diff options
Diffstat (limited to 'pseudo.h')
| -rw-r--r-- | pseudo.h | 28 |
1 files changed, 27 insertions, 1 deletions
@@ -18,6 +18,7 @@ * */ #include <stdlib.h> +#include <fcntl.h> typedef enum { OP_UNKNOWN = -1, @@ -25,6 +26,7 @@ typedef enum { OP_CHDIR, OP_CHMOD, OP_CHOWN, + OP_CHROOT, OP_CLOSE, OP_CREAT, OP_DUP, @@ -113,7 +115,7 @@ extern int pseudo_diag(char *, ...) __attribute__ ((format (printf, 1, 2))); void pseudo_new_pid(void); /* pseudo_fix_path resolves symlinks up to this depth */ #define PSEUDO_MAX_LINK_RECURSION 16 -extern char *pseudo_fix_path(char *, const char *, size_t, size_t *, int); +extern char *pseudo_fix_path(const char *, const char *, size_t, size_t, size_t *, int); extern void pseudo_dropenv(void); extern void pseudo_setupenv(char *); extern char *pseudo_prefix_path(char *); @@ -128,3 +130,27 @@ extern char *pseudo_version; #define PSEUDO_LOGFILE PSEUDO_DATA "pseudo.log" #define PSEUDO_PIDFILE PSEUDO_DATA "pseudo.pid" #define PSEUDO_SOCKET PSEUDO_DATA "pseudo.socket" + +/* some systems might not have *at(). We like to define operations in + * terms of each other, and for instance, open(...) is the same as + * openat(AT_FDCWD, ...). If no AT_FDCWD is provided, any value that can't + * be a valid file descriptor will do. Using -2 because -1 could be + * mistaken for a failed syscall return. Similarly, any value which isn't + * zero will do to fake AT_SYMLINK_NOFOLLOW. Finally, if this happened, + * we set our own flag we can use to indicate that dummy implementations + * of the _at functions are needed. + */ +#ifndef AT_FDCWD +#define AT_FDCWD -2 +#define AT_SYMLINK_NOFOLLOW 1 +#define PSEUDO_NO_REAL_AT_FUNCTIONS +#endif + +/* Likewise, someone might not have O_LARGEFILE (the flag equivalent to + * using open64()). Since open64() is the same as O_LARGEFILE in flags, + * we implement it that way... If the system has no O_LARGEFILE, we'll + * just call open() with nothing special. + */ +#ifndef O_LARGEFILE +#define O_LARGEFILE 0 +#endif |