X-Git-Url: https://diplodocus.org/git/nmh/blobdiff_plain/d6e8d44dbb990fe77f9380ef6cbcd5101807208e..04ee0c3f6ad7e4177cc43a0c57f046013a4fbac9:/uip/mhical.c

diff --git a/uip/mhical.c b/uip/mhical.c
index 27f7c9f1..402d5ad9 100644
--- a/uip/mhical.c
+++ b/uip/mhical.c
@@ -1,5 +1,4 @@
-/*
- * mhical.c -- operate on an iCalendar request
+/* mhical.c -- operate on an iCalendar request
  *
  * This code is Copyright (c) 2014, by the authors of nmh.
  * See the COPYRIGHT file in the root directory of the nmh
@@ -7,11 +6,16 @@
  */
 
 #include "h/mh.h"
+#include "sbr/path.h"
+#include "sbr/print_version.h"
+#include "sbr/print_help.h"
+#include "sbr/error.h"
 #include "h/icalendar.h"
 #include "sbr/icalparse.h"
-#include <h/fmt_scan.h>
+#include "h/fmt_scan.h"
 #include "h/addrsbr.h"
 #include "h/mts.h"
+#include "h/done.h"
 #include "h/utils.h"
 #include <time.h>
 
@@ -30,7 +34,7 @@ static void convert_common (contentline *, act);
 static void dump_unfolded (FILE *, contentline *);
 static void output (FILE *, contentline *, int);
 static void display (FILE *, contentline *, char *);
-static const char *identity (const contentline *);
+static const char *identity (const contentline *) PURE;
 static char *format_params (char *, param_list *);
 static char *fold (char *, int);
 
@@ -57,9 +61,11 @@ DEFINE_SWITCH_ARRAY(MHICAL, switches);
 #undef X
 
 vevent vevents = { NULL, NULL, NULL};
+int parser_status = 0;
 
 int
-main (int argc, char *argv[]) {
+main (int argc, char *argv[])
+{
     /* RFC 5322 § 3.3 date-time format, including the optional
        day-of-week and not including the optional seconds.  The
        zone is required by the RFC but not always output by this
@@ -69,14 +75,15 @@ main (int argc, char *argv[]) {
     act action = ACT_NONE;
     char *infile = NULL, *outfile = NULL;
     FILE *inputfile = NULL, *outputfile = NULL;
-    int contenttype = 0, unfold = 0;
+    bool contenttype = false;
+    bool unfold = false;
     vevent *v, *nextvevent;
     char *form = "mhical.24hour", *format = NULL;
     char **argp, **arguments, *cp;
 
     icaldebug = 0;  /* Global provided by bison (with name-prefix "ical"). */
 
-    if (nmh_init(argv[0], 2)) { return 1; }
+    if (nmh_init(argv[0], true, false)) { return 1; }
 
     arguments = getarguments (invo_name, argc, argv, 1);
     argp = arguments;
@@ -91,7 +98,7 @@ main (int argc, char *argv[]) {
                 ambigsw (cp, switches);
                 done (1);
             case UNKWNSW:
-                adios (NULL, "-%s unknown", cp);
+                die("-%s unknown", cp);
 
             case HELPSW: {
                 char buf[128];
@@ -108,7 +115,7 @@ main (int argc, char *argv[]) {
 
             case REPLYSW:
                 if (! (cp = *argp++) || (*cp == '-' && cp[1]))
-                    adios (NULL, "missing argument to %s", argp[-2]);
+                    die("missing argument to %s", argp[-2]);
                 if (! strcasecmp (cp, "accept")) {
                     action = ACT_ACCEPT;
                 } else if (! strcasecmp (cp, "decline")) {
@@ -118,7 +125,7 @@ main (int argc, char *argv[]) {
                 } else if (! strcasecmp (cp, "delegate")) {
                     action = ACT_DELEGATE;
                 } else {
-                    adios (NULL, "Unknown action: %s", cp);
+                    die("Unknown action: %s", cp);
                 }
                 continue;
 
