#include <assert.h> #include <ctype.h> #include <rules.h> #include <string.h> #include <stddef.h> #include <stdlib.h> char *strdup(const char *s) { if (!ENV_RAMSTAGE) dead_code(); /* This can't be used without malloc(). */ size_t sz = strlen(s) + 1; char *d = malloc(sz); if (d) memcpy(d, s, sz); return d; } char *strconcat(const char *s1, const char *s2) { if (!ENV_RAMSTAGE) dead_code(); /* This can't be used without malloc(). */ size_t sz_1 = strlen(s1); size_t sz_2 = strlen(s2); char *d = malloc(sz_1 + sz_2 + 1); if (d) { memcpy(d, s1, sz_1); memcpy(d + sz_1, s2, sz_2 + 1); } return d; } size_t strnlen(const char *src, size_t max) { size_t i = 0; while ((*src++) && (i < max)) i++; return i; } size_t strlen(const char *src) { size_t i = 0; while (*src++) i++; return i; } char *strchr(const char *s, int c) { do { if (*s == c) return (char *)s; } while (*s++); return NULL; } char *strrchr(const char *s, int c) { char *p = NULL; do { if (*s == c) p = (char *)s; } while (*s++); return p; } char *strncpy(char *to, const char *from, int count) { char *ret = to; char data; while (count > 0) { count--; data = *from++; *to++ = data; if (data == '\0') break; } while (count > 0) { count--; *to++ = '\0'; } return ret; } char *strcpy(char *dst, const char *src) { char *ptr = dst; while (*src) *dst++ = *src++; *dst = '\0'; return ptr; } int strcmp(const char *s1, const char *s2) { int r; while ((r = (*s1 - *s2)) == 0 && *s1) { s1++; s2++; } return r; } int strncmp(const char *s1, const char *s2, int maxlen) { int i; for (i = 0; i < maxlen; i++) { if ((s1[i] != s2[i]) || (s1[i] == '\0')) return s1[i] - s2[i]; } return 0; } unsigned int skip_atoi(char **s) { unsigned int i = 0; while (isdigit(**s)) i = i*10 + *((*s)++) - '0'; return i; }