Merge branch 'master' of git://git.kernel.org/pub/scm/git/git
[git/jnareb-git.git] / git-compat-util.h
blobcde442fb5f47cd13757e09ae435963bc061db083
1 #ifndef GIT_COMPAT_UTIL_H
2 #define GIT_COMPAT_UTIL_H
4 #define _FILE_OFFSET_BITS 64
6 #ifndef FLEX_ARRAY
7 /*
8 * See if our compiler is known to support flexible array members.
9 */
10 #if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L) && (!defined(__SUNPRO_C) || (__SUNPRO_C > 0x580))
11 # define FLEX_ARRAY /* empty */
12 #elif defined(__GNUC__)
13 # if (__GNUC__ >= 3)
14 # define FLEX_ARRAY /* empty */
15 # else
16 # define FLEX_ARRAY 0 /* older GNU extension */
17 # endif
18 #endif
21 * Otherwise, default to safer but a bit wasteful traditional style
23 #ifndef FLEX_ARRAY
24 # define FLEX_ARRAY 1
25 #endif
26 #endif
28 #define ARRAY_SIZE(x) (sizeof(x)/sizeof(x[0]))
29 #define bitsizeof(x) (CHAR_BIT * sizeof(x))
31 #define maximum_signed_value_of_type(a) \
32 (INTMAX_MAX >> (bitsizeof(intmax_t) - bitsizeof(a)))
34 #define maximum_unsigned_value_of_type(a) \
35 (UINTMAX_MAX >> (bitsizeof(uintmax_t) - bitsizeof(a)))
38 * Signed integer overflow is undefined in C, so here's a helper macro
39 * to detect if the sum of two integers will overflow.
41 * Requires: a >= 0, typeof(a) equals typeof(b)
43 #define signed_add_overflows(a, b) \
44 ((b) > maximum_signed_value_of_type(a) - (a))
46 #define unsigned_add_overflows(a, b) \
47 ((b) > maximum_unsigned_value_of_type(a) - (a))
49 #ifdef __GNUC__
50 #define TYPEOF(x) (__typeof__(x))
51 #else
52 #define TYPEOF(x)
53 #endif
55 #define MSB(x, bits) ((x) & TYPEOF(x)(~0ULL << (bitsizeof(x) - (bits))))
56 #define HAS_MULTI_BITS(i) ((i) & ((i) - 1)) /* checks if an integer has more than 1 bit set */
58 #define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d))
60 /* Approximation of the length of the decimal representation of this type. */
61 #define decimal_length(x) ((int)(sizeof(x) * 2.56 + 0.5) + 1)
63 #if defined(__sun__)
65 * On Solaris, when _XOPEN_EXTENDED is set, its header file
66 * forces the programs to be XPG4v2, defeating any _XOPEN_SOURCE
67 * setting to say we are XPG5 or XPG6. Also on Solaris,
68 * XPG6 programs must be compiled with a c99 compiler, while
69 * non XPG6 programs must be compiled with a pre-c99 compiler.
71 # if __STDC_VERSION__ - 0 >= 199901L
72 # define _XOPEN_SOURCE 600
73 # else
74 # define _XOPEN_SOURCE 500
75 # endif
76 #elif !defined(__APPLE__) && !defined(__FreeBSD__) && !defined(__USLC__) && \
77 !defined(_M_UNIX) && !defined(__sgi) && !defined(__DragonFly__) && \
78 !defined(__TANDEM) && !defined(__QNX__)
79 #define _XOPEN_SOURCE 600 /* glibc2 and AIX 5.3L need 500, OpenBSD needs 600 for S_ISLNK() */
80 #define _XOPEN_SOURCE_EXTENDED 1 /* AIX 5.3L needs this */
81 #endif
82 #define _ALL_SOURCE 1
83 #define _GNU_SOURCE 1
84 #define _BSD_SOURCE 1
85 #define _NETBSD_SOURCE 1
86 #define _SGI_SOURCE 1
88 #ifdef WIN32 /* Both MinGW and MSVC */
89 # if defined (_MSC_VER)
90 # define _WIN32_WINNT 0x0502
91 # endif
92 #define WIN32_LEAN_AND_MEAN /* stops windows.h including winsock.h */
93 #include <winsock2.h>
94 #include <windows.h>
95 #endif
