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Diffstat (limited to 'Build/source/utils/psutils/psutil.c')
-rw-r--r--Build/source/utils/psutils/psutil.c344
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diff --git a/Build/source/utils/psutils/psutil.c b/Build/source/utils/psutils/psutil.c
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+/* psutil.c
+ * Copyright (C) Angus J. C. Duggan 1991-1995
+ * See file LICENSE for details.
+ *
+ * utilities for PS programs
+ */
+
+/*
+ * AJCD 6/4/93
+ * Changed to using ftell() and fseek() only (no length calculations)
+ * Hunter Goatley 31-MAY-1993 23:33
+ * Fixed VMS support.
+ * Hunter Goatley 2-MAR-1993 14:41
+ * Added VMS support.
+ */
+#include "psutil.h"
+#include "pserror.h"
+#include "patchlev.h"
+
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#define iscomment(x,y) (strncmp(x,y,strlen(y)) == 0)
+
+extern char *program ;
+extern int pages;
+extern int verbose;
+extern FILE *infile;
+extern FILE *outfile;
+extern char pagelabel[BUFSIZ];
+extern int pageno;
+
+static char buffer[BUFSIZ];
+static long bytes = 0;
+static long pagescmt = 0;
+static long headerpos = 0;
+static long endsetup = 0;
+static long beginprocset = 0; /* start of pstops procset */
+static long endprocset = 0;
+static int outputpage = 0;
+static int maxpages = 100;
+static long *pageptr;
+
+/* list of paper sizes supported */
+static Paper papersizes[] = {
+ { "a3", 842, 1191 }, /* 29.7cm * 42cm */
+ { "a4", 595, 842 }, /* 21cm * 29.7cm */
+ { "a5", 421, 595 }, /* 14.85cm * 21cm */
+ { "b5", 516, 729 }, /* 18.2cm * 25.72cm */
+ { "A3", 842, 1191 }, /* 29.7cm * 42cm */
+ { "A4", 595, 842 }, /* 21cm * 29.7cm */
+ { "A5", 421, 595 }, /* 14.85cm * 21cm */
+ { "B5", 516, 729 }, /* 18.2cm * 25.72cm */
+ { "letter", 612, 792 }, /* 8.5in * 11in */
+ { "legal", 612, 1008 }, /* 8.5in * 14in */
+ { "ledger", 1224, 792 }, /* 17in * 11in */
+ { "tabloid", 792, 1224 }, /* 11in * 17in */
+ { "statement", 396, 612 }, /* 5.5in * 8.5in */
+ { "executive", 540, 720 }, /* 7.6in * 10in */
+ { "folio", 612, 936 }, /* 8.5in * 13in */
+ { "quarto", 610, 780 }, /* 8.5in * 10.83in */
+ { "10x14", 720, 1008 }, /* 10in * 14in */
+ { NULL, 0, 0 }
+};
+
+/* return pointer to paper size struct or NULL */
+Paper* findpaper(char *name)
+{
+ Paper *pp;
+ for (pp = papersizes; PaperName(pp); pp++) {
+ if (strcmp(PaperName(pp), name) == 0) {
+ return pp;
+ }
+ }
+ return (Paper *)NULL;
+}
+
+/* Make a file seekable, using temporary files if necessary */
+FILE *seekable(FILE *fp)
+{
+#ifndef MSDOS
+ FILE *ft;
+ long r, w ;
+#endif
+ char *p;
+ char buffer[BUFSIZ] ;
+#if defined(WINNT) || defined(WIN32)
+ struct _stat fs ;
+#else
+ long fpos;
+#endif
+
+#if defined(WINNT) || defined(WIN32)
