| ␊ |
| size_t strlen(const char * s)␊ |
| {␊ |
| ␉int n = 0;␊ |
| ␉while (*s++) n++;␊ |
| ␉return(n);␊ |
| const char* save = s;␊ |
| while (*s++);␊ |
| return (--s) - save;␊ |
| }␊ |
| ␊ |
| /*#endif*/␊ |
|
| ␉return (*s1 - *s2);␊ |
| }␊ |
| ␊ |
| int strncmp(const char * s1, const char * s2, size_t len)␊ |
| /* Derived from FreeBSD source */␊ |
| int strncmp(const char * s1, const char * s2, size_t n)␊ |
| {␊ |
| ␉register int n = len;␊ |
| ␉while (--n >= 0 && *s1 == *s2++)␊ |
| ␉␉if (*s1++ == '\0')␊ |
| ␉␉␉return(0);␊ |
| ␉return(n<0 ? 0 : *s1 - *--s2);␊ |
| if (!n)␊ |
| return 0;␊ |
| do {␊ |
| if (*s1 != *s2++)␊ |
| return (*(const unsigned char *)s1 -␊ |
| *(const unsigned char *)(s2 - 1));␊ |
| if (!*s1++)␊ |
| break;␊ |
| } while (--n);␊ |
| return 0;␊ |
| }␊ |
| ␊ |
| char *␊ |
|
| {␊ |
| ␉register char *ret = s1;␊ |
| ␉while (n && (*s1++ = *s2++))␊ |
| ␉--n;␊ |
| ␉/* while (n--) *s1++ = '\0'; */␊ |
| --n;␊ |
| ␉if (n > 0) {␊ |
| ␉␉bzero(s1, n);␊ |
| ␉}␊ |
|
| ␉register char *ret = s1;␊ |
| ␉while (*s1)␊ |
| ␉␉s1++;␊ |
| ␉while (n-- && *s2)␊ |
| ␉␉*s1++ = *s2++;␊ |
| ␉*s1 = '\0';␊ |
| ␉while (n-- && (*s1++ = *s2++));␊ |
| ␉return ret;␊ |
| }␊ |
| ␊ |
| char *strcat(char *s1, const char *s2)␊ |
| {␊ |
| ␉return(strncat(s1, s2, strlen(s2)));␊ |
| ␉register char *ret = s1;␊ |
| ␉while (*s1)␊ |
| ␉␉s1++;␊ |
| ␉while ((*s1++ = *s2++));␊ |
| ␉return ret;␊ |
| }␊ |
| ␊ |
| char *strdup(const char *s1)␊ |
