Git 1.7.12.4
[git/git.git] / git-compat-util.h
CommitLineData
4050c0df
JH
1#ifndef GIT_COMPAT_UTIL_H
2#define GIT_COMPAT_UTIL_H
3
b97e9116
MW
4#define _FILE_OFFSET_BITS 64
5
8f1d2e6f 6#ifndef FLEX_ARRAY
8e973991
JH
7/*
8 * See if our compiler is known to support flexible array members.
9 */
203ee91f 10#if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L) && (!defined(__SUNPRO_C) || (__SUNPRO_C > 0x580))
8e973991
JH
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
19
20/*
21 * Otherwise, default to safer but a bit wasteful traditional style
22 */
23#ifndef FLEX_ARRAY
24# define FLEX_ARRAY 1
8f1d2e6f
JH
25#endif
26#endif
27
b4f2a6ac 28#define ARRAY_SIZE(x) (sizeof(x)/sizeof(x[0]))
f630cfda 29#define bitsizeof(x) (CHAR_BIT * sizeof(x))
b4f2a6ac 30
c03c8315
EFL
31#define maximum_signed_value_of_type(a) \
32 (INTMAX_MAX >> (bitsizeof(intmax_t) - bitsizeof(a)))
33
1368f650
JN
34#define maximum_unsigned_value_of_type(a) \
35 (UINTMAX_MAX >> (bitsizeof(uintmax_t) - bitsizeof(a)))
36
c03c8315
EFL
37/*
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.
40 *
41 * Requires: a >= 0, typeof(a) equals typeof(b)
42 */
43#define signed_add_overflows(a, b) \
44 ((b) > maximum_signed_value_of_type(a) - (a))
45
1368f650
JN
46#define unsigned_add_overflows(a, b) \
47 ((b) > maximum_unsigned_value_of_type(a) - (a))
48
8723f216
NP
49#ifdef __GNUC__
50#define TYPEOF(x) (__typeof__(x))
51#else
52#define TYPEOF(x)
53#endif
54
f630cfda 55#define MSB(x, bits) ((x) & TYPEOF(x)(~0ULL << (bitsizeof(x) - (bits))))
db7244bd 56#define HAS_MULTI_BITS(i) ((i) & ((i) - 1)) /* checks if an integer has more than 1 bit set */
8723f216 57
98cb6f30
PH
58#define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d))
59
cf606e3d
AW
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)
62
4cb18a49
BC
63#if defined(__sun__)
64 /*
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.
70 */
71# if __STDC_VERSION__ - 0 >= 199901L
72# define _XOPEN_SOURCE 600
73# else
74# define _XOPEN_SOURCE 500
75# endif
6555b196 76#elif !defined(__APPLE__) && !defined(__FreeBSD__) && !defined(__USLC__) && \
761a889a 77 !defined(_M_UNIX) && !defined(__sgi) && !defined(__DragonFly__)
85023577
JH
78#define _XOPEN_SOURCE 600 /* glibc2 and AIX 5.3L need 500, OpenBSD needs 600 for S_ISLNK() */
79#define _XOPEN_SOURCE_EXTENDED 1 /* AIX 5.3L needs this */
c902c9a6 80#endif
fb952206
JR
81#define _ALL_SOURCE 1
82#define _GNU_SOURCE 1
83#define _BSD_SOURCE 1
9a695fbf 84#define _NETBSD_SOURCE 1
9398b859 85#define _SGI_SOURCE 1
85023577 86
435bdf8c
MSO
87#ifdef WIN32 /* Both MinGW and MSVC */
88#define WIN32_LEAN_AND_MEAN /* stops windows.h including winsock.h */
89#include <winsock2.h>
90#include <windows.h>
91#endif
92
4050c0df
JH
93#include <unistd.h>
94#include <stdio.h>
95#include <sys/stat.h>
96#include <fcntl.h>
97#include <stddef.h>
98#include <stdlib.h>
99#include <stdarg.h>
100#include <string.h>
101#include <errno.h>
102#include <limits.h>
103#include <sys/param.h>
4050c0df
JH
104#include <sys/types.h>
105#include <dirent.h>
85023577
JH
106#include <sys/time.h>
107#include <time.h>
108#include <signal.h>
85023577 109#include <fnmatch.h>
f4626df5
JS
110#include <assert.h>
111#include <regex.h>
112#include <utime.h>
