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#include "types.h"
#include "stat.h"
#include "fcntl.h"
#include "user.h"
int
puts(char *s)
{
return write(1, s, strlen(s));
}
char*
strcpy(char *s, char *t)
{
char *os;
os = s;
while((*s++ = *t++) != 0)
;
return os;
}
int
strcmp(const char *p, const char *q)
{
while (*p && *p == *q)
p++, q++;
return (int) ((unsigned char) *p - (unsigned char) *q);
}
unsigned int
strlen(char *s)
{
int n = 0;
for(n = 0; s[n]; n++)
;
return n;
}
void *
memset(void *dst, int c, unsigned int n)
{
char *d = (char *) dst;
while(n-- > 0)
*d++ = c;
return dst;
}
char *
strchr(const char *s, char c)
{
for (; *s; s++)
if (*s == c)
return (char *) s;
return 0;
}
char *
gets(char *buf, int max)
{
int i = 0, cc;
char c;
while(i+1 < max){
cc = read(0, &c, 1);
if(cc < 1)
break;
if(c == '\n' || c == '\r')
break;
buf[i++] = c;
}
buf[i] = '\0';
return buf;
}
int
stat(char *n, struct stat *st)
{
int fd;
int r;
fd = open(n, O_RDONLY);
if (fd < 0) return -1;
r = fstat(fd, st);
close(fd);
return r;
}
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