#define ARRAY_SIZE(x) (sizeof(x)/sizeof(x[0]))
#define bitsizeof(x) (CHAR_BIT * sizeof(x))
+#define maximum_signed_value_of_type(a) \
+ (INTMAX_MAX >> (bitsizeof(intmax_t) - bitsizeof(a)))
+
+#define maximum_unsigned_value_of_type(a) \
+ (UINTMAX_MAX >> (bitsizeof(uintmax_t) - bitsizeof(a)))
+
+/*
+ * Signed integer overflow is undefined in C, so here's a helper macro
+ * to detect if the sum of two integers will overflow.
+ *
+ * Requires: a >= 0, typeof(a) equals typeof(b)
+ */
+#define signed_add_overflows(a, b) \
+ ((b) > maximum_signed_value_of_type(a) - (a))
+
+#define unsigned_add_overflows(a, b) \
+ ((b) > maximum_unsigned_value_of_type(a) - (a))
+
#ifdef __GNUC__
#define TYPEOF(x) (__typeof__(x))
#else
# else
# define _XOPEN_SOURCE 500
# endif
-#elif !defined(__APPLE__) && !defined(__FreeBSD__) && !defined(__USLC__) && !defined(_M_UNIX) && !defined(sgi)
+#elif !defined(__APPLE__) && !defined(__FreeBSD__) && !defined(__USLC__) && \
+ !defined(_M_UNIX) && !defined(__sgi) && !defined(__DragonFly__) && \
+ !defined(__TANDEM)
#define _XOPEN_SOURCE 600 /* glibc2 and AIX 5.3L need 500, OpenBSD needs 600 for S_ISLNK() */
#define _XOPEN_SOURCE_EXTENDED 1 /* AIX 5.3L needs this */
#endif
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
+#ifdef __TANDEM /* or HAVE_STRINGS_H or !NO_STRINGS_H? */
+#include <strings.h> /* for strcasecmp() */
+#endif
#include <errno.h>
#include <limits.h>
#include <sys/param.h>
#include <assert.h>
#include <regex.h>
#include <utime.h>
-#ifndef __MINGW32__
-#include <sys/wait.h>
+#include <syslog.h>
+#ifndef NO_SYS_POLL_H
#include <sys/poll.h>
+#else
+#include <poll.h>
+#endif
+#if defined(__MINGW32__)
+/* pull in Windows compatibility stuff */
+#include "compat/mingw.h"
+#elif defined(_MSC_VER)
+#include "compat/msvc.h"
+#else
+#include <sys/wait.h>
+#include <sys/resource.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <termios.h>
#include <arpa/inet.h>
#include <netdb.h>
#include <pwd.h>
+#include <sys/un.h>
+#ifndef NO_INTTYPES_H
#include <inttypes.h>
+#else
+#include <stdint.h>
+#endif
+#ifdef NO_INTPTR_T
+/*
+ * On I16LP32, ILP32 and LP64 "long" is the save bet, however
+ * on LLP86, IL33LLP64 and P64 it needs to be "long long",
+ * while on IP16 and IP16L32 it is "int" (resp. "short")
+ * Size needs to match (or exceed) 'sizeof(void *)'.
+ * We can't take "long long" here as not everybody has it.
