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qemu / qemu / 4a1e6bce2308b720d79d5ea0a3d24501c89bd80c
commit4a1e6bce2308b720d79d5ea0a3d24501c89bd80c[log] [tgz]
authorZach Reizner <zachr@google.com>Fri Mar 26 22:11:16 2021 -0400
committerLaurent Vivier <laurent@vivier.eu>Sat Mar 27 16:48:45 2021 +0100
tree5a37c203e8888dd5eb15f2f1e26be5e74d9c6e94
parent23fff7a17f47420797ac6480147941612152a9ad [diff]
linux-user: allow NULL msg in recvfrom

The kernel allows a NULL msg in recvfrom so that he size of the next
message may be queried before allocating a correctly sized buffer. This
change allows the syscall translator to pass along the NULL msg pointer
instead of returning early with EFAULT.

Signed-off-by: Zach Reizner <zachr@google.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <CAFNex=DvFCq=AQf+=19fTfw-T8eZZT=3NnFFm2JMFvVr5QgQyA@mail.gmail.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
1 file changed
tree: 5a37c203e8888dd5eb15f2f1e26be5e74d9c6e94
  1. .github/
  2. .gitlab-ci.d/
  3. accel/
  4. audio/
  5. authz/
  6. backends/
  7. block/
  8. bsd-user/
  9. chardev/
  10. contrib/
  11. crypto/
  12. default-configs/
  13. disas/
  14. docs/
  15. dump/
  16. fpu/
  17. fsdev/
  18. gdb-xml/
  19. hw/
  20. include/
  21. io/
  22. libdecnumber/
  23. linux-headers/
  24. linux-user/
  25. migration/
  26. monitor/
  27. nbd/
  28. net/
  29. pc-bios/
  30. plugins/
  31. po/
  32. python/
  33. qapi/
  34. qga/
  35. qobject/
  36. qom/
  37. replay/
  38. roms/
  39. scripts/
  40. scsi/
  41. semihosting/
  42. softmmu/
  43. storage-daemon/
  44. stubs/
  45. subprojects/
  46. target/
  47. tcg/
  48. tests/
  49. tools/
  50. trace/
  51. ui/
  52. util/
  53. capstone
  54. dtc
  55. meson
  56. slirp
  57. .cirrus.yml
  58. .dir-locals.el
  59. .editorconfig
  60. .exrc
  61. .gdbinit
  62. .gitattributes
  63. .gitignore
  64. .gitlab-ci.yml
  65. .gitmodules
  66. .gitpublish
  67. .mailmap
  68. .patchew.yml
  69. .readthedocs.yml
  70. .travis.yml
  71. block.c
  72. blockdev-nbd.c
  73. blockdev.c
  74. blockjob.c
  75. configure
  76. COPYING
  77. COPYING.LIB
  78. cpu.c
  79. cpus-common.c
  80. disas.c
  81. gdbstub.c
  82. gitdm.config
  83. hmp-commands-info.hx
  84. hmp-commands.hx
  85. iothread.c
  86. job-qmp.c
  87. job.c
  88. Kconfig
  89. Kconfig.host
  90. LICENSE
  91. MAINTAINERS
  92. Makefile
  93. memory_ldst.c.inc
  94. meson.build
  95. meson_options.txt
  96. module-common.c
  97. os-posix.c
  98. os-win32.c
  99. page-vary-common.c
  100. page-vary.c
  101. qemu-bridge-helper.c
  102. qemu-edid.c
  103. qemu-img-cmds.hx
  104. qemu-img.c
  105. qemu-io-cmds.c
  106. qemu-io.c
  107. qemu-keymap.c
  108. qemu-nbd.c
  109. qemu-options-wrapper.h
  110. qemu-options.h
  111. qemu-options.hx
  112. qemu.nsi
  113. qemu.sasl
  114. README.rst
  115. replication.c
  116. replication.h
  117. thunk.c
  118. trace-events
  119. VERSION
  120. version.rc