97 #include <unistd.h>
98 #include <stdio.h>
99 #include <sys/stat.h>
100 #include <fcntl.h>
101 #include <stddef.h>
102 #include <stdlib.h>
103 #include <stdarg.h>
104 #include <string.h>
105 #ifdef HAVE_STRINGS_H
106 #include <strings.h> /* for strcasecmp() */
107 #endif
108 #include <errno.h>
109 #include <limits.h>
110 #ifdef NEEDS_SYS_PARAM_H
111 #include <sys/param.h>
112 #endif
113 #include <sys/types.h>
114 #include <dirent.h>
115 #include <sys/time.h>
116 #include <time.h>
117 #include <signal.h>
118 #ifndef USE_WILDMATCH
119 #include <fnmatch.h>
120 #endif
121 #include <assert.h>
122 #include <regex.h>
123 #include <utime.h>
124 #include <syslog.h>
125 #ifndef NO_SYS_POLL_H
126 #include <sys/poll.h>
127 #else
128 #include <poll.h>
129 #endif
130 #if defined(__MINGW32__)
131 /* pull in Windows compatibility stuff */
132 #include "compat/mingw.h"
133 #elif defined(_MSC_VER)
134 #include "compat/msvc.h"
135 #else
136 #include <sys/wait.h>
137 #include <sys/resource.h>
138 #include <sys/socket.h>
139 #include <sys/ioctl.h>
140 #include <termios.h>
141 #ifndef NO_SYS_SELECT_H
142 #include <sys/select.h>
143 #endif
144 #include <netinet/in.h>
145 #include <netinet/tcp.h>
146 #include <arpa/inet.h>
147 #include <netdb.h>
148 #include <pwd.h>
149 #include <sys/un.h>
150 #ifndef NO_INTTYPES_H
151 #include <inttypes.h>
152 #else
153 #include <stdint.h>
154 #endif
155 #ifdef NO_INTPTR_T
157 * On I16LP32, ILP32 and LP64 "long" is the save bet, however
158 * on LLP86, IL33LLP64 and P64 it needs to be "long long",
159 * while on IP16 and IP16L32 it is "int" (resp. "short")
160 * Size needs to match (or exceed) 'sizeof(void *)'.
161 * We can't take "long long" here as not everybody has it.
163 typedef long intptr_t;
164 typedef unsigned long uintptr_t;
165 #endif
166 int get_st_mode_bits(const char *path, int *mode);
167 #if defined(__CYGWIN__)
168 #undef _XOPEN_SOURCE
169 #include <grp.h>
170 #define _XOPEN_SOURCE 600
171 #include "compat/cygwin.h"
172 #else
173 #undef _ALL_SOURCE /* AIX 5.3L defines a struct list with _ALL_SOURCE. */
174 #include <grp.h>
175 #define _ALL_SOURCE 1
176 #endif
177 #endif
179 /* used on Mac OS X */
180 #ifdef PRECOMPOSE_UNICODE
181 #include "compat/precompose_utf8.h"
182 #else
183 #define precompose_str(in,i_nfd2nfc)
184 #define precompose_argv(c,v)
185 #define probe_utf8_pathname_composition(a,b)
186 #endif
188 #ifdef MKDIR_WO_TRAILING_SLASH
189 #define mkdir(a,b) compat_mkdir_wo_trailing_slash((a),(b))
190 extern int compat_mkdir_wo_trailing_slash(const char*, mode_t);
191 #endif
193 #ifdef NO_STRUCT_ITIMERVAL
194 struct itimerval {
195 struct timeval it_interval;
196 struct timeval it_value;
198 #endif
200 #ifdef NO_SETITIMER
201 #define setitimer(which,value,ovalue)
202 #endif
204 #ifndef NO_LIBGEN_H
205 #include <libgen.h>
206 #else
207 #define basename gitbasename
208 extern char *gitbasename(char *);
209 #endif
211 #ifndef NO_ICONV
212 #include <iconv.h>
213 #endif
215 #ifndef NO_OPENSSL
216 #include <openssl/ssl.h>
217 #include <openssl/err.h>
218 #endif
220 /* On most systems <netdb.h> would have given us this, but
221 * not on some systems (e.g. z/OS).
