diff options
author | Hans-Christoph Steiner <eighthave@users.sourceforge.net> | 2005-11-14 21:59:09 +0000 |
---|---|---|
committer | Hans-Christoph Steiner <eighthave@users.sourceforge.net> | 2005-11-14 21:59:09 +0000 |
commit | c1419b43ea354fa04360450ae4f64612df065099 (patch) | |
tree | 8c38d7338e9df7e889a18dceeedb3509adbbf423 /control/shell.c | |
parent | 76be9508936fa53fe661d378ee2fc41cc9baebf3 (diff) |
these pragmas are only used for MSVC, not MinGW or Cygwin, therefore changing the define from NT to _MSC_VER
svn path=/trunk/externals/ggee/; revision=3903
Diffstat (limited to 'control/shell.c')
-rwxr-xr-x | control/shell.c | 624 |
1 files changed, 312 insertions, 312 deletions
diff --git a/control/shell.c b/control/shell.c index 78e6e03..ad989be 100755 --- a/control/shell.c +++ b/control/shell.c @@ -1,312 +1,312 @@ -/* (C) Guenter Geiger <geiger@epy.co.at> */
-
-#include <m_pd.h>
-#ifdef NT
-#pragma warning( disable : 4244 )
-#pragma warning( disable : 4305 )
-#endif
-
-#include <unistd.h>
-#include <stdlib.h>
-#include <string.h>
-#include <stdio.h>
-#include <sys/types.h>
-#include <sys/wait.h>
-#include <signal.h>
-#include <sched.h>
-
-void sys_rmpollfn(int fd);
-void sys_addpollfn(int fd, void* fn, void *ptr);
-
-/* ------------------------ shell ----------------------------- */
-
-#define INBUFSIZE 1024
-
-static t_class *shell_class;
-
-
-static void drop_priority(void)
-{
-#ifdef _POSIX_PRIORITY_SCHEDULING
- struct sched_param par;
- int p1 ,p2, p3;
- par.sched_priority = 0;
- sched_setscheduler(0,SCHED_OTHER,&par);
-#endif
-}
-
-
-typedef struct _shell
-{
- t_object x_obj;
- int x_echo;
- char *sr_inbuf;
- int sr_inhead;
- int sr_intail;
- void* x_binbuf;
- int fdpipe[2];
- int fdinpipe[2];
- int pid;
- int x_del;
- t_outlet* x_done;
- t_clock* x_clock;
-} t_shell;
-
-static int shell_pid;
-
-
-void shell_cleanup(t_shell* x)
-{
- sys_rmpollfn(x->fdpipe[0]);
-
- if (x->fdpipe[0]>0) close(x->fdpipe[0]);
- if (x->fdpipe[1]>0) close(x->fdpipe[1]);
- if (x->fdinpipe[0]>0) close(x->fdinpipe[0]);
- if (x->fdinpipe[1]>0) close(x->fdinpipe[1]);
-
- x->fdpipe[0] = -1;
- x->fdpipe[1] = -1;
- x->fdinpipe[0] = -1;
- x->fdinpipe[1] = -1;
- clock_unset(x->x_clock);
-}
-
-void shell_check(t_shell* x)
-{
- int ret;
- int status;
- ret = waitpid(x->pid,&status,WNOHANG);
- if (ret == x->pid) {
- shell_cleanup(x);
- if (WIFEXITED(status)) {
- outlet_float(x->x_done,WEXITSTATUS(status));
- }
- else outlet_float(x->x_done,0);
- }
- else {
- if (x->x_del < 100) x->x_del+=2; /* increment poll times */
- clock_delay(x->x_clock,x->x_del);
- }
-}
-
-
-void shell_bang(t_shell *x)
-{
- post("bang");
-}
-
-/* snippet from pd's code */
-static void shell_doit(void *z, t_binbuf *b)
-{
- t_shell *x = (t_shell *)z;
- int msg, natom = binbuf_getnatom(b);
- t_atom *at = binbuf_getvec(b);
-
- for (msg = 0; msg < natom;)
- {
- int emsg;
- for (emsg = msg; emsg < natom && at[emsg].a_type != A_COMMA
- && at[emsg].a_type != A_SEMI; emsg++)
- ;
- if (emsg > msg)
- {
- int i;
- for (i = msg; i < emsg; i++)
- if (at[i].a_type == A_DOLLAR || at[i].a_type == A_DOLLSYM)
- {
- pd_error(x, "netreceive: got dollar sign in message");
- goto nodice;
- }
- if (at[msg].a_type == A_FLOAT)
