...
This noncompliant code example accesses the envp pointer after calling setenv().
| Code Block | ||||
|---|---|---|---|---|
| ||||
int main(int argc, const char *argv[], const char *envp[]) {
size_t i;
if (setenv("MY_NEW_VAR", "new_value", 1) != 0) {
/* Handle error */
}
if (envp != NULL) {
for (i = 0; envp[i] != NULL; i++) {
if (puts(envp[i]) == EOF) {
/* Handle error */
}
}
}
return 0;
}
|
...
Use environ in place of envp when defined.
| Code Block | ||||
|---|---|---|---|---|
| ||||
extern char **environ;
/* ... */
int main(int argc, const char *argv[]) {
size_t i;
if (setenv("MY_NEW_VAR", "new_value", 1) != 0) {
/* Handle error */
}
if (environ != NULL) {
for (i = 0; environ[i] != NULL; i++) {
if (puts(environ[i]) == EOF) {
/* Handle error */
}
}
}
return 0;
}
|
...
This noncompliant code example accesses the envp pointer after calling _putenvs().
| Code Block | ||||
|---|---|---|---|---|
| ||||
int main(int argc, const char *argv[], const char *envp[]) {
size_t i;
if (_putenv_s("MY_NEW_VAR", "new_value") != 0) {
/* Handle error */
}
if (envp != NULL) {
for (i = 0; envp[i] != NULL; i++) {
if (puts(envp[i]) == EOF) {
/* Handle error */
}
}
}
return 0;
}
|
...
Use _environ in place of envp when defined.
| Code Block | ||||
|---|---|---|---|---|
| ||||
_CRTIMP extern char **_environ;
/* ... */
int main(int argc, const char *argv[]) {
size_t i;
if (_putenv_s("MY_NEW_VAR", "new_value") != 0) {
/* Handle error */
}
if (_environ != NULL) {
for (i = 0; _environ[i] != NULL; i++) {
if (puts(_environ[i]) == EOF) {
/* Handle error */
}
}
}
return 0;
}
|
...
with
| Code Block | ||||
|---|---|---|---|---|
| ||||
#if defined (_POSIX_) || defined (__USE_POSIX)
extern char **environ;
#define envp environ
#else
_CRTIMP extern char **_environ;
#define envp _environ
#endif
int main(int argc, char *argv[]) {
/* ... */
}
|
...