remote-hg: split bookmark handling
[alt-git.git] / git-compat-util.h
blob90e037203879f6ba91403ae5371f18910206b580
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 #if defined(__CYGWIN__)
167 #undef _XOPEN_SOURCE
168 #include <grp.h>
169 #define _XOPEN_SOURCE 600
170 #include "compat/cygwin.h"
171 #else
172 #undef _ALL_SOURCE /* AIX 5.3L defines a struct list with _ALL_SOURCE. */
173 #include <grp.h>
174 #define _ALL_SOURCE 1
175 #endif
176 #endif
178 /* used on Mac OS X */
179 #ifdef PRECOMPOSE_UNICODE
180 #include "compat/precompose_utf8.h"
181 #else
182 #define precompose_str(in,i_nfd2nfc)
183 #define precompose_argv(c,v)
184 #define probe_utf8_pathname_composition(a,b)
185 #endif
187 #ifdef MKDIR_WO_TRAILING_SLASH
188 #define mkdir(a,b) compat_mkdir_wo_trailing_slash((a),(b))
189 extern int compat_mkdir_wo_trailing_slash(const char*, mode_t);
190 #endif
192 #ifdef NO_STRUCT_ITIMERVAL
193 struct itimerval {
194 struct timeval it_interval;
195 struct timeval it_value;
197 #endif
199 #ifdef NO_SETITIMER
200 #define setitimer(which,value,ovalue)
201 #endif
203 #ifndef NO_LIBGEN_H
204 #include <libgen.h>
205 #else
206 #define basename gitbasename
207 extern char *gitbasename(char *);
208 #endif
210 #ifndef NO_ICONV
211 #include <iconv.h>
212 #endif
214 #ifndef NO_OPENSSL
215 #include <openssl/ssl.h>
216 #include <openssl/err.h>
217 #endif
219 /* On most systems <netdb.h> would have given us this, but
220 * not on some systems (e.g. z/OS).
222 #ifndef NI_MAXHOST
223 #define NI_MAXHOST 1025
224 #endif
226 #ifndef NI_MAXSERV
227 #define NI_MAXSERV 32
228 #endif
230 /* On most systems <limits.h> would have given us this, but
231 * not on some systems (e.g. GNU/Hurd).
233 #ifndef PATH_MAX
234 #define PATH_MAX 4096
235 #endif
237 #ifndef PRIuMAX
238 #define PRIuMAX "llu"
239 #endif
241 #ifndef PRIu32
242 #define PRIu32 "u"
243 #endif
245 #ifndef PRIx32
246 #define PRIx32 "x"
247 #endif
249 #ifndef PRIo32
250 #define PRIo32 "o"
251 #endif
253 #ifndef PATH_SEP
254 #define PATH_SEP ':'
255 #endif
257 #ifdef HAVE_PATHS_H
258 #include <paths.h>
259 #endif
260 #ifndef _PATH_DEFPATH
261 #define _PATH_DEFPATH "/usr/local/bin:/usr/bin:/bin"
262 #endif
264 #ifndef STRIP_EXTENSION
265 #define STRIP_EXTENSION ""
266 #endif
268 #ifndef has_dos_drive_prefix
269 #define has_dos_drive_prefix(path) 0
270 #endif
272 #ifndef is_dir_sep
273 #define is_dir_sep(c) ((c) == '/')
274 #endif
276 #ifndef find_last_dir_sep
277 #define find_last_dir_sep(path) strrchr(path, '/')
278 #endif
280 #if defined(__HP_cc) && (__HP_cc >= 61000)
281 #define NORETURN __attribute__((noreturn))
282 #define NORETURN_PTR
283 #elif defined(__GNUC__) && !defined(NO_NORETURN)
284 #define NORETURN __attribute__((__noreturn__))
285 #define NORETURN_PTR __attribute__((__noreturn__))
286 #elif defined(_MSC_VER)
287 #define NORETURN __declspec(noreturn)
288 #define NORETURN_PTR
289 #else
290 #define NORETURN
291 #define NORETURN_PTR
292 #ifndef __attribute__
293 #define __attribute__(x)
294 #endif
295 #endif
297 #include "compat/bswap.h"
299 #ifdef USE_WILDMATCH
300 #include "wildmatch.h"
301 #define FNM_PATHNAME WM_PATHNAME
302 #define FNM_CASEFOLD WM_CASEFOLD
303 #define FNM_NOMATCH WM_NOMATCH
304 static inline int fnmatch(const char *pattern, const char *string, int flags)
306 return wildmatch(pattern, string, flags, NULL);
308 #endif
310 /* General helper functions */
311 extern void vreportf(const char *prefix, const char *err, va_list params);
312 extern void vwritef(int fd, const char *prefix, const char *err, va_list params);
313 extern NORETURN void usage(const char *err);
314 extern NORETURN void usagef(const char *err, ...) __attribute__((format (printf, 1, 2)));
315 extern NORETURN void die(const char *err, ...) __attribute__((format (printf, 1, 2)));
316 extern NORETURN void die_errno(const char *err, ...) __attribute__((format (printf, 1, 2)));
317 extern int error(const char *err, ...) __attribute__((format (printf, 1, 2)));
318 extern void warning(const char *err, ...) __attribute__((format (printf, 1, 2)));
321 * Let callers be aware of the constant return value; this can help
322 * gcc with -Wuninitialized analysis. We restrict this trick to gcc, though,
323 * because some compilers may not support variadic macros. Since we're only
324 * trying to help gcc, anyway, it's OK; other compilers will fall back to
325 * using the function as usual.
