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diff --git a/imap/httpd.c b/imap/httpd.c
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index dc53f8c..24b65e5 100644
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--- a/imap/httpd.c
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+++ b/imap/httpd.c
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@@ -2202,7 +2202,7 @@ EXPORTED time_t calc_compile_time(const char *time, const char *date)
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     memset(&tm, 0, sizeof(struct tm));
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     tm.tm_isdst = -1;
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     sscanf(time, "%02d:%02d:%02d", &tm.tm_hour, &tm.tm_min, &tm.tm_sec);
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-    sscanf(date, "%s %2d %4d", month, &tm.tm_mday, &tm.tm_year);
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+    sscanf(date, "%3s %2d %4d", month, &tm.tm_mday, &tm.tm_year);
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     tm.tm_year -= 1900;
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     for (tm.tm_mon = 0; tm.tm_mon < 12; tm.tm_mon++) {
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         if (!strcmp(month, monthname[tm.tm_mon])) break;
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diff --git a/imap/ical_support.c b/imap/ical_support.c
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index 1d7550a..e1bda50 100644
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--- a/imap/ical_support.c
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+++ b/imap/ical_support.c
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@@ -458,7 +458,7 @@ const char *get_icalcomponent_errstr(icalcomponent *ical)
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                 /* Check if this is an empty property error */
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                 if (sscanf(errstr,
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-                           "No value for %s property", propname) == 1) {
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+                           "No value for %255s property", propname) == 1) {
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                     /* Empty LOCATION is OK */
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                     if (!strcasecmp(propname, "LOCATION")) continue;
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                     if (!strcasecmp(propname, "COMMENT")) continue;