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Fixed skipping the UDH when parsing PDUs in 7-bit encoding

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This commit is contained in:
Pierre Pronchery 2014-02-21 03:22:41 +01:00
parent 0e214179ea
commit 60d16be4b2
1 changed files with 7 additions and 7 deletions
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14
src/modems/hayes.c
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@ -3248,17 +3248,15 @@ static char * _cmgr_pdu_parse_encoding_default(char const * pdu, size_t len,
char * r;
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s()\n", __func__);
fprintf(stderr, "DEBUG: %s(%lu, %lu)\n", __func__, i, hdr);
#endif
if((p = malloc(len - i + 1)) == NULL)
return NULL;
if(hdr != 0)
{
/* FIXME actually parse the header */
u = 2 + (hdr * 2);
if(u % 7 != 0) /* fill bits */
u += 7 - (u % 7);
i += u;
i += 2 + (hdr * 2);
shift = (hdr + 1) % 7;
}
p[0] = '\0';
for(j = 0, rest = 0; i + 1 < len; i+=2)
@ -3267,10 +3265,12 @@ static char * _cmgr_pdu_parse_encoding_default(char const * pdu, size_t len,
if(sscanf(q, "%02X", &u) != 1)
break; /* FIXME report an error instead? */
byte = u;
p[j] = (byte << (shift + 1) >> (shift + 1) << shift) & 0x7f;
p[j] = (((byte << (shift + 1)) >> (shift + 1)) << shift) & 0x7f;
p[j] |= rest;
p[j] = _hayes_convert_char_to_iso(p[j]);
j++;
/* ignore the first character if there is a header */
if(hdr == 0 || j != 0)
j++;
rest = (byte >> (7 - shift)) & 0x7f;
if(++shift == 7)
{