| 1 | /* --------------------------------------------------------------
|
|---|
| 2 | *
|
|---|
| 3 | * The developement of this library has been stimulated by reading
|
|---|
| 4 | * a paper on 'Robust Programming' by Matt Bishop, although
|
|---|
| 5 | * not all of his ideas might be implemented in the same
|
|---|
| 6 | * strictness as discussed in the paper.
|
|---|
| 7 | *
|
|---|
| 8 | * --------------------------------------------------------------
|
|---|
| 9 | */
|
|---|
| 10 |
|
|---|
| 11 | #ifndef SL_SLIB_H
|
|---|
| 12 | #define SL_SLIB_H
|
|---|
| 13 |
|
|---|
| 14 | #include <errno.h>
|
|---|
| 15 | #include <stdio.h>
|
|---|
| 16 | #include <stdlib.h>
|
|---|
| 17 | #include <stdarg.h>
|
|---|
| 18 | #include <sys/types.h>
|
|---|
| 19 |
|
|---|
| 20 | #include "config_xor.h"
|
|---|
| 21 |
|
|---|
| 22 | #ifdef HAVE_UNISTD_H
|
|---|
| 23 | #include <unistd.h>
|
|---|
| 24 | #endif
|
|---|
| 25 |
|
|---|
| 26 | #include "sh_string.h"
|
|---|
| 27 |
|
|---|
| 28 | /****************
|
|---|
| 29 |
|
|---|
| 30 | -- Defined in config.h. --
|
|---|
| 31 |
|
|---|
| 32 | #ifndef _(string)
|
|---|
| 33 | #define _(string) string
|
|---|
| 34 | #endif
|
|---|
| 35 |
|
|---|
| 36 | #ifndef N_(string)
|
|---|
| 37 | #define N_(string) string
|
|---|
| 38 | #endif
|
|---|
| 39 |
|
|---|
| 40 | *****************/
|
|---|
| 41 |
|
|---|
| 42 | /* --------------------------------------------------------------
|
|---|
| 43 | *
|
|---|
| 44 | * Typedefs, global variables, macros.
|
|---|
| 45 | *
|
|---|
| 46 | * --------------------------------------------------------------
|
|---|
| 47 | */
|
|---|
| 48 |
|
|---|
| 49 | extern long int sl_errno; /* Global error variable. */
|
|---|
| 50 |
|
|---|
| 51 |
|
|---|
| 52 | /* The ticketing system; used to hide internals from the
|
|---|
| 53 | * programmer.
|
|---|
| 54 | */
|
|---|
| 55 | typedef long int SL_TICKET; /* Unique ID for opened files. */
|
|---|
| 56 |
|
|---|
| 57 |
|
|---|
| 58 | /*
|
|---|
| 59 | * TRUE, FALSE
|
|---|
| 60 | */
|
|---|
| 61 | #define SL_TRUE 1
|
|---|
| 62 | #define SL_FALSE 0
|
|---|
| 63 |
|
|---|
| 64 | #define SH_GRBUF_SIZE 4096
|
|---|
| 65 | #define SH_PWBUF_SIZE 4096
|
|---|
| 66 |
|
|---|
| 67 |
|
|---|
| 68 | #if defined(__GNUC__) && (__GNUC__ >= 3)
|
|---|
| 69 | #undef SL_GNUC_CONST
|
|---|
| 70 | #define SL_GNUC_CONST __attribute__((const))
|
|---|
| 71 | #else
|
|---|
| 72 | #undef SL_GNUC_CONST
|
|---|
| 73 | #define SL_GNUC_CONST
|
|---|
| 74 | #endif
|
|---|
| 75 |
|
|---|
| 76 | /*
|
|---|
| 77 | * The following macros are provided:
|
|---|
| 78 | *
|
|---|
| 79 | * SL_ISERROR(x) TRUE if return status of 'x' is an error code.
|
|---|
| 80 | * SL_REQUIRE(x, xstr) Abort if 'x' is false.
|
|---|
| 81 | * SL_ENTER(s) Trace entry in function 's'.
|
|---|
| 82 | * SL_RETURN(x, s) Trace return from function 's'.
|
|---|
| 83 | */
|
|---|
| 84 |
|
|---|
| 85 |
|
|---|
| 86 | /*
|
|---|
| 87 | * The error codes.
