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common: New functions nvc_delete_named and nvc_get_string.

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* common/name-value.c (nvc_delete_named): New.
(nvc_get_string): New.

Signed-off-by: Werner Koch <wk@gnupg.org>
This commit is contained in:
Werner Koch 2019-05-07 11:01:15 +02:00
parent c856ee7312
commit b5985d0ca2
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GPG key ID: E3FDFF218E45B72B
3 changed files with 65 additions and 0 deletions
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34
common/name-value.c
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@ -514,6 +514,21 @@ nvc_delete (nvc_t pk, nve_t entry)
nve_release (entry, pk->private_key_mode);
}
/* Delete the entries with NAME from PK. */
void
nvc_delete_named (nvc_t pk, const char *name)
{
nve_t e;
if (!valid_name (name))
return;
while ((e = nvc_lookup (pk, name)))
nvc_delete (pk, e);
}
/* Lookup and iteration. */
@ -563,6 +578,25 @@ nve_next_value (nve_t entry, const char *name)
return NULL;
}
/* Return the string for the first entry in NVC with NAME. If an
* entry with NAME is missing in NVC or its value is the empty string
* NULL is returned. Note that the The returned string is a pointer
* into NVC. */
const char *
nvc_get_string (nvc_t nvc, const char *name)
{
nve_t item;
if (!nvc)
return NULL;
item = nvc_lookup (nvc, name);
if (!item)
return NULL;
return nve_value (item);
}
/* Private key handling. */