static void test_strextend(void) {
_cleanup_free_ char *str = NULL;
assert_se(strextend(&str, NULL));
assert_se(streq_ptr(str, ""));
assert_se(strextend(&str, "", "0", "", "", "123", NULL));
assert_se(streq_ptr(str, "0123"));
assert_se(strextend(&str, "456", "78", "9", NULL));
assert_se(streq_ptr(str, "0123456789"));
}
int namespace_flag_to_string_many(unsigned long flags, char **ret) {
_cleanup_free_ char *s = NULL;
unsigned i;
for (i = 0; namespace_flag_map[i].name; i++) {
if ((flags & namespace_flag_map[i].flag) != namespace_flag_map[i].flag)
continue;
if (!s) {
s = strdup(namespace_flag_map[i].name);
if (!s)
return -ENOMEM;
} else {
if (!strextend(&s, " ", namespace_flag_map[i].name, NULL))
return -ENOMEM;
}
}
if (!s) {
s = strdup("");
if (!s)
return -ENOMEM;
}
*ret = s;
s = NULL;
return 0;
}
/*
* help_me: The big one. The help procedure that handles working out
* what was actually requested, sets up the paused topic list if it is
* needed, does pretty much all the hard work.
*/
static void help_me (char *topics, char *args)
{
char * ptr;
glob_t g;
int entries = 0,
cnt,
i,
cols;
Stat stat_buf;
char path[BIG_BUFFER_SIZE+1];
int help_paused_first_call = 0;
char * help_paused_path = (char *) 0;
char * help_paused_name = (char *) 0;
char * temp;
char tmp[BIG_BUFFER_SIZE+1];
char buffer[BIG_BUFFER_SIZE+1];
char * pattern = NULL;
strlcpy(help_topic_list, topics, sizeof help_topic_list);
ptr = get_string_var(HELP_PATH_VAR);
snprintf(path, sizeof path, "%s/%s", ptr, topics);
for (ptr = path; (ptr = strchr(ptr, ' '));)
*ptr = '/';
/*
* first we check access to the help dir, whinge if we can't, then
* work out we need to ask them for more help, else we check the
* args list, and do the stuff
*/
if (help_show_directory)
{
help_show_paused_topic(paused_topic, empty_string);
help_show_directory = 0;
}
finished_help_paging = 0;
if (access(path, R_OK|X_OK))
{
help_put_it(no_help, "*** Cannot access help directory!");
set_help_screen((Screen *) 0);
return;
}
this_arg = next_arg(args, &args);
if (!this_arg && *help_topic_list && get_int_var(HELP_PROMPT_VAR))
{
if ((temp = strrchr(help_topic_list, ' ')) != NULL)
*temp = '\0';
else
*help_topic_list = '\0';
snprintf(tmp, sizeof tmp, "%s%sHelp? ", help_topic_list, *help_topic_list ? " " : empty_string);
if (!dumb_mode)
add_wait_prompt(tmp, help_me, help_topic_list, WAIT_PROMPT_LINE, 1);
return;
}
if (!this_arg)
{
set_help_screen((Screen *) 0);
return;
}
create_help_window();
if (!help_window)
return;
/*
* This is just a bogus while loop which is intended to allow
* the user to do '/help alias expressions' without having to
* include a slash inbetween the topic and subtopic.
*
* If all goes well, we 'break' at the bottom of the loop.
*/
while (this_arg)
{
entries = 0;
if (!*this_arg)
help_topic(path, NULL);
if (strcmp(this_arg, "?") == 0)
{
this_arg = empty_string;
if (!dont_pause_topic)
dont_pause_topic = 1;
}
/*
* entry_size is set to the width of the longest help topic
* (adjusted for compression extensions, of course.)
*/
entry_size = 0;
/*
* Gather up the names of the files in the help directory.
*/
{
size_t size;
#ifndef HAVE_FCHDIR
char opath[MAXPATHLEN + 1];
getcwd(opath, MAXPATHLEN);
#else
int cwd = open(".", O_RDONLY);
#endif
size = strlen(path) + 2 + strlen(this_arg) + 3;
chdir(path);
pattern = alloca(size);
snprintf(pattern, size, "%s*", this_arg);
#ifdef GLOB_INSENSITIVE
bsd_glob(pattern, GLOB_INSENSITIVE, NULL, &g);
#else
bsd_glob(pattern, 0, NULL, &g);
#endif
#ifndef HAVE_FCHDIR
chdir(opath);
#else
fchdir(cwd);
close(cwd);
#endif
}
for (i = 0; i < g.gl_matchc; i++)
{
char *tmp2 = g.gl_pathv[i];
int len = strlen(tmp2);
if (!end_strcmp(tmp2, ".gz", 3))
len -= 3;
entry_size = (len > entry_size) ? len : entry_size;
}
/*
* Right here we need to check for an 'exact match'.