088d8802 113#include <syslog.h>
2844923d 114#ifndef NO_SYS_POLL_H
fdc12114 115#include <sys/poll.h>
2844923d
MD
116#else
117#include <poll.h>
118#endif
cfc755d3
VR
119#if defined(__MINGW32__)
120/* pull in Windows compatibility stuff */
121#include "compat/mingw.h"
122#elif defined(_MSC_VER)
123#include "compat/msvc.h"
124#else
f4626df5 125#include <sys/wait.h>
ebae9ff9 126#include <sys/resource.h>
85023577 127#include <sys/socket.h>
80bbe72b 128#include <sys/ioctl.h>
eb80042c 129#include <termios.h>
2600973f 130#ifndef NO_SYS_SELECT_H
80bbe72b 131#include <sys/select.h>
2600973f 132#endif
85023577
JH
133#include <netinet/in.h>
134#include <netinet/tcp.h>
135#include <arpa/inet.h>
136#include <netdb.h>
137#include <pwd.h>
e2770979 138#include <sys/un.h>
2844923d 139#ifndef NO_INTTYPES_H
007e2ba6 140#include <inttypes.h>
2844923d
MD
141#else
142#include <stdint.h>
143#endif
41b20017
RJ
144#if defined(__CYGWIN__)
145#undef _XOPEN_SOURCE
146#include <grp.h>
147#define _XOPEN_SOURCE 600
adbc0b6b 148#include "compat/cygwin.h"
41b20017 149#else
fb952206 150#undef _ALL_SOURCE /* AIX 5.3L defines a struct list with _ALL_SOURCE. */
85023577 151#include <grp.h>
fb952206 152#define _ALL_SOURCE 1
41b20017 153#endif
d75f8e61 154#endif
85023577 155
76759c7d
TB
156/* used on Mac OS X */
157#ifdef PRECOMPOSE_UNICODE
158#include "compat/precompose_utf8.h"
159#else
160#define precompose_str(in,i_nfd2nfc)
161#define precompose_argv(c,v)
162#define probe_utf8_pathname_composition(a,b)
163#endif
164
e1c06886
DA
165#ifndef NO_LIBGEN_H
166#include <libgen.h>
167#else
168#define basename gitbasename
169extern char *gitbasename(char *);
170#endif
171
85023577
JH
172#ifndef NO_ICONV
173#include <iconv.h>
174#endif
4050c0df 175
684ec6c6
RS
176#ifndef NO_OPENSSL
177#include <openssl/ssl.h>
178#include <openssl/err.h>
179#endif
180
d0c2449f
JH
181/* On most systems <limits.h> would have given us this, but
182 * not on some systems (e.g. GNU/Hurd).
183 */
184#ifndef PATH_MAX
185#define PATH_MAX 4096
186#endif
187
c4001d92
SP
188#ifndef PRIuMAX
189#define PRIuMAX "llu"
190#endif
191
607bb3ff
JS
192#ifndef PRIu32
193#define PRIu32 "u"
194#endif
195
196#ifndef PRIx32
197#define PRIx32 "x"
198#endif
199
5418d96d
RJ
200#ifndef PRIo32
201#define PRIo32 "o"
202#endif
203
80ba074f
JS
204#ifndef PATH_SEP
205#define PATH_SEP ':'
206#endif
207
cb6a22c0
CW
208#ifdef HAVE_PATHS_H
209#include <paths.h>
210#endif
211#ifndef _PATH_DEFPATH
212#define _PATH_DEFPATH "/usr/local/bin:/usr/bin:/bin"
213#endif
214
23326d14
JS
215#ifndef STRIP_EXTENSION
216#define STRIP_EXTENSION ""
217#endif
218
25fe217b
JS
219#ifndef has_dos_drive_prefix
220#define has_dos_drive_prefix(path) 0
221#endif
222
223#ifndef is_dir_sep
224#define is_dir_sep(c) ((c) == '/')
225#endif
226
d1c69255
TN
227#ifndef find_last_dir_sep
228#define find_last_dir_sep(path) strrchr(path, '/')
229#endif
230
e4ac953b 231#if defined(__HP_cc) && (__HP_cc >= 61000)
b6ab349b
MR
232#define NORETURN __attribute__((noreturn))
233#define NORETURN_PTR
6520c846 234#elif defined(__GNUC__) && !defined(NO_NORETURN)
4050c0df 235#define NORETURN __attribute__((__noreturn__))
18660bc9 236#define NORETURN_PTR __attribute__((__noreturn__))
aba7dea8
RJ
237#elif defined(_MSC_VER)
