7 memset(void *p, int v, int n)
17 memmove(void *dst, void *src, int n)
28 memcmp(void *src, void *dst, int n)
33 while((n > 0) && (r = (*d++ - *s++)) == 0)
48 strchr(char *s, int c)
57 strrchr(char *s, int c)
61 while(s = strchr(s, c))
74 readn(void *f, void *data, int len)
81 if((len = read(f, p, e - p)) <= 0)
85 return p - (uchar*)data;
89 readline(void *f, char buf[64])
91 static char white[] = "\t ";
98 while(p < buf + 64-1){
103 else if(*p == 0x08 && p > buf){
107 }else if(read(f, p, 1) <= 0)
109 if(p == buf && strchr(white, *p))
115 while(p > buf && strchr(white, p[-1]))
123 configure(void *f, char *path)
125 char line[64], *p, *kern;
131 p = (char*)(CONFADDR & ~0xF0000000UL);
135 while((n = readline(f, line)) > 0){
136 if(*line == 0 || strchr("#;=", *line))
139 inblock = memcmp("[common]", line, 8);
142 if(memcmp("clear", line, 6) == 0){
146 if(memcmp("boot", line, 5) == 0)
148 if(inblock || !strrchr(line, '='))
150 print(line); print(crnl);
151 if(memcmp("bootfile=", line, 9) == 0)
152 memmove(kern = path, line+9, 1 + n-9);
153 memmove(p, line, n); p += n;
162 print("no bootfile\r\n");
165 for(n=0; n<10000; n++)
168 if(p = strrchr(kern, '!'))
180 return (p[0]<<8) | p[1];
189 return (p[0]<<24) | (p[1]<<16) | (p[2]<<8) | p[3];
200 if(readn(f, &ex, sizeof(ex)) != sizeof(ex))
202 if(beswal(ex.magic) != I_MAGIC)
204 e = (uchar*)(beswal(ex.entry) & ~0xF0000000UL);
206 if(readn(f, e, n) != n)
208 d = (uchar*)(((ulong)e + n + 0xFFF) & ~0xFFFUL);
210 if(readn(f, d, n) != n)