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flashrom.c: allow - as filename for stdin

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Allows - as filename for -w/-v options. It is sometimes useful to
script flashrom and allowing it to work with pipes allows for more
flexibility in this specific use-case.

Signed-off-by: Daniel Campello <campello@chromium.org>
Change-Id: I97889cfdf7ba9a257e182c4ee2b20075cfa58d4d
Reviewed-on: https://review.coreboot.org/c/flashrom/+/52383
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Edward O'Callaghan <quasisec@chromium.org>
This commit is contained in:
Daniel Campello
2021-04-15 10:36:04 -06:00
committed by Edward O'Callaghan
parent 4cc7363d25
commit d4063bf3a7
2 changed files with 11 additions and 5 deletions
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8
cli_classic.c
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@ -48,8 +48,10 @@ static void cli_classic_usage(const char *name)
printf(" -h | --help print this help text\n"
" -R | --version print version (release)\n"
" -r | --read <file> read flash and save to <file>\n"
" -w | --write <file> write <file> to flash\n"
" -v | --verify <file> verify flash against <file>\n"
" -w | --write <file|-> write <file> or the content provided\n"
" on the standard input to flash\n"
" -v | --verify <file|-> verify flash against <file>\n"
" or the content provided on the standard input\n"
" -E | --erase erase flash memory\n"
" -V | --verbose more verbose output\n"
" -c | --chip <chipname> probe only for specified flash chip\n"
@ -107,7 +109,7 @@ static int check_filename(char *filename, const char *type)
return 1;
}
/* Not an error, but maybe the user intended to specify a CLI option instead of a file name. */
if (filename[0] == '-')
if (filename[0] == '-' && filename[1] != '\0')
fprintf(stderr, "Warning: Supplied %s file name starts with -\n", type);
return 0;
}