keep-old-files",		no_argument,	NULL, 'k'	},
+    { "modification-time",	no_argument,	NULL, 'm'	},
+    { "no-same-owner",		no_argument,	NULL, 'o'	},
+    { "preserve-permissions",	no_argument,	NULL, 'p'	},
+    { "unlink",			no_argument,	NULL, 'U'	},
+    { "unlink-first",		no_argument,	NULL, 'U'	},
+    { NULL,			0,		NULL, 0		}
+  };
+  int c;
+
+  self = argc > 0 ? strdup(argv[0]) : "unmakeself";
+  setlocale(LC_ALL, "");
+
+  if (geteuid() == 0)		/* bsdtar does this */
+    extract_flags |= ARCHIVE_EXTRACT_OWNER;
+
+  while ((c = getopt_long(argc, argv, "?vkmpUx", options, NULL)) != -1)
+    switch (c)
+      {
+      case '?':
+	unmakeself_print_help();
+	exit(0);
+	break;
+
+      case 'v':
+	unmakeself_print_version();
+	exit(0);
+	break;
+
+      case 'k':			/* GNU tar, bsdtar */
+	extract_flags |= ARCHIVE_EXTRACT_NO_OVERWRITE;
+	break;
+
+      case 'm':			/* SUSv2, bsdtar */
+	extract_flags &= ~ARCHIVE_EXTRACT_TIME;
+	break;
+
+      case 'o':			/* bsdtar */
+	extract_flags &= ~ARCHIVE_EXTRACT_OWNER;
+	break;
+
+      case 'p':			/* GNU tar, star, bsdtar */
+	extract_flags |= ARCHIVE_EXTRACT_PERM;
+	extract_flags |= ARCHIVE_EXTRACT_ACL;
+	extract_flags |= ARCHIVE_EXTRACT_FFLAGS;
+	break;
+
+      case 'U':			/* GNU tar, bsdtar */
+	extract_flags |= ARCHIVE_EXTRACT_UNLINK;
+	break;
+
+      default:
+	abort();
+      }
+
+  argc -= optind;
+  argv += optind;
+
+  if (argc != 1)
+    {
+      fprintf(stderr, "%s: a file to extract must be specified\n", self);
+      exit(1);
+    }
+
+  unmakeself_extract(argv[0]);
+
+  /* on some systems, the return value of main() is ignored */
+  exit(0);
+
+  return 0;
+}
+
+static void
+unmakeself_print_help (void)
+{
+  printf("Synopsis:\n");
+  printf("  %s {-? | -v}\n", self);
+  printf("  %s [-kmopU] FILE\n", self);
+}
+
+static void
+unmakeself_print_version (void)
+{
+  printf("unmakeself version 0.99\n");
+  printf("Copyright (C) 2005 Jean-Yves Lefort\n");
+}
+
+static void
+unmakeself_extract (const char *filename)
+{
+  int fd;
+  char buf[4096];
+  int pos = 0;
+  int last_newline = -1;
+  int offset = -1;
+  int done = 0;
+  ssize_t len;
+
+  fd = open(filename, O_RDONLY);
+  if (fd < 0)
+    {
+      fprintf(stderr, "%s: unable to open %s: %s\n", self, filename, strerror(errno));
+      exit(1);
+    }
+
+  /*
+   * We find the start offset of the archive inside the shell script
+   * by locating the first non-printable character following a
+   * newline. The archive starts immediately after that newline.
+   */
+  while (! done && (len = read(fd, buf, sizeof(buf))) > 0)
+    {
+      int i;
+
+      for (i = 0; i < len; i++, pos++)
+	if (buf[i] == '\n')
+	  last_newline = pos;
+	else if (buf[i] != '\t' && (buf[i] < 32 || buf[i] > 126))
+	  {
+	    if (last_newline != -1)
+	      offset = last_newline + 1;
+	    
+	    done = 1;
+	    break;
+	  }
+    }
+
+  if (offset != -1)		/* offset found, extract using libarchive */
+    {
+      struct archive *archive;
+      struct archive_entry *entry;
+      int status;
+
+      if (lseek(fd, offset, SEEK_SET) < 0)
+	{
+	  fprintf(stderr, "%s: unable to seek into %s: %s\n", self, filename, strerror(errno));
+	  exit(1);
+	}
+      
+      archive = archive_read_new();
+
+      if (archive_read_support_compression_all(archive) != ARCHIVE_OK)
+	fprintf(stderr, "%s: warning: unable to support all compression formats: %s\n", self, archive_error_string(archive));
+      if (archive_read_support_format_all(archive) != ARCHIVE_OK)
+	fprintf(stderr, "%s: warning: unable to support all archive formats: %s\n", self, archive_error_string(archive));
+
+      /* same block size as DEFAULT_BYTES_PER_BLOCK in bsdtar.h */
+      if (archive_read_open_fd(archive, fd, 20 * 512) != ARCHIVE_OK)
+	{
+	  fprintf(stderr, "%s: unable to open %s with libarchive: %s\n", self, filename, archive_error_string(archive));
+	  exit(1);
+	}
+      
+      while ((status = archive_read_next_header(archive, &entry)) == ARCHIVE_OK)
+	if (archive_read_extract(archive, entry, extract_flags) != ARCHIVE_OK)
+	  {
+	    fprintf(stderr, "%s: unable to extract %s: %s\n", self, filename, archive_error_string(archive));
+	    exit(1);
+	  }
+
+      if (status != ARCHIVE_EOF)
+	{
+	  fprintf(stderr, "%s: unable to read next header of %s: %s\n", self, filename, archive_error_string(archive));
+	  exit(1);
+	}
+      
+      if (archive_read_close(archive) != ARCHIVE_OK)
+	{
+	  fprintf(stderr, "%s: unable to close %s with libarchive: %s\n", self, filename, archive_error_string(archive));
+	  exit(1);
+	}
+      
+      archive_read_finish(archive);
+    }
+  else
+    {
+      if (len >= 0)		/* EOF, or couldn't find start offset */
+	{
+	  fprintf(stderr, "%s: %s is not a valid Makeself archive\n", self, filename);
+	  exit(1);
+	}
+      else			/* read error */
+	{
+	  fprintf(stderr, "%s: unable to read %s: %s\n", self, filename, strerror(errno));
+	  exit(1);
+	}
+    }
+
+  if (close(fd) < 0)
+    {
+      fprintf(stderr, "%s: unable to close %s: %s\n", self, filename, strerror(errno));
+      exit(1);
+    }
+}
diff --git a/archivers/unmakeself/pkg-descr b/archivers/unmakeself/pkg-descr
new file mode 100644
index 000000000000..4abfc72b4e18
--- /dev/null
+++ b/archivers/unmakeself/pkg-descr
@@ -0,0 +1,5 @@
+unmakeself is a program for extracting Makeself archives without
+having to run the self-extracting shell script.
+
+- Jean-Yves Lefort
+jylefort@brutele.be