clang -cc1 -cc1 -triple amd64-unknown-openbsd7.4 -analyze -disable-free -clear-ast-before-backend -disable-llvm-verifier -discard-value-names -main-file-name main.c -analyzer-checker=core -analyzer-checker=apiModeling -analyzer-checker=unix -analyzer-checker=deadcode -analyzer-checker=security.insecureAPI.UncheckedReturn -analyzer-checker=security.insecureAPI.getpw -analyzer-checker=security.insecureAPI.gets -analyzer-checker=security.insecureAPI.mktemp -analyzer-checker=security.insecureAPI.mkstemp -analyzer-checker=security.insecureAPI.vfork -analyzer-checker=nullability.NullPassedToNonnull -analyzer-checker=nullability.NullReturnedFromNonnull -analyzer-output plist -w -setup-static-analyzer -mrelocation-model pic -pic-level 1 -pic-is-pie -mframe-pointer=all -relaxed-aliasing -ffp-contract=on -fno-rounding-math -mconstructor-aliases -funwind-tables=2 -target-cpu x86-64 -target-feature +retpoline-indirect-calls -target-feature +retpoline-indirect-branches -tune-cpu generic -debugger-tuning=gdb -fcoverage-compilation-dir=/usr/src/usr.bin/mandoc/obj -resource-dir /usr/local/llvm16/lib/clang/16 -internal-isystem /usr/local/llvm16/lib/clang/16/include -internal-externc-isystem /usr/include -O2 -Wno-unused-parameter -fdebug-compilation-dir=/usr/src/usr.bin/mandoc/obj -ferror-limit 19 -fwrapv -D_RET_PROTECTOR -ret-protector -fcf-protection=branch -fno-jump-tables -fgnuc-version=4.2.1 -vectorize-loops -vectorize-slp -fno-builtin-malloc -fno-builtin-calloc -fno-builtin-realloc -fno-builtin-valloc -fno-builtin-free -fno-builtin-strdup -fno-builtin-strndup -analyzer-output=html -faddrsig -D__GCC_HAVE_DWARF2_CFI_ASM=1 -o /home/ben/Projects/scan/2024-01-11-140451-98009-1 -x c /usr/src/usr.bin/mandoc/main.c
1 | |
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5 | |
6 | |
7 | |
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9 | |
10 | |
11 | |
12 | |
13 | |
14 | |
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16 | |
17 | |
18 | |
19 | |
20 | |
21 | #include <sys/types.h> |
22 | #include <sys/ioctl.h> |
23 | #include <sys/param.h> /* MACHINE */ |
24 | #include <sys/stat.h> |
25 | #include <sys/wait.h> |
26 | |
27 | #include <assert.h> |
28 | #include <ctype.h> |
29 | #include <err.h> |
30 | #include <errno.h> |
31 | #include <fcntl.h> |
32 | #include <glob.h> |
33 | #include <limits.h> |
34 | #include <signal.h> |
35 | #include <stdio.h> |
36 | #include <stdint.h> |
37 | #include <stdlib.h> |
38 | #include <string.h> |
39 | #include <termios.h> |
40 | #include <time.h> |
41 | #include <unistd.h> |
42 | |
43 | #include "mandoc_aux.h" |
44 | #include "mandoc.h" |
45 | #include "mandoc_xr.h" |
46 | #include "roff.h" |
47 | #include "mdoc.h" |
48 | #include "man.h" |
49 | #include "mandoc_parse.h" |
50 | #include "tag.h" |
51 | #include "term_tag.h" |
52 | #include "main.h" |
53 | #include "manconf.h" |
54 | #include "mansearch.h" |
55 | |
56 | #define BINM_APROPOS "apropos" |
57 | #define BINM_MAN "man" |
58 | #define BINM_MAKEWHATIS "makewhatis" |
59 | #define BINM_WHATIS "whatis" |
60 | #define OSENUM MANDOC_OS_OPENBSD |
61 | |
62 | enum outmode { |
63 | OUTMODE_DEF = 0, |
64 | OUTMODE_FLN, |
65 | OUTMODE_LST, |
66 | OUTMODE_ALL, |
67 | OUTMODE_ONE |
68 | }; |
69 | |
70 | enum outt { |
71 | OUTT_ASCII = 0, |
72 | OUTT_LOCALE, |
73 | OUTT_UTF8, |
74 | OUTT_TREE, |
75 | OUTT_MAN, |
76 | OUTT_HTML, |
77 | OUTT_MARKDOWN, |
78 | OUTT_LINT, |
79 | OUTT_PS, |
80 | OUTT_PDF |
81 | }; |
82 | |
83 | struct outstate { |
84 | struct tag_files *tag_files; |
85 | void *outdata; |
86 | int use_pager; |
87 | int wstop; |
88 | int had_output; |
89 | enum outt outtype; |
90 | }; |
91 | |
92 | |
93 | int mandocdb(int, char *[]); |
94 | |
95 | static void check_xr(struct manpaths *); |
96 | static void fs_append(char **, size_t, int, |
97 | size_t, const char *, enum form, |
98 | struct manpage **, size_t *); |
99 | static int fs_lookup(const struct manpaths *, size_t, |
100 | const char *, const char *, const char *, |
101 | struct manpage **, size_t *); |
102 | static int fs_search(const struct mansearch *, |
103 | const struct manpaths *, const char *, |
104 | struct manpage **, size_t *); |
105 | static void glob_esc(char **, const char *, const char *); |
106 | static void outdata_alloc(struct outstate *, struct manoutput *); |
107 | static void parse(struct mparse *, int, const char *, |
108 | struct outstate *, struct manconf *); |
109 | static void passthrough(int, int); |
110 | static void process_onefile(struct mparse *, struct manpage *, |
111 | int, struct outstate *, struct manconf *); |
112 | static void run_pager(struct outstate *, char *); |
113 | static pid_t spawn_pager(struct outstate *, char *); |
114 | static void usage(enum argmode) __attribute__((__noreturn__)); |
115 | static int woptions(char *, enum mandoc_os *, int *); |
116 | |
117 | static const int sec_prios[] = {1, 4, 5, 8, 6, 3, 7, 2, 9}; |
118 | static char help_arg[] = "help"; |
119 | static char *help_argv[] = {help_arg, NULL}; |
120 | |
121 | |
122 | int |
123 | main(int argc, char *argv[]) |
124 | { |
125 | struct manconf conf; |
126 | struct outstate outst; |
127 | struct winsize ws; |
128 | struct mansearch search; |
