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don't disable seeking after first seek failure

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this could cause problems if the application uses dup2(fd,fileno(f))
to redirect, and the old fd was not seekable but the new fd is.
This commit is contained in:
Rich Felker 2011-04-02 13:55:54 -04:00
parent 9a909fcd91
commit 8de03e1a90
1 changed files with 0 additions and 8 deletions

8
src/stdio/__stdio_seek.c

@ -1,11 +1,5 @@
#include "stdio_impl.h"
static off_t retneg1(FILE *f, off_t off, int whence)
{
errno = ESPIPE;
return -1;
}
off_t __stdio_seek(FILE *f, off_t off, int whence)
{
off_t ret;
@ -15,7 +9,5 @@ off_t __stdio_seek(FILE *f, off_t off, int whence)
#else
ret = syscall(SYS_lseek, f->fd, off, whence);
#endif
/* Detect unseekable files and optimize future failures out */
if (ret < 0 && errno == ESPIPE) f->seek = retneg1;
return ret;
}