version 1.248, 2017/05/05 13:17:55 |
version 1.256, 2017/08/26 20:38:14 |
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#include "config.h" |
#include "config.h" |
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#include <sys/types.h> |
#include <sys/types.h> |
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#include <sys/mman.h> |
#include <sys/stat.h> |
#include <sys/stat.h> |
#include <sys/wait.h> |
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#include <assert.h> |
#include <assert.h> |
#include <ctype.h> |
#include <ctype.h> |
Line 302 static const struct mdoc_handler __mdocs[MDOC_MAX - MD |
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Line 302 static const struct mdoc_handler __mdocs[MDOC_MAX - MD |
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{ NULL, 0, 0 }, /* En */ |
{ NULL, 0, 0 }, /* En */ |
{ NULL, TYPE_Dx, NODE_NOSRC }, /* Dx */ |
{ NULL, TYPE_Dx, NODE_NOSRC }, /* Dx */ |
{ NULL, 0, 0 }, /* %Q */ |
{ NULL, 0, 0 }, /* %Q */ |
{ NULL, 0, 0 }, /* sp */ |
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{ NULL, 0, 0 }, /* %U */ |
{ NULL, 0, 0 }, /* %U */ |
{ NULL, 0, 0 }, /* Ta */ |
{ NULL, 0, 0 }, /* Ta */ |
}; |
}; |
Line 320 mandocdb(int argc, char *argv[]) |
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Line 319 mandocdb(int argc, char *argv[]) |
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int ch, i; |
int ch, i; |
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#if HAVE_PLEDGE |
#if HAVE_PLEDGE |
if (pledge("stdio rpath wpath cpath fattr flock proc exec", NULL) == -1) { |
if (pledge("stdio rpath wpath cpath", NULL) == -1) { |
warn("pledge"); |
warn("pledge"); |
return (int)MANDOCLEVEL_SYSERR; |
return (int)MANDOCLEVEL_SYSERR; |
} |
} |
Line 421 mandocdb(int argc, char *argv[]) |
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Line 420 mandocdb(int argc, char *argv[]) |
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exitcode = (int)MANDOCLEVEL_OK; |
exitcode = (int)MANDOCLEVEL_OK; |
mchars_alloc(); |
mchars_alloc(); |
mp = mparse_alloc(mparse_options, MANDOCLEVEL_BADARG, NULL, NULL); |
mp = mparse_alloc(mparse_options, MANDOCERR_MAX, NULL, |
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MANDOC_OS_OTHER, NULL); |
mandoc_ohash_init(&mpages, 6, offsetof(struct mpage, inodev)); |
mandoc_ohash_init(&mpages, 6, offsetof(struct mpage, inodev)); |
mandoc_ohash_init(&mlinks, 6, offsetof(struct mlink, file)); |
mandoc_ohash_init(&mlinks, 6, offsetof(struct mlink, file)); |
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Line 440 mandocdb(int argc, char *argv[]) |
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Line 440 mandocdb(int argc, char *argv[]) |
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* The existing database is usable. Process |
* The existing database is usable. Process |
* all files specified on the command-line. |
* all files specified on the command-line. |
*/ |
*/ |
#if HAVE_PLEDGE |
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if (!nodb) { |
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if (pledge("stdio rpath wpath cpath fattr flock", NULL) == -1) { |
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warn("pledge"); |
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exitcode = (int)MANDOCLEVEL_SYSERR; |
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goto out; |
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} |
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} |
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#endif |
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use_all = 1; |
use_all = 1; |
for (i = 0; i < argc; i++) |
for (i = 0; i < argc; i++) |
filescan(argv[i]); |
filescan(argv[i]); |
Line 2119 dbprune(struct dba *dba) |
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Line 2110 dbprune(struct dba *dba) |
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static void |
static void |
dbwrite(struct dba *dba) |
dbwrite(struct dba *dba) |
{ |
{ |
char tfn[32]; |
struct stat sb1, sb2; |
int status; |
char tfn[33], *cp1, *cp2; |
pid_t child; |
off_t i; |
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int fd1, fd2; |
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/* |
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* Do not write empty databases, and delete existing ones |
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* when makewhatis -u causes them to become empty. |
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*/ |
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dba_array_start(dba->pages); |
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if (dba_array_next(dba->pages) == NULL) { |
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if (unlink(MANDOC_DB) == -1 && errno != ENOENT) |
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say(MANDOC_DB, "&unlink"); |
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return; |
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} |
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/* |
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* Build the database in a temporary file, |
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* then atomically move it into place. |
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*/ |
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if (dba_write(MANDOC_DB "~", dba) != -1) { |
if (dba_write(MANDOC_DB "~", dba) != -1) { |
if (rename(MANDOC_DB "~", MANDOC_DB) == -1) { |
if (rename(MANDOC_DB "~", MANDOC_DB) == -1) { |
exitcode = (int)MANDOCLEVEL_SYSERR; |
exitcode = (int)MANDOCLEVEL_SYSERR; |
Line 2132 dbwrite(struct dba *dba) |
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Line 2141 dbwrite(struct dba *dba) |
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return; |
return; |
} |
} |
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/* |
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* We lack write permission and cannot replace the database |
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* file, but let's at least check whether the data changed. |
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*/ |
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(void)strlcpy(tfn, "/tmp/mandocdb.XXXXXXXX", sizeof(tfn)); |
(void)strlcpy(tfn, "/tmp/mandocdb.XXXXXXXX", sizeof(tfn)); |
if (mkdtemp(tfn) == NULL) { |
if (mkdtemp(tfn) == NULL) { |
exitcode = (int)MANDOCLEVEL_SYSERR; |
exitcode = (int)MANDOCLEVEL_SYSERR; |
say("", "&%s", tfn); |
say("", "&%s", tfn); |
return; |
return; |
} |
} |