* An 'exact match' would be sitting in gl_pathv[0],
* and it is 'exact' if it is identical to what we are
* looking for, or if it is the same except that it has
* a compression extension on it
*/
if (g.gl_matchc > 1)
{
char *str1 = g.gl_pathv[0];
const char *str2 = this_arg;
int len1 = strlen(str1);
int len2 = strlen(str2);
if (len1 == len2 && !my_stricmp(str1, str2))
entries = 1;
else if (len1 - 3 == len2 && !my_strnicmp(str1, str2, len2) && !end_strcmp(str1, ".gz", 3))
entries = 1;
else if (len1 - 2 == len2 && !my_strnicmp(str1, str2, len2) && !end_strcmp(str1, ".Z", 2))
entries = 1;
else if (len1 - 2 == len2 && !my_strnicmp(str1, str2, len2) && !end_strcmp(str1, ".z", 2))
entries = 1;
}
if (!*help_topic_list)
dont_pause_topic = 1;
/* reformatted */
/*
* entries: -1 means something really died, 0 means there
* was no help, 1, means it wasn't a directory, and so to
* show the help file, and the default means to add the
* stuff to the paused topic list..
*/
if (!entries)
entries = g.gl_matchc;
switch (entries)
{
case -1:
{
help_put_it(no_help, "*** Error during help function: %s", strerror(errno));
set_help_screen(NULL);
if (help_paused_first_call)
{
help_topic(help_paused_path, help_paused_name);
help_paused_first_call = 0;
new_free(&help_paused_path);
new_free(&help_paused_name);
}
message_from(NULL, LOG_CRAP);
return;
}
case 0:
{
help_put_it(this_arg, "*** No help available on %s: Use ? for list of topics", this_arg);
if (!get_int_var(HELP_PROMPT_VAR))
{
set_help_screen(NULL);
break;
}
snprintf(tmp, sizeof tmp, "%s%sHelp? ", help_topic_list, *help_topic_list ? " " : empty_string);
if (!dumb_mode)
add_wait_prompt(tmp, help_me, help_topic_list, WAIT_PROMPT_LINE, 1);
if (help_paused_first_call)
{
help_topic(help_paused_path, help_paused_name);
help_paused_first_call = 0;
new_free(&help_paused_path);
new_free(&help_paused_name);
}
break;
}
case 1:
{
snprintf(tmp, sizeof tmp, "%s/%s", path, g.gl_pathv[0]);
stat(tmp, &stat_buf);
if (stat_buf.st_mode & S_IFDIR)
{
strlcpy(path, tmp, sizeof path);
if (*help_topic_list)
strlcat(help_topic_list, " ", sizeof help_topic_list);
strlcat(help_topic_list, g.gl_pathv[0], sizeof help_topic_list);
if (!(this_arg = next_arg(args, &args)))
{
help_paused_first_call = 1;
malloc_strcpy(&help_paused_path, path);
malloc_strcpy(&help_paused_name, g.gl_pathv[0]);
dont_pause_topic = -1;
this_arg = "?";
}
bsd_globfree(&g);
continue;
}
else
{
help_topic(path, g.gl_pathv[0]);
finished_help_paging = 0;
break;
}
}
default:
{
help_show_directory = 1;
strlcpy(paused_topic, help_topic_list, sizeof paused_topic);
help_pause_add_line("*** %s choices:", help_topic_list);
entry_size += 2;
cols = (current_term->TI_cols - 10) / entry_size;
strlcpy(buffer, empty_string, sizeof(buffer));
cnt = 0;
for (i = 0; i < entries; i++)
{
if (!end_strcmp(g.gl_pathv[i], ".gz", 3))
chop(g.gl_pathv[i], 3);
strlcat(buffer, g.gl_pathv[i], sizeof buffer);
/*
* Since we already know how many columns each
* line will contain, we check to see if we have
* accumulated that many entries. If we have, we
* output the line to the screen.
*/
if (++cnt == cols)
{
help_pause_add_line("%s", buffer);
*buffer = 0;
cnt = 0;
}
/*
* If we have not finished this line, then we have
* to pad the name length out to the expected width.