129 | struct manpage *res; |
130 | struct manpage *resn; |
131 | struct mparse *mp; |
132 | const char *conf_file; |
133 | const char *os_s; |
134 | const char *progname, *sec, *ep; |
135 | char *defpaths; |
136 | char *auxpaths; |
137 | char *oarg; |
138 | char *tagarg; |
139 | unsigned char *uc; |
140 | size_t ressz; |
141 | size_t resnsz; |
142 | size_t i, ib, ssz; |
143 | int options; |
144 | int show_usage; |
145 | int prio, best_prio; |
146 | int startdir; |
147 | int c; |
148 | enum mandoc_os os_e; |
149 | enum outmode outmode; |
150 | |
151 | progname = getprogname(); |
152 | mandoc_msg_setoutfile(stderr); |
153 | if (strncmp(progname, "mandocdb", 8) == 0 || |
| 1 | Assuming the condition is false | |
|
| |
154 | strcmp(progname, BINM_MAKEWHATIS) == 0) |
| 2 | | Assuming the condition is false | |
|
155 | return mandocdb(argc, argv); |
156 | |
157 | if (pledge("stdio rpath wpath cpath tmppath tty proc exec", NULL) == -1) { |
| 4 | | Assuming the condition is false | |
|
| |
158 | mandoc_msg(MANDOCERR_PLEDGE, 0, 0, "%s", strerror(errno)); |
159 | return mandoc_msg_getrc(); |
160 | } |
161 | |
162 | |
163 | |
164 | memset(&conf, 0, sizeof(conf)); |
165 | conf_file = NULL; |
166 | defpaths = auxpaths = NULL; |
167 | |
168 | memset(&search, 0, sizeof(struct mansearch)); |
169 | search.outkey = "Nd"; |
170 | oarg = NULL; |
171 | |
172 | if (strcmp(progname, BINM_MAN) == 0) |
| |
173 | search.argmode = ARG_NAME; |
174 | else if (strcmp(progname, BINM_APROPOS) == 0) |
175 | search.argmode = ARG_EXPR; |
176 | else if (strcmp(progname, BINM_WHATIS) == 0) |
177 | search.argmode = ARG_WORD; |
178 | else if (strncmp(progname, "help", 4) == 0) |
179 | search.argmode = ARG_NAME; |
180 | else |
181 | search.argmode = ARG_FILE; |
182 | |
183 | |
184 | |
185 | options = MPARSE_SO | MPARSE_UTF8 | MPARSE_LATIN1; |
186 | os_e = MANDOC_OS_OTHER; |
187 | os_s = NULL; |
188 | |
189 | |
190 | |
191 | memset(&outst, 0, sizeof(outst)); |
192 | outst.tag_files = NULL; |
193 | outst.outtype = OUTT_LOCALE; |
194 | outst.use_pager = 1; |
195 | |
196 | show_usage = 0; |
197 | outmode = OUTMODE_DEF; |
198 | |
199 | while ((c = getopt(argc, argv, |
| 7 | | Assuming the condition is false | |
|
| 8 | | Loop condition is false. Execution continues on line 312 | |
|
200 | "aC:cfhI:iK:klM:m:O:S:s:T:VW:w")) != -1) { |
201 | if (c == 'i' && search.argmode == ARG_EXPR) { |
202 | optind--; |
203 | break; |
204 | } |
205 | switch (c) { |
206 | case 'a': |
207 | outmode = OUTMODE_ALL; |
208 | break; |
209 | case 'C': |
210 | conf_file = optarg; |
211 | break; |
212 | case 'c': |
213 | outst.use_pager = 0; |
214 | break; |
215 | case 'f': |
216 | search.argmode = ARG_WORD; |
217 | break; |
218 | case 'h': |
219 | conf.output.synopsisonly = 1; |
220 | outst.use_pager = 0; |
221 | outmode = OUTMODE_ALL; |
222 | break; |
223 | case 'I': |
224 | if (strncmp(optarg, "os=", 3) != 0) { |
225 | mandoc_msg(MANDOCERR_BADARG_BAD, 0, 0, |
226 | "-I %s", optarg); |
227 | return mandoc_msg_getrc(); |
228 | } |
229 | if (os_s != NULL) { |
230 | mandoc_msg(MANDOCERR_BADARG_DUPE, 0, 0, |
231 | "-I %s", optarg); |
232 | return mandoc_msg_getrc(); |
233 | } |
234 | os_s = optarg + 3; |
235 | break; |
236 | case 'K': |
237 | options &= ~(MPARSE_UTF8 | MPARSE_LATIN1); |
238 | if (strcmp(optarg, "utf-8") == 0) |
239 | options |= MPARSE_UTF8; |
240 | else if (strcmp(optarg, "iso-8859-1") == 0) |
241 | options |= MPARSE_LATIN1; |
242 | else if (strcmp(optarg, "us-ascii") != 0) { |
243 | mandoc_msg(MANDOCERR_BADARG_BAD, 0, 0, |
244 | "-K %s", optarg); |
245 | return mandoc_msg_getrc(); |
246 | } |
247 | break; |
248 | case 'k': |
249 | search.argmode = ARG_EXPR; |
250 | break; |
251 | case 'l': |
252 | search.argmode = ARG_FILE; |
253 | outmode = OUTMODE_ALL; |
254 | break; |
255 | case 'M': |
256 | defpaths = optarg; |
257 | break; |
258 | case 'm': |
259 | auxpaths = optarg; |
260 | break; |
261 | case 'O': |
262 | oarg = optarg; |
263 | break; |
264 | case 'S': |
265 | search.arch = optarg; |
266 | break; |
267 | case 's': |
268 | search.sec = optarg; |
269 | break; |
270 | case 'T': |
271 | if (strcmp(optarg, "ascii") == 0) |
272 | outst.outtype = OUTT_ASCII; |
273 | else if (strcmp(optarg, "lint") == 0) { |
274 | outst.outtype = OUTT_LINT; |
275 | mandoc_msg_setoutfile(stdout); |
276 | mandoc_msg_setmin(MANDOCERR_BASE); |
277 | } else if (strcmp(optarg, "tree") == 0) |
278 | outst.outtype = OUTT_TREE; |
279 | else if (strcmp(optarg, "man") == 0) |
280 | outst.outtype = OUTT_MAN; |
281 | else if (strcmp(optarg, "html") == 0) |
282 | outst.outtype = OUTT_HTML; |
283 | else if (strcmp(optarg, "markdown") == 0) |
284 | outst.outtype = OUTT_MARKDOWN; |
285 | else if (strcmp(optarg, "utf8") == 0) |
286 | outst.outtype = OUTT_UTF8; |
287 | else if (strcmp(optarg, "locale") == 0) |
288 | outst.outtype = OUTT_LOCALE; |
289 | else if (strcmp(optarg, "ps") == 0) |
290 | outst.outtype = OUTT_PS; |
291 | else if (strcmp(optarg, "pdf") == 0) |
292 | outst.outtype = OUTT_PDF; |
293 | else { |
294 | mandoc_msg(MANDOCERR_BADARG_BAD, 0, 0, |
295 | "-T %s", optarg); |
296 | return mandoc_msg_getrc(); |
297 | } |
298 | break; |
