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-rw-r--r--source3/printing/pcap.c383
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diff --git a/source3/printing/pcap.c b/source3/printing/pcap.c
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+/*
+ Unix SMB/Netbios implementation.
+ Version 1.9.
+ printcap parsing
+ Copyright (C) Karl Auer 1993,1994
+
+ Re-working by Martin Kiff, 1994
+
+ Re-written again by Andrew Tridgell
+
+ This program 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.
+
+ This program 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 General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+/*
+ * Parse printcap file.
+ *
+ * This module does exactly one thing - it looks into the printcap file
+ * and tells callers if a specified string appears as a printer name.
+ *
+ * The way this module looks at the printcap file is very simplistic.
+ * Only the local printcap file is inspected (no searching of NIS
+ * databases etc).
+ *
+ * There are assumed to be one or more printer names per record, held
+ * as a set of sub-fields separated by vertical bar symbols ('|') in the
+ * first field of the record. The field separator is assumed to be a colon
+ * ':' and the record separator a newline.
+ *
+ * Lines ending with a backspace '\' are assumed to flag that the following
+ * line is a continuation line so that a set of lines can be read as one
+ * printcap entry.
+ *
+ * A line stating with a hash '#' is assumed to be a comment and is ignored
+ * Comments are discarded before the record is strung together from the
+ * set of continuation lines.
+ *
+ * Opening a pipe for "lpc status" and reading that would probably
+ * be pretty effective. Code to do this already exists in the freely
+ * distributable PCNFS server code.
+ */
+
+#include "includes.h"
+
+#include "smb.h"
+#include "loadparm.h"
+#include "pcap.h"
+
+extern int DEBUGLEVEL;
+
+#ifdef AIX
+/* ******************************************
+ Extend for AIX system and qconfig file
+ from 'boulard@univ-rennes1.fr
+ ****************************************** */
+static int strlocate(char *xpLine,char *xpS)
+{
+ int iS,iL,i,iRet;
+ char *p;
+ iS = strlen(xpS);
+ iL = strlen(xpLine);
+
+ iRet = 0;
+ p = xpLine;
+ while (iL >= iS)
+ {
+ if (strncmp(p,xpS,iS) == 0) {iRet =1;break;};
+ p++;
+ iL--;
+ }
+ /*DEBUG(3,(" strlocate %s in line '%s',ret=%d\n",xpS,xpLine,iRet));*/
+
+ return(iRet);
+}
+
+
+/* ******************************************************************* */
+/* * Scan qconfig and search all virtual printer (device printer) * */
+/* ******************************************************************* */
+static void ScanQconfig_fn(char *psz,void (*fn)())
+{
+ int iLg,iEtat;
+ FILE *pfile;
+ char *line,*p;
+ pstring name,comment;
+ line = NULL;
+ *name = 0;
+ *comment = 0;
+
+ if ((pfile = fopen(psz, "r")) == NULL)
+ {
+ DEBUG(0,( "Unable to open qconfig file %s for read!\n", psz));
+ return;
+ }
+
+ iEtat = 0;
+ /* scan qconfig file for searching <printername>: */
+ for (;(line = fgets_slash(NULL,sizeof(pstring),pfile)); free(line))
+ {
+ if (*line == '*' || *line == 0)
+ continue;
+ switch (iEtat)
+ {
+ case 0: /* locate an entry */
+ if (*line == '\t' || *line == ' ') continue;
+ if ((p=strchr(line,':')))
+ {
+ *p = '\0';
+ p = strtok(line,":");
+ if (strcmp(p,"bsh")!=0)
+ {
+ strcpy(name,p);
+ iEtat = 1;
+ continue;
+ }
+ }
+ break;
+ case 1: /* scanning device stanza */
+ if (*line == '*' || *line == 0) continue;
+ if (*line != '\t' && *line != ' ')
+ {
+ /* name is found without stanza device */
+ /* probably a good printer ??? */
+ fn(name,comment);
+ iEtat = 0;
+ continue;
+ }
+
+ if (strlocate(line,"backend"))
+ {
+ /* it's a device, not a virtual printer*/
+ iEtat = 0;
+ }
+ else if (strlocate(line,"device"))
+ {
+ /* it's a good virtual printer */
+ fn(name,comment);
+ iEtat = 0;
+ continue;
+ }
+ break;
+ }
+ }
+ fclose(pfile);
+}
+
+/* Scan qconfig file and locate de printername */
+
+static BOOL ScanQconfig(char *psz,char *pszPrintername)
+{
+ int iLg,iEtat;
+ FILE *pfile;
+ char *pName;
+ char *line;
+
+ pName = NULL;
+ line = NULL;
+ if ((pszPrintername!= NULL) && ((iLg = strlen(pszPrintername)) > 0))
+ pName = malloc(iLg+10);
+ if (pName == NULL)
+ {
+ DEBUG(0,(" Unable to allocate memory for printer %s\n",pszPrintername));
+ return(False);
+ }
+ if ((pfile = fopen(psz, "r")) == NULL)
+ {
+ DEBUG(0,( "Unable to open qconfig file %s for read!\n", psz));
+ free(pName);
+ return(False);
+ }
+ sprintf(pName,"%s:",pszPrintername);
+ iLg = strlen(pName);
+ /*DEBUG(3,( " Looking for entry %s\n",pName));*/
+ iEtat = 0;
+ /* scan qconfig file for searching <printername>: */
+ for (;(line = fgets_slash(NULL,sizeof(pstring),pfile)); free(line))
+ {
+ if (*line == '*' || *line == 0)
+ continue;
+ switch (iEtat)
+ {
+ case 0: /* scanning entry */
+ if (strncmp(line,pName,iLg) == 0)
+ {
+ iEtat = 1;
+ continue;
+ }
+ break;
+ case 1: /* scanning device stanza */
+ if (*line == '*' || *line == 0) continue;
+ if (*line != '\t' && *line != ' ')
+ {
+ /* name is found without stanza device */
+ /* probably a good printer ??? */
+ free (line);
+ free(pName);
+ fclose(pfile);
+ return(True);
+ }
+
+ if (strlocate(line,"backend"))
+ {
+ /* it's a device, not a virtual printer*/
+ iEtat = 0;
+ }
+ else if (strlocate(line,"device"))
+ {
+ /* it's a good virtual printer */
+ free (line);
+ free(pName);
+ fclose(pfile);
+ return(True);
+ }
+ break;
+ }
+ }
+ free (pName);
+ fclose(pfile);
+ return(False);
+}
+
+#endif
+/***************************************************************************
+Scan printcap file pszPrintcapname for a printer called pszPrintername.
