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-rwxr-xr-xsrc/io.c315
1 files changed, 231 insertions, 84 deletions
diff --git a/src/io.c b/src/io.c
index 545d565..2fb334c 100755
--- a/src/io.c
+++ b/src/io.c
@@ -1,4 +1,4 @@
-/* $calcurse: io.c,v 1.37 2008/09/21 08:06:43 culot Exp $ */
+/* $calcurse: io.c,v 1.38 2008/09/23 17:31:56 culot Exp $ */
/*
* Calcurse - text-based organizer
@@ -1369,6 +1369,8 @@ static void
ical_store_todo (int priority, char *mesg, char *note)
{
todo_add (mesg, priority, note);
+ mem_free (mesg);
+ mem_free (note);
}
static void
@@ -1381,14 +1383,14 @@ ical_store_event (char *mesg, char *note, long day, ical_rpt_t *rpt,
{
recur_event_new (mesg, note, day, EVENTID, rpt->type, rpt->freq,
rpt->until, exc);
- free (rpt);
+ mem_free (rpt);
}
else
{
event_new (mesg, note, day, EVENTID);
}
- if (note)
- free (note);
+ mem_free (mesg);
+ mem_free (note);
}
static void
@@ -1403,14 +1405,142 @@ ical_store_apoint (char *mesg, char *note, long start, long dur,
{
recur_apoint_new (mesg, note, start, dur, state, rpt->type, rpt->freq,
rpt->until, exc);
- free (rpt);
+ mem_free (rpt);
}
else
{
apoint_new (mesg, note, start, dur, state);
}
- if (note)
- free (note);
+ mem_free (mesg);
+ mem_free (note);
+}
+
+/*
+ * Returns an allocated string representing the string given in argument once
+ * unformatted. See ical_unfold_content () below.
+ *
+ * Note:
+ * Even if the RFC2445 recommends not to have more than 75 octets on one line of
+ * text, I prefer not to restrict the parsing to this size, thus I use a buffer
+ * of size BUFSIZ.
+ *
+ * Extract from RFC2445:
+ * Lines of text SHOULD NOT be longer than 75 octets, excluding the line
+ * break.
+ */
+static char *
+ical_unformat_line (char *line)
+{
+#define LINE_FEED 0x0a
+#define CARRIAGE_RETURN 0x0d
+ char *p, uline[BUFSIZ];
+ int len;
+
+ if (strlen (line) >= BUFSIZ)
+ return NULL;
+
+ bzero (uline, BUFSIZ);
+ for (len = 0, p = line; *p; p++)
+ {
+ switch (*p)
+ {
+ case LINE_FEED:
+ return strdup (uline);
+ case CARRIAGE_RETURN:
+ break;
+ case '\\':
+ switch (*(p + 1))
+ {
+ case 'n':
+ uline[len++] = '\n';
+ p++;
+ break;
+ case 't':
+ uline[len++] = '\t';
+ p++;
+ break;
+ case ';':
+ case ':':
+ case ',':
+ uline[len++] = *(p + 1);
+ p++;
+ break;
+ default:
+ uline[len++] = *p;
+ break;
+ }
+ break;
+ default:
+ uline[len++] = *p;
+ break;
+ }
+ }
+#undef LINE_FEED
+#undef CARRIAGE_RETURN
+ return NULL;
+}
+
+/*
+ * Extract from RFC2445:
+ *
+ * When parsing a content line, folded lines MUST first be
+ * unfolded [..] The content information associated with an iCalendar
+ * object is formatted using a syntax similar to that defined by [RFC 2425].
