string.h 1.7 KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869
  1. /* SPDX-License-Identifier: GPL-2.0 */
  2. #ifndef _TOOLS_LINUX_STRING_H_
  3. #define _TOOLS_LINUX_STRING_H_
  4. #include <linux/types.h> /* for size_t */
  5. #include <string.h>
  6. void *memdup(const void *src, size_t len);
  7. char **argv_split(const char *str, int *argcp);
  8. void argv_free(char **argv);
  9. int strtobool(const char *s, bool *res);
  10. #define strscpy strcpy
  11. /*
  12. * glibc based builds needs the extern while uClibc doesn't.
  13. * However uClibc headers also define __GLIBC__ hence the hack below
  14. */
  15. #if defined(__GLIBC__) && !defined(__UCLIBC__)
  16. // pragma diagnostic was introduced in gcc 4.6
  17. #if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)
  18. #pragma GCC diagnostic push
  19. #pragma GCC diagnostic ignored "-Wredundant-decls"
  20. #endif
  21. extern size_t strlcpy(char *dest, const char *src, size_t size);
  22. #if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)
  23. #pragma GCC diagnostic pop
  24. #endif
  25. #endif
  26. char *str_error_r(int errnum, char *buf, size_t buflen);
  27. char *strreplace(char *s, char old, char new);
  28. /**
  29. * strstarts - does @str start with @prefix?
  30. * @str: string to examine
  31. * @prefix: prefix to look for.
  32. */
  33. static inline bool strstarts(const char *str, const char *prefix)
  34. {
  35. return strncmp(str, prefix, strlen(prefix)) == 0;
  36. }
  37. /*
  38. * Checks if a string ends with another.
  39. */
  40. static inline bool str_ends_with(const char *str, const char *substr)
  41. {
  42. size_t len = strlen(str);
  43. size_t sublen = strlen(substr);
  44. if (sublen > len)
  45. return false;
  46. return !strcmp(str + len - sublen, substr);
  47. }
  48. extern char * __must_check skip_spaces(const char *);
  49. extern char *strim(char *);
  50. extern void remove_spaces(char *s);
  51. extern void *memchr_inv(const void *start, int c, size_t bytes);
  52. extern unsigned long long memparse(const char *ptr, char **retptr);
  53. #endif /* _TOOLS_LINUX_STRING_H_ */