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Rewrite strnlen replacement implementation from 8a241792f9.

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The previous placement of the fallback implementation in libpgcommon
was problematic, because libpqport functions need strnlen
functionality.

Move replacement into libpgport. Provide strnlen() under its posix
name, instead of pg_strnlen(). Fix stupid configure bug, executing the
test only when compiled with threading support.

Author: Andres Freund
Discussion: https://postgr.es/m/E1e1gR2-0005fB-SI@gemulon.postgresql.org
This commit is contained in:
Andres Freund
2017-10-10 14:42:16 -07:00
parent fa5e119dc7
commit fffd651e83
10 changed files with 77 additions and 47 deletions
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4
src/port/snprintf.c
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@ -43,8 +43,6 @@
#endif
#include <sys/param.h>
#include "common/string.h"
#ifndef NL_ARGMAX
#define NL_ARGMAX 16
#endif
@ -804,7 +802,7 @@ fmtstr(char *value, int leftjust, int minlen, int maxwidth,
* than that.
*/
if (pointflag)
vallen = pg_strnlen(value, maxwidth);
vallen = strnlen(value, maxwidth);
else
vallen = strlen(value);