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Code Issues Releases Activity

exec.cc: Add some overflow checks

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su8 2018-08-08 15:14:59 +02:00 committed by Brenden Matthews
parent e229f1a398
commit 260554883a
1 changed files with 6 additions and 3 deletions
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9
src/exec.cc
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@ -59,20 +59,23 @@ static FILE *pid_popen(const char *command, const char *mode, pid_t *child) {
char *str1 = cmd;
const char *str2 = command;
int skip = 0;
int x = 0;
for (; *str2; str2++) {
for (; *str2; str2++, x++) {
if (0 == skip) {
if (*str2 == '"' || *str2 == '\'') {
skip = 1;
continue;
}
}
if ('\0' == *(str2+1)) {
if ('\0' == *(str2+1) && 1 == skip) {
if (*str2 == '"' || *str2 == '\'') {
continue;
}
}
*str1++ = *str2;
if (254 > x) {
*str1++ = *str2;
}
}
*str1 = '\0';