X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=src%2Fshared%2Futil.h;h=57667ef895a4629164a05afe152d2fbc869a39d3;hb=db69869f264af2d1afcdd3e573e0e9fdd5bef065;hp=ddb35181abbdcca5d92e84177cea0e6c2ad50d70;hpb=919ce0b7affc6fbd68598b709faf477f56c22ac1;p=elogind.git diff --git a/src/shared/util.h b/src/shared/util.h index ddb35181a..57667ef89 100644 --- a/src/shared/util.h +++ b/src/shared/util.h @@ -40,16 +40,11 @@ #include #include #include +#include #include "macro.h" #include "time-util.h" -union dirent_storage { - struct dirent de; - uint8_t storage[offsetof(struct dirent, d_name) + - ((NAME_MAX + 1 + sizeof(long)) & ~(sizeof(long) - 1))]; -}; - /* What is interpreted as whitespace? */ #define WHITESPACE " \t\n\r" #define NEWLINE "\n\r" @@ -255,8 +250,19 @@ int make_stdio(int fd); int make_null_stdio(void); int make_console_stdio(void); -unsigned long long random_ull(void); -unsigned random_u(void); +void random_bytes(void *p, size_t n); + +static inline uint64_t random_u64(void) { + uint64_t u; + random_bytes(&u, sizeof(u)); + return u; +} + +static inline uint32_t random_u32(void) { + uint32_t u; + random_bytes(&u, sizeof(u)); + return u; +} /* For basic lookup tables with strictly enumerated entries */ #define __DEFINE_STRING_TABLE_LOOKUP(name,type,scope) \ @@ -804,3 +810,8 @@ int container_get_leader(const char *machine, pid_t *pid); int namespace_open(pid_t pid, int *pidns_fd, int *mntns_fd, int *root_fd); int namespace_enter(int pidns_fd, int mntns_fd, int root_fd); + +bool pid_valid(pid_t pid); + +int getpeercred(int fd, struct ucred *ucred); +int getpeersec(int fd, char **ret);