@@ -128,35 +135,35 @@ main (int argc, char *argv[]) {
 
             case FORMSW:
                 if (! (form = *argp++) || *form == '-')
-                    adios (NULL, "missing argument to %s", argp[-2]);
+                    die("missing argument to %s", argp[-2]);
                 format = NULL;
                 continue;
             case FMTSW:
                 if (! (format = *argp++) || *format == '-')
-                    adios (NULL, "missing argument to %s", argp[-2]);
+                    die("missing argument to %s", argp[-2]);
                 form = NULL;
                 continue;
 
             case INFILESW:
                 if (! (cp = *argp++) || (*cp == '-' && cp[1]))
-                    adios (NULL, "missing argument to %s", argp[-2]);
+                    die("missing argument to %s", argp[-2]);
                 infile = *cp == '-'  ?  mh_xstrdup(cp)  :  path (cp, TFILE);
                 continue;
             case OUTFILESW:
                 if (! (cp = *argp++) || (*cp == '-' && cp[1]))
-                    adios (NULL, "missing argument to %s", argp[-2]);
+                    die("missing argument to %s", argp[-2]);
                 outfile = *cp == '-'  ?  mh_xstrdup(cp)  :  path (cp, TFILE);
                 continue;
 
             case CONTENTTYPESW:
-                contenttype = 1;
+                contenttype = true;
                 continue;
             case NCONTENTTYPESW:
-                contenttype = 0;
+                contenttype = false;
                 continue;
 
             case UNFOLDSW:
-                unfold = 1;
+                unfold = true;
                 continue;
             }
         }
@@ -237,7 +244,7 @@ main (int argc, char *argv[]) {
         free (outfile);
     }
 
-    return 0;
+    return parser_status;
 }
 
 /*
@@ -255,9 +262,10 @@ main (int argc, char *argv[]) {
  * - Excise VALARM sections.
  */
 static void
-convert_to_reply (contentline *clines, act action) {
+convert_to_reply (contentline *clines, act action)
+{
     char *partstat = NULL;
-    int found_my_attendee_line = 0;
+    bool found_my_attendee_line = false;
     contentline *node;
 
     convert_common (clines, action);
@@ -301,7 +309,7 @@ convert_to_reply (contentline *clines, act action) {
             while (getname ("")) { continue; }
 
             if (ismymbox (mn)) {
-                found_my_attendee_line = 1;
+                found_my_attendee_line = true;
                 for (p = node->params; p && p->param_name; p = p->next) {
                     value_list *v;
 
@@ -361,7 +369,8 @@ convert_to_reply (contentline *clines, act action) {
  * - Excise VALARM sections.
  */
 static void
-convert_to_cancellation (contentline *clines) {
+convert_to_cancellation (contentline *clines)
+{
     contentline *node;
 
     convert_common (clines, ACT_CANCEL);
@@ -383,9 +392,10 @@ convert_to_cancellation (contentline *clines) {
 }
 
 static void
-convert_common (contentline *clines, act action) {
+convert_common (contentline *clines, act action)
+{
     contentline *node;
-    int in_valarm;
+    bool in_valarm;
 
     if ((node = find_contentline (clines, "METHOD", 0))) {
         free (node->value);
@@ -399,13 +409,14 @@ convert_common (contentline *clines, act action) {
 
     if ((node = find_contentline (clines, "VERSION", 0))) {
         if (! node->value) {
-            admonish (NULL, "Version property is missing value, assume 2.0");
+            inform("Version property is missing value, assume 2.0, continuing...");
             node->value = mh_xstrdup ("2.0");
         }
 