238#define NORETURN __declspec(noreturn)
239#define NORETURN_PTR
4050c0df
JH
240#else
241#define NORETURN
18660bc9 242#define NORETURN_PTR
4050c0df
JH
243#ifndef __attribute__
244#define __attribute__(x)
245#endif
246#endif
247
51ea5519
NP
248#include "compat/bswap.h"
249
4050c0df 250/* General helper functions */
ebaa79f4 251extern void vreportf(const char *prefix, const char *err, va_list params);
3bc4181f 252extern void vwritef(int fd, const char *prefix, const char *err, va_list params);
a4f3131c 253extern NORETURN void usage(const char *err);
64b1cb74 254extern NORETURN void usagef(const char *err, ...) __attribute__((format (printf, 1, 2)));
a4f3131c
EFL
255extern NORETURN void die(const char *err, ...) __attribute__((format (printf, 1, 2)));
256extern NORETURN void die_errno(const char *err, ...) __attribute__((format (printf, 1, 2)));
4050c0df 257extern int error(const char *err, ...) __attribute__((format (printf, 1, 2)));
46efd2d9 258extern void warning(const char *err, ...) __attribute__((format (printf, 1, 2)));
4050c0df 259
18660bc9 260extern void set_die_routine(NORETURN_PTR void (*routine)(const char *err, va_list params));
3bc4181f 261extern void set_error_routine(void (*routine)(const char *err, va_list params));
39a3f5ea 262
698a68be 263extern int prefixcmp(const char *str, const char *prefix);
8cc5b290 264extern int suffixcmp(const char *str, const char *suffix);
698a68be 265
fbca5837
MV
266static inline const char *skip_prefix(const char *str, const char *prefix)
267{
268 size_t len = strlen(prefix);
269 return strncmp(str, prefix, len) ? NULL : str + len;
270}
271
b130a72b 272#if defined(NO_MMAP) || defined(USE_WIN32_MMAP)
4050c0df
JH
273
274#ifndef PROT_READ
275#define PROT_READ 1
276#define PROT_WRITE 2
277#define MAP_PRIVATE 1
4050c0df
JH
278#endif
279
d6779124
SP
280#define mmap git_mmap
281#define munmap git_munmap
282extern void *git_mmap(void *start, size_t length, int prot, int flags, int fd, off_t offset);
283extern int git_munmap(void *start, size_t length);
4050c0df 284
b130a72b
JL
285#else /* NO_MMAP || USE_WIN32_MMAP */
286
287#include <sys/mman.h>
288
289#endif /* NO_MMAP || USE_WIN32_MMAP */
290
291#ifdef NO_MMAP
292
5faaf246 293/* This value must be multiple of (pagesize * 2) */
8c82534d
SP
294#define DEFAULT_PACKED_GIT_WINDOW_SIZE (1 * 1024 * 1024)
295
4050c0df
JH
296#else /* NO_MMAP */
297
5faaf246 298/* This value must be multiple of (pagesize * 2) */
22bac0ea
SP
299#define DEFAULT_PACKED_GIT_WINDOW_SIZE \
300 (sizeof(void*) >= 8 \
301 ? 1 * 1024 * 1024 * 1024 \
302 : 32 * 1024 * 1024)
4050c0df
JH
303
304#endif /* NO_MMAP */
305
fcf3a21a
GV
306#ifndef MAP_FAILED
307#define MAP_FAILED ((void *)-1)
308#endif
309
fdb2a2a6
JH
310#ifdef NO_ST_BLOCKS_IN_STRUCT_STAT
311#define on_disk_bytes(st) ((st).st_size)
312#else
313#define on_disk_bytes(st) ((st).st_blocks * 512)
314#endif
315
22bac0ea 316#define DEFAULT_PACKED_GIT_LIMIT \
ecaebf4a 317 ((1024L * 1024L) * (sizeof(void*) >= 8 ? 8192 : 256))
8c82534d 318
6900679c
SH
319#ifdef NO_PREAD
320#define pread git_pread
321extern ssize_t git_pread(int fd, void *buf, size_t count, off_t offset);
322#endif
14086b0a
SP
323/*
324 * Forward decl that will remind us if its twin in cache.h changes.
