Fix getgroups() with zero size parameter (Kirill Shutemov).

According to man page getgroups(2):

If size is zero, list is not modified, but the total number of
supplementary group IDs for the process is returned.

Signed-off-by: Kirill A. Shutemov <kirill@shutemov.name>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5266 c046a42c-6fe2-441c-8c8c-71466251a162
1 file changed
tree: e2bc1362b82807cd7ae10939bd6c51e4366d99f9
  1. audio/
  2. darwin-user/
  3. fpu/
  4. hw/
  5. keymaps/
  6. linux-user/
  7. pc-bios/
  8. slirp/
  9. target-alpha/
  10. target-arm/
  11. target-cris/
  12. target-i386/
  13. target-m68k/
  14. target-mips/
  15. target-ppc/
  16. target-sh4/
  17. target-sparc/
  18. tcg/
  19. tests/
  20. .gitignore
  21. a.out.h
  22. aes.c
  23. aes.h
  24. alpha-dis.c
  25. alpha.ld
  26. arm-dis.c
  27. arm-semi.c
  28. arm.ld
  29. block-bochs.c
  30. block-cloop.c
  31. block-cow.c
  32. block-dmg.c
  33. block-nbd.c
  34. block-parallels.c
  35. block-qcow.c
  36. block-qcow2.c
  37. block-raw-posix.c
  38. block-raw-win32.c
  39. block-vmdk.c
  40. block-vpc.c
  41. block-vvfat.c
  42. block.c
  43. block.h
  44. block_int.h
  45. bswap.h
  46. Changelog
  47. check_ops.sh
  48. cocoa.m
  49. compatfd.c
  50. compatfd.h
  51. configure
  52. console.c
  53. console.h
  54. COPYING
  55. COPYING.LIB
  56. cpu-all.h
  57. cpu-defs.h
  58. cpu-exec.c
  59. cris-dis.c
  60. curses.c
  61. curses_keys.h
  62. cutils.c
  63. d3des.c
  64. d3des.h
  65. dis-asm.h
  66. disas.c
  67. disas.h
  68. dyngen-exec.h
  69. dyngen.c
  70. elf.h
  71. elf_ops.h
  72. exec-all.h
  73. exec.c
  74. gdbstub.c
  75. gdbstub.h
  76. gen-icount.h
  77. host-utils.c
  78. host-utils.h
  79. hostregs_helper.h
  80. hpet.h
  81. hppa-dis.c
  82. hppa.ld
  83. i386-dis.c
  84. i386.ld
  85. ia64.ld
  86. keymaps.c
  87. kqemu.c
  88. kqemu.h
  89. LICENSE
  90. loader.c
  91. m68k-dis.c
  92. m68k-semi.c
  93. m68k.ld
  94. MAINTAINERS
  95. Makefile
  96. Makefile.target
  97. mips-dis.c
  98. mips.ld
  99. mipsel.ld
  100. monitor.c
  101. nbd.c
  102. nbd.h
  103. net-checksum.c
  104. net.h
  105. osdep.c
  106. osdep.h
  107. ppc-dis.c
  108. ppc.ld
  109. ppc64.ld
  110. qemu-binfmt-conf.sh
  111. qemu-char.h
  112. qemu-common.h
  113. qemu-doc.texi
  114. qemu-img.c
  115. qemu-img.texi
  116. qemu-lock.h
  117. qemu-log.h
  118. qemu-malloc.c
  119. qemu-nbd.c
  120. qemu-nbd.texi
  121. qemu-tech.texi
  122. qemu-timer.h
  123. qemu-tool.c
  124. qemu_socket.h
  125. readline.c
  126. README
  127. s390-dis.c
  128. s390.ld
  129. sdl.c
  130. sdl_keysym.h
  131. sh4-dis.c
  132. softmmu-semi.h
  133. softmmu_defs.h
  134. softmmu_exec.h
  135. softmmu_header.h
  136. softmmu_template.h
  137. sparc-dis.c
  138. sparc.ld
  139. sparc64.ld
  140. sys-queue.h
  141. sysemu.h
  142. tap-win32.c
  143. texi2pod.pl
  144. thunk.c
  145. thunk.h
  146. TODO
  147. translate-all.c
  148. uboot_image.h
  149. usb-linux.c
  150. VERSION
  151. vgafont.h
  152. vl.c
  153. vnc.c
  154. vnc_keysym.h
  155. vnchextile.h
  156. x86_64.ld
  157. x_keymap.c