+ */
+static char *
+ical_unfold_content (FILE *fd, char *line, unsigned *lineno)
+{
+ const int CHAR_SPACE = 32, CHAR_TAB = 9;
+ char *content;
+ int c;
+
+ content = ical_unformat_line (line);
+ if (!content)
+ return NULL;
+
+ for (;;)
+ {
+ c = getc (fd);
+ if (c == CHAR_SPACE || c == CHAR_TAB)
+ {
+ char buf[BUFSIZ];
+
+ if (fgets (buf, BUFSIZ, fd) != NULL)
+ {
+ char *tmpline, *rline;
+ int newsize;
+
+ (*lineno)++;
+ tmpline = ical_unformat_line (buf);
+ if (!tmpline)
+ {
+ mem_free (content);
+ return NULL;
+ }
+ newsize = strlen (content) + strlen (tmpline) + 1;
+ if ((rline = realloc (content, newsize)) == NULL)
+ {
+ mem_free (content);
+ mem_free (tmpline);
+ return NULL;
+ }
+ content = rline;
+ strncat (content, tmpline, BUFSIZ);
+ mem_free (tmpline);
+ }
+ else
+ {
+ mem_free (content);
+ return NULL;
+ /* Could not get entire item description. */
+ }
+ }
+ else
+ {
+ ungetc (c, fd);
+ return content;
+ }
+ }
}
static float
@@ -1641,21 +1771,21 @@ ical_read_rrule (FILE *log, char *rrulestr, unsigned *noskipped,
const string_t yearly = STRING_BUILD ("YEARLY");
unsigned interval;
ical_rpt_t *rpt;
- char *p;
+ char *p, *q;
rpt = NULL;
if ((p = strchr (rrulestr, ':')) != NULL)
{
- char freqstr[BUFSIZ], untilstr[BUFSIZ];
+ char freqstr[BUFSIZ];
p++;
rpt = malloc (sizeof (ical_rpt_t));
- if (sscanf (p, "FREQ=%s;", freqstr) != 1)
+ if (sscanf (p, "FREQ=%s", freqstr) != 1)
{
ical_log (log, ICAL_VEVENT, itemline,
_("recurrence frequence not found."));
(*noskipped)++;
- free (rpt);
+ mem_free (rpt);
return NULL;
}
else
@@ -1673,7 +1803,7 @@ ical_read_rrule (FILE *log, char *rrulestr, unsigned *noskipped,
ical_log (log, ICAL_VEVENT, itemline,
_("recurrence frequence not recognized."));
(*noskipped)++;
- free (rpt);
+ mem_free (rpt);
return NULL;
}
}
@@ -1687,15 +1817,18 @@ ical_read_rrule (FILE *log, char *rrulestr, unsigned *noskipped,
range-bound the recurrence. The "DTSTART" property value, if
specified, counts as the first occurrence.
*/
- if (sscanf (p, "UNTIL=%s;", untilstr) == 1)
+ if ((q = strstr (p, "UNTIL")) != NULL)
{
- rpt->until = ical_datetime2long (untilstr, NULL);
+ char *untilstr;
+
+ untilstr = strchr (q, '=');
+ rpt->until = ical_datetime2long (++untilstr, NULL);
}
else
{
unsigned count;
- if (sscanf (p, "COUNT=%u;", &count) != 1)
+ if (sscanf (p, "COUNT=%u", &count) != 1)
{
rpt->until = 0;
/* endless repetition */
@@ -1705,7 +1838,7 @@ ical_read_rrule (FILE *log, char *rrulestr, unsigned *noskipped,
rpt->count = count;
}
}
- if (sscanf (p, "INTERVAL=%u;", &interval) == 1)
+ if (sscanf (p, "INTERVAL=%u", &interval) == 1)
{
rpt->freq = interval;
}
@@ -1778,17 +1911,15 @@ ical_read_exdate (FILE *log, char *exstr, unsigned *noskipped,
return exc;
}
+/* Return an allocated string containing the name of the newly created note. */
static char *
ical_read_note (char *first_line, FILE *fdi, unsigned *noskipped,
unsigned *lineno, ical_vevent_e item_type, const int itemline,
FILE *log)
{
