static boolean loadPathKinds (xcmdPath *const path, const langType language)
{
enum pcoprocError r;
FILE* pp = NULL;
char * argv[3];
int status;
vString * opt;
char file_kind = getLanguageFileKind (language)->letter;
opt = vStringNewInit(XCMD_LIST_KIND_OPTION);
vStringCatS (opt, "=");
vStringCatS (opt, getLanguageName(language));
argv[2] = NULL;
argv[1] = vStringValue (opt);
argv[0] = vStringValue (path->path);
errno = 0;
if (getuid() == 0 || geteuid() == 0)
{
verbose ("all xcmd feature is disabled when running ctags in root privilege\n");
vStringDelete (opt);
return FALSE;
}
if (! isSafeExecutable (argv [0]))
{
vStringDelete (opt);
return FALSE;
}
verbose ("loading path kinds of %s from [%s %s]\n", getLanguageName(language), argv[0], argv[1]);
r = pcoprocOpen (vStringValue (path->path), argv, &pp, NULL);
switch (r) {
case PCOPROC_ERROR_WPIPE:
error (WARNING | PERROR, "failed to make pipe to write to command: [%s %s]",
argv[0], argv[1]);
break;
case PCOPROC_ERROR_RPIPE:
error (WARNING | PERROR, "failed to make pipe to read from command: [%s %s]",
argv[0], argv[1]);
break;
case PCOPROC_ERROR_FORK:
error (WARNING | PERROR, "failed to do fork: [%s %s]",
argv[0], argv[1]);
break;
case PCOPROC_SUCCESSFUL:
break;
}
if (pp)
{
vString* vline = vStringNew();
while (readLineWithNoSeek (vline, pp))
{
char* line;
char kind_letter;
vStringStripNewline (vline);
line = vStringValue (vline);
if (!loadPathKind (path, line, argv))
break;
kind_letter = path->kinds [path->n_kinds - 1].letter;
if (kind_letter == file_kind)
error (FATAL,
"Kind letter \'%c\' returned from xcmd %s of %s language is reserved in ctags main",
kind_letter,
vStringValue (path->path),
getLanguageName (language));
}
vStringDelete (vline);
status = pcoprocClose (pp);
/* TODO: Decode status */
verbose(" status: %d\n", status);
if (status != 0)
{
if (status > 0
&& WIFEXITED (status)
&& (WEXITSTATUS (status) == path->not_available_status))
verbose ("xcmd: the %s backend is not available\n", argv[0]);
else
error (WARNING, "xcmd exits abnormally status(%d): [%s %s]",
status, argv[0], argv[1]);
vStringDelete (opt);
return FALSE;
}
}
else
{
error (WARNING | PERROR, "cannot make pipe to xcmd: [%s %s]",
argv[0], argv[1]);
}
vStringDelete (opt);
return path->kinds == NULL? FALSE: TRUE;
}
static boolean loadPathKinds (xcmdPath *const path, const langType language)
{
enum pcoproc_error r;
FILE* pp = NULL;
char * argv[3];
int status;
vString * opt;
opt = vStringNewInit(XCMD_LIST_KIND_OPTION);
vStringCatS (opt, "=");
vStringCatS (opt, getLanguageName(language));
argv[2] = NULL;
argv[1] = vStringValue (opt);
argv[0] = vStringValue (path->path);
errno = 0;
verbose ("loading path kinds of %s from [%s %s]\n", getLanguageName(language), argv[0], argv[1]);
r = pcoproc_open (vStringValue (path->path), argv, &pp, NULL);
switch (r) {
case PCOPROC_ERROR_WPIPE:
error (WARNING | PERROR, "failed to make pipe to write to command: [%s %s]",
argv[0], argv[1]);
break;
case PCOPROC_ERROR_RPIPE:
error (WARNING | PERROR, "failed to make pipe to read from command: [%s %s]",
argv[0], argv[1]);
break;
case PCOPROC_ERROR_FORK:
error (WARNING | PERROR, "failed to do fork: [%s %s]",
argv[0], argv[1]);
break;
case PCOPROC_SUCCESSFUL:
break;
}
if (pp)
{
vString* vline = vStringNew();
while (readLineWithNoSeek (vline, pp))
{
char* line;
vStringStripNewline (vline);
line = vStringValue (vline);
if (!loadPathKind (path, line, argv))
break;
}
vStringDelete (vline);
status = pcoproc_close (pp);
/* TODO: Decode status */
verbose(" status: %d\n", status);
if (status != 0)
{
if (status > 0
&& WIFEXITED (status)
&& (WEXITSTATUS (status) == XCMD_NOT_AVAILABLE_STATUS))
notice ("xcmd recognizes %s is not available", argv[0]);
else
error (WARNING, "xcmd exits abnormally status(%d): [%s %s]",
status, argv[0], argv[1]);
vStringDelete (opt);
return FALSE;
}
}
else
{
error (WARNING | PERROR, "cannot make pipe to xcmd: [%s %s]",
argv[0], argv[1]);
}
vStringDelete (opt);
return path->kinds == NULL? FALSE: TRUE;
}