299 | case 'W': |
300 | if (woptions(optarg, &os_e, &outst.wstop) == -1) |
301 | return mandoc_msg_getrc(); |
302 | break; |
303 | case 'w': |
304 | outmode = OUTMODE_FLN; |
305 | break; |
306 | default: |
307 | show_usage = 1; |
308 | break; |
309 | } |
310 | } |
311 | |
312 | if (show_usage) |
| |
313 | usage(search.argmode); |
314 | |
315 | |
316 | |
317 | switch (outmode) { |
| 10 | | Control jumps to 'case OUTMODE_DEF:' at line 318 | |
|
318 | case OUTMODE_DEF: |
319 | switch (search.argmode) { |
| 11 | | Control jumps to 'case ARG_NAME:' at line 324 | |
|
320 | case ARG_FILE: |
321 | outmode = OUTMODE_ALL; |
322 | outst.use_pager = 0; |
323 | break; |
324 | case ARG_NAME: |
325 | outmode = OUTMODE_ONE; |
326 | break; |
| 12 | | Execution continues on line 331 | |
|
327 | default: |
328 | outmode = OUTMODE_LST; |
329 | break; |
330 | } |
331 | break; |
332 | case OUTMODE_FLN: |
333 | if (search.argmode == ARG_FILE) |
334 | outmode = OUTMODE_ALL; |
335 | break; |
336 | case OUTMODE_ALL: |
337 | break; |
338 | case OUTMODE_LST: |
339 | case OUTMODE_ONE: |
340 | abort(); |
341 | } |
342 | |
343 | if (oarg != NULL) { |
| 13 | | Execution continues on line 343 | |
|
344 | if (outmode == OUTMODE_LST) |
345 | search.outkey = oarg; |
346 | else { |
347 | while (oarg != NULL) { |
348 | if (manconf_output(&conf.output, |
349 | strsep(&oarg, ","), 0) == -1) |
350 | return mandoc_msg_getrc(); |
351 | } |
352 | } |
353 | } |
354 | |
355 | if (outst.outtype != OUTT_TREE || conf.output.noval == 0) |
356 | options |= MPARSE_VALIDATE; |
357 | |
358 | if (outmode == OUTMODE_FLN || |
359 | outmode == OUTMODE_LST || |
360 | (conf.output.outfilename == NULL && |
361 | conf.output.tagfilename == NULL && |
362 | isatty(STDOUT_FILENO) == 0)) |
| 14 | | Assuming the condition is false | |
|
363 | outst.use_pager = 0; |
364 | |
365 | if (outst.use_pager && |
366 | (conf.output.width == 0 || conf.output.indent == 0) && |
367 | ioctl(STDOUT_FILENO, TIOCGWINSZ, &ws) != -1 && |
| 15 | | Assuming the condition is false | |
|
368 | ws.ws_col > 1) { |
369 | if (conf.output.width == 0 && ws.ws_col < 79) |
370 | conf.output.width = ws.ws_col - 1; |
371 | if (conf.output.indent == 0 && ws.ws_col < 66) |
372 | conf.output.indent = 3; |
373 | } |
374 | |
375 | if (outst.use_pager == 0) |
376 | c = pledge("stdio rpath", NULL); |
377 | else if (conf.output.outfilename != NULL || |
| |
378 | conf.output.tagfilename != NULL) |
379 | c = pledge("stdio rpath wpath cpath", NULL); |
380 | else |
381 | c = pledge("stdio rpath tmppath tty proc exec", NULL); |
382 | if (c == -1) { |
| 17 | | Assuming the condition is false | |
|
| |
383 | mandoc_msg(MANDOCERR_PLEDGE, 0, 0, "%s", strerror(errno)); |
384 | return mandoc_msg_getrc(); |
385 | } |
386 | |
387 | |
388 | |
389 | if (argc > 0) { |
| |
390 | argc -= optind; |
391 | argv += optind; |
392 | } |
393 | |
394 | |
395 | |
396 | |
397 | |
398 | |
399 | if (search.argmode == ARG_NAME) { |
| |
400 | if (*progname == 'h') { |
| 21 | | Assuming the condition is false | |
|
401 | if (argc == 0) { |
402 | argv = help_argv; |
403 | argc = 1; |
404 | } |
405 | } else if (argc > 1 && |
| 22 | | Assuming 'argc' is <= 1 | |
|
406 | ((uc = (unsigned char *)argv[0]) != NULL) && |
407 | ((isdigit(uc[0]) && (uc[1] == '\0' || |
408 | isalpha(uc[1]))) || |
409 | (uc[0] == 'n' && uc[1] == '\0'))) { |
410 | search.sec = (char *)uc; |
411 | argv++; |
412 | argc--; |
413 | } |
414 | if (search.arch == NULL) |
| |
415 | search.arch = getenv("MACHINE"); |
| 24 | | Assuming the environment variable does not exist | |
|
416 | if (search.arch == NULL) |
| |
417 | search.arch = MACHINE; |
418 | if (outmode == OUTMODE_ONE) |
| |
419 | search.firstmatch = 1; |
420 | } |
421 | |
422 | |
423 | |
424 | |
425 | |
426 | |
427 | if (conf.output.tag != NULL && *conf.output.tag == '\0') { |
428 | tagarg = argc > 0 && search.argmode == ARG_EXPR ? |
429 | strchr(*argv, '=') : NULL; |
430 | conf.output.tag = tagarg == NULL ? *argv : tagarg + 1; |
431 | } |
432 | |
433 | |
434 | |
435 | if (search.argmode != ARG_FILE || |
436 | mandoc_msg_getmin() == MANDOCERR_STYLE) |
437 | manconf_parse(&conf, conf_file, defpaths, auxpaths); |
438 | |
439 | |
440 | |
441 | if (search.argmode == ARG_NAME) { |
| |
442 | if (argc < 1) { |
| 28 | | Assuming 'argc' is >= 1 | |
|
| |
443 | if (outmode != OUTMODE_FLN) |
444 | usage(ARG_NAME); |
445 | if (conf.manpath.sz == 0) { |
446 | warnx("The manpath is empty."); |
447 | mandoc_msg_setrc(MANDOCLEVEL_BADARG); |
448 | } else { |
449 | for (i = 0; i + 1 < conf.manpath.sz; i++) |
450 | printf("%s:", conf.manpath.paths[i]); |
451 | printf("%s\n", conf.manpath.paths[i]); |
452 | } |
453 | manconf_free(&conf); |
454 | return (int)mandoc_msg_getrc(); |
455 | } |
456 | for (res = NULL, ressz = 0; argc > 0; argc--, argv++) { |
| 30 | | Loop condition is true. Entering loop body | |
|
457 | (void)mansearch(&search, &conf.manpath, |
458 | 1, argv, &resn, &resnsz); |
459 | if (resnsz == 0) |
| 31 | | Assuming 'resnsz' is equal to 0 | |
|
| |
460 | (void)fs_search(&search, &conf.manpath, |
| |
461 | *argv, &resn, &resnsz); |
462 | if (resnsz == 0 && strchr(*argv, '/') == NULL) { |
