Move FILE * operations behind new gp_file * API.

(squash of commits from filesec branch)

Most of this commit is donkeywork conversions of calls from
FILE * -> gp_file *, fwrite -> gp_fwrite etc. Pretty much every
device is touched, along with the clist and parsing code.

The more interesting changes are within gp.h (where the actual
new API is defined), gpmisc.c (where the basic implementations
live), and the platform specific levels (gp_mswin.c, gp_unifs.c
etc where the platform specific implementations have been
tweaked/renamed).

File opening path validation

All file opening routines now call a central routine for
path validation.

This then consults new entries in gs_lib_ctx to see if validation
is enabled or not. If so, it validates the paths by seeing if
they match.

Simple C level functions for adding/removing/clearing paths, exposed
through the gsapi level.

Add 2 postscript operators for path control.

  <name> <string> .addcontrolpath -

    Add the given <string> (path) to the list of paths for
    controlset <name>, where <name> can be:
      /PermitFileReading
      /PermitFileWriting
      /PermitFileControl
      (Anything else -> rangecheck)

  - .activatepathcontrol -

    Enable path control. At this point PS cannot make any
    more changes, and all file access is checked.

1 files changed, 20 insertions, 20 deletions

diff --git a/devices/gdevstc.c b/devices/gdevstc.c
index 9c95ac4aa..9040f062a 100644
--- a/devices/gdevstc.c
+++ b/devices/gdevstc.c
@@ -210,9 +210,9 @@ static stc_proc_iconvert(stc_cmyk10_dlong); /* CMYK10 direct longs */
 /***
  *** Print-functions
  ***/
-static void stc_print_weave(stcolor_device *sd,FILE *prn_stream);
-static void stc_print_bands(stcolor_device *sd,FILE *prn_stream);
-static void stc_print_delta(stcolor_device *sd,FILE *prn_stream);
+static void stc_print_weave(stcolor_device *sd, gp_file *prn_stream);
+static void stc_print_bands(stcolor_device *sd, gp_file *prn_stream);
+static void stc_print_delta(stcolor_device *sd, gp_file *prn_stream);
 static int  stc_print_setup(stcolor_device *sd);
 
 /***
@@ -345,7 +345,7 @@ stc_print_setup(stcolor_device *sd)
  ***/
 
 static int
-stc_print_page(gx_device_printer * pdev, FILE * prn_stream)
+stc_print_page(gx_device_printer * pdev, gp_file *prn_stream)
 {
    stcolor_device *sd    = (stcolor_device *) pdev;
    long            flags = sd == NULL ? 0 : sd->stc.flags;
@@ -732,9 +732,9 @@ stc_print_page(gx_device_printer * pdev, FILE * prn_stream)
          }                           /* Until all scans are processed */
 
          if(sd->stc.flags & STCPRINT) {
-            if((flags & STCCOMP) == STCDELTA) fputc(0xe3,prn_stream);
-            fwrite(sd->stc.escp_release.data,1,sd->stc.escp_release.size,prn_stream);
-            fflush(prn_stream);
+            if((flags & STCCOMP) == STCDELTA) gp_fputc(0xe3,prn_stream);
+            gp_fwrite(sd->stc.escp_release.data,1,sd->stc.escp_release.size,prn_stream);
+            gp_fflush(prn_stream);
          }
 #ifdef    STC_SIGNAL
          sigprocmask(SIG_SETMASK,&stc_int_save,NULL);
@@ -1109,7 +1109,7 @@ stc_rle(byte *out,const byte *in,int width)
  * Horizontal & vertical positioning, color-selection, "ESC ."
  */
 static int
-stc_print_escpcmd(stcolor_device *sd, FILE *prn_stream,
+stc_print_escpcmd(stcolor_device *sd, gp_file *prn_stream,
    int escp_used, int color,int m,int wbytes)
 {
 
@@ -1124,12 +1124,12 @@ stc_print_escpcmd(stcolor_device *sd, FILE *prn_stream,
  */
    if(0 == (sd->stc.flags & STCPRINT)) {
 