- {
- if (emsg > msg + 1)
- outlet_list(x->x_obj.ob_outlet, 0, emsg-msg, at + msg);
- else outlet_float(x->x_obj.ob_outlet, at[msg].a_w.w_float);
- }
- else if (at[msg].a_type == A_SYMBOL)
- outlet_anything(x->x_obj.ob_outlet, at[msg].a_w.w_symbol,
- emsg-msg-1, at + msg + 1);
- }
- nodice:
- msg = emsg + 1;
- }
-}
-
-
-void shell_read(t_shell *x, int fd)
-{
- char buf[INBUFSIZE];
- t_binbuf* bbuf = binbuf_new();
- int i;
- int readto =
- (x->sr_inhead >= x->sr_intail ? INBUFSIZE : x->sr_intail-1);
- int ret;
-
- ret = read(fd, buf,INBUFSIZE-1);
- buf[ret] = '\0';
-
- for (i=0;i<ret;i++)
- if (buf[i] == '\n') buf[i] = ';';
- if (ret < 0)
- {
- error("shell: pipe read error");
- sys_rmpollfn(fd);
- x->fdpipe[0] = -1;
- close(fd);
- return;
- }
- else if (ret == 0)
- {
- post("EOF on socket %d\n", fd);
- sys_rmpollfn(fd);
- x->fdpipe[0] = -1;
- close(fd);
- return;
- }
- else
- {
- int natom;
- t_atom *at;
- binbuf_text(bbuf, buf, strlen(buf));
-
- natom = binbuf_getnatom(bbuf);
- at = binbuf_getvec(bbuf);
- shell_doit(x,bbuf);
- }
- binbuf_free(bbuf);
-}
-
-
-static void shell_send(t_shell *x, t_symbol *s,int ac, t_atom *at)
-{
- int i;
- char tmp[MAXPDSTRING];
- int size = 0;
-
- if (x->fdinpipe[0] == -1) return; /* nothing to send to */
-
- for (i=0;i<ac;i++) {
- atom_string(at,tmp+size,MAXPDSTRING - size);
- at++;
- size=strlen(tmp);
- tmp[size++] = ' ';
- }
- tmp[size-1] = '\0';
- post("sending %s",tmp);
- write(x->fdinpipe[0],tmp,strlen(tmp));
-}
-
-static void shell_anything(t_shell *x, t_symbol *s, int ac, t_atom *at)
-{
- int i;
- char* argv[20];
- t_symbol* sym;
-
- if (!strcmp(s->s_name,"send")) {
- post("send");
- shell_send(x,s,ac,at);
- return;
- }
-
- argv[0] = s->s_name;
-
- if (x->fdpipe[0] != -1) {
- post("shell: old process still running");
- kill(x->pid,SIGKILL);
- shell_cleanup(x);
- }
-
-
- if (pipe(x->fdpipe) < 0) {
- error("unable to create pipe");
- return;
- }
-
- if (pipe(x->fdinpipe) < 0) {
- error("unable to create input pipe");
- return;
- }
-
-
- sys_addpollfn(x->fdpipe[0],shell_read,x);
-
- if (!(x->pid = fork())) {
- int status;
- char* cmd = getbytes(1024);
- char* tcmd = getbytes(1024);
- strcpy(cmd,s->s_name);
-
-#if 0
- for (i=1;i<=ac;i++) {
- argv[i] = getbytes(255);
- atom_string(at,argv[i],255);
-/* post("argument %s",argv[i]); */
- at++;
- }
- argv[i] = 0;
-#endif
- for (i=1;i<=ac;i++) {
- atom_string(at,tcmd,255);
- strcat(cmd," ");
- strcat(cmd,tcmd);
- at++;
- }
-
-
- /* reassign stdout */
- dup2(x->fdpipe[1],1);
- dup2(x->fdinpipe[1],0);
-
- /* drop privileges */
- drop_priority();
- seteuid(getuid()); /* lose setuid priveliges */
-
- post("executing %s",cmd);
- system(cmd);
-// execvp(s->s_name,argv);
- exit(0);
- }
- x->x_del = 4;
- clock_delay(x->x_clock,x->x_del);
-
- if (x->x_echo)
- outlet_anything(x->x_obj.ob_outlet, s, ac, at);
-}
-
-
-
-void shell_free(t_shell* x)
-{
- binbuf_free(x->x_binbuf);
-}
-
-static void *shell_new(void)
-{
- t_shell *x = (t_shell *)pd_new(shell_class);
-
- x->x_echo = 0;
- x->fdpipe[0] = -1;
- x->fdpipe[1] = -1;
- x->fdinpipe[0] = -1;
- x->fdinpipe[1] = -1;
-
- x->sr_inhead = x->sr_intail = 0;
- if (!(x->sr_inbuf = (char*) malloc(INBUFSIZE))) bug("t_shell");;
-