|
|---|
| 88 | */
|
|---|
| 89 | #define SL_ENONE 0
|
|---|
| 90 |
|
|---|
| 91 | #define SL_ENULL -1024 /* Invalid use of NULL pointer. */
|
|---|
| 92 | #define SL_ERANGE -1025 /* Argument out of range. */
|
|---|
| 93 | #define SL_ETRUNC -1026 /* Result truncated. */
|
|---|
| 94 | #define SL_EREPEAT -1027 /* Illegal repeated use of function. */
|
|---|
| 95 |
|
|---|
| 96 | #define SL_EINTERNAL -1028 /* Internal error. */
|
|---|
| 97 | #define SL_ETICKET -1029 /* Bad ticket. */
|
|---|
| 98 | #define SL_EBADFILE -1030 /* File access error. Check errno. */
|
|---|
| 99 | #define SL_EBOGUS -1031 /* Bogus file. */
|
|---|
| 100 | #define SL_EMEM -1032 /* Out of memory. */
|
|---|
| 101 | #define SL_EUNLINK -1033 /* Unlink error. Check errno. */
|
|---|
| 102 | #define SL_EREWIND -1034 /* Rewind error. Check errno. */
|
|---|
| 103 | #define SL_EFORWARD -1035 /* Forward error. Check errno. */
|
|---|
| 104 | #define SL_EREAD -1036 /* Read error. Check errno. */
|
|---|
| 105 | #define SL_EWRITE -1037 /* Write error. Check errno. */
|
|---|
| 106 | #define SL_ESYNC -1038 /* Write error. Check errno. */
|
|---|
| 107 |
|
|---|
| 108 | #define SL_EBADNAME -1040 /* Invalid name. */
|
|---|
| 109 | #define SL_ESTAT -1041 /* stat of file failed. Check errno. */
|
|---|
| 110 | #define SL_EFSTAT -1042 /* fstat of file failed. Check errno. */
|
|---|
| 111 |
|
|---|
| 112 | #define SL_EBADUID -1050 /* Owner not trustworthy. */
|
|---|
| 113 | #define SL_EBADGID -1051 /* Group writeable and not trustworthy.*/
|
|---|
| 114 | #define SL_EBADOTH -1052 /* World writeable. */
|
|---|
| 115 |
|
|---|
| 116 | #define SL_TOOMANY -1053 /* Too many open files */
|
|---|
| 117 | #define SL_TIMEOUT -1054 /* Timeout in read */
|
|---|
| 118 |
|
|---|
| 119 | #define SL_EISDIR -1055 /* Is a directory */
|
|---|
| 120 | /*
|
|---|
| 121 | * All int functions return SL_NONE on success.
|
|---|
| 122 | */
|
|---|
| 123 |
|
|---|
| 124 | #ifdef __cplusplus
|
|---|
| 125 | extern "C" {
|
|---|
| 126 | #endif
|
|---|
| 127 |
|
|---|
| 128 | int dlog (int flag, const char * file, int line, const char *fmt, ...);
|
|---|
| 129 |
|
|---|
| 130 | char * sl_get_errmsg(void);
|
|---|
| 131 |
|
|---|
| 132 | /* ----------------------------------------------------------------
|
|---|
| 133 | *
|
|---|
| 134 | * Heap consistency routines
|
|---|
| 135 | *
|
|---|
| 136 | * ---------------------------------------------------------------- */
|
|---|
| 137 |
|
|---|
| 138 | int sl_test_heap(void);
|
|---|
| 139 |
|
|---|
| 140 | /* ----------------------------------------------------------------
|
|---|
| 141 | *
|
|---|
| 142 | * Capability routines
|
|---|
| 143 | *
|
|---|
| 144 | * ---------------------------------------------------------------- */
|
|---|
| 145 |
|
|---|
| 146 | extern int sl_useCaps;
|
|---|
| 147 |
|
|---|
| 148 | int sl_drop_cap (void);
|
|---|
| 149 | int sl_drop_cap_sub(void);
|
|---|
| 150 | int sl_get_cap_sub(void);
|
|---|
| 151 | int sl_drop_cap_qdel(void);
|
|---|
| 152 | int sl_get_cap_qdel(void);
|
|---|
| 153 |
|
|---|
| 154 | /* ----------------------------------------------------------------
|
|---|
| 155 | *
|
|---|
| 156 | * String handling routines
|
|---|
| 157 | *
|
|---|
| 158 | * ---------------------------------------------------------------- */
|
|---|
| 159 |
|
|---|
| 160 | /*
|
|---|
| 161 | * A memset that does not get optimized away
|
|---|
| 162 | */
|
|---|
| 163 | void *sl_memset(void *s, int c, size_t n);
|
|---|
| 164 | #if !defined(SH_REAL_SET)
|
|---|
| 165 | #undef memset
|
|---|
| 166 | #define memset sl_memset
|
|---|
| 167 | #endif
|
|---|
| 168 |
|
|---|
| 169 | /*
|
|---|
| 170 | * Copy src to dst. siz is the length of dst.
