version 1.11, 2015/11/20 21:59:54 |
version 1.16, 2016/11/08 16:23:58 |
|
|
/* $Id$ */ |
/* $Id$ */ |
/* |
/* |
* Copyright (c) 2015 Ingo Schwarze <schwarze@openbsd.org> |
* Copyright (c) 2015, 2016 Ingo Schwarze <schwarze@openbsd.org> |
* |
* |
* Permission to use, copy, modify, and distribute this software for any |
* Permission to use, copy, modify, and distribute this software for any |
* purpose with or without fee is hereby granted, provided that the above |
* purpose with or without fee is hereby granted, provided that the above |
|
|
#include "tag.h" |
#include "tag.h" |
|
|
struct tag_entry { |
struct tag_entry { |
size_t line; |
size_t *lines; |
|
size_t maxlines; |
|
size_t nlines; |
int prio; |
int prio; |
char s[]; |
char s[]; |
}; |
}; |
|
|
static void tag_signal(int); |
static void tag_signal(int) __attribute__((noreturn)); |
|
|
static struct ohash tag_data; |
static struct ohash tag_data; |
static struct tag_files tag_files; |
static struct tag_files tag_files; |
|
|
tag_files.tfd = -1; |
tag_files.tfd = -1; |
tag_files.tcpgid = -1; |
tag_files.tcpgid = -1; |
|
|
|
/* Clean up when dying from a signal. */ |
|
|
|
memset(&sa, 0, sizeof(sa)); |
|
sigfillset(&sa.sa_mask); |
|
sa.sa_handler = tag_signal; |
|
sigaction(SIGHUP, &sa, NULL); |
|
sigaction(SIGINT, &sa, NULL); |
|
sigaction(SIGTERM, &sa, NULL); |
|
|
|
/* |
|
* POSIX requires that a process calling tcsetpgrp(3) |
|
* from the background gets a SIGTTOU signal. |
|
* In that case, do not stop. |
|
*/ |
|
|
|
sa.sa_handler = SIG_IGN; |
|
sigaction(SIGTTOU, &sa, NULL); |
|
|
/* Save the original standard output for use by the pager. */ |
/* Save the original standard output for use by the pager. */ |
|
|
if ((tag_files.ofd = dup(STDOUT_FILENO)) == -1) |
if ((tag_files.ofd = dup(STDOUT_FILENO)) == -1) |
|
|
sizeof(tag_files.ofn)); |
sizeof(tag_files.ofn)); |
(void)strlcpy(tag_files.tfn, "/tmp/man.XXXXXXXXXX", |
(void)strlcpy(tag_files.tfn, "/tmp/man.XXXXXXXXXX", |
sizeof(tag_files.tfn)); |
sizeof(tag_files.tfn)); |
memset(&sa, 0, sizeof(sa)); |
|
sigfillset(&sa.sa_mask); |
|
sa.sa_handler = tag_signal; |
|
sigaction(SIGHUP, &sa, NULL); |
|
sigaction(SIGINT, &sa, NULL); |
|
sigaction(SIGTERM, &sa, NULL); |
|
if ((ofd = mkstemp(tag_files.ofn)) == -1) |
if ((ofd = mkstemp(tag_files.ofn)) == -1) |
goto fail; |
goto fail; |
if ((tag_files.tfd = mkstemp(tag_files.tfn)) == -1) |
if ((tag_files.tfd = mkstemp(tag_files.tfn)) == -1) |
Line 116 tag_put(const char *s, int prio, size_t line) |
|
Line 130 tag_put(const char *s, int prio, size_t line) |
|
size_t len; |
size_t len; |
unsigned int slot; |
unsigned int slot; |
|
|
if (tag_files.tfd <= 0 || strchr(s, ' ') != NULL) |
/* Sanity checks. */ |
|
|
|
if (tag_files.tfd <= 0) |
return; |
return; |
|
if (s[0] == '\\' && (s[1] == '&' || s[1] == 'e')) |
|
s += 2; |
|
if (*s == '\0' || strchr(s, ' ') != NULL) |
|
return; |
|
|
slot = ohash_qlookup(&tag_data, s); |
slot = ohash_qlookup(&tag_data, s); |
entry = ohash_find(&tag_data, slot); |
entry = ohash_find(&tag_data, slot); |
|
|
if (entry == NULL) { |
if (entry == NULL) { |
|
|
|
/* Build a new entry. */ |
|
|
len = strlen(s) + 1; |
len = strlen(s) + 1; |
entry = mandoc_malloc(sizeof(*entry) + len); |
entry = mandoc_malloc(sizeof(*entry) + len); |
memcpy(entry->s, s, len); |
memcpy(entry->s, s, len); |
|
entry->lines = NULL; |
|
entry->maxlines = entry->nlines = 0; |
ohash_insert(&tag_data, slot, entry); |
ohash_insert(&tag_data, slot, entry); |
} else if (entry->prio <= prio) |
|
return; |
} else { |
entry->line = line; |
|
|
/* Handle priority 0 entries. */ |
|
|
|
if (prio == 0) { |
|
if (entry->prio == 0) |
|
entry->prio = -1; |
|
return; |
|
} |
|
|
|
/* A better entry is already present, ignore the new one. */ |
|
|
|
if (entry->prio > 0 && entry->prio < prio) |
|
return; |
|
|
|
/* The existing entry is worse, clear it. */ |
|
|
|
if (entry->prio < 1 || entry->prio > prio) |
|
entry->nlines = 0; |
|
} |
|
|
|
/* Remember the new line. */ |
|
|
|
if (entry->maxlines == entry->nlines) { |
|
entry->maxlines += 4; |
|
entry->lines = mandoc_reallocarray(entry->lines, |
|
entry->maxlines, sizeof(*entry->lines)); |
|
} |
|
entry->lines[entry->nlines++] = line; |
entry->prio = prio; |
entry->prio = prio; |
} |
} |
|
|
|
|
{ |
{ |
FILE *stream; |
FILE *stream; |
struct tag_entry *entry; |
struct tag_entry *entry; |
|
size_t i; |
unsigned int slot; |
unsigned int slot; |
|
|
if (tag_files.tfd <= 0) |
if (tag_files.tfd <= 0) |
|
|
stream = fdopen(tag_files.tfd, "w"); |
stream = fdopen(tag_files.tfd, "w"); |
entry = ohash_first(&tag_data, &slot); |
entry = ohash_first(&tag_data, &slot); |
while (entry != NULL) { |
while (entry != NULL) { |
if (stream != NULL) |
if (stream != NULL && entry->prio >= 0) |
fprintf(stream, "%s %s %zu\n", |
for (i = 0; i < entry->nlines; i++) |
entry->s, tag_files.ofn, entry->line); |
fprintf(stream, "%s %s %zu\n", |
|
entry->s, tag_files.ofn, entry->lines[i]); |
|
free(entry->lines); |
free(entry); |
free(entry); |
entry = ohash_next(&tag_data, &slot); |
entry = ohash_next(&tag_data, &slot); |
} |
} |