- const int CHAR_SPACE = 32, CHAR_TAB = 9;
- char *p, *note, *notename, buf[BUFSIZ], fullnotename[BUFSIZ];
+ char *p, *notestr, *notename, fullnotename[BUFSIZ];
FILE *fdo;
- int c;
- note = NULL;
if ((p = strchr (first_line, ':')) != NULL)
{
notename = new_tempfile (path_notes, NOTESIZ);
@@ -1800,34 +1931,20 @@ ical_read_note (char *first_line, FILE *fdi, unsigned *noskipped,
EXIT_IF (fdo == NULL, _("Warning: could not open %s, Aborting..."),
fullnotename);
p++;
- fprintf (fdo, "%s", p);
- for (;;)
+ notestr = ical_unfold_content (fdi, p, lineno);
+ if (notestr == NULL)
{
- c = getc (fdi);
- if (c == CHAR_SPACE || c == CHAR_TAB)
- {
- if (fgets (buf, BUFSIZ, fdi) != NULL)
- {
- (*lineno)++;
- fprintf (fdo, "%s", buf);
- }
- else
- {
- ical_log (log, item_type, itemline,
- _("could not get entire item description."));
- fclose (fdo);
- erase_note (&notename, ERASE_FORCE);
- (*noskipped)++;
- return NULL;
- }
- }
- else
- {
- ungetc (c, fdi);
- fclose (fdo);
- return notename;
- }
+ ical_log (log, item_type, itemline,
+ _("could not get entire item description."));
+ fclose (fdo);
+ erase_note (&notename, ERASE_FORCE);
+ (*noskipped)++;
+ return NULL;
}
+ fprintf (fdo, "%s", notestr);
+ fclose (fdo);
+ mem_free (notestr);
+ return notename;
}
else
{
@@ -1837,6 +1954,23 @@ ical_read_note (char *first_line, FILE *fdi, unsigned *noskipped,
}
}
+/* Returns an allocated string containing the ical item summary. */
+static char *
+
+ical_read_summary (char *first_line, FILE *fdi, unsigned *lineno)
+{
+ char *p, *summary;
+
+ if ((p = strchr (first_line, ':')) != NULL)
+ {
+ p++;
+ summary = ical_unfold_content (fdi, p, lineno);
+ return summary;
+ }
+ else
+ return NULL;
+}
+
static void
ical_read_event (FILE *fdi, FILE *log, unsigned *noevents, unsigned *noapoints,
unsigned *noskipped, unsigned *lineno)
@@ -1858,9 +1992,9 @@ ical_read_event (FILE *fdi, FILE *log, unsigned *noevents, unsigned *noapoints,
struct {
days_t *exc;
ical_rpt_t *rpt;
- char mesg[BUFSIZ], *note;
+ char *mesg, *note;
long start, end, dur;
- int has_summary, has_alarm;
+ int has_alarm;
} vevent;
int skip_alarm;
@@ -1882,7 +2016,7 @@ ical_read_event (FILE *fdi, FILE *log, unsigned *noevents, unsigned *noapoints,
}
if (strncmp (buf_upper, endevent.str, endevent.len) == 0)
{
- if (vevent.has_summary)
+ if (vevent.mesg)
{
switch (vevent_type)
{
@@ -1891,8 +2025,7 @@ ical_read_event (FILE *fdi, FILE *log, unsigned *noevents, unsigned *noapoints,
{
ical_log (log, ICAL_VEVENT, ITEMLINE,
_("appointment has no start time."));
- (*noskipped)++;
- return;
+ goto cleanup;
}
if (vevent.dur == 0)
{
@@ -1901,8 +2034,7 @@ ical_read_event (FILE *fdi, FILE *log, unsigned *noevents, unsigned *noapoints,
ical_log (log, ICAL_VEVENT, ITEMLINE,
_("could not compute duration "
"(no end time)."));
- (*noskipped)++;
- return;
+ goto cleanup;
}
else if (vevent.start == vevent.end)
{
@@ -1914,7 +2046,15 @@ ical_read_event (FILE *fdi, FILE *log, unsigned *noevents, unsigned *noapoints,
