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/* Copyright (c) 1996 Regents of the University of California */ |
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|
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#ifndef lint |
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< |
static char SCCSid[] = "$SunId$ LBL"; |
2 |
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static const char RCSid[] = "$Id$"; |
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#endif |
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|
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/* |
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* header.c - routines for reading and writing information headers. |
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* |
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* 8/19/88 |
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* Externals declared in rtio.h |
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* |
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* newheader(t,fp) start new information header identified by string t |
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* isheadid(s) returns true if s is a header id line |
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* headidval(r,s) copy header identifier value in s to r |
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* dateval(t,s) get capture date value as UTC |
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* gmtval(t,s) get GMT as UTC |
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* fputdate(t,fp) put out the given UTC |
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* fputnow(fp) put out the current date and time |
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* printargs(ac,av,fp) print an argument list to fp, followed by '\n' |
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* isformat(s) returns true if s is of the form "FORMAT=*" |
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* formatval(r,s) copy the format value in s to r |
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* fputformat(s,fp) write "FORMAT=%s" to fp |
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* nativebigendian() are we native on big-endian machine? |
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* isbigendian(s) header line matches "BigEndian=1" (-1 if irrelevant) |
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* fputendian(fp) write native endianness in BigEndian= line |
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* getheader(fp,f,p) read header from fp, calling f(s,p) on each line |
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* globmatch(pat, str) check for glob match of str against pat |
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* checkheader(i,p,o) check header format from i against p and copy to o |
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* To copy header from input to output, use getheader(fin, fputs, fout) |
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*/ |
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#include <stdio.h> |
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#include "copyright.h" |
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|
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#include <ctype.h> |
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|
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#define MAXLINE 512 |
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#include "tiff.h" /* for int32 */ |
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#include "rtio.h" |
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#include "resolu.h" |
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|
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#ifndef BSD |
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#define index strchr |
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#endif |
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#define MAXLINE 2048 |
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|
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extern char *index(); |
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extern time_t timegm(struct tm *tm); |
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|
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char HDRSTR[] = "#?"; /* information header magic number */ |
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const char HDRSTR[] = "#?"; /* information header magic number */ |
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|
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char FMTSTR[] = "FORMAT="; /* format identifier */ |
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const char FMTSTR[] = "FORMAT="; /* format identifier */ |
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|
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const char TMSTR[] = "CAPDATE="; /* capture date identifier */ |
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const char GMTSTR[] = "GMT="; /* GMT identifier */ |
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|
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newheader(s, fp) /* identifying line of information header */ |
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char *s; |
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register FILE *fp; |
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const char BIGEND[] = "BigEndian="; /* big-endian variable */ |
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|