463 | if (search.arch != NULL && |
464 | arch_valid(search.arch, OSENUM) == 0) |
465 | warnx("Unknown architecture \"%s\".", |
466 | search.arch); |
467 | else if (search.sec != NULL) |
468 | warnx("No entry for %s in " |
469 | "section %s of the manual.", |
470 | *argv, search.sec); |
471 | else |
472 | warnx("No entry for %s in " |
473 | "the manual.", *argv); |
474 | mandoc_msg_setrc(MANDOCLEVEL_BADARG); |
475 | continue; |
476 | } |
477 | if (resnsz == 0) { |
478 | if (access(*argv, R_OK) == -1) { |
479 | mandoc_msg_setinfilename(*argv); |
480 | mandoc_msg(MANDOCERR_BADARG_BAD, |
481 | 0, 0, "%s", strerror(errno)); |
482 | mandoc_msg_setinfilename(NULL); |
483 | continue; |
484 | } |
485 | resnsz = 1; |
486 | resn = mandoc_calloc(resnsz, sizeof(*res)); |
487 | resn->file = mandoc_strdup(*argv); |
488 | resn->ipath = SIZE_MAX; |
489 | resn->form = FORM_SRC; |
490 | } |
491 | if (outmode != OUTMODE_ONE || resnsz == 1) { |
492 | res = mandoc_reallocarray(res, |
493 | ressz + resnsz, sizeof(*res)); |
494 | memcpy(res + ressz, resn, |
495 | sizeof(*resn) * resnsz); |
496 | ressz += resnsz; |
497 | free(resn); |
498 | resn = NULL; |
499 | resnsz = 0; |
500 | continue; |
501 | } |
502 | |
503 | |
504 | |
505 | best_prio = 40; |
506 | for (ib = i = 0; i < resnsz; i++) { |
507 | sec = resn[i].file + |
508 | strlen(conf.manpath.paths[resn[i].ipath]); |
509 | sec += strcspn(sec, "123456789"); |
510 | if (sec[0] == '\0') |
511 | continue; |
512 | prio = sec_prios[sec[0] - '1']; |
513 | if (search.sec != NULL) { |
514 | ssz = strlen(search.sec); |
515 | if (strncmp(sec, search.sec, ssz) == 0) |
516 | sec += ssz; |
517 | } else |
518 | sec++; |
519 | if (*sec != '/') |
520 | prio += 10; |
521 | if (search.sec != NULL) { |
522 | ep = strchr(sec, '\0'); |
523 | if (ep - sec > 3 && |
524 | strncmp(ep - 3, ".gz", 3) == 0) |
525 | ep -= 3; |
526 | if ((size_t)(ep - sec) < ssz + 3 || |
527 | strncmp(ep - ssz, search.sec, |
528 | ssz) != 0) |
529 | prio += 20; |
530 | } |
531 | if (prio >= best_prio) |
532 | continue; |
533 | best_prio = prio; |
534 | ib = i; |
535 | } |
536 | res = mandoc_reallocarray(res, ressz + 1, |
537 | sizeof(*res)); |
538 | memcpy(res + ressz++, resn + ib, sizeof(*resn)); |
539 | memset(resn + ib, 0, sizeof(*resn)); |
540 | mansearch_free(resn, resnsz); |
541 | resn = NULL; |
542 | resnsz = 0; |
543 | } |
544 | |
545 | |
546 | |
547 | } else if (search.argmode != ARG_FILE) { |
548 | if (mansearch(&search, &conf.manpath, |
549 | argc, argv, &res, &ressz) == 0) |
550 | usage(search.argmode); |
551 | |
552 | if (ressz == 0) { |
553 | warnx("nothing appropriate"); |
554 | mandoc_msg_setrc(MANDOCLEVEL_BADARG); |
555 | goto out; |
556 | } |
557 | |
558 | |
559 | |
560 | } else { |
561 | ressz = argc > 0 ? argc : 1; |
562 | res = mandoc_calloc(ressz, sizeof(*res)); |
563 | for (i = 0; i < ressz; i++) { |
564 | if (argc > 0) |
565 | res[i].file = mandoc_strdup(argv[i]); |
566 | res[i].ipath = SIZE_MAX; |
567 | res[i].form = FORM_SRC; |
568 | } |
569 | } |
570 | |
571 | switch (outmode) { |
572 | case OUTMODE_FLN: |
573 | for (i = 0; i < ressz; i++) |
574 | puts(res[i].file); |
575 | goto out; |
576 | case OUTMODE_LST: |
577 | for (i = 0; i < ressz; i++) |
578 | printf("%s - %s\n", res[i].names, |
579 | res[i].output == NULL ? "" : |
580 | res[i].output); |
581 | goto out; |
582 | default: |
583 | break; |
584 | } |
585 | |
586 | if (search.argmode == ARG_FILE && auxpaths != NULL) { |
587 | if (strcmp(auxpaths, "doc") == 0) |
588 | options |= MPARSE_MDOC; |
589 | else if (strcmp(auxpaths, "an") == 0) |
590 | options |= MPARSE_MAN; |
591 | } |
592 | |
593 | mchars_alloc(); |
594 | mp = mparse_alloc(options, os_e, os_s); |
595 | |
596 | |
597 | |
598 | |
599 | |
600 | |
601 | |
602 | |
603 | startdir = open(".", O_RDONLY | O_DIRECTORY); |
604 | for (i = 0; i < ressz; i++) { |
605 | process_onefile(mp, res + i, startdir, &outst, &conf); |
606 | if (outst.wstop && mandoc_msg_getrc() != MANDOCLEVEL_OK) |
607 | break; |
608 | } |
609 | if (startdir != -1) { |
610 | (void)fchdir(startdir); |
611 | close(startdir); |
612 | } |
613 | if (conf.output.tag != NULL && conf.output.tag_found == 0) { |
614 | mandoc_msg(MANDOCERR_TAG, 0, 0, "%s", conf.output.tag); |
615 | conf.output.tag = NULL; |
616 | } |
617 | if (outst.outdata != NULL) { |
618 | switch (outst.outtype) { |
619 | case OUTT_HTML: |
620 | html_free(outst.outdata); |
621 | break; |
622 | case OUTT_UTF8: |
623 | case OUTT_LOCALE: |
624 | case OUTT_ASCII: |
625 | ascii_free(outst.outdata); |
626 | break; |
627 | case OUTT_PDF: |
628 | case OUTT_PS: |
629 | pspdf_free(outst.outdata); |
630 | break; |
631 | default: |
632 | break; |
633 | } |
634 | } |
635 | mandoc_xr_free(); |
636 | mparse_free(mp); |
637 | mchars_free(); |
638 | |
639 | out: |
640 | mansearch_free(res, ressz); |
641 | if (search.argmode != ARG_FILE) |
642 | manconf_free(&conf); |
643 | |
644 | if (outst.tag_files != NULL) { |
645 | if (term_tag_close() != -1 && |
646 | conf.output.outfilename == NULL && |
647 | conf.output.tagfilename == NULL) |
648 | run_pager(&outst, conf.output.tag); |
649 | term_tag_unlink(); |
650 | } else if (outst.had_output && outst.outtype != OUTT_LINT) |
