/mandos/trunk

To get this branch, use:
bzr branch http://bzr.recompile.se/loggerhead/mandos/trunk

« back to all changes in this revision

Viewing changes to plugin-runner.c

  • Committer: teddy at recompile
  • Date: 2020-07-04 08:59:37 UTC
  • Revision ID: teddy@recompile.se-20200704085937-r495zb32nfng9lnt
In initramfs-tools boots, only use setsid when available

* initramfs-tools-script: If available, use setsid to start
  mandos-to-cryptroot-unlock.

Show diffs side-by-side

added added

removed removed

Lines of Context:
plugin-runner.c
26
26
#define _GNU_SOURCE             /* TEMP_FAILURE_RETRY(), getline(),
27
27
                                   O_CLOEXEC, pipe2() */
28
28
#include <stddef.h>             /* size_t, NULL */
29
 
#include <stdlib.h>             /* malloc(), exit(), EXIT_SUCCESS,
30
 
                                   realloc() */
 
29
#include <stdlib.h>             /* malloc(), reallocarray(), realloc(),
 
30
                                   EXIT_SUCCESS, exit() */
31
31
#include <stdbool.h>            /* bool, true, false */
32
32
#include <stdio.h>              /* fileno(), fprintf(),
33
33
                                   stderr, STDOUT_FILENO, fclose() */
179
179
  /* Resize the pointed-to array to hold one more pointer */
180
180
  char **new_array = NULL;
181
181
  do {
182
 
    new_array = realloc(*array, sizeof(char *)
183
 
                        * (size_t) ((*len) + 2));
 
182
#if defined(__GLIBC_PREREQ) and __GLIBC_PREREQ(2, 26)
 
183
    new_array = reallocarray(*array, (size_t)((*len) + 2),
 
184
                             sizeof(char *));
 
185
#else
 
186
    if(((size_t)((*len) + 2)) > (SIZE_MAX / sizeof(char *))){
 
187
      /* overflow */
 
188
      new_array = NULL;
 
189
      errno = ENOMEM;
 
190
    } else {
 
191
      new_array = realloc(*array, (size_t)((*len) + 2)
 
192
                          * sizeof(char *));
 
193
    }
 
194
#endif
184
195
  } while(new_array == NULL and errno == EINTR);
185
196
  /* Malloc check */
186
197
  if(new_array == NULL){
586
597
      if(arg[0] == '\0'){
587
598
        break;
588
599
      }
589
 
      /* FALLTHROUGH */
 
600
#if __GNUC__ >= 7
 
601
      __attribute__((fallthrough));
 
602
#else
 
603
          /* FALLTHROUGH */
 
604
#endif
590
605
    default:
591
606
      return ARGP_ERR_UNKNOWN;
592
607
    }
704
719
        
705
720
        custom_argc += 1;
706
721
        {
707
 
          char **new_argv = realloc(custom_argv, sizeof(char *)
708
 
                                    * ((size_t)custom_argc + 1));
 
722
#if defined(__GLIBC_PREREQ) and __GLIBC_PREREQ(2, 26)
 
723
          char **new_argv = reallocarray(custom_argv, (size_t)custom_argc + 1,
 
724
                                         sizeof(char *));
 
725
#else
 
726
          char **new_argv = NULL;
 
727
          if(((size_t)custom_argc + 1) > (SIZE_MAX / sizeof(char *))){
 
728
            /* overflow */
 
729
            errno = ENOMEM;
 
730
          } else {
 
731
            new_argv = realloc(custom_argv, ((size_t)custom_argc + 1)
 
732
                               * sizeof(char *));
 
733
          }
 
734
#endif
709
735
          if(new_argv == NULL){
710
 
            error(0, errno, "realloc");
 
736
            error(0, errno, "reallocarray");
711
737
            exitstatus = EX_OSERR;
712
738
            free(new_arg);
713
739
            free(org_line);