325 * This function is used in compat/pread.c. But we can't include
326 * cache.h there.
327 */
328extern ssize_t read_in_full(int fd, void *buf, size_t count);
6900679c 329
4050c0df
JH
330#ifdef NO_SETENV
331#define setenv gitsetenv
332extern int gitsetenv(const char *, const char *, int);
333#endif
334
ca5bb5d5
SP
335#ifdef NO_MKDTEMP
336#define mkdtemp gitmkdtemp
337extern char *gitmkdtemp(char *);
338#endif
339
0620b39b
DA
340#ifdef NO_MKSTEMPS
341#define mkstemps gitmkstemps
342extern int gitmkstemps(char *, int);
343#endif
344
731043fd
JR
345#ifdef NO_UNSETENV
346#define unsetenv gitunsetenv
347extern void gitunsetenv(const char *);
348#endif
349
4050c0df
JH
350#ifdef NO_STRCASESTR
351#define strcasestr gitstrcasestr
352extern char *gitstrcasestr(const char *haystack, const char *needle);
353#endif
354
817151e6
PE
355#ifdef NO_STRLCPY
356#define strlcpy gitstrlcpy
357extern size_t gitstrlcpy(char *, const char *, size_t);
358#endif
359
bc6b4f52
JR
360#ifdef NO_STRTOUMAX
361#define strtoumax gitstrtoumax
362extern uintmax_t gitstrtoumax(const char *, char **, int);
97000ba6
JS
363#define strtoimax gitstrtoimax
364extern intmax_t gitstrtoimax(const char *, char **, int);
bc6b4f52
JR
365#endif
366
78457bc0
JN
367#ifdef NO_STRTOK_R
368#define strtok_r gitstrtok_r
369extern char *gitstrtok_r(char *s, const char *delim, char **save_ptr);
370#endif
371
fa0c87c3
AR
372#ifdef NO_HSTRERROR
373#define hstrerror githstrerror
374extern const char *githstrerror(int herror);
375#endif
376
b21b9f1d
RS
377#ifdef NO_MEMMEM
378#define memmem gitmemmem
379void *gitmemmem(const void *haystack, size_t haystacklen,
380 const void *needle, size_t needlelen);
381#endif
382
cba22528 383#ifdef FREAD_READS_DIRECTORIES
c5445fe0
JS
384#ifdef fopen
385#undef fopen
386#endif
cba22528
BC
387#define fopen(a,b) git_fopen(a,b)
388extern FILE *git_fopen(const char*, const char*);
389#endif
390
c4582f93
MR
391#ifdef SNPRINTF_RETURNS_BOGUS
392#define snprintf git_snprintf
393extern int git_snprintf(char *str, size_t maxsize,
394 const char *format, ...);
395#define vsnprintf git_vsnprintf
396extern int git_vsnprintf(char *str, size_t maxsize,
397 const char *format, va_list ap);
398#endif
399
726c8ef5
JS
400#ifdef __GLIBC_PREREQ
401#if __GLIBC_PREREQ(2, 1)
402#define HAVE_STRCHRNUL
137c6eaa 403#define HAVE_MEMPCPY
726c8ef5
JS
404#endif
405#endif
406
407#ifndef HAVE_STRCHRNUL
659c69cf 408#define strchrnul gitstrchrnul
9e79f00f
AE
409static inline char *gitstrchrnul(const char *s, int c)
410{
411 while (*s && *s != c)
412 s++;
413 return (char *)s;
414}
659c69cf
RS
415#endif
416
137c6eaa
JN
417#ifndef HAVE_MEMPCPY
418#define mempcpy gitmempcpy
419static inline void *gitmempcpy(void *dest, const void *src, size_t n)
420{
421 return (char *)memcpy(dest, src, n) + n;
422}
423#endif
424
da523cc5
MP
425#ifdef NO_INET_PTON
426int inet_pton(int af, const char *src, void *dst);
427#endif
428
429#ifdef NO_INET_NTOP
430const char *inet_ntop(int af, const void *src, char *dst, size_t size);
431#endif
432
d1efefa4 433extern void release_pack_memory(size_t, int);
97bfeb34 434
851c34b0
JS
435typedef void (*try_to_free_t)(size_t);
436extern try_to_free_t set_try_to_free_routine(try_to_free_t);
