libbb: new function bb_getgroups() - allocating wrapper around getgroups()

[oweals/busybox.git] / include / libbb.h

diff --git a/include/libbb.h b/include/libbb.h
index 6b33ffad62d9c733a54cab4f93743ee3684cf957..1c9de3af0d9804c389459dd5d34db65a215171bf 100644 (file)
--- a/include/libbb.h
+++ b/include/libbb.h
@@ -778,6 +778,8 @@ ssize_t recv_from_to(int fd, void *buf, size_t len, int flags,
 
 uint16_t inet_cksum(uint16_t *addr, int len) FAST_FUNC;
 
+/* 0 if argv[0] is NULL: */
+unsigned string_array_len(char **argv) FAST_FUNC;
 void overlapping_strcpy(char *dst, const char *src) FAST_FUNC;
 char *safe_strncpy(char *dst, const char *src, size_t size) FAST_FUNC;
 char *strncpy_IFNAMSIZ(char *dst, const char *src) FAST_FUNC;
@@ -1031,6 +1033,15 @@ void die_if_bad_username(const char* name) FAST_FUNC;
 #else
 #define die_if_bad_username(name) ((void)(name))
 #endif
+/*
+ * Returns (-1) terminated malloced result of getgroups().
+ * Reallocs group_array (useful for repeated calls).
+ * ngroups is an initial size of array. It is rounded up to 32 for realloc.
+ * ngroups is updated on return.
+ * ngroups can be NULL: bb_getgroups(NULL, NULL) is valid usage.
+ * Dies on errors (on Linux, only xrealloc can cause this, not internal getgroups call).
+ */
+gid_t *bb_getgroups(int *ngroups, gid_t *group_array) FAST_FUNC;
 
 #if ENABLE_FEATURE_UTMP
 void FAST_FUNC write_new_utmp(pid_t pid, int new_type, const char *tty_name, const char *username, const char *hostname);
@@ -1482,10 +1493,11 @@ extern void selinux_or_die(void) FAST_FUNC;
 void setup_environment(const char *shell, int flags, const struct passwd *pw) FAST_FUNC;
 void nuke_str(char *str) FAST_FUNC;
 #if ENABLE_FEATURE_SECURETTY && !ENABLE_PAM
-int check_securetty(const char *short_tty) FAST_FUNC;
+int is_tty_secure(const char *short_tty) FAST_FUNC;
 #else
-static ALWAYS_INLINE int check_securetty(const char *short_tty UNUSED_PARAM) { return 1; }
+static ALWAYS_INLINE int is_tty_secure(const char *short_tty UNUSED_PARAM) { return 1; }
 #endif
+#define CHECKPASS_PW_HAS_EMPTY_PASSWORD 2
 int check_password(const struct passwd *pw, const char *plaintext) FAST_FUNC;
 int ask_and_check_password_extended(const struct passwd *pw, int timeout, const char *prompt) FAST_FUNC;
 int ask_and_check_password(const struct passwd *pw) FAST_FUNC;