1 /* $OpenBSD: sendbug.c,v 1.31 2007/03/26 18:13:08 moritz Exp $ */ 2 3 /* 4 * Written by Ray Lai <ray@cyth.net>. 5 * Public domain. 6 */ 7 8 #include <sys/types.h> 9 #include <sys/mman.h> 10 #include <sys/param.h> 11 #include <sys/stat.h> 12 #include <sys/sysctl.h> 13 #include <sys/wait.h> 14 15 #include <ctype.h> 16 #include <err.h> 17 #include <errno.h> 18 #include <fcntl.h> 19 #include <limits.h> 20 #include <paths.h> 21 #include <pwd.h> 22 #include <signal.h> 23 #include <stdio.h> 24 #include <stdlib.h> 25 #include <string.h> 26 #include <unistd.h> 27 28 #include "atomicio.h" 29 30 int editit(char *); 31 void init(void); 32 int prompt(void); 33 int send_file(const char *, int dst); 34 int sendmail(const char *); 35 void template(FILE *); 36 37 const char *categories = "system user library documentation ports kernel " 38 "alpha amd64 arm i386 m68k m88k mips ppc sgi sparc sparc64 vax"; 39 char *version = "4.2"; 40 41 struct passwd *pw; 42 char os[BUFSIZ], rel[BUFSIZ], mach[BUFSIZ], details[BUFSIZ]; 43 char *fullname, *tmppath; 44 int wantcleanup; 45 46 __dead void 47 usage(void) 48 { 49 fprintf(stderr, "usage: sendbug [-LPV]\n"); 50 exit(1); 51 } 52 53 void 54 cleanup() 55 { 56 if (wantcleanup && tmppath && unlink(tmppath) == -1) 57 warn("unlink"); 58 } 59 60 61 int 62 main(int argc, char *argv[]) 63 { 64 int ch, c, fd, ret = 1; 65 const char *tmpdir; 66 struct stat sb; 67 char *pr_form; 68 time_t mtime; 69 FILE *fp; 70 71 while ((ch = getopt(argc, argv, "LPV")) != -1) 72 switch (ch) { 73 case 'L': 74 printf("Known categories:\n"); 75 printf("%s\n\n", categories); 76 exit(0); 77 case 'P': 78 init(); 79 template(stdout); 80 exit(0); 81 case 'V': 82 printf("%s\n", version); 83 exit(0); 84 default: 85 usage(); 86 } 87 88 if (argc > 1) { 89 usage(); 90 } 91 92 if ((tmpdir = getenv("TMPDIR")) == NULL || tmpdir[0] == '\0') 93 tmpdir = _PATH_TMP; 94 if (asprintf(&tmppath, "%s%sp.XXXXXXXXXX", tmpdir, 95 tmpdir[strlen(tmpdir) - 1] == '/' ? "" : "/") == -1) 96 err(1, "asprintf"); 97 if ((fd = mkstemp(tmppath)) == -1) 98 err(1, "mkstemp"); 99 wantcleanup = 1; 100 atexit(cleanup); 101 if ((fp = fdopen(fd, "w+")) == NULL) 102 err(1, "fdopen"); 103 104 init(); 105 106 pr_form = getenv("PR_FORM"); 107 if (pr_form) { 108 char buf[BUFSIZ]; 109 size_t len; 110 FILE *frfp; 111 112 frfp = fopen(pr_form, "r"); 113 if (frfp == NULL) { 114 fprintf(stderr, "sendbug: can't seem to read your" 115 " template file (`%s'), ignoring PR_FORM\n", 116 pr_form); 117 template(fp); 118 } else { 119 while (!feof(frfp)) { 120 len = fread(buf, 1, sizeof buf, frfp); 121 if (len == 0) 122 break; 123 if (fwrite(buf, 1, len, fp) != len) 124 break; 125 } 126 fclose(frfp); 127 } 128 } else 129 template(fp); 130 131 if (fflush(fp) == EOF || fstat(fd, &sb) == -1 || fclose(fp) == EOF) 132 err(1, "error creating template"); 133 mtime = sb.st_mtime; 134 135 edit: 136 if (editit(tmppath) == -1 && errno != ECHILD) 137 err(1, "error running editor"); 138 139 if (stat(tmppath, &sb) == -1) 140 err(1, "stat"); 141 if (mtime == sb.st_mtime) 142 errx(1, "report unchanged, nothing sent"); 143 144 prompt: 145 c = prompt(); 146 switch (c) { 147 case 'a': 148 case EOF: 149 wantcleanup = 0; 150 errx(1, "unsent report in %s", tmppath); 151 case 'e': 152 goto edit; 153 case 's': 154 if (sendmail(tmppath) == -1) 155 goto quit; 156 break; 157 default: 158 goto prompt; 159 } 160 161 ret = 0; 162 quit: 163 return (ret); 164 } 165 166 int 167 editit(char *tmpfile) 168 { 169 char *argp[] = {"sh", "-c", NULL, NULL}, *ed, *p; 170 sig_t sighup, sigint, sigquit; 171 pid_t pid, xpid; 172 int st; 173 174 ed = getenv("VISUAL"); 175 if (ed == NULL || ed[0] == '\0') 176 ed = getenv("EDITOR"); 177 if (ed == NULL || ed[0] == '\0') 178 ed = _PATH_VI; 179 if (asprintf(&p, "%s %s", ed, tmpfile) == -1) 180 return (-1); 181 argp[2] = p; 182 183 top: 184 sighup = signal(SIGHUP, SIG_IGN); 185 sigint = signal(SIGINT, SIG_IGN); 186 sigquit = signal(SIGQUIT, SIG_IGN); 187 if ((pid = fork()) == -1) { 188 int saved_errno = errno; 189 190 (void)signal(SIGHUP, sighup); 191 (void)signal(SIGINT, sigint); 192 (void)signal(SIGQUIT, sigquit); 193 if (saved_errno == EAGAIN) { 194 sleep(1); 195 goto top; 196 } 197 free(p); 198 errno = saved_errno; 199 return (-1); 200 } 201 if (pid == 0) { 202 execv(_PATH_BSHELL, argp); 203 _exit(127); 204 } 205 free(p); 206 for (;;) { 207 xpid = waitpid(pid, &st, WUNTRACED); 208 if (xpid == -1) { 209 if (errno != EINTR) 210 return (-1); 211 } else if (WIFSTOPPED(st)) 212 raise(WSTOPSIG(st)); 213 else 214 break; 215 } 216 (void)signal(SIGHUP, sighup); 217 (void)signal(SIGINT, sigint); 218 (void)signal(SIGQUIT, sigquit); 219 if (!WIFEXITED(st) || WEXITSTATUS(st) != 0) { 220 errno = ECHILD; 221 return (-1); 222 } 223 return (0); 224 } 225 226 int 227 prompt(void) 228 { 229 int c, ret; 230 231 fpurge(stdin); 232 fprintf(stderr, "a)bort, e)dit, or s)end: "); 233 fflush(stderr); 234 ret = getchar(); 235 if (ret == EOF || ret == '\n') 236 return (ret); 237 do { 238 c = getchar(); 239 } while (c != EOF && c != '\n'); 240 return (ret); 241 } 242 243 int 244 sendmail(const char *tmppath) 245 { 246 int filedes[2]; 247 248 if (pipe(filedes) == -1) { 249 warn("pipe: unsent report in %s", tmppath); 250 return (-1); 251 } 252 switch (fork()) { 253 case -1: 254 warn("fork error: unsent report in %s", 255 tmppath); 256 return (-1); 257 case 0: 258 close(filedes[1]); 259 if (dup2(filedes[0], STDIN_FILENO) == -1) { 260 warn("dup2 error: unsent report in %s", 261 tmppath); 