From: Reginald Kennedy <rk@rejii.com>
Date: Wed, 25 Jul 2012 22:45:40 +0000 (+0800)
Subject: Get actual LOGIN_NAME_MAX value from sysconf.
X-Git-Url: https://jasonwoof.com/gitweb/?a=commitdiff_plain;ds=sidebyside;h=cbdd9e7fed98c7bb49ac2307b3a0651f01baed0c;p=spectrwm.git

Get actual LOGIN_NAME_MAX value from sysconf.
---

diff --git a/spectrwm.c b/spectrwm.c
index 4ded077..0be0227 100644
--- a/spectrwm.c
+++ b/spectrwm.c
@@ -701,8 +701,8 @@ char *
 expand_tilde(char *s)
 {
 	struct passwd           *pwd;
-	int                     i;
-	char                    user[LOGIN_NAME_MAX];
+	int                     i, max;
+	char                    *user;
 	const char              *sc = s;
 	char			*result;
 
@@ -715,6 +715,13 @@ expand_tilde(char *s)
 	}
 
 	++s;
+
+	if ((max = sysconf(_SC_LOGIN_NAME_MAX)) == -1)
+		errx(1, "expand_tilde: sysconf");
+
+	if ((user = calloc(1, max + 1)) == NULL)
+		errx(1, "expand_tilde: calloc");
+
 	for (i = 0; s[i] != '/' && s[i] != '\0'; ++i)
 		user[i] = s[i];
 	user[i] = '\0';