|
|---|
| 171 | */
|
|---|
| 172 | int sl_strlcpy(char * dst, /*@null@*/const char * src, size_t siz);
|
|---|
| 173 |
|
|---|
| 174 | /*
|
|---|
| 175 | * Append src to dst. siz is the length of dst.
|
|---|
| 176 | */
|
|---|
| 177 | int sl_strlcat(char * dst, /*@null@*/const char *src, size_t siz);
|
|---|
| 178 |
|
|---|
| 179 | /*
|
|---|
| 180 | * An implementation of vsnprintf. va_start/va_end are in the caller
|
|---|
| 181 | * function.
|
|---|
| 182 | */
|
|---|
| 183 | int sl_vsnprintf(char *str, size_t n,
|
|---|
| 184 | const char *format, va_list vl );
|
|---|
| 185 |
|
|---|
| 186 | /*
|
|---|
| 187 | * An implementation of snprintf.
|
|---|
| 188 | */
|
|---|
| 189 | int sl_snprintf(char *str, size_t n,
|
|---|
| 190 | const char *format, ... );
|
|---|
| 191 |
|
|---|
| 192 | /*
|
|---|
| 193 | * A robust drop-in replacement of strncpy. strlcpy is preferable.
|
|---|
| 194 | */
|
|---|
| 195 | char * sl_strncpy(/*@out@*/char *dst, const char *src, size_t size);
|
|---|
| 196 |
|
|---|
| 197 | /*
|
|---|
| 198 | * Robust strncat.
|
|---|
| 199 | */
|
|---|
| 200 | char * sl_strncat(char *dst, const char *src, size_t n);
|
|---|
| 201 |
|
|---|
| 202 | /*
|
|---|
| 203 | * strstr
|
|---|
| 204 | */
|
|---|
| 205 | const char * sl_strstr (const char * haystack, const char * needle);
|
|---|
| 206 |
|
|---|
| 207 | /*
|
|---|
| 208 | * robust strncmp replacement
|
|---|
| 209 | */
|
|---|
| 210 | int sl_strncmp(const char * a, const char * b, size_t n);
|
|---|
| 211 |
|
|---|
| 212 | /*
|
|---|
| 213 | * robust strcmp replacement
|
|---|
| 214 | */
|
|---|
| 215 | int sl_strcmp(const char * a, const char * b);
|
|---|
| 216 |
|
|---|
| 217 | /*
|
|---|
| 218 | * robust strcasecmp replacement
|
|---|
| 219 | */
|
|---|
| 220 | int sl_strcasecmp(const char * one, const char * two);
|
|---|
| 221 |
|
|---|
| 222 | /*
|
|---|
| 223 | * robust strlen replacement
|
|---|
| 224 | */
|
|---|
| 225 | #define sl_strlen(arg) ((arg == NULL) ? 0 : (strlen(arg)))
|
|---|
| 226 |
|
|---|
| 227 | /* ----------------------------------------------------------------
|
|---|
| 228 | *
|
|---|
| 229 | * Privilege handling routines
|
|---|
| 230 | *
|
|---|
| 231 | * ---------------------------------------------------------------- */
|
|---|
| 232 |
|
|---|
| 233 | /*
|
|---|
| 234 | * ONE OF THE FOLLOWING THREE FUNCTIONS
|
|---|
| 235 | * SHOULD BE CALLED BEFORE ANY OTHER OF THE
|
|---|
| 236 | * UID HANDLING FUNCTIONS.
|
|---|
| 237 | */
|
|---|
| 238 | int sl_policy_get_user(const char *username); /* drop SUID to <username> */
|
|---|
| 239 | int sl_policy_get_real(char *username); /* drop privs to <username> */
|
|---|
| 240 | int sl_policy_get_root(void); /* drop SUID to root */
|
|---|
| 241 |
|
|---|
| 242 | /*
|
|---|
| 243 | * If not using one of the above, use this function,
|
|---|
| 244 | * and then call sh_unset_suid().
