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  • Committer: Teddy Hogeborn
  • Date: 2019-08-05 21:14:05 UTC
  • Revision ID: teddy@recompile.se-20190805211405-9m6hecekaihpttz9
Override lintian warnings about upgrading from old versions

There are some really things which are imperative that we fix in case
someone were to upgrade from a really old version.  We want to keep
these fixes in the postinst maintainer scripts, even though lintian
complains about such old upgrades not being supported by Debian in
general.  We prefer the code being there, for the sake of the users.

* debian/mandos-client.lintian-overrides
  (maintainer-script-supports-ancient-package-version): New.
  debian/mandos.lintian-overrides
  (maintainer-script-supports-ancient-package-version): - '' -

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plugin-runner.c
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/*
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 * Mandos plugin runner - Run Mandos plugins
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 *
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 * Copyright © 2008-2020 Teddy Hogeborn
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 * Copyright © 2008-2020 Björn Påhlsson
 
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 * Copyright © 2008-2018 Teddy Hogeborn
 
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 * Copyright © 2008-2018 Björn Påhlsson
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 * 
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 * This file is part of Mandos.
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 * 
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#define _GNU_SOURCE             /* TEMP_FAILURE_RETRY(), getline(),
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                                   O_CLOEXEC, pipe2() */
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#include <stddef.h>             /* size_t, NULL */
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#include <stdlib.h>             /* malloc(), reallocarray(), realloc(),
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                                   EXIT_SUCCESS, exit() */
 
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#include <stdlib.h>             /* malloc(), exit(), EXIT_SUCCESS,
 
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                                   realloc() */
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#include <stdbool.h>            /* bool, true, false */
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#include <stdio.h>              /* fileno(), fprintf(),
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                                   stderr, STDOUT_FILENO, fclose() */
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  /* Resize the pointed-to array to hold one more pointer */
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  char **new_array = NULL;
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  do {
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#if defined(__GLIBC_PREREQ) and __GLIBC_PREREQ(2, 26)
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    new_array = reallocarray(*array, (size_t)((*len) + 2),
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                             sizeof(char *));
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#else
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    if(((size_t)((*len) + 2)) > (SIZE_MAX / sizeof(char *))){
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      /* overflow */
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      new_array = NULL;
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      errno = ENOMEM;
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    } else {
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      new_array = realloc(*array, (size_t)((*len) + 2)
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                          * sizeof(char *));
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    }
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#endif
 
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    new_array = realloc(*array, sizeof(char *)
 
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                        * (size_t) ((*len) + 2));
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  } while(new_array == NULL and errno == EINTR);
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  /* Malloc check */
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  if(new_array == NULL){
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        custom_argc += 1;
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        {
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#if defined(__GLIBC_PREREQ) and __GLIBC_PREREQ(2, 26)
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          char **new_argv = reallocarray(custom_argv, (size_t)custom_argc + 1,
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                                         sizeof(char *));
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#else
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          char **new_argv = NULL;
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          if(((size_t)custom_argc + 1) > (SIZE_MAX / sizeof(char *))){
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            /* overflow */
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            errno = ENOMEM;
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          } else {
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            new_argv = realloc(custom_argv, ((size_t)custom_argc + 1)
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                               * sizeof(char *));
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          }
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#endif
 
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          char **new_argv = realloc(custom_argv, sizeof(char *)
 
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                                    * ((size_t)custom_argc + 1));
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          if(new_argv == NULL){
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            error(0, errno, "reallocarray");
 
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            error(0, errno, "realloc");
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            exitstatus = EX_OSERR;
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            free(new_arg);
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            free(org_line);