a9a74636 437
112db553
LT
438extern char *xstrdup(const char *str);
439extern void *xmalloc(size_t size);
5bf9219d 440extern void *xmallocz(size_t size);
112db553
LT
441extern void *xmemdupz(const void *data, size_t len);
442extern char *xstrndup(const char *str, size_t len);
443extern void *xrealloc(void *ptr, size_t size);
444extern void *xcalloc(size_t nmemb, size_t size);
445extern void *xmmap(void *start, size_t length, int prot, int flags, int fd, off_t offset);
446extern ssize_t xread(int fd, void *buf, size_t len);
447extern ssize_t xwrite(int fd, const void *buf, size_t len);
448extern int xdup(int fd);
449extern FILE *xfdopen(int fd, const char *mode);
450extern int xmkstemp(char *template);
463db9b1 451extern int xmkstemp_mode(char *template, int mode);
6e180cdc
JH
452extern int odb_mkstemp(char *template, size_t limit, const char *pattern);
453extern int odb_pack_keep(char *name, size_t namesz, unsigned char *sha1);
f21a47b2 454
dc49cd76
SP
455static inline size_t xsize_t(off_t len)
456{
46be82df
TR
457 if (len > (size_t) len)
458 die("Cannot handle files this big");
dc49cd76
SP
459 return (size_t)len;
460}
461
5bb1cda5 462static inline int has_extension(const char *filename, const char *ext)
83a2b841 463{
5bb1cda5
RS
464 size_t len = strlen(filename);
465 size_t extlen = strlen(ext);
83a2b841
RS
466 return len > extlen && !memcmp(filename + len - extlen, ext, extlen);
467}
468
f1589d10
RJ
469/* in ctype.c, for kwset users */
470extern const char tolower_trans_tbl[256];
471
4050c0df 472/* Sane ctype - no locale, and works with signed chars */
c2e9364a 473#undef isascii
4050c0df
JH
474#undef isspace
475#undef isdigit
476#undef isalpha
477#undef isalnum
43ccdf56
NK
478#undef islower
479#undef isupper
4050c0df
JH
480#undef tolower
481#undef toupper
482extern unsigned char sane_ctype[256];
483#define GIT_SPACE 0x01
484#define GIT_DIGIT 0x02
485#define GIT_ALPHA 0x04
8cc32992 486#define GIT_GLOB_SPECIAL 0x08
f9b7cce6 487#define GIT_REGEX_SPECIAL 0x10
2f6c9760 488#define GIT_PATHSPEC_MAGIC 0x20
4050c0df 489#define sane_istest(x,mask) ((sane_ctype[(unsigned char)(x)] & (mask)) != 0)
c2e9364a 490#define isascii(x) (((x) & ~0x7f) == 0)
4050c0df
JH
491#define isspace(x) sane_istest(x,GIT_SPACE)
492#define isdigit(x) sane_istest(x,GIT_DIGIT)
493#define isalpha(x) sane_istest(x,GIT_ALPHA)
494#define isalnum(x) sane_istest(x,GIT_ALPHA | GIT_DIGIT)
43ccdf56
NK
495#define islower(x) sane_iscase(x, 1)
496#define isupper(x) sane_iscase(x, 0)
8cc32992 497#define is_glob_special(x) sane_istest(x,GIT_GLOB_SPECIAL)
f9b7cce6 498#define is_regex_special(x) sane_istest(x,GIT_GLOB_SPECIAL | GIT_REGEX_SPECIAL)
4050c0df
JH
499#define tolower(x) sane_case((unsigned char)(x), 0x20)
500#define toupper(x) sane_case((unsigned char)(x), 0)
2f6c9760 501#define is_pathspec_magic(x) sane_istest(x,GIT_PATHSPEC_MAGIC)
4050c0df
JH
502
503static inline int sane_case(int x, int high)
504{
505 if (sane_istest(x, GIT_ALPHA))
506 x = (x & ~0x20) | high;
507 return x;
508}
509
43ccdf56
NK
510static inline int sane_iscase(int x, int is_lower)
511{
512 if (!sane_istest(x, GIT_ALPHA))
513 return 0;
514
515 if (is_lower)
516 return (x & 0x20) != 0;