223 #ifndef NI_MAXHOST
224 #define NI_MAXHOST 1025
225 #endif
227 #ifndef NI_MAXSERV
228 #define NI_MAXSERV 32
229 #endif
231 /* On most systems <limits.h> would have given us this, but
232 * not on some systems (e.g. GNU/Hurd).
234 #ifndef PATH_MAX
235 #define PATH_MAX 4096
236 #endif
238 #ifndef PRIuMAX
239 #define PRIuMAX "llu"
240 #endif
242 #ifndef PRIu32
243 #define PRIu32 "u"
244 #endif
246 #ifndef PRIx32
247 #define PRIx32 "x"
248 #endif
250 #ifndef PRIo32
251 #define PRIo32 "o"
252 #endif
254 #ifndef PATH_SEP
255 #define PATH_SEP ':'
256 #endif
258 #ifdef HAVE_PATHS_H
259 #include <paths.h>
260 #endif
261 #ifndef _PATH_DEFPATH
262 #define _PATH_DEFPATH "/usr/local/bin:/usr/bin:/bin"
263 #endif
265 #ifndef STRIP_EXTENSION
266 #define STRIP_EXTENSION ""
267 #endif
269 #ifndef has_dos_drive_prefix
270 #define has_dos_drive_prefix(path) 0
271 #endif
273 #ifndef is_dir_sep
274 #define is_dir_sep(c) ((c) == '/')
275 #endif
277 #ifndef find_last_dir_sep
278 #define find_last_dir_sep(path) strrchr(path, '/')
279 #endif
281 #if defined(__HP_cc) && (__HP_cc >= 61000)
282 #define NORETURN __attribute__((noreturn))
283 #define NORETURN_PTR
284 #elif defined(__GNUC__) && !defined(NO_NORETURN)
285 #define NORETURN __attribute__((__noreturn__))
286 #define NORETURN_PTR __attribute__((__noreturn__))
287 #elif defined(_MSC_VER)
288 #define NORETURN __declspec(noreturn)
289 #define NORETURN_PTR
290 #else
291 #define NORETURN
292 #define NORETURN_PTR
293 #ifndef __attribute__
294 #define __attribute__(x)
295 #endif
296 #endif
298 #include "compat/bswap.h"
300 #ifdef USE_WILDMATCH
301 #include "wildmatch.h"
302 #define FNM_PATHNAME WM_PATHNAME
303 #define FNM_CASEFOLD WM_CASEFOLD
304 #define FNM_NOMATCH WM_NOMATCH
305 static inline int fnmatch(const char *pattern, const char *string, int flags)
307 return wildmatch(pattern, string, flags, NULL);
309 #endif
311 /* General helper functions */
312 extern void vreportf(const char *prefix, const char *err, va_list params);
313 extern void vwritef(int fd, const char *prefix, const char *err, va_list params);
314 extern NORETURN void usage(const char *err);
315 extern NORETURN void usagef(const char *err, ...) __attribute__((format (printf, 1, 2)));
316 extern NORETURN void die(const char *err, ...) __attribute__((format (printf, 1, 2)));
317 extern NORETURN void die_errno(const char *err, ...) __attribute__((format (printf, 1, 2)));
318 extern int error(const char *err, ...) __attribute__((format (printf, 1, 2)));
319 extern void warning(const char *err, ...) __attribute__((format (printf, 1, 2)));
322 * Let callers be aware of the constant return value; this can help
323 * gcc with -Wuninitialized analysis. We restrict this trick to gcc, though,
324 * because some compilers may not support variadic macros. Since we're only
325 * trying to help gcc, anyway, it's OK; other compilers will fall back to
326 * using the function as usual.