-      fwrite(sd->stc.escp_init.data,1,sd->stc.escp_init.size,prn_stream);
+      gp_fwrite(sd->stc.escp_init.data,1,sd->stc.escp_init.size,prn_stream);
 
       if(0 < sd->stc.escp_lf) { /* Adjust Linefeed */
-         fputc('\033',        prn_stream);
-         fputc('+',           prn_stream);
-         fputc(((sd->stc.escp_m*sd->stc.escp_u) / 10),prn_stream);
+         gp_fputc('\033',        prn_stream);
+         gp_fputc('+',           prn_stream);
+         gp_fputc(((sd->stc.escp_m*sd->stc.escp_u) / 10),prn_stream);
       }                         /* Adjust Linefeed */
       sd->stc.flags |= STCPRINT;
    }
@@ -1202,7 +1202,7 @@ stc_bandwidth(stcolor_device *sd,int color,int m,int npass)
  * Multi-Pass Printing-Routine
  */
 static void
-stc_print_weave(stcolor_device *sd, FILE *prn_stream)
+stc_print_weave(stcolor_device *sd, gp_file *prn_stream)
 {
 
    int escp_used,nprint,nspace,color,buf_a,iprint,w;
@@ -1247,7 +1247,7 @@ stc_print_weave(stcolor_device *sd, FILE *prn_stream)
                                     sd->stc.prt_data[buf_a],w);
             }
 
-            fwrite(sd->stc.escp_data,1,escp_used,prn_stream);
+            gp_fwrite(sd->stc.escp_data,1,escp_used,prn_stream);
             escp_used = 0;
 
             buf_a = (sd->stc.prt_buf-1) & (buf_a + ncolor * npass);
@@ -1263,7 +1263,7 @@ stc_print_weave(stcolor_device *sd, FILE *prn_stream)
                escp_used += stc_rle(sd->stc.escp_data+escp_used,NULL,w);
             }
 
-            fwrite(sd->stc.escp_data,1,escp_used,prn_stream);
+            gp_fwrite(sd->stc.escp_data,1,escp_used,prn_stream);
             escp_used = 0;
          }                               /* add empty rows */
       }                                             /* print the colors */
@@ -1276,7 +1276,7 @@ stc_print_weave(stcolor_device *sd, FILE *prn_stream)
  * Single-Pass printing-Routine
  */
 static void
-stc_print_bands(stcolor_device *sd, FILE *prn_stream)
+stc_print_bands(stcolor_device *sd, gp_file *prn_stream)
 {
 
    int escp_used,color,buf_a,iprint,w,m;
@@ -1328,7 +1328,7 @@ stc_print_bands(stcolor_device *sd, FILE *prn_stream)
                                     sd->stc.prt_data[buf_a],w);
             }
 
-            fwrite(sd->stc.escp_data,1,escp_used,prn_stream);
+            gp_fwrite(sd->stc.escp_data,1,escp_used,prn_stream);
             escp_used = 0;
 
             buf_a = (sd->stc.prt_buf-1) & (buf_a + ncolor);
@@ -1425,7 +1425,7 @@ stc_deltarow(byte *out,const byte *in,int width,byte *seed)
  * Slightly different single-pass printing
  */
 static void
-stc_print_delta(stcolor_device *sd, FILE *prn_stream)
+stc_print_delta(stcolor_device *sd, gp_file *prn_stream)
 {
 
    int color,buf_a,w;
@@ -1456,7 +1456,7 @@ stc_print_delta(stcolor_device *sd, FILE *prn_stream)
 
          sd->stc.flags |= STCPRINT;
 
-         fwrite(sd->stc.escp_init.data,1,sd->stc.escp_init.size,prn_stream);
+         gp_fwrite(sd->stc.escp_init.data,1,sd->stc.escp_init.size,prn_stream);
 
          sd->stc.escp_data[escp_used++] = '\033';
          sd->stc.escp_data[escp_used++] = '.';
@@ -1507,7 +1507,7 @@ stc_print_delta(stcolor_device *sd, FILE *prn_stream)
          if(w == 0) escp_used -= 1;
          else       escp_used += w;
 
-         if(escp_used > 0) fwrite(sd->stc.escp_data,1,escp_used,prn_stream);
+         if(escp_used > 0) gp_fwrite(sd->stc.escp_data,1,escp_used,prn_stream);
          escp_used = 0;
 
       }                                             /* print the colors */