651 | mandoc_msg_summary(); |
652 | |
653 | return (int)mandoc_msg_getrc(); |
654 | } |
655 | |
656 | static void |
657 | usage(enum argmode argmode) |
658 | { |
659 | switch (argmode) { |
660 | case ARG_FILE: |
661 | fputs("usage: mandoc [-ac] [-I os=name] " |
662 | "[-K encoding] [-mdoc | -man] [-O options]\n" |
663 | "\t [-T output] [-W level] [file ...]\n", stderr); |
664 | break; |
665 | case ARG_NAME: |
666 | fputs("usage: man [-acfhklw] [-C file] [-M path] " |
667 | "[-m path] [-S subsection]\n" |
668 | "\t [[-s] section] name ...\n", stderr); |
669 | break; |
670 | case ARG_WORD: |
671 | fputs("usage: whatis [-afk] [-C file] " |
672 | "[-M path] [-m path] [-O outkey] [-S arch]\n" |
673 | "\t [-s section] name ...\n", stderr); |
674 | break; |
675 | case ARG_EXPR: |
676 | fputs("usage: apropos [-afk] [-C file] " |
677 | "[-M path] [-m path] [-O outkey] [-S arch]\n" |
678 | "\t [-s section] expression ...\n", stderr); |
679 | break; |
680 | } |
681 | exit((int)MANDOCLEVEL_BADARG); |
682 | } |
683 | |
684 | static void |
685 | glob_esc(char **dst, const char *src, const char *suffix) |
686 | { |
687 | while (*src != '\0') { |
688 | if (strchr("*?[", *src) != NULL) |
689 | *(*dst)++ = '\\'; |
690 | *(*dst)++ = *src++; |
691 | } |
692 | while (*suffix != '\0') |
693 | *(*dst)++ = *suffix++; |
694 | } |
695 | |
696 | static void |
697 | fs_append(char **file, size_t filesz, int copy, size_t ipath, |
698 | const char *sec, enum form form, struct manpage **res, size_t *ressz) |
699 | { |
700 | struct manpage *page; |
701 | |
702 | *res = mandoc_reallocarray(*res, *ressz + filesz, sizeof(**res)); |
703 | page = *res + *ressz; |
704 | *ressz += filesz; |
705 | for (;;) { |
706 | page->file = copy ? mandoc_strdup(*file) : *file; |
| 49 | | Loop condition is true. Entering loop body | |
|
| |
| 51 | | Dereference of null pointer (loaded from variable 'file') |
|
707 | page->names = NULL; |
708 | page->output = NULL; |
709 | page->bits = NAME_FILE & NAME_MASK; |
710 | page->ipath = ipath; |
711 | page->sec = (*sec >= '1' && *sec <= '9') ? *sec - '1' + 1 : 10; |
712 | page->form = form; |
713 | if (--filesz == 0) |
714 | break; |
715 | file++; |
716 | page++; |
717 | } |
718 | } |
719 | |
720 | static int |
721 | fs_lookup(const struct manpaths *paths, size_t ipath, |
722 | const char *sec, const char *arch, const char *name, |
723 | struct manpage **res, size_t *ressz) |
724 | { |
725 | struct stat sb; |
726 | glob_t globinfo; |
727 | char *file, *cp, secnum[2]; |
728 | int globres; |
729 | enum form form; |
730 | |
731 | const char *const slman = "/man"; |
732 | const char *const slash = "/"; |
733 | const char *const sglob = ".[01-9]*"; |
734 | const char *const dot = "."; |
735 | const char *const aster = "*"; |
736 | |
737 | memset(&globinfo, 0, sizeof(globinfo)); |
| 40 | | Null pointer value stored to 'globinfo.gl_pathv' | |
|
738 | form = FORM_SRC; |
739 | |
740 | mandoc_asprintf(&file, "%s/man%s/%s.%s", |
741 | paths->paths[ipath], sec, name, sec); |
742 | if (stat(file, &sb) != -1) |
| 41 | | Assuming the condition is true | |
|
| |
743 | goto found; |
| 43 | | Control jumps to line 811 | |
|
744 | free(file); |
745 | |
746 | mandoc_asprintf(&file, "%s/cat%s/%s.0", |
747 | paths->paths[ipath], sec, name); |
748 | if (stat(file, &sb) != -1) { |
749 | form = FORM_CAT; |
750 | goto found; |
751 | } |
752 | free(file); |
753 | |
754 | if (arch != NULL) { |
755 | mandoc_asprintf(&file, "%s/man%s/%s/%s.%s", |
756 | paths->paths[ipath], sec, arch, name, sec); |
757 | if (stat(file, &sb) != -1) |
758 | goto found; |
759 | free(file); |
760 | } |
761 | |
762 | cp = file = mandoc_malloc(strlen(paths->paths[ipath]) * 2 + |
763 | strlen(slman) + strlen(sec) * 2 + strlen(slash) + |
764 | strlen(name) * 2 + strlen(sglob) + 1); |
765 | glob_esc(&cp, paths->paths[ipath], slman); |
766 | glob_esc(&cp, sec, slash); |
767 | glob_esc(&cp, name, sglob); |
768 | *cp = '\0'; |
769 | globres = glob(file, 0, NULL, &globinfo); |
770 | if (globres != 0 && globres != GLOB_NOMATCH) |
771 | mandoc_msg(MANDOCERR_GLOB, 0, 0, |
772 | "%s: %s", file, strerror(errno)); |
773 | free(file); |
774 | file = NULL; |
775 | if (globres == 0) |
776 | goto found; |
777 | globfree(&globinfo); |
778 | |
779 | if (sec[1] != '\0' && *ressz == 0) { |
780 | secnum[0] = sec[0]; |
781 | secnum[1] = '\0'; |
782 | cp = file = mandoc_malloc(strlen(paths->paths[ipath]) * 2 + |
783 | strlen(slman) + strlen(secnum) * 2 + strlen(slash) + |
784 | strlen(name) * 2 + strlen(dot) + |
785 | strlen(sec) * 2 + strlen(aster) + 1); |
786 | glob_esc(&cp, paths->paths[ipath], slman); |
787 | glob_esc(&cp, secnum, slash); |
788 | glob_esc(&cp, name, dot); |
789 | glob_esc(&cp, sec, aster); |
790 | *cp = '\0'; |
791 | globres = glob(file, 0, NULL, &globinfo); |
792 | if (globres != 0 && globres != GLOB_NOMATCH) |
793 | mandoc_msg(MANDOCERR_GLOB, 0, 0, |
794 | "%s: %s", file, strerror(errno)); |
795 | free(file); |
796 | file = NULL; |
797 | if (globres == 0) |
798 | goto found; |
799 | globfree(&globinfo); |
800 | } |
801 | |
802 | if (res != NULL || ipath + 1 != paths->sz) |
803 | return -1; |
804 | |
805 | mandoc_asprintf(&file, "%s.%s", name, sec); |
