Adding upstream version 1.19.8.upstream/1.19.8upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 305 insertions, 0 deletions

diff --git a/dpkg-deb/info.c b/dpkg-deb/info.c
new file mode 100644
index 0000000..794eeb0
--- /dev/null
+++ b/dpkg-deb/info.c
@@ -0,0 +1,305 @@
+/*
+ * dpkg-deb - construction and deconstruction of *.deb archives
+ * info.c - providing information
+ *
+ * Copyright © 1994,1995 Ian Jackson <ijackson@chiark.greenend.org.uk>
+ * Copyright © 2001 Wichert Akkerman
+ * Copyright © 2007-2015 Guillem Jover <guillem@debian.org>
+ *
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <config.h>
+#include <compat.h>
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/wait.h>
+
+#include <errno.h>
+#include <limits.h>
+#include <string.h>
+#include <fcntl.h>
+#include <dirent.h>
+#include <unistd.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+#include <dpkg/i18n.h>
+#include <dpkg/c-ctype.h>
+#include <dpkg/dpkg.h>
+#include <dpkg/dpkg-db.h>
+#include <dpkg/parsedump.h>
+#include <dpkg/pkg-format.h>
+#include <dpkg/buffer.h>
+#include <dpkg/path.h>
+#include <dpkg/options.h>
+
+#include "dpkg-deb.h"
+
+static void cu_info_prepare(int argc, void **argv) {
+  char *dir;
+
+  dir = argv[0];
+  path_remove_tree(dir);
+  free(dir);
+}
+
+static void info_prepare(const char *const **argvp,
+                         const char **debarp,
+                         const char **dirp,
+                         int admininfo) {
+  char *dbuf;
+
+  *debarp= *(*argvp)++;
+  if (!*debarp) badusage(_("--%s needs a .deb filename argument"),cipaction->olong);
+
+  dbuf = mkdtemp(path_make_temp_template("dpkg-deb"));
+  if (!dbuf)
+    ohshite(_("unable to create temporary directory"));
+  *dirp = dbuf;
+
+  push_cleanup(cu_info_prepare, -1, 1, (void *)dbuf);
+  extracthalf(*debarp, dbuf, DPKG_TAR_EXTRACT | DPKG_TAR_NOMTIME, admininfo);
+}
+
+static int ilist_select(const struct dirent *de) {
+  return strcmp(de->d_name,".") && strcmp(de->d_name,"..");
+}
+
+static void
+info_spew(const char *debar, const char *dir, const char *const *argv)
+{
+  struct dpkg_error err;
+  const char *component;
+  struct varbuf controlfile = VARBUF_INIT;
+  int fd;
+  int re= 0;
+
+  while ((component = *argv++) != NULL) {
+    varbuf_reset(&controlfile);
+    varbuf_printf(&controlfile, "%s/%s", dir, component);
+
+    fd = open(controlfile.buf, O_RDONLY);
+    if (fd >= 0) {
+      if (fd_fd_copy(fd, 1, -1, &err) < 0)
+        ohshit(_("cannot extract control file '%s' from '%s': %s"),
+               controlfile.buf, debar, err.str);
+      close(fd);
+    } else if (errno == ENOENT) {
+      notice(_("'%.255s' contains no control component '%.255s'"),
+             debar, component);
+      re++;
+    } else {
+      ohshite(_("open component '%.255s' (in %.255s) failed in an unexpected way"),
+              component, dir);
+    }
+  }
+  varbuf_destroy(&controlfile);
+
+  if (re > 0)
+    ohshit(P_("%d requested control component is missing",
+              "%d requested control components are missing", re), re);
+}
+
+static void
+info_list(const char *debar, const char *dir)
+{
+  char interpreter[INTERPRETER_MAX+1], *p;
+  int il, lines;
+  struct varbuf controlfile = VARBUF_INIT;
+  struct dirent **cdlist, *cdep;
+  int cdn, n;
+  FILE *cc;
+  struct stat stab;
+  int c;
+
+  cdn = scandir(dir, &cdlist, &ilist_select, alphasort);
+  if (cdn == -1)
+    ohshite(_("cannot scan directory '%.255s'"), dir);
+
+  for (n = 0; n < cdn; n++) {
+    cdep = cdlist[n];
+
+    varbuf_reset(&controlfile);
+    varbuf_printf(&controlfile, "%s/%s", dir, cdep->d_name);
+
+    if (stat(controlfile.buf, &stab))
+      ohshite(_("cannot stat '%.255s' (in '%.255s')"), cdep->d_name, dir);
+    if (S_ISREG(stab.st_mode)) {
+      cc = fopen(controlfile.buf, "r");
+      if (!cc)
+        ohshite(_("cannot open '%.255s' (in '%.255s')"), cdep->d_name, dir);
+      lines = 0;
+      interpreter[0] = '\0';
+      if (getc(cc) == '#') {
+        if (getc(cc) == '!') {