- x->x_binbuf = binbuf_new();
-
- outlet_new(&x->x_obj, &s_list);
- x->x_done = outlet_new(&x->x_obj, &s_bang);
- x->x_clock = clock_new(x, (t_method) shell_check);
- return (x);
-}
-
-void shell_setup(void)
-{
- shell_class = class_new(gensym("shell"), (t_newmethod)shell_new,
- (t_method)shell_free,sizeof(t_shell), 0,0);
- class_addbang(shell_class,shell_bang);
- class_addanything(shell_class, shell_anything);
-}
-
-
+/* (C) Guenter Geiger <geiger@epy.co.at> */ + +#include <m_pd.h> +#ifdef _MSC_VER +#pragma warning( disable : 4244 ) +#pragma warning( disable : 4305 ) +#endif + +#include <unistd.h> +#include <stdlib.h> +#include <string.h> +#include <stdio.h> +#include <sys/types.h> +#include <sys/wait.h> +#include <signal.h> +#include <sched.h> + +void sys_rmpollfn(int fd); +void sys_addpollfn(int fd, void* fn, void *ptr); + +/* ------------------------ shell ----------------------------- */ + +#define INBUFSIZE 1024 + +static t_class *shell_class; + + +static void drop_priority(void) +{ +#ifdef _POSIX_PRIORITY_SCHEDULING + struct sched_param par; + int p1 ,p2, p3; + par.sched_priority = 0; + sched_setscheduler(0,SCHED_OTHER,&par); +#endif +} + + +typedef struct _shell +{ + t_object x_obj; + int x_echo; + char *sr_inbuf; + int sr_inhead; + int sr_intail; + void* x_binbuf; + int fdpipe[2]; + int fdinpipe[2]; + int pid; + int x_del; + t_outlet* x_done; + t_clock* x_clock; +} t_shell; + +static int shell_pid; + + +void shell_cleanup(t_shell* x) +{ + sys_rmpollfn(x->fdpipe[0]); + + if (x->fdpipe[0]>0) close(x->fdpipe[0]); + if (x->fdpipe[1]>0) close(x->fdpipe[1]); + if (x->fdinpipe[0]>0) close(x->fdinpipe[0]); + if (x->fdinpipe[1]>0) close(x->fdinpipe[1]); + + x->fdpipe[0] = -1; + x->fdpipe[1] = -1; + x->fdinpipe[0] = -1; + x->fdinpipe[1] = -1; + clock_unset(x->x_clock); +} + +void shell_check(t_shell* x) +{ + int ret; + int status; + ret = waitpid(x->pid,&status,WNOHANG); + if (ret == x->pid) { + shell_cleanup(x); + if (WIFEXITED(status)) { + outlet_float(x->x_done,WEXITSTATUS(status)); + } + else outlet_float(x->x_done,0); + } + else { + if (x->x_del < 100) x->x_del+=2; /* increment poll times */ + clock_delay(x->x_clock,x->x_del); + } +} + + +void shell_bang(t_shell *x) +{ + post("bang"); +} + +/* snippet from pd's code */ +static void shell_doit(void *z, t_binbuf *b) +{ + t_shell *x = (t_shell *)z; + int msg, natom = binbuf_getnatom(b); + t_atom *at = binbuf_getvec(b); + + for (msg = 0; msg < natom;) + { + int emsg; + for (emsg = msg; emsg < natom && at[emsg].a_type != A_COMMA + && at[emsg].a_type != A_SEMI; emsg++) + ; + if (emsg > msg) + { + int i; + for (i = msg; i < emsg; i++) + if (at[i].a_type == A_DOLLAR || at[i].a_type == A_DOLLSYM) + { + pd_error(x, "netreceive: got dollar sign in message"); + goto nodice; + } + if (at[msg].a_type == A_FLOAT) + { + if (emsg > msg + 1) + outlet_list(x->x_obj.ob_outlet, 0, emsg-msg, at + msg); + else outlet_float(x->x_obj.ob_outlet, at[msg].a_w.w_float); + } + else if (at[msg].a_type == A_SYMBOL) + outlet_anything(x->x_obj.ob_outlet, at[msg].a_w.w_symbol, + emsg-msg-1, at + msg + 1); + } + nodice: + msg = emsg + 1; + } +} + + +void shell_read(t_shell *x, int fd) +{ + char buf[INBUFSIZE]; + t_binbuf* bbuf = binbuf_new(); + int