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- #include "stdinc.h"
- #include "dat.h"
- #include "fns.h"
- int
- readIFile(IFile *f, char *name)
- {
- ZBlock *b;
- b = readFile(name);
- if(b == nil)
- return 0;
- f->name = name;
- f->b = b;
- f->pos = 0;
- return 1;
- }
- void
- freeIFile(IFile *f)
- {
- freeZBlock(f->b);
- f->b = nil;
- f->pos = 0;
- }
- int
- partIFile(IFile *f, Part *part, u64int start, u32int size)
- {
- ZBlock *b;
- b = allocZBlock(size, 0);
- if(b == nil)
- return 0;
- if(!readPart(part, start, b->data, size)){
- setErr(EAdmin, "can't read %s: %R", part->name);
- freeZBlock(b);
- return 0;
- }
- f->name = part->name;
- f->b = b;
- f->pos = 0;
- return 1;
- }
- /*
- * return the next non-blank input line,
- * stripped of leading white space and with # comments eliminated
- */
- char*
- ifileLine(IFile *f)
- {
- char *s, *e, *t;
- int c;
- for(;;){
- s = (char*)&f->b->data[f->pos];
- e = memchr(s, '\n', f->b->len - f->pos);
- if(e == nil)
- return nil;
- *e++ = '\0';
- f->pos = e - (char*)f->b->data;
- t = strchr(s, '#');
- if(t != nil)
- *t = '\0';
- for(; c = *s; s++)
- if(c != ' ' && c != '\t' && c != '\r')
- return s;
- }
- }
- int
- ifileName(IFile *f, char *dst)
- {
- char *s;
- s = ifileLine(f);
- if(s == nil || strlen(s) >= ANameSize)
- return 0;
- nameCp(dst, s);
- return 1;
- }
- int
- ifileU32Int(IFile *f, u32int *r)
- {
- char *s;
- s = ifileLine(f);
- if(s == nil)
- return 0;
- return strU32Int(s, r);
- }
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