+          while ((c= getc(cc))== ' ');
+          p=interpreter; *p++='#'; *p++='!'; il=2;
+          while (il < INTERPRETER_MAX && !c_isspace(c) && c != EOF) {
+            *p++= c; il++; c= getc(cc);
+          }
+          *p = '\0';
+          if (c=='\n') lines++;
+        }
+      }
+      while ((c= getc(cc))!= EOF) { if (c == '\n') lines++; }
+      if (ferror(cc))
+        ohshite(_("failed to read '%.255s' (in '%.255s')"), cdep->d_name, dir);
+      fclose(cc);
+      printf(_(" %7jd bytes, %5d lines   %c  %-20.127s %.127s\n"),
+             (intmax_t)stab.st_size, lines,
+             (S_IXUSR & stab.st_mode) ? '*' : ' ',
+             cdep->d_name, interpreter);
+    } else {
+      printf(_("     not a plain file          %.255s\n"), cdep->d_name);
+    }
+    free(cdep);
+  }
+  free(cdlist);
+
+  varbuf_reset(&controlfile);
+  varbuf_printf(&controlfile, "%s/%s", dir, CONTROLFILE);
+  cc = fopen(controlfile.buf, "r");
+  if (!cc) {
+    if (errno != ENOENT)
+      ohshite(_("failed to read '%.255s' (in '%.255s')"), CONTROLFILE, dir);
+    warning(_("no 'control' file in control archive!"));
+  } else {
+    lines= 1;
+    while ((c= getc(cc))!= EOF) {
+      if (lines)
+        putc(' ', stdout);
+      putc(c, stdout);
+      lines= c=='\n';
+    }
+    if (!lines)
+      putc('\n', stdout);
+
+    if (ferror(cc))
+      ohshite(_("failed to read '%.255s' (in '%.255s')"), CONTROLFILE, dir);
+    fclose(cc);
+  }
+
+  m_output(stdout, _("<standard output>"));
+  varbuf_destroy(&controlfile);
+}
+
+static void
+info_field(const char *debar, const char *dir, const char *const *fields,
+           enum fwriteflags fieldflags)
+{
+  char *controlfile;
+  struct varbuf str = VARBUF_INIT;
+  struct pkginfo *pkg;
+  int i;
+
+  controlfile = str_fmt("%s/%s", dir, CONTROLFILE);
+  parsedb(controlfile, pdb_parse_binary | pdb_ignore_archives, &pkg);
+  free(controlfile);
+
+  for (i = 0; fields[i]; i++) {
+    const struct fieldinfo *field;
+    const struct arbitraryfield *arbfield;
+
+    varbuf_reset(&str);
+    field = find_field_info(fieldinfos, fields[i]);
+    if (field) {
+      field->wcall(&str, pkg, &pkg->available, fieldflags, field);
+    } else {
+      arbfield = find_arbfield_info(pkg->available.arbs, fields[i]);
+      if (arbfield)
+        varbuf_add_arbfield(&str, arbfield, fieldflags);
+    }
+    varbuf_end_str(&str);
+
+    if (fieldflags & fw_printheader)
+      printf("%s", str.buf);
+    else
+      printf("%s\n", str.buf);
+  }
+
+  m_output(stdout, _("<standard output>"));
+
+  varbuf_destroy(&str);
+}
+
+int
+do_showinfo(const char *const *argv)
+{
+  const char *debar, *dir;
+  char *controlfile;
+  struct dpkg_error err;
+  struct pkginfo *pkg;
+  struct pkg_format_node *fmt;
+
+  fmt = pkg_format_parse(showformat, &err);
+  if (!fmt)
+    ohshit(_("error in show format: %s"), err.str);
+
+  info_prepare(&argv, &debar, &dir, 1);
+
+  controlfile  = str_fmt("%s/%s", dir, CONTROLFILE);
+  parsedb(controlfile, pdb_parse_binary | pdb_ignore_archives, &pkg);
+  pkg_format_show(fmt, pkg, &pkg->available);
+  pkg_format_free(fmt);
+  free(controlfile);
+
+  return 0;
+}
+
+int
+do_info(const char *const *argv)
+{
+  const char *debar, *dir;
+
+  if (*argv && argv[1]) {
+    info_prepare(&argv, &debar, &dir, 1);
+    info_spew(debar, dir, argv);
+  } else {
+    info_prepare(&argv, &debar, &dir, 2);
+    info_list(debar, dir);
+  }
+
+  return 0;
+}
+
+int
+do_field(const char *const *argv)
+{
+  const char *debar, *dir;
+
+  info_prepare(&argv, &debar, &dir, 1);
+  if (*argv) {
+    info_field(debar, dir, argv, argv[1] != NULL ? fw_printheader : 0);
+  } else {
+    static const char *const controlonly[] = { CONTROLFILE, NULL };
+    info_spew(debar, dir, controlonly);
+  }
+
+  return 0;
+}
+
+int
+do_contents(const char *const *argv)
+{
+  const char *debar = *argv++;
+
+  if (debar == NULL || *argv)
+    badusage(_("--%s takes exactly one argument"), cipaction->olong);
+  extracthalf(debar, NULL, DPKG_TAR_LIST, 0);
+
+  return 0;
+}