/[public]/qemu-start/trunk/qemu-start.c
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Diff of /qemu-start/trunk/qemu-start.c

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Revision 301 Revision 315
… …
31#include <net/if.h> 31#include <net/if.h>
32#include <linux/if_tun.h> 32#include <linux/if_tun.h>
33#include <sys/wait.h> 33#include <sys/wait.h>
34#include <errno.h> 34#include <errno.h>
35 35
36/* Autogenerated by gengetopt */
37#include "cmdline.h"
38
36/* This define is present in recent glibc, it is not available on sarge */ 39/* This define is present in recent glibc, it is not available on sarge */
37#ifndef HOST_NAME_MAX 40#ifndef HOST_NAME_MAX
38#define HOST_NAME_MAX 64 41#define HOST_NAME_MAX 64
39#endif 42#endif
40 43
… …
187 perror("close of pfd[1] failed"); 190 perror("close of pfd[1] failed");
188 exit(1); 191 exit(1);
189 } 192 }
190 193
191 if (asprintf(&xauthfile,"%s/.Xauthority",userdata->pw_dir) < 1) { 194 if (asprintf(&xauthfile,"%s/.Xauthority",userdata->pw_dir) < 1) {
192 perror("Constructing xauthority filename failed"); 195 perror("Constructing xauthority filename failed");
193 exit(1); 196 exit(1);
194 } 197 }
195 198
196 execl("/usr/bin/X11/xauth","/usr/bin/X11/xauth","-f",xauthfile,"merge","-",NULL); 199 execl("/usr/bin/X11/xauth","/usr/bin/X11/xauth","-f",xauthfile,"merge","-",NULL);
197 exit(1); 200 exit(1);
… …
214 if (pid < 1) { 217 if (pid < 1) {
215 perror("wait failed"); 218 perror("wait failed");
216 exit(1); 219 exit(1);
217 } 220 }
218 if (! WIFEXITED(status) || WEXITSTATUS(status)) { 221 if (! WIFEXITED(status) || WEXITSTATUS(status)) {
219 fprintf(stderr,"Child returned error"); 222 fprintf(stderr,"Child returned error\n");
220 exit(1); 223 exit(1);
221 } 224 }
222 } 225 }
223} 226}
224 227
… …
228int main(int argc, char *argv[]) 231int main(int argc, char *argv[])
229{ 232{
230 struct ifreq ifr; 233 struct ifreq ifr;
231 struct passwd *userdata; 234 struct passwd *userdata;
232 char *newargs[argc + 2]; 235 char *newargs[argc + 2];
233 int i,fd,vlan,tapnr; 236 int fd,vlan,tapnr;
234 char *ptr; 237 unsigned int i;
238 unsigned new_arg_count = 5;
239 struct gengetopt_args_info args_info;
235 char *display; 240 char *display;
241 char *system;
242 char *topleft;
236 243
237 /* Check parameters */ 244 /* Ugly fix because gengetopt 2.18 does not have the `usage' option */
238 if (argc < 4) { 245 gengetopt_args_info_usage = "qemu-start [OPTIONS] -- [OPTIONS for QEMU]";
239 fprintf(stderr, "Usage: qemu-start TAPDEVNR VLAN SYSTEM <qemu options>...\n"); 246
240 fprintf(stderr, " A device tapTAPDEVNR must have been configured.\n"); 247 if (cmdline_parser(argc, argv, &args_info))
241 fprintf(stderr, " VLAN is the Virtual LAN number (just use 0 if unsure).\n"); 248 exit(1);
242 fprintf(stderr, " SYSTEM is the system to emulate. Use \"\" for the current architecture\n"); 249
243 fprintf(stderr, " (uses /usr/bin/qemm); else a binary /usr/bin/qemu-system-SYSTEM is used.\n"); 250 /* parameter: TAPDEVNR */
251 tapnr = args_info.tapnr_arg;
252
253 /* parameter: VLAN */
254 vlan = args_info.vlan_arg;
255
256 /* parameter: System type */
257 if (args_info.system_given) {
258 if (index(args_info.system_arg,'/')) {
259 fprintf(stderr, "Invalid value `%s' for system (may not contain a slash character)\n", args_info.system_arg);
244 exit(1); 260 exit(1);
245 } 261 }
262 asprintf(&system, "%s", args_info.system_arg);
263 }
246 264
247 /* First parameter: TAPDEVNR */ 265 /* parameters: Window location */
