read_one_char     746 src/cgtop/cgtop.c                         r = read_one_char(stdin, &key,
read_one_char      71 src/firstboot/firstboot.c         (void) read_one_char(stdin, &k, USEC_INFINITY, &need_nl);
read_one_char    1719 src/shared/util.c                 r = read_one_char(stdin, &c, USEC_INFINITY, &need_nl);
read_one_char     401 src/shared/util.h int read_one_char(FILE *f, char *ret, usec_t timeout, bool *need_nl);