[flashrom] [PATCH] Add dmidecode quirk workaround
Michael Karcher
flashrom at mkarcher.dialup.fu-berlin.de
Sun Aug 8 11:24:03 CEST 2010
dmidecode emits a warning message about unsupported SMBIOS versions
to stdout before the information asked for when using "-s". I consider
this behaviour broken, but we still need to workaround it as e.g. Fedora
currently distributes an dmidecode with this behaviour.
Signed-off-by: Michael Karcher <flashrom at mkarcher.dialup.fu-berlin.de>
---
dmi.c | 24 ++++++++++++++++--------
1 files changed, 16 insertions(+), 8 deletions(-)
diff --git a/dmi.c b/dmi.c
index cf459ec..98d595c 100644
--- a/dmi.c
+++ b/dmi.c
@@ -76,15 +76,23 @@ static char *get_dmi_string(const char *string_name)
msg_perr("DMI pipe open error\n");
return NULL;
}
- if (!fgets(answerbuf, DMI_MAX_ANSWER_LEN, dmidecode_pipe)) {
- if(ferror(dmidecode_pipe)) {
- msg_perr("DMI pipe read error\n");
- pclose(dmidecode_pipe);
- return NULL;
- } else {
- answerbuf[0] = 0; /* Hit EOF */
+
+ /* Kill lines starting with '#', as recent dmidecode versions
+ have the quirk to emit a "# SMBIOS implementations newer..."
+ message even on "-s", when it *should* only print the
+ requested string. */
+ do {
+ if (!fgets(answerbuf, DMI_MAX_ANSWER_LEN, dmidecode_pipe)) {
+ if(ferror(dmidecode_pipe)) {
+ msg_perr("DMI pipe read error\n");
+ pclose(dmidecode_pipe);
+ return NULL;
+ } else {
+ answerbuf[0] = 0; /* Hit EOF */
+ }
}
- }
+ } while(answerbuf[0] == '#');
+
/* Toss all output above DMI_MAX_ANSWER_LEN away to prevent
deadlock on pclose. */
while (!feof(dmidecode_pipe))
--
1.7.1
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