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author | Werner Koch <[email protected]> | 2005-04-18 10:44:46 +0000 |
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committer | Werner Koch <[email protected]> | 2005-04-18 10:44:46 +0000 |
commit | eff62d82bfcb9df1b85ce596f0f5b6ef00d3a0ca (patch) | |
tree | f865ac069a4f50caa0c4b62fc232a3d4e2331b4c /common/sexputil.c | |
parent | 2005-04-15 Marcus Brinkmann <[email protected]> (diff) | |
download | gnupg-eff62d82bfcb9df1b85ce596f0f5b6ef00d3a0ca.tar.gz gnupg-eff62d82bfcb9df1b85ce596f0f5b6ef00d3a0ca.zip |
* configure.ac: Require libksba 0.9.11.
sm/
* call-dirmngr.c (inq_certificate): Add new inquire SENDCERT_SKI.
* certlist.c (gpgsm_find_cert): Add new arg KEYID and implement
this filter. Changed all callers.
* certchain.c (find_up_search_by_keyid): New helper.
(find_up): Also try using the AKI.keyIdentifier.
(find_up_external): Ditto.
Diffstat (limited to 'common/sexputil.c')
-rw-r--r-- | common/sexputil.c | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/common/sexputil.c b/common/sexputil.c index 853d7e58a..802916b44 100644 --- a/common/sexputil.c +++ b/common/sexputil.c @@ -61,3 +61,81 @@ keygrip_from_canon_sexp (const unsigned char *key, size_t keylen, return err; } + +/* Compare two simple S-expressions like "(3:foo)". Returns 0 if they + are identical or !0 if they are not. Not that this function can't + be used for sorting. */ +int +cmp_simple_canon_sexp (const unsigned char *a, const unsigned char *b) +{ + unsigned long n1, n2; + char *endp; + + if (!a && !b) + return 0; /* Both are NULL, they are identical. */ + if (!a || !b) + return 1; /* One is NULL, they are not identical. */ + if (*a != '(' || *b != '(') + log_bug ("invalid S-exp in cmp_simple_canon_sexp\n"); + + a++; + n1 = strtoul (a, &endp, 10); + a = endp; + b++; + n2 = strtoul (b, &endp, 10); + b = endp; + + if (*a != ':' || *b != ':' ) + log_bug ("invalid S-exp in cmp_simple_canon_sexp\n"); + if (n1 != n2) + return 1; /* Not the same. */ + + for (a++, b++; n1; n1--, a++, b++) + if (*a != *b) + return 1; /* Not the same. */ + return 0; +} + + +/* Create a simple S-expression from the hex string at LIBNE. Returns + a newly allocated buffer with that canonical encoded S-expression + or NULL in case of an error. On return the number of characters + scanned in LINE will be stored at NSCANNED. This fucntions stops + converting at the first character not representing a hexdigit. Odd + numbers of hex digits are allowed; a leading zero is then + assumed. If no characters have been found, NULL is returned.*/ +unsigned char * +make_simple_sexp_from_hexstr (const char *line, size_t *nscanned) +{ + size_t n, len; + const char *s; + unsigned char *buf; + unsigned char *p; + char numbuf[50]; + + for (n=0, s=line; hexdigitp (s); s++, n++) + ; + if (nscanned) + *nscanned = n; + if (!n) + return NULL; + len = ((n+1) & ~0x01)/2; + sprintf (numbuf, "(%u:", (unsigned int)len); + buf = xtrymalloc (strlen (numbuf) + len + 1 + 1); + if (!buf) + return NULL; + p = stpcpy (buf, numbuf); + s = line; + if ((n&1)) + { + *p++ = xtoi_1 (s); + s++; + n--; + } + for (; n > 1; n -=2, s += 2) + *p++ = xtoi_2 (s); + *p++ = ')'; + *p = 0; /* (Not really neaded.) */ + + return buf; +} |