57 lines
1.3 KiB
Diff
57 lines
1.3 KiB
Diff
If the response is larger than 1024 bytes, go ahead and retry.
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--- hesiod-3.1.0/hesiod.c 2006-03-30 13:22:57.000000000 -0500
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+++ hesiod-3.1.0/hesiod.c 2006-03-30 13:28:16.000000000 -0500
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@@ -327,8 +327,9 @@
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*/
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static char **get_txt_records(struct hesiod_p *ctx, const char *name)
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{
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- unsigned char qbuf[PACKETSZ], abuf[MAX_HESRESP];
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- int n;
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+ unsigned char qbuf[PACKETSZ], *abuf;
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+ char **tmp;
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+ int n, i, len;
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/* Make sure the resolver is initialized. */
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if ((_res.options & RES_INIT) == 0 && res_init() == -1)
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@@ -343,14 +344,36 @@
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}
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/* Send the query. */
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- n = res_send(qbuf, n, abuf, MAX_HESRESP);
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- if (n < 0)
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+ abuf = NULL;
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+ len = 1024;
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+ i = n;
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+ do
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+ {
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+ abuf = realloc(abuf, len);
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+ if (abuf == NULL)
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+ {
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+ n = -1;
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+ break;
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+ }
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+ n = res_send(qbuf, i, abuf, len);
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+ if (n < len)
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+ {
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+ break;
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+ }
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+ len = n + 1024;
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+ } while(1);
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+ if (n < (ssize_t) sizeof(HEADER))
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{
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errno = ECONNREFUSED;
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+ free(abuf);
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return NULL;
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}
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- return hesiod_parse_result(ctx, abuf, n);
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+ tmp = hesiod_parse_result(ctx, abuf, n);
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+
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+ free(abuf);
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+
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+ return tmp;
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}
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char **hesiod_parse_result(void *ctx, const unsigned char *abuf, int alen)
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