return;
}
else
- vevent.dur = vevent.start - vevent.end;
+ {
+ vevent.dur = vevent.end - vevent.start;
+ if (vevent.dur < 0)
+ {
+ ical_log (log, ICAL_VEVENT, ITEMLINE,
+ _("item has a negative duration."));
+ goto cleanup;
+ }
+ }
}
ical_store_apoint (vevent.mesg, vevent.note, vevent.start,
vevent.dur, vevent.rpt, vevent.exc,
@@ -1929,15 +2069,15 @@ ical_read_event (FILE *fdi, FILE *log, unsigned *noevents, unsigned *noapoints,
case UNDEFINED:
ical_log (log, ICAL_VEVENT, ITEMLINE,
_("item could not be identified."));
- (*noskipped)++;
- return;
+ goto cleanup;
break;
}
}
else
{
- ical_log (log, ICAL_VEVENT, ITEMLINE, _("item has no summary."));
- (*noskipped)++;
+ ical_log (log, ICAL_VEVENT, ITEMLINE,
+ _("could not retrieve item summary."));
+ goto cleanup;
}
return;
}
@@ -1953,8 +2093,7 @@ ical_read_event (FILE *fdi, FILE *log, unsigned *noevents, unsigned *noapoints,
{
ical_log (log, ICAL_VEVENT, ITEMLINE,
_("could not retrieve event start time."));
- (*noskipped)++;
- return;
+ goto cleanup;
}
}
else if (strncmp (buf_upper, dtend.str, dtend.len) == 0)
@@ -1967,8 +2106,7 @@ ical_read_event (FILE *fdi, FILE *log, unsigned *noevents, unsigned *noapoints,
{
ical_log (log, ICAL_VEVENT, ITEMLINE,
_("could not retrieve event end time."));
- (*noskipped)++;
- return;
+ goto cleanup;
}
}
else if (strncmp (buf_upper, duration.str, duration.len) == 0)
@@ -1977,8 +2115,7 @@ ical_read_event (FILE *fdi, FILE *log, unsigned *noevents, unsigned *noapoints,
{
ical_log (log, ICAL_VEVENT, ITEMLINE,
_("item duration malformed."));
- (*noskipped)++;
- return;
+ goto cleanup;
}
}
else if (strncmp (buf_upper, rrule.str, rrule.len) == 0)
@@ -1991,10 +2128,7 @@ ical_read_event (FILE *fdi, FILE *log, unsigned *noevents, unsigned *noapoints,
}
else if (strncmp (buf_upper, summary.str, summary.len) == 0)
{
- const int sumlen = strlen (buf) - summary.len - 1;
- memcpy (vevent.mesg, buf + summary.len, sumlen);
- vevent.mesg[sumlen - 1] = '\0';
- vevent.has_summary = 1;
+ vevent.mesg = ical_read_summary (buf, fdi, lineno);
}
else if (strncmp (buf_upper, alarm.str, alarm.len) == 0)
{
@@ -2011,6 +2145,14 @@ ical_read_event (FILE *fdi, FILE *log, unsigned *noevents, unsigned *noapoints,
ical_log (log, ICAL_VEVENT, ITEMLINE,
_("The ical file seems to be malformed. "
"The end of item was not found."));
+
+cleanup:
+
+ mem_free (vevent.note);
+ mem_free (vevent.mesg);
+ mem_free (vevent.rpt);
+ mem_free (vevent.exc);
+ (*noskipped)++;
}
static void
@@ -2018,7 +2160,7 @@ ical_read_todo (FILE *fdi, FILE *log, unsigned *notodos, unsigned *noskipped,
unsigned *lineno)
{
const string_t endtodo = STRING_BUILD ("END:VTODO");
- const string_t summary = STRING_BUILD ("SUMMARY:");
+ const string_t summary = STRING_BUILD ("SUMMARY");
const string_t alarm = STRING_BUILD ("BEGIN:VALARM");
const string_t endalarm = STRING_BUILD ("END:VALARM");
const string_t desc = STRING_BUILD ("DESCRIPTION");
@@ -2026,8 +2168,8 @@ ical_read_todo (FILE *fdi, FILE *log, unsigned *notodos, unsigned *noskipped,
