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-rw-r--r--misc.c31
1 files changed, 27 insertions, 4 deletions
diff --git a/misc.c b/misc.c
index ae4d29b84c2e..bdc06fdb3332 100644
--- a/misc.c
+++ b/misc.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: misc.c,v 1.131 2018/07/27 05:13:02 dtucker Exp $ */
+/* $OpenBSD: misc.c,v 1.133 2018/10/05 14:26:09 naddy Exp $ */
/*
* Copyright (c) 2000 Markus Friedl. All rights reserved.
* Copyright (c) 2005,2006 Damien Miller. All rights reserved.
@@ -50,6 +50,7 @@
#include <netinet/in_systm.h>
#include <netinet/ip.h>
#include <netinet/tcp.h>
+#include <arpa/inet.h>
#include <ctype.h>
#include <errno.h>
@@ -332,13 +333,16 @@ pwcopy(struct passwd *pw)
int
a2port(const char *s)
{
+ struct servent *se;
long long port;
const char *errstr;
port = strtonum(s, 0, 65535, &errstr);
- if (errstr != NULL)
- return -1;
- return (int)port;
+ if (errstr == NULL)
+ return (int)port;
+ if ((se = getservbyname(s, "tcp")) != NULL)
+ return ntohs(se->s_port);
+ return -1;
}
int
@@ -1948,6 +1952,25 @@ bad:
return 0;
}
+/*
+ * Verify that a environment variable name (not including initial '$') is
+ * valid; consisting of one or more alphanumeric or underscore characters only.
+ * Returns 1 on valid, 0 otherwise.
+ */
+int
+valid_env_name(const char *name)
+{
+ const char *cp;
+
+ if (name[0] == '\0')
+ return 0;
+ for (cp = name; *cp != '\0'; cp++) {
+ if (!isalnum((u_char)*cp) && *cp != '_')
+ return 0;
+ }
+ return 1;
+}
+
const char *
atoi_err(const char *nptr, int *val)
{