|
|---|
| 245 | * This function saves the uid's.
|
|---|
| 246 | * It calls abort() on error.
|
|---|
| 247 | */
|
|---|
| 248 | int sl_save_uids(void);
|
|---|
| 249 |
|
|---|
| 250 | /*
|
|---|
| 251 | * This function returns the saved euid.
|
|---|
| 252 | * It calls abort() if the uid's are not saved already.
|
|---|
| 253 | */
|
|---|
| 254 | int sl_get_euid(/*@out@*/uid_t * ret);
|
|---|
| 255 | uid_t sl_ret_euid(void);
|
|---|
| 256 |
|
|---|
| 257 | /*
|
|---|
| 258 | * This function returns the saved egid.
|
|---|
| 259 | * It calls abort() if the uid's are not saved already.
|
|---|
| 260 | */
|
|---|
| 261 | int sl_get_egid(/*@out@*/gid_t * ret);
|
|---|
| 262 |
|
|---|
| 263 | /*
|
|---|
| 264 | * This function returns the saved current ruid.
|
|---|
| 265 | * It calls abort() if the uid's are not saved already.
|
|---|
| 266 | */
|
|---|
| 267 | int sl_get_ruid(/*@out@*/uid_t * ret);
|
|---|
| 268 |
|
|---|
| 269 | /*
|
|---|
| 270 | * This function returns the saved current rgid.
|
|---|
| 271 | * It calls abort() if the uid's are not saved already.
|
|---|
| 272 | */
|
|---|
| 273 | int sl_get_rgid(gid_t * ret);
|
|---|
| 274 |
|
|---|
| 275 | /*
|
|---|
| 276 | * This function returns the saved original ruid.
|
|---|
| 277 | * It calls abort() if the uid's are not saved already.
|
|---|
| 278 | */
|
|---|
| 279 | int sl_get_ruid_orig(uid_t * ret);
|
|---|
| 280 |
|
|---|
| 281 | /*
|
|---|
| 282 | * This function returns the saved original rgid.
|
|---|
| 283 | * It calls abort() if the uid's are not saved already.
|
|---|
| 284 | */
|
|---|
| 285 | int sl_get_rgid_orig(gid_t * ret);
|
|---|
| 286 |
|
|---|
| 287 | /*
|
|---|
| 288 | * This function returns true if the program is SUID.
|
|---|
| 289 | * It calls abort() if the uid's are not saved already.
|
|---|
| 290 | */
|
|---|
| 291 | int sl_is_suid(void);
|
|---|
| 292 |
|
|---|
| 293 | /*
|
|---|
| 294 | * This function sets the effective uid
|
|---|
| 295 | * to the saved effective uid.
|
|---|
| 296 | */
|
|---|
| 297 | int sl_set_suid (void);
|
|---|
| 298 |
|
|---|
| 299 | /*
|
|---|
| 300 | * This function sets the effective uid to the real uid.
|
|---|
| 301 | */
|
|---|
| 302 | int sl_unset_suid (void);
|
|---|
| 303 |
|
|---|
| 304 | /*
|
|---|
| 305 | * This function drops SUID privileges irrevocably.
|
|---|
| 306 | */
|
|---|
| 307 | int sl_drop_privileges(void);
|
|---|
| 308 |
|
|---|
| 309 | /* ----------------------------------------------------------------
|
|---|
| 310 | *
|
|---|
| 311 | * File handling routines
|
|---|
| 312 | *
|
|---|
| 313 | * ---------------------------------------------------------------- */
|
|---|
| 314 |
|
|---|
| 315 | SL_TICKET sl_make_ticket (int fd, const char * path);
|
|---|
| 316 |
|
|---|
| 317 | /* Open for writing.
|
|---|
| 318 | */
|
|---|
| 319 | SL_TICKET sl_open_write (const char * fname, int priviledge_mode);
|
|---|
| 320 |
|
|---|
| 321 | /* Open for reading.
|
|---|
| 322 | */
|
|---|
| 323 | SL_TICKET sl_open_read (const char * fname, int priviledge_mode);
|
|---|
| 324 |
|
|---|
| 325 | /* Open for reading w/minimum checking.
