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98c53ae526
The getnameinfo implementation requires an address -> name lookup on the hosts file (ie struct HostsTxt) and the previous implementation used flags to check whether HostsTxt was sorted according to address or name, and then re-sorted it if necessary. Now getnameinfo lookup does not require sorting, it does a simple linear lookup, and so the related code was simplified See #172 for discussion.
41 lines
1.2 KiB
C
41 lines
1.2 KiB
C
#ifndef COSMOPOLITAN_LIBC_DNS_HOSTSTXT_H_
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#define COSMOPOLITAN_LIBC_DNS_HOSTSTXT_H_
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#include "libc/sock/sock.h"
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#include "libc/stdio/stdio.h"
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#if !(__ASSEMBLER__ + __LINKER__ + 0)
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COSMOPOLITAN_C_START_
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struct HostsTxtEntry {
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uint8_t ip[4]; /* inet_ntop(AF_INET, he->ip, buf, size) */
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uint32_t name; /* &ht->strings.p[he->name] */
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uint32_t canon; /* &ht->strings.p[he->canon] */
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};
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struct HostsTxtEntries {
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size_t i, n;
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struct HostsTxtEntry *p;
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};
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struct HostsTxtStrings {
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size_t i, n;
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char *p;
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};
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struct HostsTxt {
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struct HostsTxtEntries entries;
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struct HostsTxtStrings strings;
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};
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const struct HostsTxt *GetHostsTxt(void) returnsnonnull;
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void FreeHostsTxt(struct HostsTxt **) paramsnonnull();
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int ParseHostsTxt(struct HostsTxt *, FILE *) paramsnonnull();
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void SortHostsTxt(struct HostsTxt *) paramsnonnull();
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int ResolveHostsTxt(const struct HostsTxt *, int, const char *,
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struct sockaddr *, uint32_t, const char **)
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paramsnonnull((1, 3));
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int ResolveHostsReverse(const struct HostsTxt *, int, const uint8_t *, char *,
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size_t) paramsnonnull((1, 3));
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COSMOPOLITAN_C_END_
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#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
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#endif /* COSMOPOLITAN_LIBC_DNS_HOSTSTXT_H_ */
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