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-rw-r--r--gshadow/sgetsgent_r.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/gshadow/sgetsgent_r.c b/gshadow/sgetsgent_r.c
index 72c51fe26b..2292719af9 100644
--- a/gshadow/sgetsgent_r.c
+++ b/gshadow/sgetsgent_r.c
@@ -58,7 +58,12 @@ __sgetsgent_r (const char *string, struct sgrp *resbuf, char *buffer,
{
char *sp;
if (string < buffer || string >= buffer + buflen)
- sp = strncpy (buffer, string, buflen);
+ {
+ buffer[buflen - 1] = '\0';
+ sp = strncpy (buffer, string, buflen);
+ if (buffer[buflen - 1] != '\0')
+ return ERANGE;
+ }
else
sp = (char *) string;