mailinfo: re-fix MIME multipart boundary parsing

Recent changes to is_multipart_boundary() caused git-mailinfo to segfault.
The reason was after handling the end of the boundary the code tried to look
for another boundary.  Because the boundary list was empty, dereferencing
the pointer to the top of the boundary caused the program to go boom.

The fix is to check to see if the list is empty and if so go on its merry
way instead of looking for another boundary.

I also fixed a couple of increments and decrements that didn't look correct
relating to content_top.

The boundary test case was updated to catch future problems like this again.

Signed-off-by: Don Zickus <dzickus@redhat.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2 files changed
tree: 7ff6e57895095b4ef499bd18c8d665e43a457103
  1. arm/
  2. compat/
  3. contrib/
  4. Documentation/
  5. git-gui/
  6. gitk-git/
  7. gitweb/
  8. mozilla-sha1/
  9. perl/
  10. ppc/
  11. t/
  12. templates/
  13. xdiff/
  14. .gitattributes
  15. .gitignore
  16. .mailmap
  17. abspath.c
  18. alias.c
  19. alloc.c
  20. archive-tar.c
  21. archive-zip.c
  22. archive.c
  23. archive.h
  24. attr.c
  25. attr.h
  26. base85.c
  27. blob.c
  28. blob.h
  29. branch.c
  30. branch.h
  31. builtin-add.c
  32. builtin-annotate.c
  33. builtin-apply.c
  34. builtin-archive.c
  35. builtin-blame.c
  36. builtin-branch.c
  37. builtin-bundle.c
  38. builtin-cat-file.c
  39. builtin-check-attr.c
  40. builtin-check-ref-format.c
  41. builtin-checkout-index.c
  42. builtin-checkout.c
  43. builtin-clean.c
  44. builtin-clone.c
  45. builtin-commit-tree.c
  46. builtin-commit.c
  47. builtin-config.c
  48. builtin-count-objects.c
  49. builtin-describe.c
  50. builtin-diff-files.c
  51. builtin-diff-index.c
  52. builtin-diff-tree.c
  53. builtin-diff.c
  54. builtin-fast-export.c
  55. builtin-fetch--tool.c
  56. builtin-fetch-pack.c
  57. builtin-fetch.c
  58. builtin-fmt-merge-msg.c
  59. builtin-for-each-ref.c
  60. builtin-fsck.c
  61. builtin-gc.c
  62. builtin-grep.c
  63. builtin-http-fetch.c
  64. builtin-init-db.c
  65. builtin-log.c
  66. builtin-ls-files.c
  67. builtin-ls-remote.c
  68. builtin-ls-tree.c
  69. builtin-mailinfo.c
  70. builtin-mailsplit.c
  71. builtin-merge-base.c
  72. builtin-merge-file.c
  73. builtin-merge-ours.c
  74. builtin-merge-recursive.c
  75. builtin-merge.c
  76. builtin-mv.c
  77. builtin-name-rev.c
  78. builtin-pack-objects.c
  79. builtin-pack-refs.c
  80. builtin-prune-packed.c
  81. builtin-prune.c
  82. builtin-push.c
  83. builtin-read-tree.c
  84. builtin-reflog.c
  85. builtin-remote.c
  86. builtin-rerere.c
  87. builtin-reset.c
  88. builtin-rev-list.c
  89. builtin-rev-parse.c
  90. builtin-revert.c
  91. builtin-rm.c
  92. builtin-send-pack.c
  93. builtin-shortlog.c
  94. builtin-show-branch.c
  95. builtin-show-ref.c
  96. builtin-stripspace.c
  97. builtin-symbolic-ref.c
  98. builtin-tag.c
  99. builtin-tar-tree.c
  100. builtin-unpack-objects.c
  101. builtin-update-index.c
  102. builtin-update-ref.c
  103. builtin-upload-archive.c
  104. builtin-verify-pack.c
  105. builtin-verify-tag.c
  106. builtin-write-tree.c
  107. builtin.h
  108. bundle.c
  109. bundle.h
  110. cache-tree.c
  111. cache-tree.h
  112. cache.h
  113. check-builtins.sh
  114. check-racy.c
  115. check_bindir
  116. color.c
  117. color.h
  118. combine-diff.c
  119. command-list.txt
  120. commit.c
  121. commit.h
  122. config.c
  123. config.mak.in
  124. configure.ac
  125. connect.c
  126. convert.c
  127. copy.c
  128. COPYING
  129. csum-file.c
  130. csum-file.h
  131. ctype.c
  132. daemon.c
  133. date.c
  134. decorate.c
  135. decorate.h
  136. delta.h
  137. diff-delta.c
  138. diff-lib.c
