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(main): Ignore -f if no file operand is specified

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and standard input is a pipe.
This commit is contained in:
Paul Eggert 2004-07-22 20:54:04 +00:00
parent e5d9694985
commit 255eb9cf44
1 changed files with 9 additions and 0 deletions
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9
src/tail.c
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@ -1687,6 +1687,15 @@ main (int argc, char **argv)
static char *dummy_stdin = "-"; static char *dummy_stdin = "-";
n_files = 1; n_files = 1;
file = &dummy_stdin; file = &dummy_stdin;
/* POSIX says that -f is ignored if no file operand is specified
and standard input is a pipe. */
if (forever)
{
struct stat stats;
if (fstat (STDIN_FILENO, &stats) == 0 && S_ISFIFO (stats.st_mode))
forever = false;
}
} }
{ {