262 return (-1); 263 } 264 close(filedes[0]); 265 execl("/usr/sbin/sendmail", "sendmail", 266 "-oi", "-t", (void *)NULL); 267 warn("sendmail error: unsent report in %s", 268 tmppath); 269 return (-1); 270 default: 271 close(filedes[0]); 272 /* Pipe into sendmail. */ 273 if (send_file(tmppath, filedes[1]) == -1) { 274 warn("send_file error: unsent report in %s", 275 tmppath); 276 return (-1); 277 } 278 close(filedes[1]); 279 wait(NULL); 280 break; 281 } 282 return (0); 283 } 284 285 void 286 init(void) 287 { 288 size_t amp, len, namelen; 289 const char *src; 290 int sysname[2]; 291 char *dst, *cp; 292 293 if ((pw = getpwuid(getuid())) == NULL) 294 err(1, "getpwuid"); 295 namelen = strlen(pw->pw_name); 296 297 /* Count number of '&'. */ 298 for (amp = 0, src = pw->pw_gecos; *src && *src != ','; ++src) 299 if (*src == '&') 300 ++amp; 301 /* Expanded str = orig str - '&' chars + concatenated logins. */ 302 len = (src - pw->pw_gecos) - amp + (amp * namelen); 303 if ((fullname = malloc(len + 1)) == NULL) 304 err(1, "malloc"); 305 306 dst = fullname; 307 src = pw->pw_gecos; 308 while (*src != ',' && *src != '\0') { 309 /* Copy text up to ',' or '&' and skip. */ 310 len = strcspn(src, ",&"); 311 memcpy(dst, src, len); 312 dst += len; 313 src += len; 314 /* Replace '&' with login. */ 315 if (*src == '&') { 316 memcpy(dst, pw->pw_name, namelen); 317 *dst = toupper((unsigned char)*dst); 318 dst += namelen; 319 ++src; 320 } 321 } 322 *dst = '\0'; 323 324 sysname[0] = CTL_KERN; 325 sysname[1] = KERN_OSTYPE; 326 len = sizeof(os) - 1; 327 if (sysctl(sysname, 2, &os, &len, NULL, 0) == -1) 328 err(1, "sysctl"); 329 330 sysname[0] = CTL_KERN; 331 sysname[1] = KERN_OSRELEASE; 332 len = sizeof(rel) - 1; 333 if (sysctl(sysname, 2, &rel, &len, NULL, 0) == -1) 334 err(1, "sysctl"); 335 336 sysname[0] = CTL_KERN; 337 sysname[1] = KERN_VERSION; 338 len = sizeof(details) - 1; 339 if (sysctl(sysname, 2, &details, &len, NULL, 0) == -1) 340 err(1, "sysctl"); 341 342 cp = strchr(details, '\n'); 343 if (cp) { 344 cp++; 345 if (*cp) 346 *cp++ = '\t'; 347 if (*cp) 348 *cp++ = '\t'; 349 if (*cp) 350 *cp++ = '\t'; 351 } 352 353 sysname[0] = CTL_HW; 354 sysname[1] = HW_MACHINE; 355 len = sizeof(mach) - 1; 356 if (sysctl(sysname, 2, &mach, &len, NULL, 0) == -1) 357 err(1, "sysctl"); 358 } 359 360 int 361 send_file(const char *file, int dst) 362 { 363 int blank = 0; 364 size_t len; 365 char *buf; 366 FILE *fp; 367 368 if ((fp = fopen(file, "r")) == NULL) 369 return (-1); 370 while ((buf = fgetln(fp, &len))) { 371 /* Skip lines starting with "SENDBUG". */ 372 if (len >= sizeof("SENDBUG") - 1 && 373 memcmp(buf, "SENDBUG", sizeof("SENDBUG") - 1) == 0) 374 continue; 375 if (len == 1 && buf[0] == '\n') 376 blank = 1; 377 /* Skip