+ */
+typedef long intptr_t;
+typedef unsigned long uintptr_t;
+#endif
#if defined(__CYGWIN__)
#undef _XOPEN_SOURCE
#include <grp.h>
#include <grp.h>
#define _ALL_SOURCE 1
#endif
-#else /* __MINGW32__ */
-/* pull in Windows compatibility stuff */
-#include "compat/mingw.h"
-#endif /* __MINGW32__ */
-#ifdef _MSC_VER
-#include "compat/msvc.h"
+#endif
+
+/* used on Mac OS X */
+#ifdef PRECOMPOSE_UNICODE
+#include "compat/precompose_utf8.h"
+#else
+#define precompose_str(in,i_nfd2nfc)
+#define precompose_argv(c,v)
+#define probe_utf8_pathname_composition(a,b)
+#endif
+
+#ifdef MKDIR_WO_TRAILING_SLASH
+#define mkdir(a,b) compat_mkdir_wo_trailing_slash((a),(b))
+extern int compat_mkdir_wo_trailing_slash(const char*, mode_t);
+#endif
+
+#ifdef NO_STRUCT_ITIMERVAL
+struct itimerval {
+ struct timeval it_interval;
+ struct timeval it_value;
+}
+#endif
+
+#ifdef NO_SETITIMER
+#define setitimer(which,value,ovalue)
#endif
#ifndef NO_LIBGEN_H
#define PRIx32 "x"
#endif
+#ifndef PRIo32
+#define PRIo32 "o"
+#endif
+
#ifndef PATH_SEP
#define PATH_SEP ':'
#endif
+#ifdef HAVE_PATHS_H
+#include <paths.h>
+#endif
+#ifndef _PATH_DEFPATH
+#define _PATH_DEFPATH "/usr/local/bin:/usr/bin:/bin"
+#endif
+
#ifndef STRIP_EXTENSION
#define STRIP_EXTENSION ""
#endif
#define is_dir_sep(c) ((c) == '/')
#endif
-#ifdef __GNUC__
+#ifndef find_last_dir_sep
+#define find_last_dir_sep(path) strrchr(path, '/')
+#endif
+
+#if defined(__HP_cc) && (__HP_cc >= 61000)
+#define NORETURN __attribute__((noreturn))
+#define NORETURN_PTR
+#elif defined(__GNUC__) && !defined(NO_NORETURN)
#define NORETURN __attribute__((__noreturn__))
#define NORETURN_PTR __attribute__((__noreturn__))
#elif defined(_MSC_VER)
#include "compat/bswap.h"
/* General helper functions */
+extern void vreportf(const char *prefix, const char *err, va_list params);
+extern void vwritef(int fd, const char *prefix, const char *err, va_list params);
extern NORETURN void usage(const char *err);
extern NORETURN void usagef(const char *err, ...) __attribute__((format (printf, 1, 2)));
extern NORETURN void die(const char *err, ...) __attribute__((format (printf, 1, 2)));
extern void warning(const char *err, ...) __attribute__((format (printf, 1, 2)));
extern void set_die_routine(NORETURN_PTR void (*routine)(const char *err, va_list params));
+extern void set_error_routine(void (*routine)(const char *err, va_list params));
extern int prefixcmp(const char *str, const char *prefix);
extern int suffixcmp(const char *str, const char *suffix);
#define PROT_READ 1
#define PROT_WRITE 2
#define MAP_PRIVATE 1
-#define MAP_FAILED ((void*)-1)
#endif
#define mmap git_mmap
#endif /* NO_MMAP */
+#ifndef MAP_FAILED
+#define MAP_FAILED ((void *)-1)
+#endif
+
#ifdef NO_ST_BLOCKS_IN_STRUCT_STAT
#define on_disk_bytes(st) ((st).st_size)
#else
#ifdef NO_STRTOUMAX
#define strtoumax gitstrtoumax
extern uintmax_t gitstrtoumax(const char *, char **, int);
+#define strtoimax gitstrtoimax
+extern intmax_t gitstrtoimax(const char *, char **, int);
+#endif
+
+#ifdef NO_STRTOK_R
+#define strtok_r gitstrtok_r
+extern char *gitstrtok_r(char *s, const char *delim, char **save_ptr);
#endif
#ifdef NO_HSTRERROR
#ifdef __GLIBC_PREREQ
#if __GLIBC_PREREQ(2, 1)
#define HAVE_STRCHRNUL
+#define HAVE_MEMPCPY
#endif
#endif
}
#endif
+#ifndef HAVE_MEMPCPY
+#define mempcpy gitmempcpy
+static inline void *gitmempcpy(void *dest, const void *src, size_t n)
+{
+ return (char *)memcpy(dest, src, n) + n;
+}
+#endif
+
+#ifdef NO_INET_PTON
+int inet_pton(int af, const char *src, void *dst);
+#endif
