On 1/13/16 8:52 AM, Ludovic Courtès wrote: > Greg Wooledge <wool...@eeg.ccf.org> skribis: > >> On Wed, Jan 13, 2016 at 11:25:03AM +0100, Ludovic Courtès wrote: >>> Hello, >>> >>> The ???READ_SAMPLE_BUF??? macro in execute_cmd.c reads at most 80 bytes from >>> the hash-bang line. This is less than the already-small 128-byte limit >>> in the Linux kernel¹ and can quite easily be hit². >> >> That's actually much bigger than one expects for shebang handling on >> any traditional Unix system. > > Sure, but the fact that it’s smaller than that of the kernel Linux is > problematic: when a hash-bang line > 127 chars is encountered, ‘execve’ > fails with ENOENT, so Bash’s fallback code is executed, fails as well,
No. Since the execve fails with ENOENT, bash just prints an error message. > but it prints a misleading error message with an even more truncated > hash-bang line. Again, it's only a cosmetic issue. I don't have a problem with increasing the buffer size, but let's not pretend it's anything but that. -- ``The lyf so short, the craft so long to lerne.'' - Chaucer ``Ars longa, vita brevis'' - Hippocrates Chet Ramey, ITS, CWRU c...@case.edu http://cnswww.cns.cwru.edu/~chet/