328 #if defined(__GNUC__) && ! defined(__clang__)
329 #define error(...) (error(__VA_ARGS__), -1)
330 #endif
332 extern void set_die_routine(NORETURN_PTR void (*routine)(const char *err, va_list params));
333 extern void set_error_routine(void (*routine)(const char *err, va_list params));
335 extern int prefixcmp(const char *str, const char *prefix);
336 extern int suffixcmp(const char *str, const char *suffix);
338 static inline const char *skip_prefix(const char *str, const char *prefix)
340 size_t len = strlen(prefix);
341 return strncmp(str, prefix, len) ? NULL : str + len;
344 #if defined(NO_MMAP) || defined(USE_WIN32_MMAP)
346 #ifndef PROT_READ
347 #define PROT_READ 1
348 #define PROT_WRITE 2
349 #define MAP_PRIVATE 1
350 #endif
352 #define mmap git_mmap
353 #define munmap git_munmap
354 extern void *git_mmap(void *start, size_t length, int prot, int flags, int fd, off_t offset);
355 extern int git_munmap(void *start, size_t length);
357 #else /* NO_MMAP || USE_WIN32_MMAP */
359 #include <sys/mman.h>
361 #endif /* NO_MMAP || USE_WIN32_MMAP */
363 #ifdef NO_MMAP
365 /* This value must be multiple of (pagesize * 2) */
366 #define DEFAULT_PACKED_GIT_WINDOW_SIZE (1 * 1024 * 1024)
368 #else /* NO_MMAP */
370 /* This value must be multiple of (pagesize * 2) */
371 #define DEFAULT_PACKED_GIT_WINDOW_SIZE \
372 (sizeof(void*) >= 8 \
373 ? 1 * 1024 * 1024 * 1024 \
374 : 32 * 1024 * 1024)
376 #endif /* NO_MMAP */
378 #ifndef MAP_FAILED
379 #define MAP_FAILED ((void *)-1)
380 #endif
382 #ifdef NO_ST_BLOCKS_IN_STRUCT_STAT
383 #define on_disk_bytes(st) ((st).st_size)
384 #else
385 #define on_disk_bytes(st) ((st).st_blocks * 512)
386 #endif
388 #define DEFAULT_PACKED_GIT_LIMIT \
389 ((1024L * 1024L) * (sizeof(void*) >= 8 ? 8192 : 256))
391 #ifdef NO_PREAD
392 #define pread git_pread
393 extern ssize_t git_pread(int fd, void *buf, size_t count, off_t offset);
394 #endif
396 * Forward decl that will remind us if its twin in cache.h changes.
397 * This function is used in compat/pread.c. But we can't include
398 * cache.h there.
400 extern ssize_t read_in_full(int fd, void *buf, size_t count);
402 #ifdef NO_SETENV
403 #define setenv gitsetenv
404 extern int gitsetenv(const char *, const char *, int);
405 #endif
407 #ifdef NO_MKDTEMP
408 #define mkdtemp gitmkdtemp
409 extern char *gitmkdtemp(char *);
410 #endif
412 #ifdef NO_MKSTEMPS
413 #define mkstemps gitmkstemps
414 extern int gitmkstemps(char *, int);
415 #endif
417 #ifdef NO_UNSETENV
418 #define unsetenv gitunsetenv
419 extern void gitunsetenv(const char *);
420 #endif
422 #ifdef NO_STRCASESTR
423 #define strcasestr gitstrcasestr
424 extern char *gitstrcasestr(const char *haystack, const char *needle);
425 #endif
427 #ifdef NO_STRLCPY
428 #define strlcpy gitstrlcpy
429 extern size_t gitstrlcpy(char *, const char *, size_t);
430 #endif
432 #ifdef NO_STRTOUMAX
433 #define strtoumax gitstrtoumax
434 extern uintmax_t gitstrtoumax(const char *, char **, int);
435 #define strtoimax gitstrtoimax
436 extern intmax_t gitstrtoimax(const char *, char **, int);
437 #endif
439 #ifdef NO_HSTRERROR
440 #define hstrerror githstrerror
441 extern const char *githstrerror(int herror);
442 #endif
444 #ifdef NO_MEMMEM
445 #define memmem gitmemmem
446 void *gitmemmem(const void *haystack, size_t haystacklen,
447 const void *needle, size_t needlelen);
448 #endif
450 #ifdef NO_GETPAGESIZE
451 #define getpagesize() sysconf(_SC_PAGESIZE)
452 #endif
454 #ifdef FREAD_READS_DIRECTORIES
455 #ifdef fopen
456 #undef fopen
457 #endif
458 #define fopen(a,b) git_fopen(a,b)