327 #if defined(__GNUC__) && ! defined(__clang__)
328 #define error(...) (error(__VA_ARGS__), -1)
329 #endif
331 extern void set_die_routine(NORETURN_PTR void (*routine)(const char *err, va_list params));
332 extern void set_error_routine(void (*routine)(const char *err, va_list params));
334 extern int prefixcmp(const char *str, const char *prefix);
335 extern int suffixcmp(const char *str, const char *suffix);
337 static inline const char *skip_prefix(const char *str, const char *prefix)
339 size_t len = strlen(prefix);
340 return strncmp(str, prefix, len) ? NULL : str + len;
343 #if defined(NO_MMAP) || defined(USE_WIN32_MMAP)
345 #ifndef PROT_READ
346 #define PROT_READ 1
347 #define PROT_WRITE 2
348 #define MAP_PRIVATE 1
349 #endif
351 #define mmap git_mmap
352 #define munmap git_munmap
353 extern void *git_mmap(void *start, size_t length, int prot, int flags, int fd, off_t offset);
354 extern int git_munmap(void *start, size_t length);
356 #else /* NO_MMAP || USE_WIN32_MMAP */
358 #include <sys/mman.h>
360 #endif /* NO_MMAP || USE_WIN32_MMAP */
362 #ifdef NO_MMAP
364 /* This value must be multiple of (pagesize * 2) */
365 #define DEFAULT_PACKED_GIT_WINDOW_SIZE (1 * 1024 * 1024)
367 #else /* NO_MMAP */
369 /* This value must be multiple of (pagesize * 2) */
370 #define DEFAULT_PACKED_GIT_WINDOW_SIZE \
371 (sizeof(void*) >= 8 \
372 ? 1 * 1024 * 1024 * 1024 \
373 : 32 * 1024 * 1024)
375 #endif /* NO_MMAP */
377 #ifndef MAP_FAILED
378 #define MAP_FAILED ((void *)-1)
379 #endif
381 #ifdef NO_ST_BLOCKS_IN_STRUCT_STAT
382 #define on_disk_bytes(st) ((st).st_size)
383 #else
384 #define on_disk_bytes(st) ((st).st_blocks * 512)
385 #endif
387 #define DEFAULT_PACKED_GIT_LIMIT \
388 ((1024L * 1024L) * (sizeof(void*) >= 8 ? 8192 : 256))
390 #ifdef NO_PREAD
391 #define pread git_pread
392 extern ssize_t git_pread(int fd, void *buf, size_t count, off_t offset);
393 #endif
395 * Forward decl that will remind us if its twin in cache.h changes.
396 * This function is used in compat/pread.c. But we can't include
397 * cache.h there.
