implement youruid and yourgid to avoid 66 dependency

src/extra-tools/execl-subuidgid.c

@@ -15,6 +15,8 @@
 #include <unistd.h>
 #include <sys/types.h>
 #include <stdio.h>
+#include <errno.h>
+#include <pwd.h>
 
 #include <oblibs/error2.h>
 #include <oblibs/environ.h>
@@ -28,8 +30,6 @@
 #include <skalibs/djbunix.h>
 
 #include <execline/execline.h>
-#include <66/environ.h>
-#include <66/utils.h>
 
 #define USAGE "execl-subuidgid [ -h ] [ -o owner ] prog..."
 
@@ -47,6 +47,40 @@ static inline void info_help (void)
     strerr_diefu1sys(111, "write to stdout") ;
 }
 
+/** Implement again this function coming from
+ * 66. This is avoid the dependency from it*/
+static int youruid(uid_t *passto,char const *owner)
+{
+	int e ;
+	e = errno ;
+	errno = 0 ;
+	struct passwd *st ;
+	if (!(st = getpwnam(owner)) || errno)
+	{
+		if (!errno) errno = EINVAL ;
+		return 0 ;
+	}
+	*passto = st->pw_uid ;
+	errno = e ;
+	return 1 ;
+}
+
+static int yourgid(gid_t *passto,uid_t owner)
+{
+	int e ;
+	e = errno ;
+	errno = 0 ;
+	struct passwd *st ;
+	if (!(st = getpwuid(owner)) || errno)
+	{
+		if (!errno) errno = EINVAL ;
+		return 0 ;
+	}
+	*passto = st->pw_gid ;
+	errno = e ;
+	return 1 ;
+}
+
 int main (int argc, char const **argv, char const *const *envp)
 {
 	uid_t uid ;