|
|---|
| 326 | */
|
|---|
| 327 | SL_TICKET sl_open_fastread (const char * fname, int priviledge_mode);
|
|---|
| 328 |
|
|---|
| 329 | /* Open for read and write.
|
|---|
| 330 | */
|
|---|
| 331 | SL_TICKET sl_open_rdwr (const char * fname, int priviledge_mode);
|
|---|
| 332 |
|
|---|
| 333 | /* Open for read and write, fail if file exists.
|
|---|
| 334 | */
|
|---|
| 335 | SL_TICKET sl_open_safe_rdwr (const char * fname, int priv);
|
|---|
| 336 |
|
|---|
| 337 | /* Open for write, truncate.
|
|---|
| 338 | */
|
|---|
| 339 | SL_TICKET sl_open_write_trunc (const char * fname, int priviledge_mode);
|
|---|
| 340 |
|
|---|
| 341 | /* Open for read and write, truncate.
|
|---|
| 342 | */
|
|---|
| 343 | SL_TICKET sl_open_rdwr_trunc (const char * fname, int priviledge_mode);
|
|---|
| 344 |
|
|---|
| 345 | /* Initialize the content sh_string.
|
|---|
| 346 | */
|
|---|
| 347 | int sl_init_content (SL_TICKET ticket, size_t size);
|
|---|
| 348 |
|
|---|
| 349 | /* Get the (pointer to) the content sh_string.
|
|---|
| 350 | */
|
|---|
| 351 | sh_string * sl_get_content (SL_TICKET ticket);
|
|---|
| 352 |
|
|---|
| 353 | /* Close file.
|
|---|
| 354 | */
|
|---|
| 355 | int sl_close (SL_TICKET ticket);
|
|---|
| 356 |
|
|---|
| 357 | /* Unlink file.
|
|---|
| 358 | */
|
|---|
| 359 | int sl_unlink (SL_TICKET ticket);
|
|---|
| 360 |
|
|---|
| 361 | /* Rewind file.
|
|---|
| 362 | */
|
|---|
| 363 | int sl_rewind (SL_TICKET ticket);
|
|---|
| 364 |
|
|---|
| 365 | /* Seek file.
|
|---|
| 366 | */
|
|---|
| 367 | int sl_seek (SL_TICKET ticket, off_t off_data);
|
|---|
| 368 |
|
|---|
| 369 | /* Forward file.
|
|---|
| 370 | */
|
|---|
| 371 | int sl_forward (SL_TICKET ticket);
|
|---|
| 372 |
|
|---|
| 373 | /* Sync file.
|
|---|
| 374 | */
|
|---|
| 375 | int sl_sync (SL_TICKET ticket);
|
|---|
| 376 |
|
|---|
| 377 | /* Read file.
|
|---|
| 378 | */
|
|---|
| 379 | int sl_read (SL_TICKET ticket, void * buf, size_t count);
|
|---|
| 380 |
|
|---|
| 381 | int sl_read_timeout_prep (SL_TICKET ticket);
|
|---|
| 382 |
|
|---|
| 383 | int sl_read_timeout_fd (int fd, void * buf,
|
|---|
| 384 | size_t count, int timeout, int is_nonblocking);
|
|---|
| 385 |
|
|---|
| 386 | int sl_read_timeout (SL_TICKET ticket, void * buf,
|
|---|
| 387 | size_t count, int timeout, int is_nonblocking);
|
|---|
| 388 |
|
|---|
| 389 | int sl_read_fast (SL_TICKET ticket, void * buf_in, size_t count);
|
|---|
| 390 |
|
|---|
| 391 | /* Write file.
|
|---|
| 392 | */
|
|---|
| 393 | int sl_write (SL_TICKET ticket, const void * msg, long nbytes);
|
|---|
| 394 |
|
|---|
| 395 | /* Write file, terminate with newline.
|
|---|
| 396 | */
|
|---|
| 397 | int sl_write_line (SL_TICKET ticket, const void * msg, long nbytes);
|
|---|
| 398 |
|
|---|
| 399 | /* As above, but only for non-constant strings.
|
|---|
| 400 | */
|
|---|
| 401 | int sl_write_line_fast (SL_TICKET ticket, void * msg, long nbytes);
|
|---|
| 402 |
|
|---|
| 403 | /* Drop all metadata for file descriptors >= fd.
