Here is a list of all files with brief descriptions:

[detail level 123]

src
include
spf.h
spf_dns.h
spf_dns_cache.h
spf_dns_internal.h
spf_dns_null.h
spf_dns_resolv.h
spf_dns_rr.h
spf_dns_test.h	A testing layer for DNS
spf_dns_windns.h
spf_dns_zone.h	A local DNS zone layer
spf_internal.h
spf_lib_version.h	Autogenerated configuration information - do not edit
spf_log.h
spf_record.h
spf_request.h
spf_response.h
spf_server.h
spf_sys_config.h
spf_win32.h
spf_win32_internal.h
libspf2
spf_compile.c
spf_dns.c
spf_dns_cache.c
spf_dns_null.c
spf_dns_resolv.c	A DNS resolver which uses libresolv/libbind to query a DNS server
spf_dns_rr.c
spf_dns_test.c
spf_dns_windns.c
spf_dns_zone.c
spf_expand.c	Expansion routine for SPF macros
spf_get_exp.c
spf_get_spf.c
spf_id2str.c
spf_interpret.c
spf_log.c
spf_log_default.c
spf_log_stdio.c
spf_log_syslog.c
spf_print.c
spf_record.c
spf_request.c
spf_response.c
spf_server.c
spf_strerror.c
spf_utils.c
spf_win32.c
spf_example
spf_example.c
spfd
spfd.c
spfquery
spfquery.c
spftest
spftest.c
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