| Synopsis: | Don't use the functions strerror and strtok, instead use their re-entrant counterparts strerror_r and strtok_r. |
| Language: | C |
| Severity Level: | 4 |
| Category: | Library |
| Description: |
Justification Non-reentrant functions can cause problems when multiple threads are used or memory is shared between tasks. Example token = strtok(string, delimiters); /* WRONG */ token = strtok(NULL, delimiters); /* WRONG */ char *save_ptr; token = strtok_r(string, delimiters, &save_ptr); /* RIGHT */ token = strtok_r(NULL, delimiters, &save_ptr); /* RIGHT */ |