|
|---|
| 404 | */
|
|---|
| 405 | int sl_dropall(int fd, int except);
|
|---|
| 406 | int sl_dropall_dirty(int fd, int except); /* don't deallocate */
|
|---|
| 407 |
|
|---|
| 408 | /* Check whether file is trustworthy.
|
|---|
| 409 | */
|
|---|
| 410 | int sl_trustfile(const char * path, uid_t * ok, uid_t * bad);
|
|---|
| 411 |
|
|---|
| 412 | /* Check whether file is trustworthy.
|
|---|
| 413 | */
|
|---|
| 414 | int sl_trustfile_euid(const char * filename, uid_t euid);
|
|---|
| 415 |
|
|---|
| 416 | /* purge list of trusted users
|
|---|
| 417 | */
|
|---|
| 418 | int sl_trust_purge_user (void);
|
|---|
| 419 |
|
|---|
| 420 | /* Add a trusted user.
|
|---|
| 421 | */
|
|---|
| 422 | int sl_trust_add_user (uid_t pwid);
|
|---|
| 423 |
|
|---|
| 424 | /* Get error string.
|
|---|
| 425 | */
|
|---|
| 426 | char * sl_error_string(int errorcode);
|
|---|
| 427 |
|
|---|
| 428 | /* Get error file.
|
|---|
| 429 | */
|
|---|
| 430 | char * sl_trust_errfile(void);
|
|---|
| 431 |
|
|---|
| 432 | /* Overflow tests
|
|---|
| 433 | */
|
|---|
| 434 | int sl_ok_muli (int a, int b) SL_GNUC_CONST;
|
|---|
| 435 | int sl_ok_divi (int a, int b) SL_GNUC_CONST;
|
|---|
| 436 | int sl_ok_addi (int a, int b) SL_GNUC_CONST;
|
|---|
| 437 | int sl_ok_subi (int a, int b) SL_GNUC_CONST;
|
|---|
| 438 |
|
|---|
| 439 | int sl_ok_muls (size_t a, size_t b) SL_GNUC_CONST;
|
|---|
| 440 | int sl_ok_adds (size_t a, size_t b) SL_GNUC_CONST;
|
|---|
| 441 |
|
|---|
| 442 |
|
|---|
| 443 | #ifdef __cplusplus
|
|---|
| 444 | }
|
|---|
| 445 | #endif
|
|---|
| 446 |
|
|---|
| 447 | /* Privilege modes for file access.
|
|---|
| 448 | */
|
|---|
| 449 | #define SL_YESPRIV 0x33
|
|---|
| 450 | #define SL_NOPRIV 0x34
|
|---|
| 451 |
|
|---|
| 452 | /* Suitable for Linux
|
|---|
| 453 | */
|
|---|
| 454 | #define MAXFILENAME 4096
|
|---|
| 455 |
|
|---|
| 456 |
|
|---|
| 457 | /*
|
|---|
| 458 | * This macro is TRUE if (x) < 0.
|
|---|
| 459 | */
|
|---|
| 460 | #define SL_ISERROR(x) ((long)(x) < 0)
|
|---|
| 461 |
|
|---|
| 462 | #if defined(WITH_TPT)
|
|---|
| 463 | #define TPT(arg) dlog arg ;
|
|---|
| 464 | #else
|
|---|
| 465 | #define TPT(arg)
|
|---|
| 466 | #endif
|
|---|
| 467 |
|
|---|
| 468 |
|
|---|
| 469 | /*
|
|---|
| 470 | * The 'require' macro.
|
|---|
| 471 | */
|
|---|
| 472 | #define SL_REQUIRE(assertion, astext) \
|
|---|
| 473 | do { \
|
|---|
| 474 | /*@i@*/ if (assertion) ; \
|
|---|
| 475 | else { \
|
|---|
| 476 | dlog(0, FIL__, __LINE__, SDG_AFAIL, \
|
|---|
| 477 | FIL__, __LINE__, astext); \
|
|---|
| 478 | _exit(EXIT_FAILURE); \
|
|---|
| 479 | } \
|
|---|
| 480 | } while (0)
|
|---|
| 481 |
|
|---|
| 482 |
|
|---|
| 483 | /*
|
|---|
| 484 | * The enter macro. Prints the trace if TRACE is on.
