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pg_clean_ascii(): escape bytes rather than lose them

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Rather than replace each unprintable byte with a '?' character, replace
it with a hex escape instead. The API now allocates a copy rather than
modifying the input in place.

Author: Jacob Champion <jchampion@timescale.com>
Discussion: https://www.postgresql.org/message-id/CAAWbhmgsvHrH9wLU2kYc3pOi1KSenHSLAHBbCVmmddW6-mc_=w@mail.gmail.com
This commit is contained in:
Peter Eisentraut
2022-09-13 16:10:44 +02:00
parent da5d4ea5aa
commit 45b1a67a0f
4 changed files with 67 additions and 19 deletions
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6
src/backend/postmaster/postmaster.c
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@@ -2280,11 +2280,7 @@ retry1:
*/
if (strcmp(nameptr, "application_name") == 0)
{
char *tmp_app_name = pstrdup(valptr);
pg_clean_ascii(tmp_app_name);
port->application_name = tmp_app_name;
port->application_name = pg_clean_ascii(valptr, 0);
}
}
offset = valoffset + strlen(valptr) + 1;