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cp1 = cp2 = MAP_FAILED; |
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fd1 = fd2 = -1; |
(void)strlcat(tfn, "/" MANDOC_DB, sizeof(tfn)); |
(void)strlcat(tfn, "/" MANDOC_DB, sizeof(tfn)); |
if (dba_write(tfn, dba) == -1) { |
if (dba_write(tfn, dba) == -1) { |
exitcode = (int)MANDOCLEVEL_SYSERR; |
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say(tfn, "&dba_write"); |
say(tfn, "&dba_write"); |
goto out; |
goto err; |
} |
} |
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if ((fd1 = open(MANDOC_DB, O_RDONLY, 0)) == -1) { |
switch (child = fork()) { |
say(MANDOC_DB, "&open"); |
case -1: |
goto err; |
exitcode = (int)MANDOCLEVEL_SYSERR; |
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say("", "&fork cmp"); |
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return; |
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case 0: |
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execlp("cmp", "cmp", "-s", tfn, MANDOC_DB, (char *)NULL); |
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say("", "&exec cmp"); |
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exit(0); |
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default: |
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break; |
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} |
} |
if (waitpid(child, &status, 0) == -1) { |
if ((fd2 = open(tfn, O_RDONLY, 0)) == -1) { |
exitcode = (int)MANDOCLEVEL_SYSERR; |
say(tfn, "&open"); |
say("", "&wait cmp"); |
goto err; |
} else if (WIFSIGNALED(status)) { |
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exitcode = (int)MANDOCLEVEL_SYSERR; |
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say("", "cmp died from signal %d", WTERMSIG(status)); |
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} else if (WEXITSTATUS(status)) { |
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exitcode = (int)MANDOCLEVEL_SYSERR; |
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say(MANDOC_DB, |
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"Data changed, but cannot replace database"); |
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} |
} |
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if (fstat(fd1, &sb1) == -1) { |
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say(MANDOC_DB, "&fstat"); |
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goto err; |
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} |
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if (fstat(fd2, &sb2) == -1) { |
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say(tfn, "&fstat"); |
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goto err; |
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} |
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if (sb1.st_size != sb2.st_size) |
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goto err; |
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if ((cp1 = mmap(NULL, sb1.st_size, PROT_READ, MAP_PRIVATE, |
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fd1, 0)) == MAP_FAILED) { |
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say(MANDOC_DB, "&mmap"); |
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goto err; |
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} |
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if ((cp2 = mmap(NULL, sb2.st_size, PROT_READ, MAP_PRIVATE, |
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fd2, 0)) == MAP_FAILED) { |
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say(tfn, "&mmap"); |
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goto err; |
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} |
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for (i = 0; i < sb1.st_size; i++) |
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if (cp1[i] != cp2[i]) |
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goto err; |
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goto out; |
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err: |
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exitcode = (int)MANDOCLEVEL_SYSERR; |
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say(MANDOC_DB, "Data changed, but cannot replace database"); |
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out: |
out: |
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if (cp1 != MAP_FAILED) |
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munmap(cp1, sb1.st_size); |
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if (cp2 != MAP_FAILED) |
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munmap(cp2, sb2.st_size); |
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if (fd1 != -1) |
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close(fd1); |
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if (fd2 != -1) |
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close(fd2); |
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unlink(tfn); |
*strrchr(tfn, '/') = '\0'; |
*strrchr(tfn, '/') = '\0'; |
switch (child = fork()) { |
rmdir(tfn); |
case -1: |
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exitcode = (int)MANDOCLEVEL_SYSERR; |
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say("", "&fork rm"); |
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return; |
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case 0: |
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execlp("rm", "rm", "-rf", tfn, (char *)NULL); |
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say("", "&exec rm"); |
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exit((int)MANDOCLEVEL_SYSERR); |
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default: |
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break; |
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} |
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if (waitpid(child, &status, 0) == -1) { |
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exitcode = (int)MANDOCLEVEL_SYSERR; |
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say("", "&wait rm"); |
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} else if (WIFSIGNALED(status) || WEXITSTATUS(status)) { |
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exitcode = (int)MANDOCLEVEL_SYSERR; |
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say("", "%s: Cannot remove temporary directory", tfn); |
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} |
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} |
} |
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static int |
static int |