fuchsia: allow arbitrary usernames < 32 chars
This opens the door for later changes wherein we'd want user specific
username.
Change-Id: I82204e454408e1772d18394eb4e031550df43ba2
diff --git a/fuchsia/fuchsia-compat.c b/fuchsia/fuchsia-compat.c
index 3aed8d9..9d28402 100644
--- a/fuchsia/fuchsia-compat.c
+++ b/fuchsia/fuchsia-compat.c
@@ -59,26 +59,31 @@
return 0;
}
-struct passwd* getpwent(void) {
- static struct passwd static_passwd = {
- .pw_name = "fuchsia",
- .pw_passwd = "",
- .pw_uid = 23, // matches ZX_UID
- .pw_gid = 23,
- .pw_gecos = "Fuchsia",
- .pw_dir = "/",
- .pw_shell = "/boot/bin/sh",
- };
+#define USERNAME_MAX 32
+static char username[USERNAME_MAX + 1] = { 'f', 'u', 'c', 'h', 's', 'i', 'a', 0 };
+static struct passwd static_passwd = {
+ .pw_name = username,
+ .pw_passwd = "",
+ .pw_uid = 23, // matches ZX_UID
+ .pw_gid = 23,
+ .pw_gecos = "Fuchsia",
+ .pw_dir = "/",
+ .pw_shell = "/boot/bin/sh",
+};
+struct passwd* getpwnam(const char* name) {
+ size_t len = strlen(name);
+ if (len > USERNAME_MAX) {
+ errno = EINVAL;
+ return NULL;
+ }
+ strncpy(username, name, len);
+ username[len] = 0;
return &static_passwd;
}
-struct passwd* getpwnam(const char* name) {
- return getpwent();
-}
-
struct passwd* getpwuid(uid_t uid) {
- return getpwent();
+ return &static_passwd;
}
#define ARGV_MAX 256