806 | globres = stat(file, &sb); |
807 | free(file); |
808 | return globres; |
809 | |
810 | found: |
811 | warnx("outdated mandoc.db lacks %s(%s) entry, run %s %s", |
812 | name, sec, BINM_MAKEWHATIS, paths->paths[ipath]); |
813 | if (res == NULL) |
| |
814 | free(file); |
815 | else if (file == NULL) |
| 45 | | Assuming 'file' is equal to NULL | |
|
| |
816 | fs_append(globinfo.gl_pathv, globinfo.gl_pathc, 1, |
| 47 | | Passing null pointer value via 1st parameter 'file' | |
|
| |
817 | ipath, sec, form, res, ressz); |
818 | else |
819 | fs_append(&file, 1, 0, ipath, sec, form, res, ressz); |
820 | globfree(&globinfo); |
821 | return 0; |
822 | } |
823 | |
824 | static int |
825 | fs_search(const struct mansearch *cfg, const struct manpaths *paths, |
826 | const char *name, struct manpage **res, size_t *ressz) |
827 | { |
828 | const char *const sections[] = |
829 | {"1", "8", "6", "2", "3", "5", "7", "4", "9", "3p"}; |
830 | const size_t nsec = sizeof(sections)/sizeof(sections[0]); |
831 | |
832 | size_t ipath, isec; |
833 | |
834 | assert(cfg->argmode == ARG_NAME); |
| |
835 | if (res != NULL) |
| |
836 | *res = NULL; |
837 | *ressz = 0; |
838 | for (ipath = 0; ipath < paths->sz; ipath++) { |
| 36 | | Assuming 'ipath' is < field 'sz' | |
|
| 37 | | Loop condition is true. Entering loop body | |
|
839 | if (cfg->sec != NULL) { |
| |
840 | if (fs_lookup(paths, ipath, cfg->sec, cfg->arch, |
841 | name, res, ressz) != -1 && cfg->firstmatch) |
842 | return 0; |
843 | } else { |
844 | for (isec = 0; isec < nsec; isec++) |
845 | if (fs_lookup(paths, ipath, sections[isec], |
| |
846 | cfg->arch, name, res, ressz) != -1 && |
847 | cfg->firstmatch) |
848 | return 0; |
849 | } |
850 | } |
851 | return -1; |
852 | } |
853 | |
854 | static void |
855 | process_onefile(struct mparse *mp, struct manpage *resp, int startdir, |
856 | struct outstate *outst, struct manconf *conf) |
857 | { |
858 | int fd; |
859 | |
860 | |
861 | |
862 | |
863 | |
864 | |
865 | if (resp->ipath != SIZE_MAX) |
866 | (void)chdir(conf->manpath.paths[resp->ipath]); |
867 | else if (startdir != -1) |
868 | (void)fchdir(startdir); |
869 | |
870 | mandoc_msg_setinfilename(resp->file); |
871 | if (resp->file != NULL) { |
872 | if ((fd = mparse_open(mp, resp->file)) == -1) { |
873 | mandoc_msg(resp->ipath == SIZE_MAX ? |
874 | MANDOCERR_BADARG_BAD : MANDOCERR_OPEN, |
875 | 0, 0, "%s", strerror(errno)); |
876 | mandoc_msg_setinfilename(NULL); |
877 | return; |
878 | } |
879 | } else |
880 | fd = STDIN_FILENO; |
881 | |
882 | if (outst->use_pager) { |
883 | outst->use_pager = 0; |
884 | outst->tag_files = term_tag_init(conf->output.outfilename, |
885 | outst->outtype == OUTT_HTML ? ".html" : "", |
886 | conf->output.tagfilename); |
887 | if ((conf->output.outfilename != NULL || |
888 | conf->output.tagfilename != NULL) && |
889 | pledge("stdio rpath cpath", NULL) == -1) { |
890 | mandoc_msg(MANDOCERR_PLEDGE, 0, 0, |
891 | "%s", strerror(errno)); |
892 | exit(mandoc_msg_getrc()); |
893 | } |
894 | } |
895 | if (outst->had_output && outst->outtype <= OUTT_UTF8) { |
896 | if (outst->outdata == NULL) |
897 | outdata_alloc(outst, &conf->output); |
898 | terminal_sepline(outst->outdata); |
899 | } |
900 | |
901 | if (resp->form == FORM_SRC) |
902 | parse(mp, fd, resp->file, outst, conf); |
903 | else { |
904 | passthrough(fd, conf->output.synopsisonly); |
905 | outst->had_output = 1; |
906 | } |
907 | |
908 | if (ferror(stdout)) { |
909 | if (outst->tag_files != NULL) { |
910 | mandoc_msg(MANDOCERR_WRITE, 0, 0, "%s: %s", |
911 | outst->tag_files->ofn, strerror(errno)); |
912 | term_tag_unlink(); |
913 | outst->tag_files = NULL; |
914 | } else |
915 | mandoc_msg(MANDOCERR_WRITE, 0, 0, "%s", |
916 | strerror(errno)); |
917 | } |
918 | mandoc_msg_setinfilename(NULL); |
919 | } |
920 | |
921 | static void |
922 | parse(struct mparse *mp, int fd, const char *file, |
923 | struct outstate *outst, struct manconf *conf) |
924 | { |
925 | static struct manpaths basepaths; |
926 | static int previous; |
927 | struct roff_meta *meta; |
928 | |
929 | assert(fd >= 0); |
930 | if (file == NULL) |
931 | file = "<stdin>"; |
932 | |
933 | if (previous) |
934 | mparse_reset(mp); |
935 | else |
936 | previous = 1; |
937 | |
938 | mparse_readfd(mp, fd, file); |
939 | if (fd != STDIN_FILENO) |
940 | close(fd); |
941 | |
942 | |
943 | |
944 | |
945 | |
946 | |
947 | if (outst->wstop && mandoc_msg_getrc() != MANDOCLEVEL_OK) |
948 | return; |
949 | |
950 | if (outst->outdata == NULL) |
951 | outdata_alloc(outst, &conf->output); |
952 | else if (outst->outtype == OUTT_HTML) |
953 | html_reset(outst->outdata); |
954 | |
955 | mandoc_xr_reset(); |
956 | meta = mparse_result(mp); |
957 | |
958 | |
959 | |
960 | outst->had_output = 1; |
961 | if (meta->macroset == MACROSET_MDOC) { |
962 | switch (outst->outtype) { |
963 | case OUTT_HTML: |
964 | html_mdoc(outst->outdata, meta); |
965 | break; |
966 | case OUTT_TREE: |
967 | tree_mdoc(outst->outdata, meta); |
968 | break; |
969 | case OUTT_MAN: |
970 | man_mdoc(outst->outdata, meta); |
971 | break; |
972 | case OUTT_PDF: |
973 | case OUTT_ASCII: |
974 | case OUTT_UTF8: |
975 | case OUTT_LOCALE: |