+Return True if found, else False. Returns False on error, too, after logging
+the error at level 0. For generality, the printcap name may be passed - if
+passed as NULL, the configuration will be queried for the name.
+***************************************************************************/
+BOOL pcap_printername_ok(char *pszPrintername, char *pszPrintcapname)
+{
+ char *line=NULL;
+ char *psz;
+ char *p,*q;
+ FILE *pfile;
+
+ if (pszPrintername == NULL || pszPrintername[0] == '\0')
+ {
+ DEBUG(0,( "Attempt to locate null printername! Internal error?\n"));
+ return(False);
+ }
+
+ /* only go looking if no printcap name supplied */
+ if ((psz = pszPrintcapname) == NULL || psz[0] == '\0')
+ if (((psz = lp_printcapname()) == NULL) || (psz[0] == '\0'))
+ {
+ DEBUG(0,( "No printcap file name configured!\n"));
+ return(False);
+ }
+#ifdef AIX
+ if (strlocate(psz,"/qconfig") != NULL)
+ return(ScanQconfig(psz,pszPrintername));
+#endif
+ if ((pfile = fopen(psz, "r")) == NULL)
+ {
+ DEBUG(0,( "Unable to open printcap file %s for read!\n", psz));
+ return(False);
+ }
+
+ for (;(line = fgets_slash(NULL,sizeof(pstring),pfile)); free(line))
+ {
+ if (*line == '#' || *line == 0)
+ continue;
+
+ /* now we have a real printer line - cut it off at the first : */
+ p = strchr(line,':');
+ if (p) *p = 0;
+
+ /* now just check if the name is in the list */
+ /* NOTE: I avoid strtok as the fn calling this one may be using it */
+ for (p=line; p; p=q)
+ {
+ if ((q = strchr(p,'|'))) *q++ = 0;
+
+ if (strequal(p,pszPrintername))
+ {
+ /* normalise the case */
+ strcpy(pszPrintername,p);
+ free(line);
+ fclose(pfile);
+ return(True);
+ }
+ p = q;
+ }
+ }
+
+
+ fclose(pfile);
+ return(False);
+}
+
+
+/***************************************************************************
+run a function on each printer name in the printcap file. The function is
+passed the primary name and the comment (if possible)
+***************************************************************************/
+void pcap_printer_fn(void (*fn)())
+{
+ pstring name,comment;
+ char *line;
+ char *psz;
+ char *p,*q;
+ FILE *pfile;
+
+ /* only go looking if no printcap name supplied */
+ if (((psz = lp_printcapname()) == NULL) || (psz[0] == '\0'))
+ {
+ DEBUG(0,( "No printcap file name configured!\n"));
+ return;
+ }
+
+#ifdef AIX
+ if (strlocate(psz,"/qconfig") != NULL)
+ {
+ ScanQconfig_fn(psz,fn);
+ return;
+ }
+#endif
+ if ((pfile = fopen(psz, "r")) == NULL)
+ {
+ DEBUG(0,( "Unable to open printcap file %s for read!\n", psz));
+ return;
+ }
+
+ for (;(line = fgets_slash(NULL,sizeof(pstring),pfile)); free(line))
+ {
+ if (*line == '#' || *line == 0)
+ continue;
+
+ /* now we have a real printer line - cut it off at the first : */
+ p = strchr(line,':');
+ if (p) *p = 0;
+
+ /* now find the most likely printer name and comment
+ this is pure guesswork, but it's better than nothing */
+ *name = 0;
+ *comment = 0;
+ for (p=line; p; p=q)
+ {
+ BOOL has_punctuation;
+ if ((q = strchr(p,'|'))) *q++ = 0;
+
+ has_punctuation = (strchr(p,' ') || strchr(p,'(') || strchr(p,')'));
+
+ if (strlen(p)>strlen(comment) && has_punctuation)
+ {
+ StrnCpy(comment,p,sizeof(comment)-1);
+ continue;
+ }
+
+ if (strlen(p) <= 8 && strlen(p)>strlen(name) && !has_punctuation)
+ {
+ if (!*comment) strcpy(comment,name);
+ strcpy(name,p);
+ continue;
+ }
+
+ if (!strchr(comment,' ') &&
+ strlen(p) > strlen(comment))
+ {
+ StrnCpy(comment,p,sizeof(comment)-1);
+ continue;
+ }
+ }
+
+ comment[60] = 0;
+ name[8] = 0;
+
+ if (*name)
+ fn(name,comment);
+ }
+ fclose(pfile);
+}
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