399 extern ssize_t read_in_full(int fd, void *buf, size_t count);
401 #ifdef NO_SETENV
402 #define setenv gitsetenv
403 extern int gitsetenv(const char *, const char *, int);
404 #endif
406 #ifdef NO_MKDTEMP
407 #define mkdtemp gitmkdtemp
408 extern char *gitmkdtemp(char *);
409 #endif
411 #ifdef NO_MKSTEMPS
412 #define mkstemps gitmkstemps
413 extern int gitmkstemps(char *, int);
414 #endif
416 #ifdef NO_UNSETENV
417 #define unsetenv gitunsetenv
418 extern void gitunsetenv(const char *);
419 #endif
421 #ifdef NO_STRCASESTR
422 #define strcasestr gitstrcasestr
423 extern char *gitstrcasestr(const char *haystack, const char *needle);
424 #endif
426 #ifdef NO_STRLCPY
427 #define strlcpy gitstrlcpy
428 extern size_t gitstrlcpy(char *, const char *, size_t);
429 #endif
431 #ifdef NO_STRTOUMAX
432 #define strtoumax gitstrtoumax
433 extern uintmax_t gitstrtoumax(const char *, char **, int);
434 #define strtoimax gitstrtoimax
435 extern intmax_t gitstrtoimax(const char *, char **, int);
436 #endif
438 #ifdef NO_HSTRERROR
439 #define hstrerror githstrerror
440 extern const char *githstrerror(int herror);
441 #endif
443 #ifdef NO_MEMMEM
444 #define memmem gitmemmem
445 void *gitmemmem(const void *haystack, size_t haystacklen,
446 const void *needle, size_t needlelen);
447 #endif
449 #ifdef NO_GETPAGESIZE
450 #define getpagesize() sysconf(_SC_PAGESIZE)
451 #endif
453 #ifdef FREAD_READS_DIRECTORIES
454 #ifdef fopen
455 #undef fopen
456 #endif
457 #define fopen(a,b) git_fopen(a,b)
458 extern FILE *git_fopen(const char*, const char*);
459 #endif
461 #ifdef SNPRINTF_RETURNS_BOGUS
462 #define snprintf git_snprintf
463 extern int git_snprintf(char *str, size_t maxsize,
464 const char *format, ...);
465 #define vsnprintf git_vsnprintf
466 extern int git_vsnprintf(char *str, size_t maxsize,
467 const char *format, va_list ap);
468 #endif
470 #ifdef __GLIBC_PREREQ
471 #if __GLIBC_PREREQ(2, 1)
472 #define HAVE_STRCHRNUL
473 #define HAVE_MEMPCPY
474 #endif
475 #endif
477 #ifndef HAVE_STRCHRNUL
478 #define strchrnul gitstrchrnul
479 static inline char *gitstrchrnul(const char *s, int c)
481 while (*s && *s != c)
482 s++;
483 return (char *)s;
485 #endif
487 #ifndef HAVE_MEMPCPY
488 #define mempcpy gitmempcpy
489 static inline void *gitmempcpy(void *dest, const void *src, size_t n)
491 return (char *)memcpy(dest, src, n) + n;
493 #endif
495 #ifdef NO_INET_PTON
496 int inet_pton(int af, const char *src, void *dst);
497 #endif
499 #ifdef NO_INET_NTOP
500 const char *inet_ntop(int af, const void *src, char *dst, size_t size);
501 #endif
503 extern void release_pack_memory(size_t, int);
505 typedef void (*try_to_free_t)(size_t);
506 extern try_to_free_t set_try_to_free_routine(try_to_free_t);
508 extern char *xstrdup(const char *str);
509 extern void *xmalloc(size_t size);
510 extern void *xmallocz(size_t size);
511 extern void *xmemdupz(const void *data, size_t len);
512 extern char *xstrndup(const char *str, size_t len);
513 extern void *xrealloc(void *ptr, size_t size);
514 extern void *xcalloc(size_t nmemb, size_t size);
515 extern void *xmmap(void *start, size_t length, int prot, int flags, int fd, off_t offset);
516 extern ssize_t xread(int fd, void *buf, size_t len);
517 extern ssize_t xwrite(int fd, const void *buf, size_t len);
518 extern int xdup(int fd);
519 extern FILE *xfdopen(int fd, const char *mode);
520 extern int xmkstemp(char *template);
521 extern int xmkstemp_mode(char *template, int mode);
522 extern int odb_mkstemp(char *template, size_t limit, const char *pattern);
523 extern int odb_pack_keep(char *name, size_t namesz, unsigned char *sha1);
525 static inline size_t xsize_t(off_t len)
527 if (len > (size_t) len)
528 die("Cannot handle files this big");
529 return (size_t)len;
532 static inline int has_extension(const char *filename, const char *ext)
534 size_t len = strlen(filename);
535 size_t extlen = strlen(ext);
536 return len > extlen && !memcmp(filename + len - extlen, ext, extlen);
539 /* in ctype.c, for kwset users */
540 extern const char tolower_trans_tbl[256];
542 /* Sane ctype - no locale, and works with signed chars */
543 #undef isascii
544 #undef isspace
545 #undef isdigit
546 #undef isalpha
547 #undef isalnum
548 #undef isprint
549 #undef islower
550 #undef isupper
551 #undef tolower
