From 1e2f941db1671909ba3bde447c224bb64d1c002a Mon Sep 17 00:00:00 2001 From: Tom Lane Date: Thu, 27 Jul 2017 12:12:37 -0400 Subject: [PATCH] Avoid use of sprintf/snprintf in describe.c. Most places were already using the PQExpBuffer library for constructing variable-length strings; bring the two stragglers into line. describeOneTSParser was living particularly dangerously since it wasn't even using snprintf(). Daniel Gustafsson Discussion: https://postgr.es/m/3641F19B-336A-431A-86CE-A80562505C5E@yesql.se --- src/bin/psql/describe.c | 26 ++++++++++++++++---------- 1 file changed, 16 insertions(+), 10 deletions(-) diff --git a/src/bin/psql/describe.c b/src/bin/psql/describe.c index 03ef1b070c..4f4790cc5c 100644 --- a/src/bin/psql/describe.c +++ b/src/bin/psql/describe.c @@ -4113,7 +4113,7 @@ describeOneTSParser(const char *oid, const char *nspname, const char *prsname) { PQExpBufferData buf; PGresult *res; - char title[1024]; + PQExpBufferData title; printQueryOpt myopt = pset.popt; static const bool translate_columns[] = {true, false, false}; @@ -4169,11 +4169,13 @@ describeOneTSParser(const char *oid, const char *nspname, const char *prsname) return false; myopt.nullPrint = NULL; + initPQExpBuffer(&title); if (nspname) - sprintf(title, _("Text search parser \"%s.%s\""), nspname, prsname); + printfPQExpBuffer(&title, _("Text search parser \"%s.%s\""), + nspname, prsname); else - sprintf(title, _("Text search parser \"%s\""), prsname); - myopt.title = title; + printfPQExpBuffer(&title, _("Text search parser \"%s\""), prsname); + myopt.title = title.data; myopt.footers = NULL; myopt.topt.default_footer = false; myopt.translate_header = true; @@ -4202,10 +4204,11 @@ describeOneTSParser(const char *oid, const char *nspname, const char *prsname) myopt.nullPrint = NULL; if (nspname) - sprintf(title, _("Token types for parser \"%s.%s\""), nspname, prsname); + printfPQExpBuffer(&title, _("Token types for parser \"%s.%s\""), + nspname, prsname); else - sprintf(title, _("Token types for parser \"%s\""), prsname); - myopt.title = title; + printfPQExpBuffer(&title, _("Token types for parser \"%s\""), prsname); + myopt.title = title.data; myopt.footers = NULL; myopt.topt.default_footer = true; myopt.translate_header = true; @@ -4214,6 +4217,7 @@ describeOneTSParser(const char *oid, const char *nspname, const char *prsname) printQuery(res, &myopt, pset.queryFout, false, pset.logfile); + termPQExpBuffer(&title); PQclear(res); return true; } @@ -5004,7 +5008,7 @@ listOneExtensionContents(const char *extname, const char *oid) { PQExpBufferData buf; PGresult *res; - char title[1024]; + PQExpBufferData title; printQueryOpt myopt = pset.popt; initPQExpBuffer(&buf); @@ -5022,12 +5026,14 @@ listOneExtensionContents(const char *extname, const char *oid) return false; myopt.nullPrint = NULL; - snprintf(title, sizeof(title), _("Objects in extension \"%s\""), extname); - myopt.title = title; + initPQExpBuffer(&title); + printfPQExpBuffer(&title, _("Objects in extension \"%s\""), extname); + myopt.title = title.data; myopt.translate_header = true; printQuery(res, &myopt, pset.queryFout, false, pset.logfile); + termPQExpBuffer(&title); PQclear(res); return true; }