Imported Upstream version 4.0.4upstream/4.0.4

1 files changed, 47 insertions, 103 deletions

diff --git a/pdf.c b/pdf.c
index 53a02b0..968c885 100644
--- a/pdf.c
+++ b/pdf.c
@@ -1,3 +1,25 @@
+/* pdf.c
+ *
+ * Copyright (C) 2008 Till Kamppeter <till.kamppeter@gmail.com>
+ * Copyright (C) 2008 Lars Uebernickel <larsuebernickel@gmx.de>
+ *
+ * This file is part of foomatic-rip.
+ *
+ * Foomatic-rip is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * Foomatic-rip is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
 
 #include "foomaticrip.h"
 #include "util.h"
@@ -11,104 +33,36 @@
 #include <unistd.h>
 #include <errno.h>
 
-#include <ghostscript/iapi.h>
-#include <ghostscript/ierrors.h>
-
 #define ARRAY_LEN(a) (sizeof(a) / sizeof(a[0]))
 
 
-const char *pagecountcode = 
-    "/pdffile (%s) (r) file def\n"
-    "pdfdict begin\n"
-    "pdffile pdfopen begin\n"
-    "(PageCount: ) print\n"
-    "pdfpagecount == flush\n"   /* 'flush' makes sure that gs_stdout is called
-                                   before gsapi_run_string returns */
-    "currentdict pdfclose\n"
-    "end end\n";
-
-char gsout [256];
-
 static int wait_for_renderer();
 
 
-static const char * temp_dir()
-{
-    static const char *tmpdir = NULL;
-
-    if (!tmpdir)
-    {
-        const char *dirs[] = { getenv("TMPDIR"), P_tmpdir, "/tmp", NULL };
-        const char **dir;
-
-        for (dir = dirs; *dir; dir++)
-            if (access(*dir, W_OK) == 0) {
-                tmpdir = *dir;
-                break;
-            }
-        if (tmpdir)
-        {
-            _log("Storing temporary files in %s\n", tmpdir);
-            setenv("TMPDIR", tmpdir, 1); /* for child processes */
-        }
-        else
-            rip_die(EXIT_PRNERR_NORETRY_BAD_SETTINGS,
-                    "Cannot find a writable temp dir.");
-    }
-
-    return tmpdir;
-}
-
-int gs_stdout(void *instance, const char *str, int len)
-{
-    int last;
-    if (isempty(gsout)) {
-        last = len < 256 ? len : 255;
-        strncpy(gsout, str, last +1);
-        gsout[last] = '\0';
-    }
-    return len; /* ignore everything after the first few chars */
-}
-
-int gs_stderr(void *instance, const char *str, int len)
-{
-    char *buf = malloc(len +1);
-    strncpy(buf, str, len);
-    buf[len] = '\0';
-    _log("Ghostscript: %s", buf);
-    free(buf);
-    return len;
-}
-
 static int pdf_count_pages(const char *filename)
 {
-    void *minst;
-    int gsargc = 3;
-    char *gsargv[] = { "", "-dNODISPLAY", "-q" };
+    char gscommand[4095];
+    char output[31] = "";
     int pagecount;
-    int exit_code;
-    char code[2048];
 
-    if (gsapi_new_instance(&minst, NULL) < 0) {
-        _log("Could not create ghostscript instance\n");
-        return -1;
-    }
-    gsapi_set_stdio(minst, NULL, gs_stdout, gs_stderr);
-    if (gsapi_init_with_args(minst, gsargc, gsargv) < 0) {
-        _log("Could not init ghostscript\n");
-        gsapi_exit(minst);
-        gsapi_delete_instance(minst);
-        return -1;
-    }
+    snprintf(gscommand, 4095, "%s -dNODISPLAY -q -c "
+	     "'/pdffile (%s) (r) file def pdfdict begin pdffile pdfopen begin "
+	     "(PageCount: ) print pdfpagecount == flush currentdict pdfclose "
+	     "end end quit'",
+	     gspath, filename);
 
-    snprintf(code, 2048, pagecountcode, filename);
-    if (gsapi_run_string(minst, code, 0, &exit_code) == 0) {
-        if (sscanf(gsout, "PageCount: %d", &pagecount) < 1)
-            pagecount = -1;
+    FILE *pd = popen(gscommand, "r");
+    if (!pd) {
+      _log("Failed to execute ghostscript to determine number of input pages!\n");
+        return 0;
     }
 
-    gsapi_exit(minst);
-    gsapi_delete_instance(minst);
+    fread(output, 1, 31, pd);
+    pclose(pd);
+
+    if (sscanf(output, "PageCount: %d", &pagecount) < 1)
+      pagecount = -1;
+
     return pagecount;
 }
 
@@ -156,11 +110,8 @@ static int pdf_extract_pages(char filename[PATH_MAX],
                              int first,
                              int last)
 {
-    void *minst;
+    char gscommand[4095];
     char filename_arg[PATH_MAX], first_arg[50], last_arg[50];
-    const char *gs_args[] = { "", "-q", "-dNOPAUSE", "-dBATCH",
-        "-dPARANOIDSAFER", "-sDEVICE=pdfwrite", filename_arg, first_arg,
-        last_arg, pdffilename };
 
     _log("Extracting pages %d through %d\n", first, last);
 
@@ -169,12 +120,6 @@ static int pdf_extract_pages(char filename[PATH_MAX],
     if (!filename[0])
         return 0;
 
-    if (gsapi_new_instance(&minst, NULL) < 0)
-    {
-        _log("Could not create ghostscript instance\n");
-        return 0;
-    }
-
     snprintf(filename_arg, PATH_MAX, "-sOutputFile=%s", filename);
     snprintf(first_arg, 50, "-dFirstPage=%d", first);
     if (last > 0)
@@ -182,18 +127,17 @@ static int pdf_extract_pages(char filename[PATH_MAX],
     else
         first_arg[0] = '\0';
 
-    gsapi_set_stdio(minst, NULL, NULL, gs_stderr);
+    snprintf(gscommand, 4095, "%s -q -dNOPAUSE -dBATCH -dPARANOIDSAFER"
+	     "-sDEVICE=pdfwrite %s %s %s %s",
+	     gspath, filename_arg, first_arg, last_arg, pdffilename);
 
-    if (gsapi_init_with_args(minst, ARRAY_LEN(gs_args), (char **)gs_args) < 0)
-    {
-        _log("Could not run ghostscript to extract the pages\n");
-        gsapi_exit(minst);
-        gsapi_delete_instance(minst);
+    FILE *pd = popen(gscommand, "r");
+    if (!pd) {
+        _log("Could not run ghostscript to extract the pages!\n");
         return 0;
     }
+    pclose(pd);
 
-    gsapi_exit(minst);
-    gsapi_delete_instance(minst);
     return 1;
 }