+ if (_fstat(fileno(fp), &fs) == 0 && (fs.st_mode&_S_IFREG) != 0)
+ return (fp);
+#else
+ if ((fpos = ftell(fp)) >= 0)
+ if (!fseek(fp, 0L, SEEK_END) && !fseek(fp, fpos, SEEK_SET))
+ return (fp);
+#endif
+
+#if defined(MSDOS)
+ message(FATAL, "input is not seekable\n");
+ return (NULL) ;
+#else
+ if ((ft = tmpfile()) == NULL)
+ return (NULL);
+
+ while ((r = fread(p = buffer, sizeof(char), BUFSIZ, fp)) > 0) {
+ do {
+ if ((w = fwrite(p, sizeof(char), r, ft)) == 0)
+ return (NULL) ;
+ p += w ;
+ r -= w ;
+ } while (r > 0) ;
+ }
+
+ if (!feof(fp))
+ return (NULL) ;
+
+ /* discard the input file, and rewind the temporary */
+ (void) fclose(fp);
+ if (fseek(ft, 0L, SEEK_SET) != 0)
+ return (NULL) ;
+
+ return (ft);
+#endif
+}
+
+
+/* copy input file from current position upto new position to output file */
+static int fcopy(long upto)
+{
+ long here = ftell(infile);
+ while (here < upto) {
+ if ((fgets(buffer, BUFSIZ, infile) == NULL) ||
+ (fputs(buffer, outfile) == EOF))
+ return(0);
+ here = ftell(infile);
+ bytes += strlen(buffer);
+ }
+ return (1);
+}
+
+/* build array of pointers to start/end of pages */
+void scanpages(void)
+{
+ register char *comment = buffer+2;
+ register int nesting = 0;
+ register long int record;
+
+ if ((pageptr = (long *)malloc(sizeof(long)*maxpages)) == NULL)
+ message(FATAL, "out of memory\n");
+ pages = 0;
+ fseek(infile, 0L, SEEK_SET);
+ while (record = ftell(infile), fgets(buffer, BUFSIZ, infile) != NULL)
+ if (*buffer == '%') {
+ if (buffer[1] == '%') {
+ if (nesting == 0 && iscomment(comment, "Page:")) {
+ if (pages >= maxpages-1) {
+ maxpages *= 2;
+ if ((pageptr = (long *)realloc((char *)pageptr,
+ sizeof(long)*maxpages)) == NULL)
+ message(FATAL, "out of memory\n");
+ }
+ pageptr[pages++] = record;
+ } else if (headerpos == 0 && iscomment(comment, "Pages:"))
+ pagescmt = record;
+ else if (headerpos == 0 && iscomment(comment, "EndComments"))
+ headerpos = ftell(infile);
+ else if (iscomment(comment, "BeginDocument") ||
+ iscomment(comment, "BeginBinary") ||
+ iscomment(comment, "BeginFile"))
+ nesting++;
+ else if (iscomment(comment, "EndDocument") ||
+ iscomment(comment, "EndBinary") ||
+ iscomment(comment, "EndFile"))
+ nesting--;
+ else if (nesting == 0 && iscomment(comment, "EndSetup"))
+ endsetup = record;
+ else if (nesting == 0 && iscomment(comment, "BeginProlog"))
+ headerpos = ftell(infile);
+ else if (nesting == 0 &&
+ iscomment(comment, "BeginProcSet: PStoPS"))
+ beginprocset = record;
+ else if (beginprocset && !endprocset &&
+ iscomment(comment, "EndProcSet"))
+ endprocset = ftell(infile);
+ else if (nesting == 0 && (iscomment(comment, "Trailer") ||
+ iscomment(comment, "EOF"))) {
+ fseek(infile, record, SEEK_SET);
+ break;
+ }
+ } else if (headerpos == 0 && buffer[1] != '!')