         if (strcmp (node->value, "2.0")) {
-            admonish (NULL, "supports the Version 2.0 specified by RFC 5545 "
-                            "but iCalendar object has Version %s", node->value);
+            inform("supports the Version 2.0 specified by RFC 5545 "
+		"but iCalendar object has Version %s, continuing...",
+		node->value);
             node->value = mh_xstrdup ("2.0");
         }
     }
@@ -424,7 +435,7 @@ convert_common (contentline *clines, act action) {
             insert = "Tentative: ";
             break;
         case ACT_DELEGATE:
-            adios (NULL, "Delegate replies are not supported");
+            die("Delegate replies are not supported");
             break;
         case ACT_CANCEL:
             insert = "Cancelled:";
@@ -443,7 +454,7 @@ convert_common (contentline *clines, act action) {
             node->value = tmp;
         } else {
             /* Should never get here. */
-            adios (NULL, "Unknown action: %d", action);
+            die("Unknown action: %d", action);
         }
     }
 
@@ -460,15 +471,15 @@ convert_common (contentline *clines, act action) {
                 free (node->value);
                 node->value = mh_xstrdup (buf);
             } else {
-                admonish (NULL, "strftime unable to format current time");
+                inform("strftime unable to format current time, continuing...");
             }
         } else {
-            admonish (NULL, "gmtime_r failed on current time");
+            inform("gmtime_r failed on current time, continuing...");
         }
     }
 
     /* Excise X- lines and VALARM section(s). */
-    in_valarm = 0;
+    in_valarm = false;
     for (node = clines; node; node = node->next) {
         /* node->name will be NULL if the line was deleted. */
         if (! node->name) { continue; }
@@ -476,13 +487,13 @@ convert_common (contentline *clines, act action) {
         if (in_valarm) {
             if (! strcasecmp ("END", node->name)  &&
                 ! strcasecmp ("VALARM", node->value)) {
-                in_valarm = 0;
+                in_valarm = false;
             }
             remove_contentline (node);
         } else {
             if (! strcasecmp ("BEGIN", node->name)  &&
                 ! strcasecmp ("VALARM", node->value)) {
-                in_valarm = 1;
+                in_valarm = true;
                 remove_contentline (node);
             } else if (! strncasecmp ("X-", node->name, 2)) {
                 remove_contentline (node);
@@ -493,7 +504,8 @@ convert_common (contentline *clines, act action) {
 
 /* Echo the input, but with unfolded lines. */
 static void
-dump_unfolded (FILE *file, contentline *clines) {
+dump_unfolded (FILE *file, contentline *clines)
+{
     contentline *node;
 
     for (node = clines; node; node = node->next) {
@@ -502,7 +514,8 @@ dump_unfolded (FILE *file, contentline *clines) {
 }
 
 static void
-output (FILE *file, contentline *clines, int contenttype) {
+output (FILE *file, contentline *clines, int contenttype)
+{
     contentline *node;
 
     if (contenttype) {
@@ -534,11 +547,10 @@ output (FILE *file, contentline *clines, int contenttype) {
             line = fold (add (node->value, line),
                          clines->cr_before_lf == CR_BEFORE_LF);
 
-            if (clines->cr_before_lf == LF_ONLY) {
-                fprintf (file, "%s\n", line);
-            } else {
-                fprintf (file, "%s\r\n", line);
-            }
+            fputs(line, file);
+            if (clines->cr_before_lf != LF_ONLY)
+                putc('\r', file);
+            putc('\n', file);
             free (line);
         }
     }
@@ -556,10 +568,11 @@ output (FILE *file, contentline *clines, int contenttype) {
  *   - attendees (limited to number specified in initialization)
  */
 static void
-display (FILE *file, contentline *clines, char *nfs) {
+display (FILE *file, contentline *clines, char *nfs)
+{
     tzdesc_t timezones = load_timezones (clines);
-    int in_vtimezone;
-    int in_valarm;
+    bool in_vtimezone;
+    bool in_valarm;
     contentline *node;
     struct format *fmt;
     int dat[5] = { 0, 0, 0, INT_MAX, 0 };
@@ -594,7 +607,7 @@ display (FILE *file, contentline *clines, char *nfs) {
     }
 