  139. diff-no-index.c
  140. diff.c
  141. diff.h
  142. diffcore-break.c
  143. diffcore-delta.c
  144. diffcore-order.c
  145. diffcore-pickaxe.c
  146. diffcore-rename.c
  147. diffcore.h
  148. dir.c
  149. dir.h
  150. dump-cache-tree.c
  151. editor.c
  152. entry.c
  153. environment.c
  154. exec_cmd.c
  155. exec_cmd.h
  156. fast-import.c
  157. fetch-pack.h
  158. fixup-builtins
  159. fsck.c
  160. fsck.h
  161. generate-cmdlist.sh
  162. git-add--interactive.perl
  163. git-am.sh
  164. git-archimport.perl
  165. git-bisect.sh
  166. git-compat-util.h
  167. git-cvsexportcommit.perl
  168. git-cvsimport.perl
  169. git-cvsserver.perl
  170. git-filter-branch.sh
  171. git-instaweb.sh
  172. git-lost-found.sh
  173. git-merge-octopus.sh
  174. git-merge-one-file.sh
  175. git-merge-resolve.sh
  176. git-mergetool.sh
  177. git-parse-remote.sh
  178. git-pull.sh
  179. git-quiltimport.sh
  180. git-rebase--interactive.sh
  181. git-rebase.sh
  182. git-relink.perl
  183. git-repack.sh
  184. git-request-pull.sh
  185. git-send-email.perl
  186. git-sh-setup.sh
  187. git-stash.sh
  188. git-submodule.sh
  189. git-svn.perl
  190. GIT-VERSION-GEN
  191. git-web--browse.sh
  192. git.c
  193. git.spec.in
  194. graph.c
  195. graph.h
  196. grep.c
  197. grep.h
  198. hash-object.c
  199. hash.c
  200. hash.h
  201. help.c
  202. http-push.c
  203. http-walker.c
  204. http.c
  205. http.h
  206. ident.c
  207. imap-send.c
  208. index-pack.c
  209. INSTALL
  210. interpolate.c
  211. interpolate.h
  212. list-objects.c
  213. list-objects.h
  214. ll-merge.c
  215. ll-merge.h
  216. lockfile.c
  217. log-tree.c
  218. log-tree.h
  219. mailmap.c
  220. mailmap.h
  221. Makefile
  222. match-trees.c
  223. merge-file.c
  224. merge-index.c
  225. merge-recursive.h
  226. merge-tree.c
  227. mktag.c
  228. mktree.c
  229. name-hash.c
  230. object.c
  231. object.h
  232. pack-check.c
  233. pack-redundant.c
  234. pack-refs.c
  235. pack-refs.h
  236. pack-revindex.c
  237. pack-revindex.h
  238. pack-write.c
  239. pack.h
  240. pager.c
  241. parse-options.c
  242. parse-options.h
  243. patch-delta.c
  244. patch-id.c
  245. patch-ids.c
  246. patch-ids.h
  247. path.c
  248. pkt-line.c
  249. pkt-line.h
  250. pretty.c
  251. progress.c
  252. progress.h
  253. quote.c
  254. quote.h
  255. reachable.c
  256. reachable.h
  257. read-cache.c
  258. README
  259. receive-pack.c
  260. reflog-walk.c
  261. reflog-walk.h
  262. refs.c
  263. refs.h
  264. remote.c
  265. remote.h
  266. rerere.c
  267. rerere.h
  268. revision.c
  269. revision.h
  270. run-command.c
  271. run-command.h
  272. send-pack.h
  273. server-info.c
  274. setup.c
  275. sha1-lookup.c
  276. sha1-lookup.h
  277. sha1_file.c
  278. sha1_name.c
  279. shallow.c
  280. shell.c
  281. shortlog.h
  282. show-index.c
  283. sideband.c
  284. sideband.h
  285. strbuf.c
  286. strbuf.h
  287. string-list.c
  288. string-list.h
  289. symlinks.c
  290. tag.c
  291. tag.h
  292. tar.h
  293. test-chmtime.c
  294. test-date.c
  295. test-delta.c
  296. test-genrandom.c
  297. test-match-trees.c
  298. test-parse-options.c
  299. test-path-utils.c
  300. test-sha1.c
  301. test-sha1.sh
  302. thread-utils.c
  303. thread-utils.h
  304. trace.c
  305. transport.c
  306. transport.h
  307. tree-diff.c
  308. tree-walk.c
  309. tree-walk.h
  310. tree.c
  311. tree.h
  312. unpack-file.c
  313. unpack-trees.c
  314. unpack-trees.h
  315. update-server-info.c
  316. upload-pack.c
  317. usage.c
  318. utf8.c
  319. utf8.h
  320. var.c
  321. walker.c
  322. walker.h
  323. wrapper.c
  324. write_or_die.c
  325. ws.c
  326. wt-status.c
  327. wt-status.h
  328. xdiff-interface.c
  329. xdiff-interface.h