517 else
518 return (x & 0x20) == 0;
519}
520
6aead43d
JM
521static inline int strtoul_ui(char const *s, int base, unsigned int *result)
522{
523 unsigned long ul;
524 char *p;
525
526 errno = 0;
527 ul = strtoul(s, &p, base);
528 if (errno || *p || p == s || (unsigned int) ul != ul)
529 return -1;
530 *result = ul;
531 return 0;
532}
533
7791ecbc
JH
534static inline int strtol_i(char const *s, int base, int *result)
535{
536 long ul;
537 char *p;
538
539 errno = 0;
540 ul = strtol(s, &p, base);
541 if (errno || *p || p == s || (int) ul != ul)
542 return -1;
543 *result = ul;
544 return 0;
545}
546
43fe901b
BD
547#ifdef INTERNAL_QSORT
548void git_qsort(void *base, size_t nmemb, size_t size,
549 int(*compar)(const void *, const void *));
550#define qsort git_qsort
551#endif
552
81a24b52
AR
553#ifndef DIR_HAS_BSD_GROUP_SEMANTICS
554# define FORCE_DIR_SET_GID S_ISGID
555#else
556# define FORCE_DIR_SET_GID 0
557#endif
558
c06ff490
KB
559#ifdef NO_NSEC
560#undef USE_NSEC
561#define ST_CTIME_NSEC(st) 0
562#define ST_MTIME_NSEC(st) 0
563#else
c567383b
BG
564#ifdef USE_ST_TIMESPEC
565#define ST_CTIME_NSEC(st) ((unsigned int)((st).st_ctimespec.tv_nsec))
566#define ST_MTIME_NSEC(st) ((unsigned int)((st).st_mtimespec.tv_nsec))
567#else
c06ff490
KB
568#define ST_CTIME_NSEC(st) ((unsigned int)((st).st_ctim.tv_nsec))
569#define ST_MTIME_NSEC(st) ((unsigned int)((st).st_mtim.tv_nsec))
570#endif
c567383b 571#endif
c06ff490 572
34779c53
JS
573#ifdef UNRELIABLE_FSTAT
574#define fstat_is_reliable() 0
575#else
576#define fstat_is_reliable() 1
577#endif
578
ab8632ae 579#ifndef va_copy
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580/*
581 * Since an obvious implementation of va_list would be to make it a
582 * pointer into the stack frame, a simple assignment will work on
583 * many systems. But let's try to be more portable.
584 */
585#ifdef __va_copy
586#define va_copy(dst, src) __va_copy(dst, src)
587#else
588#define va_copy(dst, src) ((dst) = (src))
589#endif
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590#endif
591
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592/*
593 * Preserves errno, prints a message, but gives no warning for ENOENT.
594 * Always returns the return value of unlink(2).
595 */
596int unlink_or_warn(const char *path);
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597/*
598 * Likewise for rmdir(2).
599 */
600int rmdir_or_warn(const char *path);
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601/*
602 * Calls the correct function out of {unlink,rmdir}_or_warn based on
603 * the supplied file mode.
604 */
605int remove_or_warn(unsigned int mode, const char *path);
fc71db39 606
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607/* Call access(2), but warn for any error besides ENOENT. */
608int access_or_warn(const char *path, int mode);
609
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610/* Warn on an inaccessible file that ought to be accessible */
611void warn_on_inaccessible(const char *path);
612
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613/* Get the passwd entry for the UID of the current process. */
614struct passwd *xgetpwuid_self(void);
615
4050c0df 616#endif