diff options
Diffstat (limited to 'src/libstrongswan/utils/utils.h')
| -rw-r--r-- | src/libstrongswan/utils/utils.h | 70 |
1 files changed, 54 insertions, 16 deletions
diff --git a/src/libstrongswan/utils/utils.h b/src/libstrongswan/utils/utils.h index cda7edf08..a55e7d831 100644 --- a/src/libstrongswan/utils/utils.h +++ b/src/libstrongswan/utils/utils.h @@ -1,5 +1,5 @@ /* - * Copyright (C) 2008-2012 Tobias Brunner + * Copyright (C) 2008-2014 Tobias Brunner * Copyright (C) 2008 Martin Willi * Hochschule fuer Technik Rapperswil * @@ -30,6 +30,7 @@ #include <string.h> #include "enum.h" +#include "utils/strerror.h" /** * strongSwan program return codes @@ -464,6 +465,20 @@ static inline void memwipe(void *ptr, size_t n) void *memstr(const void *haystack, const char *needle, size_t n); /** + * Replacement for memrchr(3) if it is not provided by the C library. + * + * @param s start of the memory area to search + * @param c character to search + * @param n length of memory area to search + * @return pointer to the found character or NULL + */ +void *utils_memrchr(const void *s, int c, size_t n); + +#ifndef HAVE_MEMRCHR +#define memrchr(s,c,n) utils_memrchr(s,c,n) +#endif + +/** * Translates the characters in the given string, searching for characters * in 'from' and mapping them to characters in 'to'. * The two characters sets 'from' and 'to' must contain the same number of @@ -472,36 +487,59 @@ void *memstr(const void *haystack, const char *needle, size_t n); char *translate(char *str, const char *from, const char *to); /** - * Creates a directory and all required parent directories. + * Replaces all occurrences of search in the given string with replace. * - * @param path path to the new directory - * @param mode permissions of the new directory/directories - * @return TRUE on success + * Allocates memory only if anything is replaced in the string. The original + * string is also returned if any of the arguments are invalid (e.g. if search + * is empty or any of them are NULL). + * + * @param str original string + * @param search string to search for and replace + * @param replace string to replace found occurrences with + * @return allocated string, if anything got replaced, str otherwise */ -bool mkdir_p(const char *path, mode_t mode); +char *strreplace(const char *str, const char *search, const char *replace); /** - * Thread-safe wrapper around strerror and strerror_r. + * Like dirname(3) returns the directory part of the given null-terminated + * pathname, up to but not including the final '/' (or '.' if no '/' is found). + * Trailing '/' are not counted as part of the pathname. * - * This is required because the first is not thread-safe (on some platforms) - * and the second uses two different signatures (POSIX/GNU) and is impractical - * to use anyway. + * The difference is that it does this in a thread-safe manner (i.e. it does not + * use static buffers) and does not modify the original path. * - * @param errnum error code (i.e. errno) - * @return error message + * @param path original pathname + * @return allocated directory component */ -const char *safe_strerror(int errnum); +char *path_dirname(const char *path); /** - * Replace usages of strerror(3) with thread-safe variant. + * Like basename(3) returns the filename part of the given null-terminated path, + * i.e. the part following the final '/' (or '.' if path is empty or NULL). + * Trailing '/' are not counted as part of the pathname. + * + * The difference is that it does this in a thread-safe manner (i.e. it does not + * use static buffers) and does not modify the original path. + * + * @param path original pathname + * @return allocated filename component */ -#define strerror(errnum) safe_strerror(errnum) +char *path_basename(const char *path); + +/** + * Creates a directory and all required parent directories. + * + * @param path path to the new directory + * @param mode permissions of the new directory/directories + * @return TRUE on success + */ +bool mkdir_p(const char *path, mode_t mode); #ifndef HAVE_CLOSEFROM /** * Close open file descriptors greater than or equal to lowfd. * - * @param lowfd start closing file descriptoros from here + * @param lowfd start closing file descriptors from here */ void closefrom(int lowfd); #endif |