+ headerpos = record;
+ } else if (headerpos == 0)
+ headerpos = record;
+ pageptr[pages] = ftell(infile);
+ if (endsetup == 0 || endsetup > pageptr[0])
+ endsetup = pageptr[0];
+}
+
+/* seek a particular page */
+void seekpage(int p)
+{
+ fseek(infile, pageptr[p], SEEK_SET);
+ if (fgets(buffer, BUFSIZ, infile) != NULL &&
+ iscomment(buffer, "%%Page:")) {
+ char *start, *end;
+ for (start = buffer+7; isspace(*start); start++);
+ if (*start == '(') {
+ int paren = 1;
+ for (end = start+1; paren > 0; end++)
+ switch (*end) {
+ case '\0':
+ message(FATAL, "Bad page label while seeking page %d\n", p);
+ case '(':
+ paren++;
+ break;
+ case ')':
+ paren--;
+ break;
+ }
+ } else
+ for (end = start; !isspace(*end); end++);
+ strncpy(pagelabel, start, end-start);
+ pagelabel[end-start] = '\0';
+ pageno = atoi(end);
+ } else
+ message(FATAL, "I/O error seeking page %d\n", p);
+}
+
+/* Output routines. These all update the global variable bytes with the number
+ * of bytes written */
+void writestring(char *s)
+{
+ fputs(s, outfile);
+ bytes += strlen(s);
+}
+
+/* write page comment */
+void writepageheader(char *label, int page)
+{
+ if (verbose)
+ message(LOG, "[%d] ", page);
+ sprintf(buffer, "%%%%Page: %s %d\n", label, ++outputpage);
+ writestring(buffer);
+}
+
+/* search for page setup */
+void writepagesetup(void)
+{
+ char buffer[BUFSIZ];
+ if (beginprocset) {
+ for (;;) {
+ if (fgets(buffer, BUFSIZ, infile) == NULL)
+ message(FATAL, "I/O error reading page setup %d\n", outputpage);
+ if (!strncmp(buffer, "PStoPSxform", 11))
+ break;
+ if (fputs(buffer, outfile) == EOF)
+ message(FATAL, "I/O error writing page setup %d\n", outputpage);
+ bytes += strlen(buffer);
+ }
+ }
+}
+
+/* write the body of a page */
+void writepagebody(int p)
+{
+ if (!fcopy(pageptr[p+1]))
+ message(FATAL, "I/O error writing page %d\n", outputpage);
+}
+
+/* write a whole page */
+void writepage(int p)
+{
+ seekpage(p);
+ writepageheader(pagelabel, p+1);
+ writepagebody(p);
+}
+
+/* write from start of file to end of header comments */
+void writeheader(int p)
+{
+ fseek(infile, 0L, SEEK_SET);
+ if (pagescmt) {
+ if (!fcopy(pagescmt) || fgets(buffer, BUFSIZ, infile) == NULL)
+ message(FATAL, "I/O error in header\n");
+ sprintf(buffer, "%%%%Pages: %d 0\n", p);
+ writestring(buffer);
+ }
+ if (!fcopy(headerpos))
+ message(FATAL, "I/O error in header\n");
+}
+
+/* write prologue to end of setup section excluding PStoPS procset */
+int writepartprolog(void)
+{
+ if (beginprocset && !fcopy(beginprocset))
+ message(FATAL, "I/O error in prologue\n");
+ if (endprocset)
+ fseek(infile, endprocset, SEEK_SET);
+ writeprolog();
+ return !beginprocset;
+}
+
+/* write prologue up to end of setup section */
+void writeprolog(void)
+{
+ if (!fcopy(endsetup))
+ message(FATAL, "I/O error in prologue\n");
+}
+
+/* write from end of setup to start of pages */
+void writesetup(void)
+{
+ if (!fcopy(pageptr[0]))
+ message(FATAL, "I/O error in prologue\n");
+}
+
+/* write trailer */
+void writetrailer(void)
+{
+ fseek(infile, pageptr[pages], SEEK_SET);
+ while (fgets(buffer, BUFSIZ, infile) != NULL) {
+ writestring(buffer);
+ }
+ if (verbose)
+ message(LOG, "Wrote %d pages, %ld bytes\n", outputpage, bytes);
+}
+
+/* write a page with nothing on it */
+void writeemptypage(void)
+{
+ if (verbose)
+ message(LOG, "[*] ");
+ sprintf(buffer, "%%%%Page: * %d\n", ++outputpage);
+ writestring(buffer);
+ if (beginprocset)
+ writestring("PStoPSxform concat\n");
+ writestring("showpage\n");
+}
+
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