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Do not attempt ro read more than sizeof(buf) from stdin.

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This commit is contained in:
Olivier Houchard 2004-05-10 15:52:16 +00:00
parent 3581cc66bb
commit 72d8d1c7f3
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=129090
1 changed files with 2 additions and 0 deletions
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2
usr.bin/talk/io.c
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@ -138,6 +138,8 @@ talk()
*/
int i;
ioctl(0, FIONREAD, (void *) &nb);
if (nb > sizeof buf)
nb = sizeof buf;
nb = read(STDIN_FILENO, buf, nb);
display(&my_win, buf, nb);
/* might lose data here because sockt is non-blocking */