const int ITEMLINE = *lineno;
char buf[BUFSIZ], buf_upper[BUFSIZ];
struct {
- char mesg[BUFSIZ], *note;
- int has_priority, has_summary, priority;
+ char *mesg, *note;
+ int has_priority, priority;
} vtodo;
int skip_alarm;
@@ -2050,15 +2192,16 @@ ical_read_todo (FILE *fdi, FILE *log, unsigned *notodos, unsigned *noskipped,
{
if (!vtodo.has_priority)
vtodo.priority = LOWEST;
- if (vtodo.has_summary)
+ if (vtodo.mesg)
{
ical_store_todo (vtodo.priority, vtodo.mesg, vtodo.note);
(*notodos)++;
}
else
{
- ical_log (log, ICAL_VTODO, ITEMLINE, _("item has no summary."));
- (*noskipped)++;
+ ical_log (log, ICAL_VTODO, ITEMLINE,
+ _("could not retrieve item summary."));
+ goto cleanup;
}
return;
}
@@ -2083,10 +2226,7 @@ ical_read_todo (FILE *fdi, FILE *log, unsigned *notodos, unsigned *noskipped,
}
else if (strncmp (buf_upper, summary.str, summary.len) == 0)
{
- const int sumlen = strlen (buf) - summary.len - 1;
- memcpy (vtodo.mesg, buf + summary.len, sumlen);
- vtodo.mesg[sumlen - 1] = '\0';
- vtodo.has_summary = 1;
+ vtodo.mesg = ical_read_summary (buf, fdi, lineno);
}
else if (strncmp (buf_upper, alarm.str, alarm.len) == 0)
{
@@ -2102,6 +2242,12 @@ ical_read_todo (FILE *fdi, FILE *log, unsigned *notodos, unsigned *noskipped,
ical_log (log, ICAL_VTODO, ITEMLINE,
_("The ical file seems to be malformed. "
"The end of item was not found."));
+
+cleanup:
+
+ mem_free (vtodo.note);
+ mem_free (vtodo.mesg);
+ (*noskipped)++;
}
static FILE *
@@ -2124,7 +2270,7 @@ get_import_stream (export_type_t type)
cancel = updatestring (win[STA].p, &stream_name, 0, 1);
if (cancel)
{
- free (stream_name);
+ mem_free (stream_name);
return NULL;
}
stream = fopen (stream_name, "r");
@@ -2134,7 +2280,7 @@ get_import_stream (export_type_t type)
wgetch (win[STA].p);
}
}
- free (stream_name);
+ mem_free (stream_name);
return stream;
}
@@ -2188,7 +2334,7 @@ io_import_data (io_mode_t mode, import_type_t type, conf_t *conf,
bzero (&stats, sizeof stats);
ical_version = ical_chk_header (stream, &stats.lines);
RETURN_IF (ical_version < 0,
- _("Warning: ical header malformed, wrong version number. "
+ _("Warning: ical header malformed or wrong version number. "
"Aborting..."));
logname = new_tempfile (logprefix, NOTESIZ);
@@ -2233,8 +2379,9 @@ io_import_data (io_mode_t mode, import_type_t type, conf_t *conf,
{
printf (proc_report, stats.lines);
printf ("\n");
- printf (lines_stats, stats.lines, stats.apoints, stats.events,
- stats.todos, stats.skipped);
+ printf (lines_stats, stats.apoints, stats.events, stats.todos,
+ stats.skipped);
+ printf ("\n");
}
/* User has the choice to look at the log file if some items could not be
@@ -2278,5 +2425,5 @@ io_import_data (io_mode_t mode, import_type_t type, conf_t *conf,
}
EXIT_IF (unlink (flogname) != 0,
_("Warning: could not erase temporary log file, Aborting..."));
- free (logname);
+ mem_free (logname);
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-24 19:07:40 +0000