976 | case OUTT_PS: |
977 | terminal_mdoc(outst->outdata, meta); |
978 | break; |
979 | case OUTT_MARKDOWN: |
980 | markdown_mdoc(outst->outdata, meta); |
981 | break; |
982 | default: |
983 | break; |
984 | } |
985 | } |
986 | if (meta->macroset == MACROSET_MAN) { |
987 | switch (outst->outtype) { |
988 | case OUTT_HTML: |
989 | html_man(outst->outdata, meta); |
990 | break; |
991 | case OUTT_TREE: |
992 | tree_man(outst->outdata, meta); |
993 | break; |
994 | case OUTT_MAN: |
995 | mparse_copy(mp); |
996 | break; |
997 | case OUTT_PDF: |
998 | case OUTT_ASCII: |
999 | case OUTT_UTF8: |
1000 | case OUTT_LOCALE: |
1001 | case OUTT_PS: |
1002 | terminal_man(outst->outdata, meta); |
1003 | break; |
1004 | case OUTT_MARKDOWN: |
1005 | mandoc_msg(MANDOCERR_MAN_TMARKDOWN, 0, 0, NULL); |
1006 | break; |
1007 | default: |
1008 | break; |
1009 | } |
1010 | } |
1011 | if (conf->output.tag != NULL && conf->output.tag_found == 0 && |
1012 | tag_exists(conf->output.tag)) |
1013 | conf->output.tag_found = 1; |
1014 | |
1015 | if (mandoc_msg_getmin() < MANDOCERR_STYLE) { |
1016 | if (basepaths.sz == 0) |
1017 | manpath_base(&basepaths); |
1018 | check_xr(&basepaths); |
1019 | } else if (mandoc_msg_getmin() < MANDOCERR_WARNING) |
1020 | check_xr(&conf->manpath); |
1021 | } |
1022 | |
1023 | static void |
1024 | check_xr(struct manpaths *paths) |
1025 | { |
1026 | struct mansearch search; |
1027 | struct mandoc_xr *xr; |
1028 | size_t sz; |
1029 | |
1030 | for (xr = mandoc_xr_get(); xr != NULL; xr = xr->next) { |
1031 | if (xr->line == -1) |
1032 | continue; |
1033 | search.arch = NULL; |
1034 | search.sec = xr->sec; |
1035 | search.outkey = NULL; |
1036 | search.argmode = ARG_NAME; |
1037 | search.firstmatch = 1; |
1038 | if (mansearch(&search, paths, 1, &xr->name, NULL, &sz)) |
1039 | continue; |
1040 | if (fs_search(&search, paths, xr->name, NULL, &sz) != -1) |
1041 | continue; |
1042 | if (xr->count == 1) |
1043 | mandoc_msg(MANDOCERR_XR_BAD, xr->line, |
1044 | xr->pos + 1, "Xr %s %s", xr->name, xr->sec); |
1045 | else |
1046 | mandoc_msg(MANDOCERR_XR_BAD, xr->line, |
1047 | xr->pos + 1, "Xr %s %s (%d times)", |
1048 | xr->name, xr->sec, xr->count); |
1049 | } |
1050 | } |
1051 | |
1052 | static void |
1053 | outdata_alloc(struct outstate *outst, struct manoutput *outconf) |
1054 | { |
1055 | switch (outst->outtype) { |
1056 | case OUTT_HTML: |
1057 | outst->outdata = html_alloc(outconf); |
1058 | break; |
1059 | case OUTT_UTF8: |
1060 | outst->outdata = utf8_alloc(outconf); |
1061 | break; |
1062 | case OUTT_LOCALE: |
1063 | outst->outdata = locale_alloc(outconf); |
1064 | break; |
1065 | case OUTT_ASCII: |
1066 | outst->outdata = ascii_alloc(outconf); |
1067 | break; |
1068 | case OUTT_PDF: |
1069 | outst->outdata = pdf_alloc(outconf); |
1070 | break; |
1071 | case OUTT_PS: |
1072 | outst->outdata = ps_alloc(outconf); |
1073 | break; |
1074 | default: |
1075 | break; |
1076 | } |
1077 | } |
1078 | |
1079 | static void |
1080 | passthrough(int fd, int synopsis_only) |
1081 | { |
1082 | const char synb[] = "S\bSY\bYN\bNO\bOP\bPS\bSI\bIS\bS"; |
1083 | const char synr[] = "SYNOPSIS"; |
1084 | |
1085 | FILE *stream; |
1086 | char *line, *cp; |
1087 | size_t linesz; |
1088 | ssize_t len, written; |
1089 | int lno, print; |
1090 | |
1091 | stream = NULL; |
1092 | line = NULL; |
1093 | linesz = 0; |
1094 | |
1095 | if (fflush(stdout) == EOF) { |
1096 | mandoc_msg(MANDOCERR_FFLUSH, 0, 0, "%s", strerror(errno)); |
1097 | goto done; |
1098 | } |
1099 | if ((stream = fdopen(fd, "r")) == NULL) { |
1100 | close(fd); |
1101 | mandoc_msg(MANDOCERR_FDOPEN, 0, 0, "%s", strerror(errno)); |
1102 | goto done; |
1103 | } |
1104 | |
1105 | lno = print = 0; |
1106 | while ((len = getline(&line, &linesz, stream)) != -1) { |
1107 | lno++; |
1108 | cp = line; |
1109 | if (synopsis_only) { |
1110 | if (print) { |
1111 | if ( ! isspace((unsigned char)*cp)) |
1112 | goto done; |
1113 | while (isspace((unsigned char)*cp)) { |
1114 | cp++; |
1115 | len--; |
1116 | } |
1117 | } else { |
1118 | if (strcmp(cp, synb) == 0 || |
1119 | strcmp(cp, synr) == 0) |
1120 | print = 1; |
1121 | continue; |
1122 | } |
1123 | } |
1124 | for (; len > 0; len -= written) { |
1125 | if ((written = write(STDOUT_FILENO, cp, len)) == -1) { |
1126 | mandoc_msg(MANDOCERR_WRITE, 0, 0, |
1127 | "%s", strerror(errno)); |
1128 | goto done; |
1129 | } |
1130 | } |
1131 | } |
1132 | if (ferror(stream)) |
1133 | mandoc_msg(MANDOCERR_GETLINE, lno, 0, "%s", strerror(errno)); |
1134 | |
1135 | done: |
1136 | free(line); |
1137 | if (stream != NULL) |
1138 | fclose(stream); |
1139 | } |
1140 | |
1141 | static int |
1142 | woptions(char *arg, enum mandoc_os *os_e, int *wstop) |
1143 | { |
1144 | char *v, *o; |
1145 | const char *toks[11]; |
1146 | |
1147 | toks[0] = "stop"; |
1148 | toks[1] = "all"; |
1149 | toks[2] = "base"; |
1150 | toks[3] = "style"; |
1151 | toks[4] = "warning"; |
1152 | toks[5] = "error"; |
1153 | toks[6] = "unsupp"; |
1154 | toks[7] = "fatal"; |
1155 | toks[8] = "openbsd"; |
1156 | toks[9] = "netbsd"; |
1157 | toks[10] = NULL; |
1158 | |
1159 | while (*arg) { |
1160 | o = arg; |
1161 | switch (getsubopt(&arg, (char * const *)toks, &v)) { |
