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v4.1.x: Keyval parse tweaks #8164

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Merged
jsquyres merged 2 commits into from
Oct 31, 2020
Merged

v4.1.x: Keyval parse tweaks #8164

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19c863b
keyval_parse.c: ensure to init values
Oct 31, 2020
c10a85e
keyval_parse.c: update whitespace/comments
Oct 31, 2020
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20 changes: 13 additions & 7 deletions opal/util/keyval_parse.c
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Original file line number Diff line number Diff line change
Expand Up @@ -12,6 +12,9 @@
* All rights reserved.
* Copyright (c) 2015-2016 Los Alamos National Security, LLC. All rights
* reserved.
* Copyright (c) 2018 Triad National Security, LLC. All rights
* reserved.
* Copyright (c) 2020 Cisco Systems, Inc. All rights reserved
* $COPYRIGHT$
*
* Additional copyrights may follow
Expand Down Expand Up @@ -274,7 +277,7 @@ static int save_param_name (void)

static int add_to_env_str(char *var, char *val)
{
int sz, varsz, valsz, new_envsize;
int sz, varsz = 0, valsz = 0, new_envsize;
void *tmp;

if (NULL == var) {
Expand All @@ -284,22 +287,25 @@ static int add_to_env_str(char *var, char *val)
varsz = strlen(var);
if (NULL != val) {
valsz = strlen(val);
/* account for '=' */
/* If we have a value, it will be preceeded by a '=', so be
sure to account for that */
valsz += 1;
}
sz = 0;
if (NULL != env_str) {
sz = strlen(env_str);
/* account for ';' */
/* If we have a valid variable, the whole clause will be
terminated by a ';', so be sure to account for that */
sz += 1;
}
/* add required new size incl NUL byte */
sz += varsz+valsz+1;
/* Sum the required new sizes, including space for a terminating
\0 byte */
sz += varsz + valsz + 1;

/* make sure we have sufficient space */
/* Make sure we have sufficient space */
new_envsize = envsize;
while (new_envsize <= sz) {
new_envsize *=2;
new_envsize *= 2;
}

if (NULL != env_str) {
Expand Down