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aandvalenzuela
/
RRTcodebaseC

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/* all needed data found? */
if (aheader->addr && aheader->public_key->binary) {
success = 1;
}
cleanup:
free(header_str);
if (!success) { dc_aheader_empty(aheader); }
return success;
}
/*******************************************************************************
* Main interface
******************************************************************************/
/**
* @memberof dc_aheader_t
*/
dc_aheader_t* dc_aheader_new()
{
dc_aheader_t* aheader = NULL;
if ((aheader=calloc(1, sizeof(dc_aheader_t)))==NULL) {
exit(37); /* cannot allocate little memory, unrecoverable error */
}
aheader->public_key = dc_key_new();
return aheader;
}
/**
* @memberof dc_aheader_t
*/
void dc_aheader_unref(dc_aheader_t* aheader)
{
if (aheader==NULL) {
return;
}
free(aheader->addr);
dc_key_unref(aheader->public_key);
free(aheader);
}
/**
* @memberof dc_aheader_t
*/
dc_aheader_t* dc_aheader_new_from_imffields(const char* wanted_from, const struct mailimf_fields* header)
{
clistiter* cur = NULL;
dc_aheader_t* fine_header = NULL;
if (wanted_from==NULL || header==NULL) {
return 0;
}
for (cur = clist_begin(header->fld_list); cur!=NULL ; cur=clist_next(cur))
{
struct mailimf_field* field = (struct mailimf_field*)clist_content(cur);
if (field && field->fld_type==MAILIMF_FIELD_OPTIONAL_FIELD)
{
struct mailimf_optional_field* optional_field = field->fld_data.fld_optional_field;
if (optional_field && optional_field->fld_name && strcasecmp(optional_field->fld_name, "Autocrypt")==0)
{
/* header found, check if it is valid and matched the wanted address */
dc_aheader_t* test = dc_aheader_new();
if (!dc_aheader_set_from_string(test, optional_field->fld_value)
|| dc_addr_cmp(test->addr, wanted_from)!=0) {
dc_aheader_unref(test);
test = NULL;
}
if (fine_header==NULL) {
fine_header = test; /* may still be NULL */
}
else if (test) {
dc_aheader_unref(fine_header);
dc_aheader_unref(test);
return NULL; /* more than one valid header for the same address results in an error, see Autocrypt Level 1 */
}
}
}
}
return fine_header; /* may be NULL */
}
```
Filename: dc_apeerstate.c
```c
#include "dc_context.h"
#include "dc_apeerstate.h"