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authoravg <avg@FreeBSD.org>2013-07-16 07:26:46 +0000
committeravg <avg@FreeBSD.org>2013-07-16 07:26:46 +0000
commit1afb4f28866d80f39b458ae5f3d36219e7b47c59 (patch)
treecff6b47ab4fa155b1720a708c0c25e19155877b3 /lib
parent5b5efe4af0114c6bcee292845f8a61ddbffa3e4b (diff)
downloadFreeBSD-src-1afb4f28866d80f39b458ae5f3d36219e7b47c59.zip
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libc: name passed into __setenv is not necessarily NUL-terminated
That's particularly true when __setenv is called from __merge_environ. MFC after: 4 days
Diffstat (limited to 'lib')
-rw-r--r--lib/libc/stdlib/getenv.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/libc/stdlib/getenv.c b/lib/libc/stdlib/getenv.c
index 47963d5..079b024 100644
--- a/lib/libc/stdlib/getenv.c
+++ b/lib/libc/stdlib/getenv.c
@@ -505,7 +505,7 @@ __setenv(const char *name, size_t nameLen, const char *value, int overwrite)
envVars[envNdx].valueSize = valueLen;
/* Save name of name/value pair. */
- env = stpcpy(envVars[envNdx].name, name);
+ env = stpncpy(envVars[envNdx].name, name, nameLen);
if ((envVars[envNdx].name)[nameLen] != '=')
env = stpcpy(env, "=");
}
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