comments, but only if we encountered a blank line. */ 378 while (len) { 379 char *sp = NULL, *ep = NULL; 380 size_t copylen; 381 382 if (blank && (sp = memchr(buf, '<', len)) != NULL) 383 ep = memchr(sp, '>', len - (sp - buf + 1)); 384 /* Length of string before comment. */ 385 if (ep) 386 copylen = sp - buf; 387 else 388 copylen = len; 389 if (atomicio(vwrite, dst, buf, copylen) != copylen) { 390 int saved_errno = errno; 391 392 fclose(fp); 393 errno = saved_errno; 394 return (-1); 395 } 396 if (!ep) 397 break; 398 /* Skip comment. */ 399 len -= ep - buf + 1; 400 buf = ep + 1; 401 } 402 } 403 fclose(fp); 404 return (0); 405 } 406 407 void 408 template(FILE *fp) 409 { 410 fprintf(fp, "SENDBUG: -*- sendbug -*-\n"); 411 fprintf(fp, "SENDBUG: Lines starting with `SENDBUG' will" 412 " be removed automatically, as\n"); 413 fprintf(fp, "SENDBUG: will all comments (text enclosed in `<' and `>').\n"); 414 fprintf(fp, "SENDBUG:\n"); 415 fprintf(fp, "SENDBUG: Choose from the following categories:\n"); 416 fprintf(fp, "SENDBUG:\n"); 417 fprintf(fp, "SENDBUG: %s\n", categories); 418 fprintf(fp, "SENDBUG:\n"); 419 fprintf(fp, "SENDBUG:\n"); 420 fprintf(fp, "To: %s\n", "gnats@openbsd.org"); 421 fprintf(fp, "Subject: \n"); 422 fprintf(fp, "From: %s\n", pw->pw_name); 423 fprintf(fp, "Cc: \n"); 424 fprintf(fp, "Reply-To: %s\n", pw->pw_name); 425 fprintf(fp, "X-sendbug-version: %s\n", version); 426 fprintf(fp, "\n"); 427 fprintf(fp, "\n"); 428 fprintf(fp, ">Submitter-Id:\tnet\n"); 429 fprintf(fp, ">Originator:\t%s\n", fullname); 430 fprintf(fp, ">Organization:\n"); 431 fprintf(fp, "net\n"); 432 fprintf(fp, ">Synopsis:\t<synopsis of the problem (one line)>\n"); 433 fprintf(fp, ">Severity:\t" 434 "<[ non-critical | serious | critical ] (one line)>\n"); 435 fprintf(fp, ">Priority:\t<[ low | medium | high ] (one line)>\n"); 436 fprintf(fp, ">Category:\t<PR category (one line)>\n"); 437 fprintf(fp, ">Class:\t\t" 438 "<[ sw-bug | doc-bug | change-request | support ] (one line)>\n"); 439 fprintf(fp, ">Release:\t<release number or tag (one line)>\n"); 440 fprintf(fp, ">Environment:\n"); 441 fprintf(fp, "\t<machine, os, target, libraries (multiple lines)>\n"); 442 fprintf(fp, "\tSystem : %s %s\n", os, rel); 443 fprintf(fp, "\tDetails : %s\n", details); 444 fprintf(fp, "\tArchitecture: %s.%s\n", os, mach); 445 fprintf(fp, "\tMachine : %s\n", mach); 446 fprintf(fp, ">Description:\n"); 447 fprintf(fp, "\t<precise description of the problem (multiple lines)>\n"); 448 fprintf(fp, ">How-To-Repeat:\n"); 449 fprintf(fp, "\t<code/input/activities to reproduce the problem" 450 " (multiple lines)>\n"); 451 fprintf(fp, ">Fix:\n"); 452 fprintf(fp, "\t<how to correct or work around the problem," 453 " if known (multiple lines)>\n"); 454 } 455