[Pkg-voip-commits] [dahdi-tools] 67/285: xpp: clean 'Extrainfo' EEPROM field
tzafrir at debian.org
tzafrir at debian.org
Thu Jul 7 19:18:31 UTC 2016
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tzafrir pushed a commit to branch master
in repository dahdi-tools.
commit 971a45a8072e5a0b0e5db17498d7254d7054c0df
Author: Oron Peled <oron.peled at xorcom.com>
Date: Thu Mar 15 20:29:09 2012 +0000
xpp: clean 'Extrainfo' EEPROM field
* Extrainfo field contains junk data
* Caused by:
- The field is initialized to 0xFF values
- There was no null termination (and no room to add it)
* New code:
- Ensure that show_extrainfo() have null termination even if EEPROM
field is full.
- Replace trailing 0xFF characters with '\0' when reading this field
- Since our default burned EEPROM contain Extrainfo field full of
0xFF characters, this would make them look as null filled.
Internal Issue-Id: #1341
Signed-off-by: Oron Peled <oron.peled at xorcom.com>
Acked-by: Tzafrir Cohen <tzafrir.cohen at xorcom.com>
git-svn-id: http://svn.astersk.org/svn/dahdi/tools/trunk@10491 17933a7a-c749-41c5-a318-cba88f637d49
---
xpp/mpp.h | 2 +-
xpp/mpptalk.c | 16 +++++++++++++++-
xpp/mpptalk_defs.h | 2 ++
3 files changed, 18 insertions(+), 2 deletions(-)
diff --git a/xpp/mpp.h b/xpp/mpp.h
index 23a0ce9..e6b8e3a 100644
--- a/xpp/mpp.h
+++ b/xpp/mpp.h
@@ -83,7 +83,7 @@ struct capkey {
} PACKED;
struct extrainfo {
- char text[24];
+ char text[EXTRAINFO_SIZE];
} PACKED;
struct mpp_header {
diff --git a/xpp/mpptalk.c b/xpp/mpptalk.c
index a8bf12a..6b33743 100644
--- a/xpp/mpptalk.c
+++ b/xpp/mpptalk.c
@@ -366,7 +366,17 @@ int mpp_extrainfo_get(struct astribank_device *astribank, struct extrainfo *info
}
assert(reply->header.op == MPP_EXTRAINFO_GET_REPLY);
if(info) {
+ int i;
+
memcpy(info, (void *)&CMD_FIELD(reply, MPP, EXTRAINFO_GET_REPLY, info), sizeof(*info));
+ /*
+ * clean non-printing characters
+ */
+ for (i = sizeof(*info) - 1; i >= 0; i--) {
+ if (info->text[i] != (char)0xFF)
+ break;
+ info->text[i] = '\0';
+ }
}
free_command(reply);
return 0;
@@ -876,7 +886,11 @@ void show_astribank_status(struct astribank_device *astribank, FILE *fp)
void show_extrainfo(const struct extrainfo *extrainfo, FILE *fp)
{
- fprintf(fp, "Extrainfo: : %s\n", (const char *)(extrainfo->text));
+ char buf[EXTRAINFO_SIZE + 1];
+
+ memcpy(buf, extrainfo->text, EXTRAINFO_SIZE);
+ buf[EXTRAINFO_SIZE] = '\0'; /* assure null termination */
+ fprintf(fp, "Extrainfo: : '%s'\n", buf);
}
int twinstar_show(struct astribank_device *astribank, FILE *fp)
diff --git a/xpp/mpptalk_defs.h b/xpp/mpptalk_defs.h
index e38f381..bc0b83b 100644
--- a/xpp/mpptalk_defs.h
+++ b/xpp/mpptalk_defs.h
@@ -108,4 +108,6 @@ enum dev_dest {
DEST_EEPROM = 0x02,
};
+#define EXTRAINFO_SIZE 24
+
#endif /* MPPTALK_DEFS_H */
--
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