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static gethfunc mycheck; |
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|
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|
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void |
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newheader( /* identifying line of information header */ |
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const char *s, |
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FILE *fp |
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) |
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{ |
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fputs(HDRSTR, fp); |
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fputs(s, fp); |
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|
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|
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int |
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headidval(r,s) /* get header id (return true if is id) */ |
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register char *r, *s; |
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headidval( /* get header id (return true if is id) */ |
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char *r, |
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const char *s |
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) |
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{ |
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register char *cp = HDRSTR; |
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const char *cp = HDRSTR; |
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|
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while (*cp) if (*cp++ != *s++) return(0); |
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if (r == NULL) return(1); |
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|
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|
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int |
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isheadid(s) /* check to see if line is header id */ |
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char *s; |
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dateval( /* convert capture date line to UTC */ |
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time_t *tloc, |
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const char *s |
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) |
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{ |
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return(headidval(NULL, s)); |
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struct tm tms; |
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const char *cp = TMSTR; |
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|
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while (*cp) if (*cp++ != *s++) return(0); |
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while (isspace(*s)) s++; |
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if (!*s) return(0); |
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if (sscanf(s, "%d:%d:%d %d:%d:%d", |
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&tms.tm_year, &tms.tm_mon, &tms.tm_mday, |
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&tms.tm_hour, &tms.tm_min, &tms.tm_sec) != 6) |
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return(0); |
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if (tloc == NULL) |
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return(1); |
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tms.tm_mon--; |
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tms.tm_year -= 1900; |
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tms.tm_isdst = -1; /* ask mktime() to figure out DST */ |
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*tloc = mktime(&tms); |
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return(1); |
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} |
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|
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|
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printargs(ac, av, fp) /* print arguments to a file */ |
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int ac; |
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char **av; |
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register FILE *fp; |
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int |
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gmtval( /* convert GMT date line to UTC */ |
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time_t *tloc, |
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const char *s |
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) |
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{ |
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int quote; |
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struct tm tms; |
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const char *cp = GMTSTR; |
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|
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while (*cp) if (*cp++ != *s++) return(0); |
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while (isspace(*s)) s++; |
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if (!*s) return(0); |
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if (sscanf(s, "%d:%d:%d %d:%d:%d", |
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&tms.tm_year, &tms.tm_mon, &tms.tm_mday, |
