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Only quote libpq connection string values that need quoting. 

There's no harm in excessive quoting per se, but it makes the strings nicer
to read. The values can get quite unwieldy, when they're first quoted within
within single-quotes when included in the connection string, and then all
the single-quotes are escaped when the connection string is passed as a
shell argument.
This commit is contained in:
Heikki Linnakangas 2013-02-25 19:53:04 +02:00
parent 3dee636e04
commit 2953cd6d17
1 changed files with 32 additions and 7 deletions
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39
src/bin/pg_dump/pg_dumpall.c
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@ -2038,15 +2038,40 @@ dumpTimestamp(char *msg)
static void
doConnStrQuoting(PQExpBuffer buf, const char *str)
{
while (*str)
{
/* ' and \ must be escaped by to \' and \\ */
if (*str == '\'' || *str == '\\')
appendPQExpBufferChar(buf, '\\');
const char *s;
bool needquotes;
appendPQExpBufferChar(buf, *str);
str++;
/*
* If the string consists entirely of plain ASCII characters, no need to
* quote it. This is quite conservative, but better safe than sorry.
*/
needquotes = false;
for (s = str; *s; s++)
{
if (!((*s >= 'a' && *s <= 'z') || (*s >= 'A' && *s <= 'Z') ||
(*s >= '0' && *s <= '9') || *s == '_' || *s == '.'))
{
needquotes = true;
break;
}
}
if (needquotes)
{
appendPQExpBufferChar(buf, '\'');
while (*str)
{
/* ' and \ must be escaped by to \' and \\ */
if (*str == '\'' || *str == '\\')
appendPQExpBufferChar(buf, '\\');
appendPQExpBufferChar(buf, *str);
str++;
}
appendPQExpBufferChar(buf, '\'');
}
else
appendPQExpBufferStr(buf, str);
}
/*