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Fix $() handling, broken since the beginning at r108014.

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Due to off-by-one error in brackets counting it consumed the rest of the
string, preventing later variables expansions.

MFC after:	2 weeks
Sponsored by:	iXsystems, Inc.
This commit is contained in:
Alexander Motin 2019-12-13 17:52:09 +00:00
parent c3eda7cbf1
commit de57976691
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=355718
1 changed files with 3 additions and 3 deletions
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6
sbin/devd/devd.cc
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@ -681,15 +681,15 @@ config::expand_one(const char *&src, string &dst, bool is_shell)
// This is the escape hatch for passing down shell subcommands
if (*src == '(') {
dst += '$';
count = 1;
count = 0;
/* If the string ends before ) is matched , return. */
while (count > 0 && *src) {
do {
if (*src == ')')
count--;
else if (*src == '(')
count++;
dst += *src++;
}
} while (count > 0 && *src);
return;
}