i; + int readto = + (x->sr_inhead >= x->sr_intail ? INBUFSIZE : x->sr_intail-1); + int ret; + + ret = read(fd, buf,INBUFSIZE-1); + buf[ret] = '\0'; + + for (i=0;i<ret;i++) + if (buf[i] == '\n') buf[i] = ';'; + if (ret < 0) + { + error("shell: pipe read error"); + sys_rmpollfn(fd); + x->fdpipe[0] = -1; + close(fd); + return; + } + else if (ret == 0) + { + post("EOF on socket %d\n", fd); + sys_rmpollfn(fd); + x->fdpipe[0] = -1; + close(fd); + return; + } + else + { + int natom; + t_atom *at; + binbuf_text(bbuf, buf, strlen(buf)); + + natom = binbuf_getnatom(bbuf); + at = binbuf_getvec(bbuf); + shell_doit(x,bbuf); + } + binbuf_free(bbuf); +} + + +static void shell_send(t_shell *x, t_symbol *s,int ac, t_atom *at) +{ + int i; + char tmp[MAXPDSTRING]; + int size = 0; + + if (x->fdinpipe[0] == -1) return; /* nothing to send to */ + + for (i=0;i<ac;i++) { + atom_string(at,tmp+size,MAXPDSTRING - size); + at++; + size=strlen(tmp); + tmp[size++] = ' '; + } + tmp[size-1] = '\0'; + post("sending %s",tmp); + write(x->fdinpipe[0],tmp,strlen(tmp)); +} + +static void shell_anything(t_shell *x, t_symbol *s, int ac, t_atom *at) +{ + int i; + char* argv[20]; + t_symbol* sym; + + if (!strcmp(s->s_name,"send")) { + post("send"); + shell_send(x,s,ac,at); + return; + } + + argv[0] = s->s_name; + + if (x->fdpipe[0] != -1) { + post("shell: old process still running"); + kill(x->pid,SIGKILL); + shell_cleanup(x); + } + + + if (pipe(x->fdpipe) < 0) { + error("unable to create pipe"); + return; + } + + if (pipe(x->fdinpipe) < 0) { + error("unable to create input pipe"); + return; + } + + + sys_addpollfn(x->fdpipe[0],shell_read,x); + + if (!(x->pid = fork())) { + int status; + char* cmd = getbytes(1024); + char* tcmd = getbytes(1024); + strcpy(cmd,s->s_name); + +#if 0 + for (i=1;i<=ac;i++) { + argv[i] = getbytes(255); + atom_string(at,argv[i],255); +/* post("argument %s",argv[i]); */ + at++; + } + argv[i] = 0; +#endif + for (i=1;i<=ac;i++) { + atom_string(at,tcmd,255); + strcat(cmd," "); + strcat(cmd,tcmd); + at++; + } + + + /* reassign stdout */ + dup2(x->fdpipe[1],1); + dup2(x->fdinpipe[1],0); + + /* drop privileges */ + drop_priority(); + seteuid(getuid()); /* lose setuid priveliges */ + + post("executing %s",cmd); + system(cmd); +// execvp(s->s_name,argv); + exit(0); + } + x->x_del = 4; + clock_delay(x->x_clock,x->x_del); + + if (x->x_echo) + outlet_anything(x->x_obj.ob_outlet, s, ac, at); +} + + + +void shell_free(t_shell* x) +{ + binbuf_free(x->x_binbuf); +} + +static void *shell_new(void) +{ + t_shell *x = (t_shell *)pd_new(shell_class); + + x->x_echo = 0; + x->fdpipe[0] = -1; + x->fdpipe[1] = -1; + x->fdinpipe[0] = -1; + x->fdinpipe[1] = -1; + + x->sr_inhead = x->sr_intail = 0; + if (!(x->sr_inbuf = (char*) malloc(INBUFSIZE))) bug("t_shell");; + + x->x_binbuf = binbuf_new(); + + outlet_new(&x->x_obj, &s_list); + x->x_done = outlet_new(&x->x_obj, &s_bang); + x->x_clock = clock_new(x, (t_method) shell_check); + return (x); +} + +void shell_setup(void) +{ + shell_class = class_new(gensym("shell"), (t_newmethod)shell_new, + (t_method)shell_free,sizeof(t_shell), 0,0); + class_addbang(shell_class,shell_bang); + class_addanything(shell_class, shell_anything); +} + + |