bool shellout_write(const char *cmd, list_t *seeked, int nlines)
{
ui_term();
FILE *subp = popen(cmd, "w");
if(!subp){
fprintf(stderr, "fork/exec: %s", strerror(errno));
return false;
}
int r = list_write_file(seeked, nlines, subp, /*eol*/true);
int errno_write = errno;
int waitret = pclose(subp);
int errno_wait = errno;
if(r){
fprintf(stderr, "write subprocess: %s", strerror(errno_write));
return false;
}
if(WIFEXITED(waitret)){
int ec = WEXITSTATUS(waitret);
if(ec)
fprintf(stderr, "command returned %d\n", ec);
}else if(WIFSIGNALED(waitret)){
fprintf(stderr, "command signalled with %d\n", WTERMSIG(waitret));
}else if(WIFSTOPPED(waitret)){
fprintf(stderr, "command stopped with %d\n", WSTOPSIG(waitret));
}else{
fprintf(stderr, "unknown state from wait()/pclose(): %d: %s",
waitret, strerror(errno_wait));
}
shellout_wait_ret();
return true;
}
int main(int argc, char **argv)
{
int i;
unsigned offset = 0;
enum windows_init_args initargs = WIN_NONE;
for(i = 1; i < argc; i++){
if(!strcmp(argv[i], "-O")){
initargs = WIN_VALL;
}else if(!strcmp(argv[i], "-o")){
initargs = WIN_HALL;
}else if(*argv[i] == '+'){
char *p = argv[i] + 1;
while(isdigit(*p))
p++;
if(*p == '\0' && sscanf(argv[i]+1, "%u", &offset) == 1){
/* continue */
if(offset > 0)
offset--; /* 1-base -> 0-base */
}else{
break;
}
}else{
break;
}
}
ui_init(); /* must be before buffers_init() */
windows_init(argc - i, argv + i, initargs, offset);
int r = ui_main();
ui_term();
windows_term();
return r;
}
int shellout(const char *cmd)
{
const char *shcmd;
int r;
if(cmd){
shcmd = cmd;
}else{
const char *shell = getenv("SHELL");
if(!shell)
shell = "sh";
shcmd = shell;
}
ui_term();
r = system(shcmd);
shellout_wait_ret();
ui_init();
return r;
}