552 #undef toupper
553 #undef iscntrl
554 #undef ispunct
555 #undef isxdigit
557 extern const unsigned char sane_ctype[256];
558 #define GIT_SPACE 0x01
559 #define GIT_DIGIT 0x02
560 #define GIT_ALPHA 0x04
561 #define GIT_GLOB_SPECIAL 0x08
562 #define GIT_REGEX_SPECIAL 0x10
563 #define GIT_PATHSPEC_MAGIC 0x20
564 #define GIT_CNTRL 0x40
565 #define GIT_PUNCT 0x80
566 #define sane_istest(x,mask) ((sane_ctype[(unsigned char)(x)] & (mask)) != 0)
567 #define isascii(x) (((x) & ~0x7f) == 0)
568 #define isspace(x) sane_istest(x,GIT_SPACE)
569 #define isdigit(x) sane_istest(x,GIT_DIGIT)
570 #define isalpha(x) sane_istest(x,GIT_ALPHA)
571 #define isalnum(x) sane_istest(x,GIT_ALPHA | GIT_DIGIT)
572 #define isprint(x) ((x) >= 0x20 && (x) <= 0x7e)
573 #define islower(x) sane_iscase(x, 1)
574 #define isupper(x) sane_iscase(x, 0)
575 #define is_glob_special(x) sane_istest(x,GIT_GLOB_SPECIAL)
576 #define is_regex_special(x) sane_istest(x,GIT_GLOB_SPECIAL | GIT_REGEX_SPECIAL)
577 #define iscntrl(x) (sane_istest(x,GIT_CNTRL))
578 #define ispunct(x) sane_istest(x, GIT_PUNCT | GIT_REGEX_SPECIAL | \
579 GIT_GLOB_SPECIAL | GIT_PATHSPEC_MAGIC)
580 #define isxdigit(x) (hexval_table[x] != -1)
581 #define tolower(x) sane_case((unsigned char)(x), 0x20)
582 #define toupper(x) sane_case((unsigned char)(x), 0)
583 #define is_pathspec_magic(x) sane_istest(x,GIT_PATHSPEC_MAGIC)
585 static inline int sane_case(int x, int high)
587 if (sane_istest(x, GIT_ALPHA))
588 x = (x & ~0x20) | high;
589 return x;
592 static inline int sane_iscase(int x, int is_lower)
594 if (!sane_istest(x, GIT_ALPHA))
595 return 0;
597 if (is_lower)
598 return (x & 0x20) != 0;
599 else
600 return (x & 0x20) == 0;
603 static inline int strtoul_ui(char const *s, int base, unsigned int *result)
605 unsigned long ul;
606 char *p;
608 errno = 0;
609 ul = strtoul(s, &p, base);
610 if (errno || *p || p == s || (unsigned int) ul != ul)
611 return -1;
612 *result = ul;
613 return 0;
616 static inline int strtol_i(char const *s, int base, int *result)
618 long ul;
619 char *p;
621 errno = 0;
622 ul = strtol(s, &p, base);
623 if (errno || *p || p == s || (int) ul != ul)
624 return -1;
625 *result = ul;
626 return 0;
629 #ifdef INTERNAL_QSORT
630 void git_qsort(void *base, size_t nmemb, size_t size,
631 int(*compar)(const void *, const void *));
632 #define qsort git_qsort
633 #endif
635 #ifndef DIR_HAS_BSD_GROUP_SEMANTICS
636 # define FORCE_DIR_SET_GID S_ISGID
637 #else
638 # define FORCE_DIR_SET_GID 0
639 #endif
641 #ifdef NO_NSEC
642 #undef USE_NSEC
643 #define ST_CTIME_NSEC(st) 0
644 #define ST_MTIME_NSEC(st) 0
645 #else
646 #ifdef USE_ST_TIMESPEC
647 #define ST_CTIME_NSEC(st) ((unsigned int)((st).st_ctimespec.tv_nsec))
648 #define ST_MTIME_NSEC(st) ((unsigned int)((st).st_mtimespec.tv_nsec))
649 #else
650 #define ST_CTIME_NSEC(st) ((unsigned int)((st).st_ctim.tv_nsec))
651 #define ST_MTIME_NSEC(st) ((unsigned int)((st).st_mtim.tv_nsec))
652 #endif
653 #endif
655 #ifdef UNRELIABLE_FSTAT
656 #define fstat_is_reliable() 0
657 #else
658 #define fstat_is_reliable() 1
659 #endif
661 #ifndef va_copy
663 * Since an obvious implementation of va_list would be to make it a
664 * pointer into the stack frame, a simple assignment will work on
665 * many systems. But let's try to be more portable.
667 #ifdef __va_copy
668 #define va_copy(dst, src) __va_copy(dst, src)
669 #else
670 #define va_copy(dst, src) ((dst) = (src))
671 #endif
672 #endif
675 * Preserves errno, prints a message, but gives no warning for ENOENT.
676 * Always returns the return value of unlink(2).
678 int unlink_or_warn(const char *path);
680 * Likewise for rmdir(2).
682 int rmdir_or_warn(const char *path);
684 * Calls the correct function out of {unlink,rmdir}_or_warn based on
685 * the supplied file mode.
687 int remove_or_warn(unsigned int mode, const char *path);
690 * Call access(2), but warn for any error except "missing file"
691 * (ENOENT or ENOTDIR).
693 int access_or_warn(const char *path, int mode);
694 int access_or_die(const char *path, int mode);
696 /* Warn on an inaccessible file that ought to be accessible */
697 void warn_on_inaccessible(const char *path);
699 /* Get the passwd entry for the UID of the current process. */
700 struct passwd *xgetpwuid_self(void);
702 #endif