lock_file.c: close(2) file descriptor on failure, avoiding leak.

[nmh] / uip / mhshowsbr.c

diff --git a/uip/mhshowsbr.c b/uip/mhshowsbr.c
index b1ec2db572cdd0a3be6370906915371d672f2fbe..ebb295b7c57a38a412e74c894b950271c86fe7b2 100644 (file)
--- a/uip/mhshowsbr.c
+++ b/uip/mhshowsbr.c
@@ -1,5 +1,4 @@
-/*
- * mhshowsbr.c -- routines to display the contents of MIME messages
+/* mhshowsbr.c -- routines to display the contents of MIME messages
  *
  * This code is Copyright (c) 2002, by the authors of nmh.  See the
  * COPYRIGHT file in the root directory of the nmh distribution for
@@ -16,13 +15,14 @@
 #include <h/mhparse.h>
 #include <h/fmt_scan.h>
 #include <h/utils.h>
+#include "mhmisc.h"
+#include "mhshowsbr.h"
+#include "sbr/m_mktemp.h"
 #ifdef HAVE_ICONV
 #   include <iconv.h>
 #endif /* ! HAVE_ICONV */
 
 extern int debugsw;
-extern int npart;
-extern int ntype;
 
 int nolist   = 0;
 
@@ -32,20 +32,13 @@ char *progsw = NULL;
 int nomore   = 0;
 char *formsw = NULL;
 
-/* for output markerss and headers */
+/* for output markers and headers */
 char *folder = NULL;
 char *markerform;
 char *headerform;
 int headersw = -1;
 
 
-/* mhmisc.c */
-int part_ok (CT);
-int part_exact (CT);
-int type_ok (CT, int);
-void content_error (char *, CT, char *, ...);
-void flush_errors (void);
-
 /*
  * static prototypes
  */
@@ -97,7 +90,7 @@ static struct param_comp_list *dispo_pc_list = NULL;
  */
 
 void
-show_all_messages (CT *cts, int concatsw, int textonly, int inlineonly)
+show_all_messages(CT *cts, int concat, int textonly, int inlineonly)
 {
     CT ct, *ctp;
     struct format *hfmt, *mfmt;
@@ -128,7 +121,7 @@ show_all_messages (CT *cts, int concatsw, int textonly, int inlineonly)
        if (type_ok (ct, 1)) {
            if (headersw) output_header(ct, hfmt);
 
-           show_single_message (ct, formsw, concatsw, textonly, inlineonly,
+           show_single_message (ct, formsw, concat, textonly, inlineonly,
                                 mfmt);
        }
     }
@@ -200,7 +193,7 @@ static void
 DisplayMsgHeader (CT ct, char *form, int concatsw)
 {
     pid_t child_id;
-    int i, vecp;
+    int vecp;
     char **vec;
     char *file;
 
@@ -224,9 +217,7 @@ DisplayMsgHeader (CT ct, char *form, int concatsw)
 
     fflush (stdout);
 
-    for (i = 0; (child_id = fork()) == NOTOK && i < 5; i++)
-       sleep (5);
-
+    child_id = fork();
     switch (child_id) {
     case NOTOK:
        adios ("fork", "unable to");
@@ -343,7 +334,7 @@ show_content_aux (CT ct, int alternate, char *cp, char *cracked, struct format *
 {
     int fd;
     int xstdin = 0, xlist = 0;
-    char *file = NULL, buffer[BUFSIZ];
+    char *file = NULL, buffer[NMH_BUFSIZ];
 
     if (!ct->c_ceopenfnx) {
        if (!alternate)
@@ -371,7 +362,7 @@ show_content_aux (CT ct, int alternate, char *cp, char *cracked, struct format *
             char *charset = content_charset (ct);
             inform("unable to convert character set%s%s from %s, continuing...",
                       ct->c_partno  ?  " of part "  :  "",
-                      ct->c_partno  ?  ct->c_partno  :  "",
+                      FENDNULL(ct->c_partno),
                       charset);
             free (charset);
         }
@@ -403,7 +394,7 @@ show_content_aux2 (CT ct, int alternate, char *cracked, char *buffer,
                    int fd, int xlist, int xstdin, struct format *fmt)
 {
     pid_t child_id;
-    int i, vecp;
+    int vecp;
     char **vec, *file;
 
     if (debugsw || cracked) {
@@ -473,8 +464,7 @@ show_content_aux2 (CT ct, int alternate, char *cracked, char *buffer,
 
     fflush (stdout);
 
-    for (i = 0; (child_id = fork()) == NOTOK && i < 5; i++)
-       sleep (5);
+    child_id = fork();
     switch (child_id) {
        case NOTOK:
            advise ("fork", "unable to");
@@ -498,11 +488,15 @@ show_content_aux2 (CT ct, int alternate, char *cracked, char *buffer,
 
        default: {
            int status;
+            char *display_prog = vecp > 2  &&  vec[2][0] != '\0'
+                /* Copy the real display program name.  This relies on the
+                   specific construction of vec[] by argsplit(). */
+                ?  vec[2]
+                :  NULL;
 
-           arglist_free(file, vec);
-
-           pidcheck ((status = pidXwait (child_id, NULL)));
+            pidcheck ((status = pidXwait (child_id, display_prog)));
 
+            arglist_free(file, vec);
            if (fd != NOTOK)
                (*ct->c_ceclosefnx) (ct);
            return (alternate ? OK : status);
@@ -709,7 +703,7 @@ show_multi_aux (CT ct, int alternate, char *cp, struct format *fmt)
            if ((*p->c_ceopenfnx) (p, &file) == NOTOK)
                return NOTOK;
 
-           p->c_storage = add (file, NULL);
+           p->c_storage = mh_xstrdup(FENDNULL(file));
 
            if (p->c_showproc && !strcmp (p->c_showproc, "true"))
                return OK;
@@ -991,8 +985,8 @@ parse_display_string (CT ct, char *cp, int *xstdin, int *xlist,
                           quote. */
                        memmove (pp, pp-1, len+1);
                        *(pp++-1) = '\\';
-                       buflen -= 1;
-                       bp += 1;
+                       buflen--;
+                       bp++;
                    }
                }
                /* If pp is still set, that means we ran out of space. */
@@ -1177,11 +1171,10 @@ iconv_start:
                    inform("convert_charset: errno = %d", errno);
                     status = NOTOK;
                     break;
-                } else {
-                    if (write (fd, dest_buffer, outbytes_before - outbytes)
-                        < 0) {
-                        advise (dest, "write");
-                    }
+                }
+
+                if (write (fd, dest_buffer, outbytes_before - outbytes) < 0) {
+                    advise (dest, "write");
                 }
             }
 
@@ -1216,7 +1209,7 @@ iconv_start:
                replace_param(&ct->c_ctinfo.ci_first_pm,
                              &ct->c_ctinfo.ci_last_pm, "charset",
                              dest_charset, 0);
-               outline = output_params(strlen(TYPE_FIELD) + 1 + strlen(ctline),
+               outline = output_params(LEN(TYPE_FIELD) + 1 + strlen(ctline),
                                        ct->c_ctinfo.ci_first_pm, NULL, 0);
                if (outline) {
                    ctline = add(outline, ctline);