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Chase a cornercase in printenv and sync its behaviour with builtin's

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The cornercase is when printenv is passed a parameter in the form VAR=val,
where VAR=val exists in the environment. In this case, printenv would print a
spurious newline and returns 0.

Approved by:		cognet
MFC after:			1 week
This commit is contained in:
Pietro Cerutti 2016-10-19 14:51:25 +00:00
parent 99746e4658
commit 3652bc8e09
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=307638
1 changed files with 2 additions and 2 deletions
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4
usr.bin/printenv/printenv.c
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@ -83,8 +83,8 @@ main(int argc, char *argv[])
for (ep = environ; *ep; ep++)
if (!memcmp(*ep, *argv, len)) {
cp = *ep + len;
if (!*cp || *cp == '=') {
(void)printf("%s\n", *cp ? cp + 1 : cp);
if (*cp == '=') {
(void)printf("%s\n", cp + 1);
exit(0);
}
}