diff options
Diffstat (limited to 'src/include/xfuncs.h')
| -rw-r--r-- | src/include/xfuncs.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/src/include/xfuncs.h b/src/include/xfuncs.h index 61188c81..5f2504b6 100644 --- a/src/include/xfuncs.h +++ b/src/include/xfuncs.h @@ -74,6 +74,19 @@ char* xasprintf(const char *format, ...); #define xsetenv abrt_xsetenv void xsetenv(const char *key, const char *value); +/* + * Utility function to unsetenv a string which was possibly putenv'ed. + * The problem here is that "natural" optimization: + * strchrnul(var_val, '=')[0] = '\0'; + * unsetenv(var_val); + * is BUGGY: if string was put into environment via putenv, + * its modification (s/=/NUL/) is illegal, and unsetenv will fail to unset it. + * Of course, saving/restoring the char wouldn't work either. + * This helper creates a copy up to '=', unsetenv's it, and frees: + */ +#define safe_unsetenv abrt_safe_unsetenv +void safe_unsetenv(const char *var_val); + #define xsocket abrt_xsocket int xsocket(int domain, int type, int protocol); #define xbind abrt_xbind |