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[/] [or1k/] [tags/] [stable_0_2_0/] [or1ksim/] [peripheral/] [channels/] [xterm.c] - Diff between revs 1070 and 1118

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Rev 1070	Rev 1118
Line 45...	Line 45...
`#include "channel.h"`	`#include "channel.h"`
`#include "generic.h"`	`#include "generic.h"`
`#include "fd.h"`	`#include "fd.h"`



`struct xterm_channel`	`struct xterm_channel`
`{`	`{`
`struct fd_channel fds;`	`struct fd_channel fds;`
`int pid;`	`int pid;`
	`char** argv;`
`};`	`};`


`static void xterm_close(void * data)`	`static void xterm_close(void * data)`
`{`	`{`
Line 68...	Line 70...
`{`	`{`
`kill(xt->pid, SIGKILL);`	`kill(xt->pid, SIGKILL);`
`waitpid(xt->pid, NULL, 0);`	`waitpid(xt->pid, NULL, 0);`
`}`	`}`

	`if (xt->argv)`
	`free (xt->argv);`

`xt->fds.fdin = -1;`	`xt->fds.fdin = -1;`
`xt->fds.fdout = -1;`	`xt->fds.fdout = -1;`
`xt->pid = -1;`	`xt->pid = -1;`
	`xt->argv = NULL;`

`}`	`}`

`static void xterm_exit(int i, void * data)`	`static void xterm_exit(int i, void * data)`
`{`	`{`
`xterm_close(data);`	`xterm_close(data);`
`}`	`}`

	`#define MAX_XTERM_ARGS 100`
`static void * xterm_init(const char * input)`	`static void * xterm_init(const char * input)`
`{`	`{`
`struct xterm_channel * retval = malloc(sizeof(struct xterm_channel));`	`struct xterm_channel * retval = malloc(sizeof(struct xterm_channel));`
`if(retval)`	`if(retval)`
`{`	`{`
`retval->fds.fdin = -1;`	`retval->fds.fdin = -1;`
`retval->fds.fdout = -1;`	`retval->fds.fdout = -1;`
`retval->pid = -1;`	`retval->pid = -1;`
`/* reset cause exit(1), leaving an xterm opened */`	`/* reset cause exit(1), leaving an xterm opened */`
`on_exit(xterm_exit, retval);`	`on_exit(xterm_exit, retval);`

	`int i = 2;`
	`char arglist = (char)input;`
	`retval->argv = malloc(sizeof(char) MAX_XTERM_ARGS);`
	`if (!retval->argv) {`
	`free(retval);`
	`return NULL;`
	`}`
	`/* Assume xterm arguments are separated by whitespace */`
	`while (retval->argv[i++] = strtok(arglist, " \t\n")) {`
	`arglist = NULL;`
	`if (i == MAX_XTERM_ARGS - 1) {`
	`free(retval);`
	`return NULL;`
	`}`
	`}`

`}`	`}`
`return (void*)retval;`	`return (void*)retval;`
`}`	`}`


Line 108...	Line 133...
`{`	`{`
`errno = ENODEV;`	`errno = ENODEV;`
`return -1;`	`return -1;`
`}`	`}`


`master = open("/dev/ptmx", O_RDWR);`	`master = open("/dev/ptmx", O_RDWR);`

`if(master < 0)`	`if(master < 0)`
`return -1;`	`return -1;`

Line 127...	Line 151...
`}`	`}`

`xt->fds.fdout = xt->fds.fdin = open(slavename, O_RDWR);`	`xt->fds.fdout = xt->fds.fdin = open(slavename, O_RDWR);`
`if(xt->fds.fdout < 0) goto closemastererror;`	`if(xt->fds.fdout < 0) goto closemastererror;`

	`#ifndef linux`
	`/* Linux does not support STREAMS-style line discipline, even with LiS. */`
`retval = ioctl(xt->fds.fdin, I_PUSH, "ptem");`	`retval = ioctl(xt->fds.fdin, I_PUSH, "ptem");`
`if(retval < 0) goto closeslaveerror;`	`if(retval < 0) goto closeslaveerror;`

`retval = ioctl(xt->fds.fdin, I_PUSH, "ldterm");`	`retval = ioctl(xt->fds.fdin, I_PUSH, "ldterm");`
`if(retval < 0) goto closeslaveerror;`	`if(retval < 0) goto closeslaveerror;`
	`#endif`

`retval = tcgetattr(xt->fds.fdin, &termio);`	`retval = tcgetattr(xt->fds.fdin, &termio);`
`if(retval < 0) goto closeslaveerror;`	`if(retval < 0) goto closeslaveerror;`


`termio.c_lflag &= ~ECHO;`	`termio.c_lflag &= ~ECHO;`
`retval = tcsetattr(xt->fds.fdin, TCSADRAIN, &termio);`	`retval = tcsetattr(xt->fds.fdin, TCSADRAIN, &termio);`
`if(retval < 0) goto closeslaveerror;`	`if(retval < 0) goto closeslaveerror;`

`xt->pid = fork();`	`xt->pid = fork();`
Line 161...	Line 186...
`}`	`}`
`else`	`else`
`{`	`{`
`sprintf(arg, "-S%c%c%d", fin[0], fin[1], master);`	`sprintf(arg, "-S%c%c%d", fin[0], fin[1], master);`
`}`	`}`
`execlp("xterm", "xterm", arg, NULL);`	`xt->argv[0] = "xterm";`
	`xt->argv[1] = arg;`
	`execvp("xterm", xt->argv);`
`write(master, "\n", 1);`	`write(master, "\n", 1);`
`exit(1);`	`exit(1);`
`}`	`}`

`do retval = read(xt->fds.fdin, &arg, 1);`	`do retval = read(xt->fds.fdin, &arg, 1);`
`while(retval >= 0 && arg[0] != '\n');`	`while(retval >= 0 && arg[0] != '\n');`

`if(retval < 0) goto closeslaveerror;`	`if(retval < 0) goto closeslaveerror;`

`termio.c_lflag \|= ECHO;`	`termio.c_lflag \|= ECHO;`
`retval = tcsetattr(xt->fds.fdin, TCSADRAIN, &termio);`	`retval = tcsetattr(xt->fds.fdin, TCSADRAIN, &termio);`

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[/] [or1k/] [tags/] [stable_0_2_0/] [or1ksim/] [peripheral/] [channels/] [xterm.c] - Diff between revs 1070 and 1118