Handle snprintf() returning < 0 (not just -1)

MFC after:	2 weeks

2 files changed, 3 insertions, 3 deletions

diff --git a/pw/pw_conf.c b/pw/pw_conf.c
index e4c5a4a..9377239 100644
--- a/pw/pw_conf.c
+++ b/pw/pw_conf.c
@@ -420,7 +420,7 @@ write_userconfig(char const * file)
 					for (j = k = 0; j < _UC_MAXSHELLS && system_shells[j] != NULL; j++) {
 						char	lbuf[64];
 						int	l = snprintf(lbuf, sizeof lbuf, "%s\"%s\"", k ? "," : "", system_shells[j]);
-						if (l == -1)
+						if (l < 0)
 							l = 0;
 						if (l + k + 1 < len || extendline(&buf, &len, len + LNBUFSZ) != -1) {
 							strcpy(buf + k, lbuf);
@@ -440,7 +440,7 @@ write_userconfig(char const * file)
 					for (j = k = 0; j < config.numgroups && config.groups[j] != NULL; j++) {
 						char	lbuf[64];
 						int	l = snprintf(lbuf, sizeof lbuf, "%s\"%s\"", k ? "," : "", config.groups[j]);
-						if (l == -1)
+						if (l < 0)
 							l = 0;
 						if (l + k + 1 < len || extendline(&buf, &len, len + 1024) != -1) {
 							strcpy(buf + k, lbuf);
diff --git a/pw/pwupd.c b/pw/pwupd.c
index ec29b9e..67a816f 100644
--- a/pw/pwupd.c
+++ b/pw/pwupd.c
@@ -166,7 +166,7 @@ pw_update(struct passwd * pwd, char const * user, int mode)
 		else
 			fmtpwentry(pwbuf, pwd, PWF_PASSWD);
 
-		if (l == -1)
+		if (l < 0)
 			l = 0;
 		rc = fileupdate(getpwpath(_PASSWD), 0644, pwbuf, pfx, l, mode);
 		if (rc == 0) {