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&tms.tm_hour, &tms.tm_min, &tms.tm_sec) != 6) |
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return(0); |
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if (tloc == NULL) |
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return(1); |
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tms.tm_mon--; |
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tms.tm_year -= 1900; |
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*tloc = timegm(&tms); |
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return(1); |
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} |
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|
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|
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void |
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fputdate( /* write out the given time value (local & GMT) */ |
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time_t tv, |
134 |
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FILE *fp |
135 |
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) |
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{ |
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struct tm *tms; |
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|
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tms = localtime(&tv); |
140 |
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if (tms != NULL) |
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fprintf(fp, "%s %04d:%02d:%02d %02d:%02d:%02d\n", TMSTR, |
142 |
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tms->tm_year+1900, tms->tm_mon+1, tms->tm_mday, |
143 |
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tms->tm_hour, tms->tm_min, tms->tm_sec); |
144 |
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tms = gmtime(&tv); |
145 |
+ |
if (tms != NULL) |
146 |
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fprintf(fp, "%s %04d:%02d:%02d %02d:%02d:%02d\n", GMTSTR, |
147 |
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tms->tm_year+1900, tms->tm_mon+1, tms->tm_mday, |
148 |
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tms->tm_hour, tms->tm_min, tms->tm_sec); |
149 |
+ |
} |
150 |
+ |
|
151 |
+ |
|
152 |
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void |
153 |
+ |
fputnow( /* write out the current time */ |
154 |
+ |
FILE *fp |
155 |
+ |
) |
156 |
+ |
{ |
157 |
+ |
time_t tv; |
158 |
+ |
time(&tv); |
159 |
+ |
fputdate(tv, fp); |
160 |
+ |
} |
161 |
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|
162 |
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|
163 |
+ |
void |
164 |
+ |
printargs( /* print arguments to a file */ |
165 |
+ |
int ac, |
166 |
+ |
char **av, |
167 |
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FILE *fp |
168 |
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) |
169 |
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{ |
170 |
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while (ac-- > 0) { |
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if (index(*av, ' ') != NULL) { /* quote it */ |
172 |
< |
if (index(*av, '\'') != NULL) |
84 |
< |
quote = '"'; |
85 |
< |
else |
86 |
< |
quote = '\''; |
87 |
< |
putc(quote, fp); |
88 |
< |
fputs(*av++, fp); |
89 |
< |
putc(quote, fp); |
90 |
< |
} else |
91 |
< |
fputs(*av++, fp); |
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< |
putc(ac ? ' ' : '\n', fp); |
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fputword(*av++, fp); |
172 |
> |
fputc(ac ? ' ' : '\n', fp); |
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} |
174 |
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} |
175 |
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|
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|
177 |
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int |
178 |
< |
formatval(r, s) /* get format value (return true if format) */ |
179 |
< |
register char *r; |
180 |
< |
register char *s; |
178 |
> |
formatval( /* get format value (return true if format) */ |
179 |
> |
char fmt[MAXFMTLEN], |
180 |
> |
const char *s |
181 |
> |
) |
182 |
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{ |
183 |
< |
register char *cp = FMTSTR; |
183 |
> |
const char *cp = FMTSTR; |
184 |
> |
char *r = fmt; |
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|
186 |
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while (*cp) if (*cp++ != *s++) return(0); |
187 |
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while (isspace(*s)) s++; |
189 |
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if (r == NULL) return(1); |
190 |
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do |
191 |
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*r++ = *s++; |
192 |
< |
while(*s && !isspace(*s)); |
192 |
> |
while (*s && !isspace(*s) && r-fmt < MAXFMTLEN-1); |
193 |
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*r = '\0'; |
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return(1); |
195 |
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} |
196 |
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|
197 |
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|
198 |
+ |
void |
199 |
+ |
fputformat( /* put out a format value */ |
200 |
+ |
const char *s, |
201 |
+ |
FILE *fp |
202 |
+ |
) |
203 |
+ |
{ |
204 |
+ |
fputs(FMTSTR, fp); |
205 |
+ |
fputs(s, fp); |
206 |
+ |
putc('\n', fp); |
207 |
+ |
} |
208 |
+ |
|
209 |
+ |
|
210 |
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int |
211 |
< |
