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wolfssh
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Code Issues Releases Wiki Activity

cast on values and adjust isspace check

pull/435/head
Jacob Barthelmeh 2022-08-10 14:58:02 -06:00
parent 97974e9af2
commit 17f3a029e3
1 changed files with 18 additions and 13 deletions
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31
apps/wolfsshd/configuration.c
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@ -434,26 +434,28 @@ static int HandleInclude(WOLFSSHD_CONFIG *conf, const char *value)
const char *ptr2;
const char *postfix = NULL;
const char *prefix = NULL;
int prefix_len = 0;
int prefixLen = 0;
int found = 0;
/* No value, nothing to do */
if (!value || value[0] == '\0') {
return WS_BAD_ARGUMENT;
}
/* Ignore trailing whitespace */
ptr = value + strlen(value) - 1;
while(ptr != value) {
if (!isspace(value)) {
ptr = value + WSTRLEN(value) - 1;
while (ptr != value) {
if (!isspace(*ptr)) {
ptr--;
}
else {
break;
}
}
/* Find wildcards */
ptr2 = ptr;
while(ptr2 != value) {
while (ptr2 != value) {
if (*ptr2 == '*') {
/* Wildcard found */
found = 1;
@ -469,6 +471,7 @@ static int HandleInclude(WOLFSSHD_CONFIG *conf, const char *value)
ptr2--;
}
ptr = ptr2;
/* Use wildcard */
if (found) {
#ifdef __unix__
@ -491,13 +494,13 @@ static int HandleInclude(WOLFSSHD_CONFIG *conf, const char *value)
memcpy(path, value, ptr2 - value);
path[ptr2 - value] = '\0';
prefix = ptr2 + 1;
prefix_len = ptr - ptr2 - 1;
prefixLen = (int)(ptr - ptr2 - 1);
} else {
path = WMALLOC(2, NULL, 0);
memcpy(path, ".", 1);
path[1] = '\0';
prefix = value;
prefix_len = ptr - value;
prefixLen = (int)(ptr - value);
}
d = opendir(path);
@ -509,21 +512,21 @@ static int HandleInclude(WOLFSSHD_CONFIG *conf, const char *value)
}
else {
/* Check if filename prefix matches */
if (prefix_len > 0) {
if (strlen(dir->d_name) <= prefix_len) {
if (prefixLen > 0) {
if ((int)WSTRLEN(dir->d_name) <= prefixLen) {
continue;
}
if (strncmp(dir->d_name, prefix, prefix_len) != 0) {
if (WSTRNCMP(dir->d_name, prefix, prefixLen) != 0) {
continue;
}
}
if (postfix) {
/* Skip if file is too short */
if (strlen(dir->d_name) <= strlen(postfix)) {
if (WSTRLEN(dir->d_name) <= WSTRLEN(postfix)) {
continue;
}
if (strncmp(dir->d_name + strlen(dir->d_name) -
strlen(postfix), postfix, strlen(postfix))
if (WSTRNCMP(dir->d_name + WSTRLEN(dir->d_name) -
WSTRLEN(postfix), postfix, WSTRLEN(postfix))
== 0) {
snprintf(filepath, PATH_MAX, "%s/%s", path,
dir->d_name);
@ -551,6 +554,8 @@ static int HandleInclude(WOLFSSHD_CONFIG *conf, const char *value)
}
WFREE(filepath, NULL, 0);
#else
(void)prefixLen;
(void)prefix;
/* Don't support wildcards here */
return WS_BAD_ARGUMENT;
#endif