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Only remove a delimiterin macro expansion if a delimiter was found #43

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Only remove a delimiterin macro expansion if a delimiter was found #43

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8 changes: 7 additions & 1 deletion src/libspf2/spf_expand.c
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Original file line number Diff line number Diff line change
Expand Up @@ -354,7 +354,13 @@ SPF_record_expand_data(SPF_server_t *spf_server,
break;
p_write--;
}
p_write++; /* Move to just after the '.' */
/* Move to just after the '.', but only if we have found at least
* one '.' in the string. For a string without any delimiter
* inside there is no '.' to remove, otherwise we would remove a
* character from the payload */
if (num_found != 0) {
p_write++;
}
/* This moves the '\0' as well. */
len = p_read_end - p_write;
memmove(munged_var, p_write, len + 1);
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