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root/radiance/ray/src/common/popen.c
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Comparing ray/src/common/popen.c (file contents):
Revision 2.1 by greg, Tue Sep 8 09:08:02 1992 UTC vs.
Revision 2.5 by greg, Sat Feb 22 02:07:22 2003 UTC

# Line 1 | Line 1
1 – /* Copyright (c) 1992 Regents of the University of California */
2 –
1   #ifndef lint
2 < static char SCCSid[] = "$SunId$ LBL";
2 > static const char       RCSid[] = "$Id$";
3   #endif
6 –
4   /*
5   * popen() and pclose() calls for systems without pipe facilities
6   */
7  
8 + /* ====================================================================
9 + * The Radiance Software License, Version 1.0
10 + *
11 + * Copyright (c) 1990 - 2002 The Regents of the University of California,
12 + * through Lawrence Berkeley National Laboratory.   All rights reserved.
13 + *
14 + * Redistribution and use in source and binary forms, with or without
15 + * modification, are permitted provided that the following conditions
16 + * are met:
17 + *
18 + * 1. Redistributions of source code must retain the above copyright
19 + *         notice, this list of conditions and the following disclaimer.
20 + *
21 + * 2. Redistributions in binary form must reproduce the above copyright
22 + *       notice, this list of conditions and the following disclaimer in
23 + *       the documentation and/or other materials provided with the
24 + *       distribution.
25 + *
26 + * 3. The end-user documentation included with the redistribution,
27 + *           if any, must include the following acknowledgment:
28 + *             "This product includes Radiance software
29 + *                 (http://radsite.lbl.gov/)
30 + *                 developed by the Lawrence Berkeley National Laboratory
31 + *               (http://www.lbl.gov/)."
32 + *       Alternately, this acknowledgment may appear in the software itself,
33 + *       if and wherever such third-party acknowledgments normally appear.
34 + *
35 + * 4. The names "Radiance," "Lawrence Berkeley National Laboratory"
36 + *       and "The Regents of the University of California" must
37 + *       not be used to endorse or promote products derived from this
38 + *       software without prior written permission. For written
39 + *       permission, please contact [email protected].
40 + *
41 + * 5. Products derived from this software may not be called "Radiance",
42 + *       nor may "Radiance" appear in their name, without prior written
43 + *       permission of Lawrence Berkeley National Laboratory.
44 + *
45 + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
46 + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
47 + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
48 + * DISCLAIMED.   IN NO EVENT SHALL Lawrence Berkeley National Laboratory OR
49 + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
50 + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
51 + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
52 + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
53 + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
54 + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
55 + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
56 + * SUCH DAMAGE.
57 + * ====================================================================
58 + *
59 + * This software consists of voluntary contributions made by many
60 + * individuals on behalf of Lawrence Berkeley National Laboratory.   For more
61 + * information on Lawrence Berkeley National Laboratory, please see
62 + * <http://www.lbl.gov/>.
63 + */
64 +
65   #include <stdio.h>
66 + #include <stdlib.h>
67 + #include <string.h>
68   #include <ctype.h>
69   #include "paths.h"
70  
# Line 27 | Line 83 | popen(cmd, mode)               /* open command for reading or writi
83   register char   *cmd;
84   char    *mode;
85   {
30 –        extern FILE     *fopen();
31 –        extern char     *malloc(), *mktemp(), *strcpy();
32 –        static int      fnum = 0;
86          FILE    *fp;
87          char    *newcmd, *fname;
88          register char   *cp, *cp2 = NULL;
89          int     quote = '\0', paren = 0;
90          
91 <        fname = malloc(TEMPLEN+1);
92 <        newcmd = malloc(TEMPLEN+6+strlen(cmd));
91 >        while (isspace(*cmd))
92 >                cmd++;
93 >        if (!*cmd)
94 >                return(NULL);
95 >        fname = (char *)malloc(TEMPLEN+1);
96 >        newcmd = (char *)malloc(TEMPLEN+6+strlen(cmd));
97          if (fname == NULL | newcmd == NULL)
98                  return(NULL);
99          mktemp(strcpy(fname,TEMPLATE));
100                                  /* build our command */
101          for (cp = newcmd; ; cmd++) {
102                  switch (*cmd) {
46 –                case '"':
103                  case '\'':
104 +                case '"':
105                          if (!quote)
106                                  quote = *cmd;
107                          else if (quote == *cmd)
108                                  quote = '\0';
109 + #ifdef MSDOS
110 +                        else
111 +                                break;
112 +                        *cp++ = '"';            /* double quotes only */
113 +                        continue;
114 +                case '\\':
115 +                        if (!quote && cmd[1] == '\n') {
116 +                                *cp++ = ' ';
117 +                                cmd++;
118 +                                continue;
119 +                        }
120 +                        cmd++;
121                          break;
122 + #else
123 +                        break;
124 +                case '\\':
125 +                        *cp++ = *cmd++;
126 +                        break;
127                  case '(':
128                          if (!quote)
129                                  paren++;
# Line 58 | Line 132 | char   *mode;
132                          if (!quote && paren)
133                                  paren--;
134                          break;
61 –                case '\\':
62 –                        if (!quote && cmd[1] == '\n') {
63 –                                *cp++ = ' ';
64 –                                cmd++;
65 –                                continue;
66 –                        }
67 –                        *cp++ = *cmd++;
68 –                        break;
69 –                case '|':
135                  case ';':
136 + #endif
137 +                case '|':
138                          if (!quote && !paren && cp2 == NULL)
139                                  cp2 = fname;
140                          break;
141 +                case ' ':
142 +                case '\t':
143 +                        if (!quote)
144 +                                while (isspace(cmd[1]))
145 +                                        cmd++;
146 +                        break;
147                  case '\n':
148                  case '\0':
149                          if (cp2 == NULL)
# Line 78 | Line 151 | char   *mode;
151                          break;
152                  }
153                  if (cp2 == fname && *mode == 'w') {     /* add input file */
154 <                        *cp++ = ' '; *cp++ = '<'; *cp++ = ' ';
154 >                        *cp++ = ' '; *cp++ = '<';
155                          while (*cp2)
156                                  *cp++ = *cp2++;
157                          *cp++ = ' ';
# Line 90 | Line 163 | char   *mode;
163          if (*mode == 'r') {                     /* add output file */
164                  while (isspace(cp[-1]) || cp[-1] == ';')
165                          cp--;
166 <                *cp++ = ' '; *cp++ = '>'; *cp++ = ' ';
166 >                *cp++ = ' '; *cp++ = '>';
167                  while (*cp2)
168                          *cp++ = *cp2++;
169                  *cp = '\0';
# Line 102 | Line 175 | char   *mode;
175                  return(NULL);
176          }
177          if (fileno(fp) >= NFILE) {
178 <                fputs("popen: too many open files\n", stderr);
179 <                exit(1);
178 >                eputs("popen: too many open files\n");
179 >                quit(1);
180          }
181          pips[fileno(fp)].f = fname;
182          if (*mode == 'r') {

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