4 |
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/* |
5 |
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* header.c - routines for reading and writing information headers. |
6 |
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* |
7 |
< |
* Externals declared in resolu.h |
7 |
> |
* Externals declared in rtio.h |
8 |
|
* |
9 |
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* newheader(t,fp) start new information header identified by string t |
10 |
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* headidval(r,s) copy header identifier value in s to r |
210 |
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{ |
211 |
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int rtotal = 0; |
212 |
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char buf[MAXLINE]; |
213 |
+ |
int firstc = fgetc(fp); |
214 |
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|
215 |
+ |
if (!isprint(firstc)) |
216 |
+ |
return(-1); /* messed up */ |
217 |
+ |
ungetc(firstc, fp); |
218 |
|
for ( ; ; ) { |
219 |
|
int rval = 0; |
220 |
|
buf[MAXLINE-2] = '\n'; |
221 |
|
if (fgets(buf, MAXLINE, fp) == NULL) |
222 |
|
return(-1); |
223 |
< |
if (buf[buf[0]=='\r'] == '\n') |
223 |
> |
if (buf[buf[0]=='\r'] == '\n') /* end of header? */ |
224 |
|
return(rtotal); |
225 |
|
if (buf[MAXLINE-2] != '\n') { |
226 |
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ungetc(buf[MAXLINE-2], fp); /* prevent false end */ |