1162 | case 0: |
1163 | *wstop = 1; |
1164 | break; |
1165 | case 1: |
1166 | case 2: |
1167 | mandoc_msg_setmin(MANDOCERR_BASE); |
1168 | break; |
1169 | case 3: |
1170 | mandoc_msg_setmin(MANDOCERR_STYLE); |
1171 | break; |
1172 | case 4: |
1173 | mandoc_msg_setmin(MANDOCERR_WARNING); |
1174 | break; |
1175 | case 5: |
1176 | mandoc_msg_setmin(MANDOCERR_ERROR); |
1177 | break; |
1178 | case 6: |
1179 | mandoc_msg_setmin(MANDOCERR_UNSUPP); |
1180 | break; |
1181 | case 7: |
1182 | mandoc_msg_setmin(MANDOCERR_BADARG); |
1183 | break; |
1184 | case 8: |
1185 | mandoc_msg_setmin(MANDOCERR_BASE); |
1186 | *os_e = MANDOC_OS_OPENBSD; |
1187 | break; |
1188 | case 9: |
1189 | mandoc_msg_setmin(MANDOCERR_BASE); |
1190 | *os_e = MANDOC_OS_NETBSD; |
1191 | break; |
1192 | default: |
1193 | mandoc_msg(MANDOCERR_BADARG_BAD, 0, 0, "-W %s", o); |
1194 | return -1; |
1195 | } |
1196 | } |
1197 | return 0; |
1198 | } |
1199 | |
1200 | |
1201 | |
1202 | |
1203 | |
1204 | static void |
1205 | run_pager(struct outstate *outst, char *tag_target) |
1206 | { |
1207 | int signum, status; |
1208 | pid_t man_pgid, tc_pgid; |
1209 | pid_t pager_pid, wait_pid; |
1210 | |
1211 | man_pgid = getpgid(0); |
1212 | outst->tag_files->tcpgid = |
1213 | man_pgid == getpid() ? getpgid(getppid()) : man_pgid; |
1214 | pager_pid = 0; |
1215 | signum = SIGSTOP; |
1216 | |
1217 | for (;;) { |
1218 | |
1219 | |
1220 | tc_pgid = tcgetpgrp(STDOUT_FILENO); |
1221 | if (tc_pgid != man_pgid) { |
1222 | if (tc_pgid == pager_pid) { |
1223 | (void)tcsetpgrp(STDOUT_FILENO, man_pgid); |
1224 | if (signum == SIGTTIN) |
1225 | continue; |
1226 | } else |
1227 | outst->tag_files->tcpgid = tc_pgid; |
1228 | kill(0, signum); |
1229 | continue; |
1230 | } |
1231 | |
1232 | |
1233 | |
1234 | if (pager_pid) { |
1235 | (void)tcsetpgrp(STDOUT_FILENO, pager_pid); |
1236 | kill(pager_pid, SIGCONT); |
1237 | } else |
1238 | pager_pid = spawn_pager(outst, tag_target); |
1239 | |
1240 | |
1241 | |
1242 | while ((wait_pid = waitpid(pager_pid, &status, |
1243 | WUNTRACED)) == -1 && errno == EINTR) |
1244 | continue; |
1245 | |
1246 | if (wait_pid == -1) { |
1247 | mandoc_msg(MANDOCERR_WAIT, 0, 0, |
1248 | "%s", strerror(errno)); |
1249 | break; |
1250 | } |
1251 | if (!WIFSTOPPED(status)) |
1252 | break; |
1253 | |
1254 | signum = WSTOPSIG(status); |
1255 | } |
1256 | } |
1257 | |
1258 | static pid_t |
1259 | spawn_pager(struct outstate *outst, char *tag_target) |
1260 | { |
1261 | const struct timespec timeout = { 0, 100000000 }; |
1262 | #define MAX_PAGER_ARGS 16 |
1263 | char *argv[MAX_PAGER_ARGS]; |
1264 | const char *pager; |
1265 | char *cp; |
1266 | size_t wordlen; |
1267 | size_t cmdlen; |
1268 | int argc, use_ofn; |
1269 | pid_t pager_pid; |
1270 | |
1271 | assert(outst->tag_files->ofd == -1); |
1272 | assert(outst->tag_files->tfs == NULL); |
1273 | |
1274 | pager = getenv("MANPAGER"); |
1275 | if (pager == NULL || *pager == '\0') |
1276 | pager = getenv("PAGER"); |
1277 | if (pager == NULL || *pager == '\0') |
1278 | pager = "less"; |
1279 | |
1280 | |
1281 | |
1282 | |
1283 | |
1284 | |
1285 | argc = 0; |
1286 | while (*pager != '\0' && argc + 5 < MAX_PAGER_ARGS) { |
1287 | wordlen = strcspn(pager, " "); |
1288 | argv[argc++] = mandoc_strndup(pager, wordlen); |
1289 | pager += wordlen; |
1290 | while (*pager == ' ') |
1291 | pager++; |
1292 | } |
1293 | |
1294 | |
1295 | |
1296 | use_ofn = 1; |
1297 | if (*outst->tag_files->tfn != '\0' && |
1298 | (cmdlen = strlen(argv[0])) >= 4) { |
1299 | cp = argv[0] + cmdlen - 4; |
1300 | if (strcmp(cp, "less") == 0 || strcmp(cp, "more") == 0) { |
1301 | argv[argc++] = mandoc_strdup("-T"); |
1302 | argv[argc++] = mandoc_strdup(outst->tag_files->tfn); |
1303 | if (tag_target != NULL) { |
1304 | argv[argc++] = mandoc_strdup("-t"); |
1305 | argv[argc++] = mandoc_strdup(tag_target); |
1306 | use_ofn = 0; |
1307 | } |
1308 | } |
1309 | } |
1310 | if (use_ofn) { |
1311 | if (outst->outtype == OUTT_HTML && tag_target != NULL) |
1312 | mandoc_asprintf(&argv[argc], "file://%s#%s", |
1313 | outst->tag_files->ofn, tag_target); |
1314 | else |
1315 | argv[argc] = mandoc_strdup(outst->tag_files->ofn); |
1316 | argc++; |
1317 | } |
1318 | argv[argc] = NULL; |
1319 | |
1320 | switch (pager_pid = fork()) { |
1321 | case -1: |
1322 | mandoc_msg(MANDOCERR_FORK, 0, 0, "%s", strerror(errno)); |
1323 | exit(mandoc_msg_getrc()); |
1324 | case 0: |
1325 | break; |
1326 | default: |
1327 | while (argc > 0) |
1328 | free(argv[--argc]); |
1329 | (void)setpgid(pager_pid, 0); |
1330 | (void)tcsetpgrp(STDOUT_FILENO, pager_pid); |
1331 | if (pledge("stdio rpath tmppath tty proc", NULL) == -1) { |
1332 | mandoc_msg(MANDOCERR_PLEDGE, 0, 0, |
1333 | "%s", strerror(errno)); |
1334 | exit(mandoc_msg_getrc()); |
1335 | } |
1336 | outst->tag_files->pager_pid = pager_pid; |
1337 | return pager_pid; |
1338 | } |
1339 | |
1340 | |
1341 | |
1342 | |
1343 | |
1344 | |
1345 | while (tcgetpgrp(STDOUT_FILENO) != getpid()) |
1346 | nanosleep(&timeout, NULL); |
1347 | |
1348 | execvp(argv[0], argv); |
1349 | mandoc_msg(MANDOCERR_EXEC, 0, 0, "%s: %s", argv[0], strerror(errno)); |
1350 | _exit(mandoc_msg_getrc()); |
1351 | } |