+
+#ifdef NO_INET_NTOP
+const char *inet_ntop(int af, const void *src, char *dst, size_t size);
+#endif
+
extern void release_pack_memory(size_t, int);
+typedef void (*try_to_free_t)(size_t);
+extern try_to_free_t set_try_to_free_routine(try_to_free_t);
+
extern char *xstrdup(const char *str);
extern void *xmalloc(size_t size);
extern void *xmallocz(size_t size);
extern int xdup(int fd);
extern FILE *xfdopen(int fd, const char *mode);
extern int xmkstemp(char *template);
+extern int xmkstemp_mode(char *template, int mode);
extern int odb_mkstemp(char *template, size_t limit, const char *pattern);
extern int odb_pack_keep(char *name, size_t namesz, unsigned char *sha1);
static inline size_t xsize_t(off_t len)
{
+ if (len > (size_t) len)
+ die("Cannot handle files this big");
return (size_t)len;
}
return len > extlen && !memcmp(filename + len - extlen, ext, extlen);
}
+/* in ctype.c, for kwset users */
+extern const char tolower_trans_tbl[256];
+
/* Sane ctype - no locale, and works with signed chars */
#undef isascii
#undef isspace
#undef isdigit
#undef isalpha
#undef isalnum
+#undef isprint
+#undef islower
+#undef isupper
#undef tolower
#undef toupper
extern unsigned char sane_ctype[256];
#define GIT_ALPHA 0x04
#define GIT_GLOB_SPECIAL 0x08
#define GIT_REGEX_SPECIAL 0x10
+#define GIT_PATHSPEC_MAGIC 0x20
#define sane_istest(x,mask) ((sane_ctype[(unsigned char)(x)] & (mask)) != 0)
#define isascii(x) (((x) & ~0x7f) == 0)
#define isspace(x) sane_istest(x,GIT_SPACE)
#define isdigit(x) sane_istest(x,GIT_DIGIT)
#define isalpha(x) sane_istest(x,GIT_ALPHA)
#define isalnum(x) sane_istest(x,GIT_ALPHA | GIT_DIGIT)
+#define isprint(x) ((x) >= 0x20 && (x) <= 0x7e)
+#define islower(x) sane_iscase(x, 1)
+#define isupper(x) sane_iscase(x, 0)
#define is_glob_special(x) sane_istest(x,GIT_GLOB_SPECIAL)
#define is_regex_special(x) sane_istest(x,GIT_GLOB_SPECIAL | GIT_REGEX_SPECIAL)
#define tolower(x) sane_case((unsigned char)(x), 0x20)
#define toupper(x) sane_case((unsigned char)(x), 0)
+#define is_pathspec_magic(x) sane_istest(x,GIT_PATHSPEC_MAGIC)
static inline int sane_case(int x, int high)
{
return x;
}
+static inline int sane_iscase(int x, int is_lower)
+{
+ if (!sane_istest(x, GIT_ALPHA))
+ return 0;
+
+ if (is_lower)
+ return (x & 0x20) != 0;
+ else
+ return (x & 0x20) == 0;
+}
+
static inline int strtoul_ui(char const *s, int base, unsigned int *result)
{
unsigned long ul;
#define fstat_is_reliable() 1
#endif
+#ifndef va_copy
+/*
+ * Since an obvious implementation of va_list would be to make it a
+ * pointer into the stack frame, a simple assignment will work on
+ * many systems. But let's try to be more portable.
+ */
+#ifdef __va_copy
+#define va_copy(dst, src) __va_copy(dst, src)
+#else
+#define va_copy(dst, src) ((dst) = (src))
+#endif
+#endif
+
/*
* Preserves errno, prints a message, but gives no warning for ENOENT.
* Always returns the return value of unlink(2).
*/
int unlink_or_warn(const char *path);
+/*
+ * Likewise for rmdir(2).
+ */
+int rmdir_or_warn(const char *path);
+/*
+ * Calls the correct function out of {unlink,rmdir}_or_warn based on
+ * the supplied file mode.
+ */
+int remove_or_warn(unsigned int mode, const char *path);
+
+/* Call access(2), but warn for any error besides ENOENT. */
+int access_or_warn(const char *path, int mode);
+
+/* Warn on an inaccessible file that ought to be accessible */
+void warn_on_inaccessible(const char *path);
+
+/* Get the passwd entry for the UID of the current process. */
+struct passwd *xgetpwuid_self(void);
#endif