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tools: bpftool: read from stdin when batch file name is "-"

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Make bpftool read its command list from standard input when the name if
the input file is a single dash.

Signed-off-by: Quentin Monnet <[email protected]>
Acked-by: Jakub Kicinski <[email protected]>
Signed-off-by: Daniel Borkmann <[email protected]>
This commit is contained in:
Quentin Monnet 2018-03-01 20:20:10 -08:00 • committed by Daniel Borkmann
commit 416656bbaa
1 changed files with 6 additions and 2 deletions
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8
tools/bpf/bpftool/main.c
View file

@ -195,7 +195,10 @@ static int do_batch(int argc, char **argv)
}
NEXT_ARG();
fp = fopen(*argv, "r");
if (!strcmp(*argv, "-"))
fp = stdin;
else
fp = fopen(*argv, "r");
if (!fp) {
p_err("Can't open file (%s): %s", *argv, strerror(errno));
return -1;
@ -284,7 +287,8 @@ static int do_batch(int argc, char **argv)
err = 0;
}
err_close:
fclose(fp);
if (fp != stdin)
fclose(fp);
if (json_output)
jsonw_end_array(json_wtr);