     /* Only display DESCRIPTION lines that are outside VALARM section(s). */
-    in_valarm = 0;
+    in_valarm = false;
     if ((c = fmt_findcomp ("description"))) {
         for (node = clines; node; node = node->next) {
             /* node->name will be NULL if the line was deleted. */
@@ -605,12 +618,12 @@ display (FILE *file, contentline *clines, char *nfs) {
             } else if (in_valarm) {
                 if (! strcasecmp ("END", node->name)  &&
                     ! strcasecmp ("VALARM", node->value)) {
-                    in_valarm = 0;
+                    in_valarm = false;
                 }
             } else {
                 if (! strcasecmp ("BEGIN", node->name)  &&
                     ! strcasecmp ("VALARM", node->value)) {
-                    in_valarm = 1;
+                    in_valarm = true;
                 }
             }
         }
@@ -625,7 +638,7 @@ display (FILE *file, contentline *clines, char *nfs) {
 
     if ((c = fmt_findcomp ("dtstart"))) {
         /* Find DTSTART outsize of a VTIMEZONE section. */
-        in_vtimezone = 0;
+        in_vtimezone = false;
         for (node = clines; node; node = node->next) {
             /* node->name will be NULL if the line was deleted. */
             if (! node->name) { continue; }
@@ -633,12 +646,12 @@ display (FILE *file, contentline *clines, char *nfs) {
             if (in_vtimezone) {
                 if (! strcasecmp ("END", node->name)  &&
                     ! strcasecmp ("VTIMEZONE", node->value)) {
-                    in_vtimezone = 0;
+                    in_vtimezone = false;
                 }
             } else {
                 if (! strcasecmp ("BEGIN", node->name)  &&
                     ! strcasecmp ("VTIMEZONE", node->value)) {
-                    in_vtimezone = 1;
+                    in_vtimezone = true;
                 } else if (! strcasecmp ("DTSTART", node->name)) {
                     /* Got it:  DTSTART outside of a VTIMEZONE section. */
                     char *datetime = format_datetime (timezones, node);
@@ -713,7 +726,7 @@ display (FILE *file, contentline *clines, char *nfs) {
     }
 
     /* Don't call on the END:VCALENDAR line. */
-    if (clines->next) {
+    if (clines  &&  clines->next) {
       (void) fmt_scan (fmt, buffer, INT_MAX, dat, NULL);
       fputs (charstring_buffer (buffer), file);
       fmt_free (fmt, 1);
@@ -725,7 +738,8 @@ display (FILE *file, contentline *clines, char *nfs) {
 }
 
 static const char *
-identity (const contentline *node) {
+identity (const contentline *node)
+{
     /* According to RFC 5545 § 3.3.3, an email address in the value
        must be a mailto URI. */
     if (! strncasecmp (node->value, "mailto:", 7)) {
@@ -755,7 +769,8 @@ identity (const contentline *node) {
 }
 
 static char *
-format_params (char *line, param_list *p) {
+format_params (char *line, param_list *p)
+{
     for ( ; p && p->param_name; p = p->next) {
         value_list *v;
         size_t num_values = 0;
@@ -788,7 +803,8 @@ format_params (char *line, param_list *p) {
 }
 
 static char *
-fold (char *line, int uses_cr) {
+fold (char *line, int uses_cr)
+{
     size_t remaining = strlen (line);
     size_t current_line_len = 0;
     charstring_t folded_line = charstring_create (2 * remaining);
@@ -809,7 +825,7 @@ fold (char *line, int uses_cr) {
 #endif
 
         charstring_push_back_chars (folded_line, cp, char_len, 1);
-        remaining -= char_len > 0 ? char_len : 1;
+        remaining -= max(char_len, 1);
 
         /* remaining must be > 0 to pass the loop condition above, so
            if it's not > 1, it is == 1. */
@@ -824,7 +840,7 @@ fold (char *line, int uses_cr) {
             }
         }
 
-        cp += char_len > 0 ? char_len : 1;
+        cp += max(char_len, 1);
     }
 
     free (line);