248 tapnr = strtol(argv[1],&ptr,0); 266 if (args_info.window_left_given || args_info.window_top_given) {
249 if (*ptr) { 267 if (!(args_info.window_left_given && args_info.window_top_given)) {
250 fprintf(stderr, "Invalid value `%s' for TAPDEVNR parameter (use a number!)\n",argv[1]); 268 fprintf(stderr,("If either window-left (x) or window-top (y) are given, then both must be given\n"));
251 exit(1); 269 exit(1);
252 } 270 }
253 271 if (asprintf(&topleft, "%d,%d",args_info.window_left_arg,args_info.window_top_arg) < 0) {
254 /* Second parameter: VLAN */ 272 perror("Preparing top-left environment value string failed");
255 vlan = strtol(argv[2],&ptr,0);
256 if (*ptr) {
257 fprintf(stderr, "Invalid value `%s' for VLAN parameter (use a number!)\n", argv[2]);
258 exit(1); 273 exit(1);
259 } 274 }
260
261 /* Third parameter: System type */
262 if (index(argv[3],'/')) {
263 fprintf(stderr, "Invalid value `%s' for system (may not contain a slash character)\n", argv[3]);
264 exit(1);
265 } 275 }
266 276
267 /* Export the xauth data */ 277 /* Export the xauth data */
268 fix_xauthority(); 278 fix_xauthority();
269 279
… …
320 setenv("LOGNAME",userdata->pw_name,1) || 330 setenv("LOGNAME",userdata->pw_name,1) ||
321 setenv("USER",userdata->pw_name,1)) { 331 setenv("USER",userdata->pw_name,1)) {
322 perror("Setting environment failed"); 332 perror("Setting environment failed");
323 exit(1); 333 exit(1);
324 } 334 }
335 if (args_info.window_left_given || args_info.window_top_given) {
336 if (setenv("SDL_VIDEO_WINDOW_POS", topleft, 1)) {
337 perror("Setting top-left environment value failed");
338 exit(1);
339 }
340 }
325 341
326 /* Create the right qemu invocation */ 342 /* Create the right qemu invocation */
327 if (!strlen(argv[3])) 343 if (!args_info.system_given)
328 newargs[0] = QEMU; 344 newargs[0] = QEMU;
329 else if (asprintf(&newargs[0],"%s-system-%s",QEMU,argv[3]) < 0) { 345 else if (asprintf(&newargs[0],"%s-system-%s",QEMU,args_info.system_arg) < 0) {
330 perror("Preparing qemu executable filename failed"); 346 perror("Preparing qemu executable filename failed");
331 exit(1); 347 exit(1);
332 } 348 }
333 newargs[1] = "-net"; 349 newargs[1] = "-net";
334 if (asprintf(&newargs[2],"nic,vlan=%d",vlan) < 0) { 350 if (asprintf(&newargs[2],"nic,vlan=%d",vlan) < 0) {
335 perror("Preparing nic argument failed"); 351 perror("Preparing nic argument failed");
336 exit(1); 352 exit(1);
337 } 353 }
354 if (args_info.macaddr_given) {
355 if (asprintf(&newargs[2], "%s,mac=%s", newargs[2], args_info.macaddr_arg) < 0) {
356 perror("Adding macaddress to nic argument failed");
357 }
358 }
359 if (args_info.nic_model_given) {
360 if (asprintf(&newargs[2], "%s,model=%s", newargs[2], args_info.nic_model_arg) < 0) {
361 perror("Adding nic model to nic argument failed");
362 }
363 }
338 newargs[3] = "-net"; 364 newargs[3] = "-net";
339 if (asprintf(&newargs[4],"tap,fd=%d,vlan=%d",fd,vlan) < 0) { 365 if (asprintf(&newargs[4],"tap,fd=%d,vlan=%d",fd,vlan) < 0) {
340 perror("Preparing tap argument failed"); 366 perror("Preparing tap argument failed");
341 exit(1); 367 exit(1);
342 } 368 }
343 for (i = 4; i <= argc; i++) 369 for (i = 0; i < args_info.inputs_num; i++) {
344 newargs[i+1] = argv[i]; 370 newargs[i+5] = args_info.inputs[i];
371 new_arg_count++;
372 }
373 newargs[new_arg_count] = NULL;
345 374
346 execvp(newargs[0], newargs); 375 execvp(newargs[0], newargs);
347 perror("Execution of qemu failed"); 376 perror("Execution of qemu failed");
348 exit(1); 377 exit(1);
349} 378}
350
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