459 extern FILE *git_fopen(const char*, const char*);
460 #endif
462 #ifdef SNPRINTF_RETURNS_BOGUS
463 #define snprintf git_snprintf
464 extern int git_snprintf(char *str, size_t maxsize,
465 const char *format, ...);
466 #define vsnprintf git_vsnprintf
467 extern int git_vsnprintf(char *str, size_t maxsize,
468 const char *format, va_list ap);
469 #endif
471 #ifdef __GLIBC_PREREQ
472 #if __GLIBC_PREREQ(2, 1)
473 #define HAVE_STRCHRNUL
474 #define HAVE_MEMPCPY
475 #endif
476 #endif
478 #ifndef HAVE_STRCHRNUL
479 #define strchrnul gitstrchrnul
480 static inline char *gitstrchrnul(const char *s, int c)
482 while (*s && *s != c)
483 s++;
484 return (char *)s;
486 #endif
488 #ifndef HAVE_MEMPCPY
489 #define mempcpy gitmempcpy
490 static inline void *gitmempcpy(void *dest, const void *src, size_t n)
492 return (char *)memcpy(dest, src, n) + n;
494 #endif
496 #ifdef NO_INET_PTON
497 int inet_pton(int af, const char *src, void *dst);
498 #endif
500 #ifdef NO_INET_NTOP
501 const char *inet_ntop(int af, const void *src, char *dst, size_t size);
502 #endif
504 extern void release_pack_memory(size_t, int);
506 typedef void (*try_to_free_t)(size_t);
507 extern try_to_free_t set_try_to_free_routine(try_to_free_t);
509 extern char *xstrdup(const char *str);
510 extern void *xmalloc(size_t size);
511 extern void *xmallocz(size_t size);
512 extern void *xmemdupz(const void *data, size_t len);
513 extern char *xstrndup(const char *str, size_t len);
514 extern void *xrealloc(void *ptr, size_t size);
515 extern void *xcalloc(size_t nmemb, size_t size);
516 extern void *xmmap(void *start, size_t length, int prot, int flags, int fd, off_t offset);
517 extern ssize_t xread(int fd, void *buf, size_t len);
518 extern ssize_t xwrite(int fd, const void *buf, size_t len);
519 extern int xdup(int fd);
520 extern FILE *xfdopen(int fd, const char *mode);
521 extern int xmkstemp(char *template);
522 extern int xmkstemp_mode(char *template, int mode);
523 extern int odb_mkstemp(char *template, size_t limit, const char *pattern);
524 extern int odb_pack_keep(char *name, size_t namesz, unsigned char *sha1);
526 static inline size_t xsize_t(off_t len)
528 if (len > (size_t) len)
529 die("Cannot handle files this big");
530 return (size_t)len;
533 static inline int has_extension(const char *filename, const char *ext)
535 size_t len = strlen(filename);
536 size_t extlen = strlen(ext);
537 return len > extlen && !memcmp(filename + len - extlen, ext, extlen);
540 /* in ctype.c, for kwset users */
541 extern const char tolower_trans_tbl[256];
543 /* Sane ctype - no locale, and works with signed chars */
544 #undef isascii
545 #undef isspace
546 #undef isdigit
547 #undef isalpha
548 #undef isalnum
549 #undef isprint
550 #undef islower
551 #undef isupper
552 #undef tolower
553 #undef toupper
554 #undef iscntrl
555 #undef ispunct
556 #undef isxdigit
558 extern const unsigned char sane_ctype[256];
559 #define GIT_SPACE 0x01
560 #define GIT_DIGIT 0x02
561 #define GIT_ALPHA 0x04
562 #define GIT_GLOB_SPECIAL 0x08
563 #define GIT_REGEX_SPECIAL 0x10
564 #define GIT_PATHSPEC_MAGIC 0x20
565 #define GIT_CNTRL 0x40
566 #define GIT_PUNCT 0x80
567 #define sane_istest(x,mask) ((sane_ctype[(unsigned char)(x)] & (mask)) != 0)
568 #define isascii(x) (((x) & ~0x7f) == 0)
569 #define isspace(x) sane_istest(x,GIT_SPACE)
570 #define isdigit(x) sane_istest(x,GIT_DIGIT)
571 #define isalpha(x) sane_istest(x,GIT_ALPHA)
572 #define isalnum(x) sane_istest(x,GIT_ALPHA | GIT_DIGIT)
573 #define isprint(x) ((x) >= 0x20 && (x) <= 0x7e)
