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fix a buffer overflow

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git-svn-id: svn://katsu.triplehelix.org/dgamelaunch/trunk@112 db0b04b0-f4d1-0310-9a6d-de3e77497b0e
This commit is contained in:
Joshua Kwan 2004-01-06 19:04:07 +00:00
parent 64467ae41d
commit 20a824b932
1 changed files with 4 additions and 3 deletions
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7
nh343-simple_mail.diff
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@ -77,7 +77,7 @@ diff -urN orig/nethack-3.4.3/src/mail.c nethack-3.4.3/src/mail.c
return; return;
laststattime = moves; laststattime = moves;
@@ -501,9 +509,67 @@ @@ -501,9 +509,68 @@
readmail(otmp) readmail(otmp)
struct obj *otmp; struct obj *otmp;
{ {
@ -89,7 +89,7 @@ diff -urN orig/nethack-3.4.3/src/mail.c nethack-3.4.3/src/mail.c
+ if (iflags.simplemail) + if (iflags.simplemail)
+ { + {
+ FILE* mb = fopen(mailbox, "r"); + FILE* mb = fopen(mailbox, "r");
+ char curline[80], *msg; + char curline[102], *msg;
+ boolean seen_one_already = FALSE; + boolean seen_one_already = FALSE;
+ struct flock fl = { 0 }; + struct flock fl = { 0 };
+ +
@ -107,7 +107,7 @@ diff -urN orig/nethack-3.4.3/src/mail.c nethack-3.4.3/src/mail.c
+ +
+ errno = 0; + errno = 0;
+ +
+ while (fgets(curline, 80, mb) != NULL) + while (fgets(curline, 102, mb) != NULL)
+ { + {
+ fl.l_type = F_UNLCK; + fl.l_type = F_UNLCK;
+ fcntl (fileno(mb), F_UNLCK, &fl); + fcntl (fileno(mb), F_UNLCK, &fl);
@ -139,6 +139,7 @@ diff -urN orig/nethack-3.4.3/src/mail.c nethack-3.4.3/src/mail.c
+ fcntl(fileno(mb), F_UNLCK, &fl); + fcntl(fileno(mb), F_UNLCK, &fl);
+ +
+ fclose(mb); + fclose(mb);
+ unlink(mailbox);
+ return; + return;
+ } + }
+# endif /* SIMPLE_MAIL */ +# endif /* SIMPLE_MAIL */