* 'entry_size' is the column width. We also have
* do adjust for compression extension.
*/
else
strextend(buffer, ' ', entry_size - strlen(g.gl_pathv[i]));
}
help_pause_add_line("%s", buffer);
if (help_paused_first_call)
{
help_topic(help_paused_path, help_paused_name);
help_paused_first_call = 0;
new_free(&help_paused_path);
new_free(&help_paused_name);
}
if (dont_pause_topic == 1)
{
help_show_paused_topic(paused_topic, empty_string);
help_show_directory = 0;
}
break;
}
}
/* end of reformatting */
bsd_globfree(&g);
break;
}
/*
* This one is for when there was never a topic and the prompt
* never got a topic.. and help_screen was never reset..
* phone, jan 1993.
*/
if (!*help_topic_list && finished_help_paging)
set_help_screen((Screen *) 0);
message_from(NULL, LOG_CRAP);
}
/* Go through the file and parse each line */
int config_parse(const char *unit,
const char *filename,
FILE *f,
const char *sections,
ConfigItemLookup lookup,
const void *table,
ConfigParseFlags flags,
void *userdata) {
_cleanup_free_ char *section = NULL, *continuation = NULL;
_cleanup_fclose_ FILE *ours = NULL;
unsigned line = 0, section_line = 0;
bool section_ignored = false;
int r;
assert(filename);
assert(lookup);
if (!f) {
f = ours = fopen(filename, "re");
if (!f) {
/* Only log on request, except for ENOENT,
* since we return 0 to the caller. */
if ((flags & CONFIG_PARSE_WARN) || errno == ENOENT)
log_full_errno(errno == ENOENT ? LOG_DEBUG : LOG_ERR, errno,
"Failed to open configuration file '%s': %m", filename);
return errno == ENOENT ? 0 : -errno;
}
}
fd_warn_permissions(filename, fileno(f));
for (;;) {
_cleanup_free_ char *buf = NULL;
bool escaped = false;
char *l, *p, *e;
r = read_line(f, LONG_LINE_MAX, &buf);
if (r == 0)
break;
if (r == -ENOBUFS) {
if (flags & CONFIG_PARSE_WARN)
log_error_errno(r, "%s:%u: Line too long", filename, line);
return r;
}
if (r < 0) {
if (CONFIG_PARSE_WARN)
log_error_errno(r, "%s:%u: Error while reading configuration file: %m", filename, line);
return r;
}
l = buf;
if (!(flags & CONFIG_PARSE_REFUSE_BOM)) {
char *q;
q = startswith(buf, UTF8_BYTE_ORDER_MARK);
if (q) {
l = q;
flags |= CONFIG_PARSE_REFUSE_BOM;
}
}
if (continuation) {
if (strlen(continuation) + strlen(l) > LONG_LINE_MAX) {
if (flags & CONFIG_PARSE_WARN)
log_error("%s:%u: Continuation line too long", filename, line);
return -ENOBUFS;
}
if (!strextend(&continuation, l, NULL)) {
if (flags & CONFIG_PARSE_WARN)
log_oom();
return -ENOMEM;
}
p = continuation;
} else
p = l;
for (e = p; *e; e++) {
if (escaped)
escaped = false;
else if (*e == '\\')
escaped = true;
}
if (escaped) {
*(e-1) = ' ';
if (!continuation) {
continuation = strdup(l);
if (!continuation) {
if (flags & CONFIG_PARSE_WARN)
log_oom();
return -ENOMEM;
}
}
continue;
}
r = parse_line(unit,
filename,
++line,
sections,
lookup,
table,
flags,
§ion,
§ion_line,
§ion_ignored,
p,
userdata);
if (r < 0) {
if (flags & CONFIG_PARSE_WARN)
log_warning_errno(r, "%s:%u: Failed to parse file: %m", filename, line);
return r;
}
continuation = mfree(continuation);
}
if (continuation) {
r = parse_line(unit,
filename,
++line,
sections,
lookup,
table,
flags,
§ion,
§ion_line,
§ion_ignored,
continuation,
userdata);
if (r < 0) {
if (flags & CONFIG_PARSE_WARN)
log_warning_errno(r, "%s:%u: Failed to parse file: %m", filename, line);
return r;
}
}
return 0;
}
static void test_strextend(void) {
_cleanup_free_ char *str = strdup("0123");
strextend(&str, "456", "78", "9", NULL);
assert_se(streq(str, "0123456789"));
}