574 #define islower(x) sane_iscase(x, 1)
575 #define isupper(x) sane_iscase(x, 0)
576 #define is_glob_special(x) sane_istest(x,GIT_GLOB_SPECIAL)
577 #define is_regex_special(x) sane_istest(x,GIT_GLOB_SPECIAL | GIT_REGEX_SPECIAL)
578 #define iscntrl(x) (sane_istest(x,GIT_CNTRL))
579 #define ispunct(x) sane_istest(x, GIT_PUNCT | GIT_REGEX_SPECIAL | \
580 GIT_GLOB_SPECIAL | GIT_PATHSPEC_MAGIC)
581 #define isxdigit(x) (hexval_table[x] != -1)
582 #define tolower(x) sane_case((unsigned char)(x), 0x20)
583 #define toupper(x) sane_case((unsigned char)(x), 0)
584 #define is_pathspec_magic(x) sane_istest(x,GIT_PATHSPEC_MAGIC)
586 static inline int sane_case(int x, int high)
588 if (sane_istest(x, GIT_ALPHA))
589 x = (x & ~0x20) | high;
590 return x;
593 static inline int sane_iscase(int x, int is_lower)
595 if (!sane_istest(x, GIT_ALPHA))
596 return 0;
598 if (is_lower)
599 return (x & 0x20) != 0;
600 else
601 return (x & 0x20) == 0;
604 static inline int strtoul_ui(char const *s, int base, unsigned int *result)
606 unsigned long ul;
607 char *p;
609 errno = 0;
610 ul = strtoul(s, &p, base);
611 if (errno || *p || p == s || (unsigned int) ul != ul)
612 return -1;
613 *result = ul;
614 return 0;
617 static inline int strtol_i(char const *s, int base, int *result)
619 long ul;
620 char *p;
622 errno = 0;
623 ul = strtol(s, &p, base);
624 if (errno || *p || p == s || (int) ul != ul)
625 return -1;
626 *result = ul;
627 return 0;
630 #ifdef INTERNAL_QSORT
631 void git_qsort(void *base, size_t nmemb, size_t size,
632 int(*compar)(const void *, const void *));
633 #define qsort git_qsort
634 #endif
636 #ifndef DIR_HAS_BSD_GROUP_SEMANTICS
637 # define FORCE_DIR_SET_GID S_ISGID
638 #else
639 # define FORCE_DIR_SET_GID 0
640 #endif
642 #ifdef NO_NSEC
643 #undef USE_NSEC
644 #define ST_CTIME_NSEC(st) 0
645 #define ST_MTIME_NSEC(st) 0
646 #else
647 #ifdef USE_ST_TIMESPEC
648 #define ST_CTIME_NSEC(st) ((unsigned int)((st).st_ctimespec.tv_nsec))
649 #define ST_MTIME_NSEC(st) ((unsigned int)((st).st_mtimespec.tv_nsec))
650 #else
651 #define ST_CTIME_NSEC(st) ((unsigned int)((st).st_ctim.tv_nsec))
652 #define ST_MTIME_NSEC(st) ((unsigned int)((st).st_mtim.tv_nsec))
653 #endif
654 #endif
656 #ifdef UNRELIABLE_FSTAT
657 #define fstat_is_reliable() 0
658 #else
659 #define fstat_is_reliable() 1
660 #endif
662 #ifndef va_copy
664 * Since an obvious implementation of va_list would be to make it a
665 * pointer into the stack frame, a simple assignment will work on
666 * many systems. But let's try to be more portable.
668 #ifdef __va_copy
669 #define va_copy(dst, src) __va_copy(dst, src)
670 #else
671 #define va_copy(dst, src) ((dst) = (src))
672 #endif
673 #endif
676 * Preserves errno, prints a message, but gives no warning for ENOENT.
677 * Always returns the return value of unlink(2).
679 int unlink_or_warn(const char *path);
681 * Likewise for rmdir(2).
683 int rmdir_or_warn(const char *path);
685 * Calls the correct function out of {unlink,rmdir}_or_warn based on
686 * the supplied file mode.
688 int remove_or_warn(unsigned int mode, const char *path);
691 * Call access(2), but warn for any error except "missing file"
692 * (ENOENT or ENOTDIR).
694 int access_or_warn(const char *path, int mode);
695 int access_or_die(const char *path, int mode);
697 /* Warn on an inaccessible file that ought to be accessible */
698 void warn_on_inaccessible(const char *path);
700 /* Get the passwd entry for the UID of the current process. */
701 struct passwd *xgetpwuid_self(void);
703 #endif