isformat(s) /* is line a format line? */ |
118 |
< |
char *s; |
211 |
> |
nativebigendian() /* are we native on a big-endian machine? */ |
212 |
|
{ |
213 |
< |
return(formatval(NULL, s)); |
213 |
> |
union { int32 i; char c[4]; } u; |
214 |
> |
|
215 |
> |
u.i = 1; |
216 |
> |
|
217 |
> |
return(u.c[0] == 0); |
218 |
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} |
219 |
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|
220 |
|
|
221 |
< |
fputformat(s, fp) /* put out a format value */ |
222 |
< |
char *s; |
223 |
< |
FILE *fp; |
221 |
> |
int |
222 |
> |
isbigendian( /* header line says "BigEndian=1" (-1 if irrelevant) */ |
223 |
> |
const char *s |
224 |
> |
) |
225 |
|
{ |
226 |
< |
fputs(FMTSTR, fp); |
227 |
< |
fputs(s, fp); |
228 |
< |
putc('\n', fp); |
226 |
> |
const char *be = BIGEND; |
227 |
> |
|
228 |
> |
while (*s & (*be != '=') && *s++ == *be) |
229 |
> |
++be; |
230 |
> |
if (*be != '=') |
231 |
> |
return(-1); /* irrelevant */ |
232 |
> |
while (isspace(*s)) |
233 |
> |
s++; |
234 |
> |
if (*s++ != '=') |
235 |
> |
return(-1); |
236 |
> |
while (isspace(*s)) |
237 |
> |
s++; |
238 |
> |
return(*s == '1'); |
239 |
|
} |
240 |
|
|
241 |
|
|
242 |
+ |
void |
243 |
+ |
fputendian( /* write native endianness in BigEndian= line */ |
244 |
+ |
FILE *fp |
245 |
+ |
) |
246 |
+ |
{ |
247 |
+ |
fputs(BIGEND, fp); |
248 |
+ |
if (nativebigendian()) |
249 |
+ |
fputs("1\n", fp); |
250 |
+ |
else |
251 |
+ |
fputs("0\n", fp); |
252 |
+ |
} |
253 |
+ |
|
254 |
+ |
|
255 |
|
int |
256 |
< |
getheader(fp, f, p) /* get header from file */ |
257 |
< |
FILE *fp; |
258 |
< |
int (*f)(); |
259 |
< |
char *p; |
256 |
> |
getheader( /* get header from file */ |
257 |
> |
FILE *fp, |
258 |
> |
gethfunc *f, |
259 |
> |
void *p |
260 |
> |
) |
261 |
|
{ |
262 |
+ |
int rtotal = 0; |
263 |
|
char buf[MAXLINE]; |
264 |
+ |
int firstc = fgetc(fp); |
265 |
|
|
266 |
+ |
if (!isprint(firstc)) |
267 |
+ |
return(-1); /* messed up */ |
268 |
+ |
ungetc(firstc, fp); |
269 |
|
for ( ; ; ) { |
270 |
+ |
int rval = 0; |
271 |
|
buf[MAXLINE-2] = '\n'; |
272 |
|
if (fgets(buf, MAXLINE, fp) == NULL) |
273 |
|
return(-1); |
274 |
< |
if (buf[0] == '\n') |
275 |
< |
return(0); |
148 |
< |
#ifdef MSDOS |
149 |
< |
if (buf[0] == '\r' && buf[1] == '\n') |
150 |
< |
return(0); |
151 |
< |
#endif |
274 |
> |
if (buf[buf[0]=='\r'] == '\n') /* end of header? */ |
275 |
> |
return(rtotal); |
276 |
|
if (buf[MAXLINE-2] != '\n') { |
277 |
|
ungetc(buf[MAXLINE-2], fp); /* prevent false end */ |
278 |
|
buf[MAXLINE-2] = '\0'; |
279 |
|
} |
280 |
< |
if (f != NULL) |
281 |
< |
(*f)(buf, p); |
280 |
> |
if (f != NULL && (rval = (*f)(buf, p)) < 0) |
281 |
> |
return(-1); |
282 |
> |
rtotal += rval; |
283 |
|
} |
284 |
|
} |
285 |
|
|
286 |
|
|
287 |
|
struct check { |
288 |
|
FILE *fp; |
289 |
< |
char fs[64]; |
289 |
> |
char fs[MAXFMTLEN]; |
290 |
|
}; |
291 |
|
|
292 |
|
|
293 |
< |
static |
294 |
< |
mycheck(s, cp) /* check a header line for format info. */ |
295 |
< |
char *s; |
296 |
< |
register struct check *cp; |
293 |
> |
static int |
294 |
> |
mycheck( /* check a header line for format info. */ |
295 |
> |
char *s, |
296 |
> |
void *cp |
297 |
> |
) |
298 |
|
{ |
299 |
< |
if (!formatval(cp->fs, s) && cp->fp != NULL) |
300 |
< |
fputs(s, cp->fp); |
299 |
> |
struct check *scp = (struct check *)cp; |
300 |
> |
|
301 |
> |
if (!formatval(scp->fs, s) && scp->fp != NULL) |
302 |
> |
fputs(s, scp->fp); |
303 |
> |
|
304 |
> |
return(0); |
305 |
|
} |
306 |
|
|
307 |
|
|
308 |
|
int |
309 |
< |
globmatch(pat, str) /* check for glob match of str against pat */ |
310 |
< |
char *pat, *str; |
309 |
> |
globmatch( /* check for match of s against pattern p */ |
310 |
> |
const char *p, |
311 |
> |
const char *s |
312 |
> |
) |
313 |
|
{ |
314 |
< |
register char *p = pat, *s = str; |
314 |
> |
int setmatch; |
315 |
|
|
316 |
|
do { |
317 |
|
switch (*p) { |
322 |
|
case '*': /* match any string */ |
323 |
|
while (p[1] == '*') p++; |
324 |
|
do |
325 |
< |
if ( (p[1]=='?' || p[1]==*s) && |
325 |
> |
if ( (p[1]=='?') | (p[1]==*s) && |
326 |
|
globmatch(p+1,s) ) |
327 |
|
return(1); |
328 |
|
while (*s++); |
329 |
|
return(0); |
330 |
+ |
case '[': /* character set */ |
331 |
+ |
setmatch = *s == *++p; |
332 |
+ |
if (!*p) |
333 |
+ |
return(0); |
334 |
+ |
while (*++p != ']') { |
335 |
+ |
if (!*p) |
336 |
+ |
return(0); |
337 |
+ |
if (*p == '-') { |
338 |
+ |
setmatch += (p[-1] <= *s && *s <= p[1]); |
339 |
+ |
if (!*++p) |
340 |
+ |
break; |
341 |
+ |
} else |
342 |
+ |
setmatch += (*p == *s); |
343 |
+ |
} |
344 |
+ |
if (!setmatch) |
345 |
+ |
return(0); |
346 |
+ |
s++; |
347 |
+ |
break; |
348 |
|
case '\\': /* literal next */ |
349 |
|
p++; |
350 |
|
/* fall through */ |
374 |
|
*/ |
375 |
|
|
376 |
|
int |
377 |
< |
checkheader(fin, fmt, fout) |
378 |
< |
FILE *fin; |
379 |
< |
char *fmt; |
380 |
< |
FILE *fout; |
377 |
> |
checkheader( |
378 |
> |
FILE *fin, |
379 |
> |
char fmt[MAXFMTLEN], |
380 |
> |
FILE *fout |
381 |
> |
) |
382 |
|
{ |
383 |
|
struct check cdat; |
384 |
< |
register char *cp; |
384 |
> |
char *cp; |
385 |
|
|
386 |
|
cdat.fp = fout; |
387 |
|
cdat.fs[0] = '\0'; |
390 |
|
if (!cdat.fs[0]) |
391 |
|
return(0); |
392 |
|
for (cp = fmt; *cp; cp++) /* check for globbing */ |
393 |
< |
if (*cp == '?' | *cp == '*') |
393 |
> |
if ((*cp == '?') | (*cp == '*')) { |
394 |
|
if (globmatch(fmt, cdat.fs)) { |
395 |
|
strcpy(fmt, cdat.fs); |
396 |
|
return(1); |
397 |
|
} else |
398 |
|
return(-1); |
399 |
+ |
} |
400 |
|
return(strcmp(fmt, cdat.fs) ? -1 : 1); /* literal match */ |
401 |
|
} |