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root/radiance/ray/src/util/getinfo.c
Revision: 2.18
Committed: Sat Jul 6 14:08:07 2019 UTC (3 years, 4 months ago) by greg
Content type: text/plain
Branch: MAIN
Changes since 2.17: +22 -6 lines
Log Message:
Made getinfo -d option useful for header-skip ('-') and command ('-c') options

File Contents

# Content
1 #ifndef lint
2 static const char RCSid[] = "$Id: getinfo.c,v 2.17 2019/06/09 18:22:44 greg Exp $";
3 #endif
4 /*
5 * getinfo.c - program to read info. header from file.
6 *
7 * 1/3/86
8 */
9
10 #include <stdio.h>
11 #include <string.h>
12
13 #include "platform.h"
14 #include "rtprocess.h"
15 #include "resolu.h"
16
17 #ifdef getc_unlocked /* avoid nasty file-locking overhead */
18 #undef getc
19 #undef getchar
20 #undef putchar
21 #define getc getc_unlocked
22 #define getchar getchar_unlocked
23 #define putchar putchar_unlocked
24 #endif
25
26 static gethfunc tabstr;
27 static void getdim(FILE *fp);
28 static void copycat(void);
29
30
31 static int
32 tabstr( /* put out line followed by tab */
33 char *s,
34 void *p
35 )
36 {
37 while (*s) {
38 putchar(*s);
39 s++;
40 }
41 if (*--s == '\n')
42 putchar('\t');
43 return(0);
44 }
45
46
47 int
48 main(
49 int argc,
50 char **argv
51 )
52 {
53 int dim = 0;
54 FILE *fp;
55 int i;
56
57 if (argc > 1 && !strcmp(argv[1], "-d")) {
58 argc--; argv++;
59 dim = 1;
60 }
61 #ifdef getc_unlocked /* avoid lock/unlock overhead */
62 flockfile(stdin);
63 #endif
64 SET_FILE_BINARY(stdin);
65 if (argc > 2 && !strcmp(argv[1], "-c")) {
66 SET_FILE_BINARY(stdout);
67 setvbuf(stdin, NULL, _IONBF, 2);
68 if (getheader(stdin, (gethfunc *)fputs, stdout) < 0)
69 return 1;
70 printargs(argc-2, argv+2, stdout);
71 fputc('\n', stdout);
72 if (dim) { /* copy resolution string? */
73 RESOLU rs;
74 if (!fgetsresolu(&rs, stdin)) {
75 fputs("No resolution string\n", stderr);
76 return 1;
77 }
78 fputsresolu(&rs, stdout);
79 }
80 fflush(stdout);
81 execvp(argv[2], argv+2);
82 perror(argv[2]);
83 return 1;
84 } else if (argc > 2 && !strcmp(argv[1], "-a")) {
85 SET_FILE_BINARY(stdout);
86 if (getheader(stdin, (gethfunc *)fputs, stdout) < 0)
87 return 1;
88 for (i = 2; i < argc; i++) {
89 int len = strlen(argv[i]);
90 if (!len) continue;
91 fputs(argv[i], stdout);
92 if (argv[i][len-1] != '\n')
93 fputc('\n', stdout);
94 }
95 fputc('\n', stdout);
96 copycat();
97 return 0;
98 } else if (argc == 2 && !strcmp(argv[1], "-")) {
99 SET_FILE_BINARY(stdout);
100 if (getheader(stdin, NULL, NULL) < 0)
101 return 1;
102 if (dim) { /* skip resolution string? */
103 RESOLU rs;
104 if (!fgetsresolu(&rs, stdin)) {
105 fputs("No resolution string\n", stderr);
106 return 1;
107 }
108 }
109 copycat();
110 return 0;
111 }
112 for (i = 1; i < argc; i++) {
113 fputs(argv[i], stdout);
114 if ((fp = fopen(argv[i], "r")) == NULL)
115 fputs(": cannot open\n", stdout);
116 else {
117 if (dim) {
118 fputs(": ", stdout);
119 getdim(fp);
120 } else {
121 tabstr(":\n", NULL);
122 getheader(fp, tabstr, NULL);
123 fputc('\n', stdout);
124 }
125 fclose(fp);
126 }
127 }
128 if (argc == 1) {
129 if (dim) {
130 getdim(stdin);
131 } else {
132 if (getheader(stdin, (gethfunc *)fputs, stdout) < 0)
133 return 1;
134 fputc('\n', stdout);
135 }
136 }
137 return 0;
138 }
139
140
141 static void
142 getdim( /* get dimensions from file */
143 FILE *fp
144 )
145 {
146 int j;
147 int c;
148 /* skip header */
149 if (getheader(fp, NULL, NULL) < 0) {
150 fputs("bad header\n", stdout);
151 return;
152 }
153 switch (c = getc(fp)) {
154 case '+': /* picture */
155 case '-':
156 do
157 putchar(c);
158 while (c != '\n' && (c = getc(fp)) != EOF);
159 break;
160 case 1: /* octree */
161 getc(fp);
162 j = 0;
163 while ((c = getc(fp)) != EOF)
164 if (c == 0) {
165 if (++j >= 4)
166 break;
167 putchar(' ');
168 } else {
169 putchar(c);
170 }
171 putchar('\n');
172 break;
173 default: /* ??? */
174 fputs("unknown file type\n", stdout);
175 break;
176 }
177 }
178
179
180 static void
181 copycat(void) /* copy input to output */
182 {
183 char buf[8192];
184 int n;
185
186 fflush(stdout);
187 while ((n = fread(buf, 1, sizeof(buf), stdin)) > 0)
188 if (writebuf(fileno(stdout), buf, n) != n)
189 break;
190 }