FreeCalypso > hg > freecalypso-tools
view loadtools/secondprog.c @ 666:51bcfb251b23
fc-loadtool flash program-m0 changed to use binary protocol
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Sat, 07 Mar 2020 19:28:09 +0000 |
parents | 064d4eedb3a6 |
children |
line wrap: on
line source
/* * This module contains the code for passing the serial channel to a * second program, used by fc-iram and fc-xram. */ #include <stdio.h> #include <stdlib.h> #include <unistd.h> extern char **passon_argv; extern int passon_argc; exec_2nd_prog() { char **execp_argv; char **sp, **dp; extern int target_fd; char desc_arg[16]; sprintf(desc_arg, "-d%d", target_fd); execp_argv = (char **) malloc(sizeof(char *) * (passon_argc + 2)); if (!execp_argv) { perror("malloc argv for execvp"); exit(1); } sp = passon_argv; dp = execp_argv; *dp++ = *sp++; *dp++ = desc_arg; while (*sp) *dp++ = *sp++; *dp = NULL; execvp(execp_argv[0], execp_argv); fprintf(stderr, "Unable to execvp %s\n", passon_argv[0]); exit(1); }