|
|---|
| 485 | */
|
|---|
| 486 | extern int slib_do_trace;
|
|---|
| 487 | extern int slib_trace_fd;
|
|---|
| 488 |
|
|---|
| 489 | #if defined(SL_DEBUG)
|
|---|
| 490 | #define SL_ENTER(s) sl_stack_push(s, FIL__, __LINE__);
|
|---|
| 491 | #else
|
|---|
| 492 | #define SL_ENTER(s) if (slib_do_trace != 0) sl_trace_in(s, FIL__, __LINE__);
|
|---|
| 493 | #endif
|
|---|
| 494 |
|
|---|
| 495 | /*
|
|---|
| 496 | * The return macro.
|
|---|
| 497 | */
|
|---|
| 498 | #if defined(SL_DEBUG)
|
|---|
| 499 | #ifndef S_SPLINT_S
|
|---|
| 500 | #define SL_RETURN(x, s) \
|
|---|
| 501 | do { \
|
|---|
| 502 | sl_stack_pop(s, FIL__, __LINE__); \
|
|---|
| 503 | return(x); \
|
|---|
| 504 | } while(0)
|
|---|
| 505 | #else
|
|---|
| 506 | /*@notfunction@*/
|
|---|
| 507 | #define SL_RETURN(x, s) return(x);
|
|---|
| 508 | #endif /* S_SPLINT_S */
|
|---|
| 509 | #else
|
|---|
| 510 | #ifndef S_SPLINT_S
|
|---|
| 511 | #define SL_RETURN(x, s) \
|
|---|
| 512 | do { \
|
|---|
| 513 | if (slib_do_trace != 0) \
|
|---|
| 514 | sl_trace_out(s, FIL__, __LINE__); \
|
|---|
| 515 | return(x); \
|
|---|
| 516 | } while(0)
|
|---|
| 517 | #else
|
|---|
| 518 | /*@notfunction@*/
|
|---|
| 519 | #define SL_RETURN(x, s) return(x);
|
|---|
| 520 | #endif /* S_SPLINT_S */
|
|---|
| 521 | #endif /* SL_RETURN macro */
|
|---|
| 522 |
|
|---|
| 523 | #if defined(SL_DEBUG)
|
|---|
| 524 | #define SL_RET0(s) \
|
|---|
| 525 | do { \
|
|---|
| 526 | sl_stack_pop(s, FIL__, __LINE__); \
|
|---|
| 527 | return; \
|
|---|
| 528 | } while(0)
|
|---|
| 529 | #else
|
|---|
| 530 | #ifndef S_SPLINT_S
|
|---|
| 531 | #define SL_RET0(s) \
|
|---|
| 532 | do { \
|
|---|
| 533 | if (slib_do_trace != 0) \
|
|---|
| 534 | sl_trace_out(s, FIL__, __LINE__); \
|
|---|
| 535 | return; \
|
|---|
| 536 | } while(0)
|
|---|
| 537 | #else
|
|---|
| 538 | /*@notfunction@*/
|
|---|
| 539 | #define SL_RET0(s) return;
|
|---|
| 540 | #endif /* S_SPLINT_S */
|
|---|
| 541 | #endif /* SL_RETURN macro */
|
|---|
| 542 |
|
|---|
| 543 | #if defined(SL_DEBUG)
|
|---|
| 544 | void sl_stack_push(char * c, char * file, int line);
|
|---|
| 545 | void sl_stack_pop(char * c, char * file, int line);
|
|---|
| 546 | void sl_stack_print(void);
|
|---|
| 547 | #endif
|
|---|
| 548 | void sl_trace_in (const char * str, const char * file, int line);
|
|---|
| 549 | void sl_trace_out (const char * str, const char * file, int line);
|
|---|
| 550 | int sl_trace_file (const char * str);
|
|---|
| 551 | int sl_trace_use (const char * str);
|
|---|
| 552 |
|
|---|
| 553 |
|
|---|
| 554 |
|
|---|
| 555 |
|
|---|
| 556 | /*
|
|---|
| 557 | * The internal return macro. Sets sl_errno to the return value.
|
|---|
| 558 | */
|
|---|
| 559 |
|
|---|
| 560 | #if defined(SL_DEBUG)
|
|---|
| 561 | #define SL_IRETURN(x, s) \
|
|---|
| 562 | do { \
|
|---|
| 563 | if((long)(x) < 0) { \
|
|---|
| 564 | TPT((0, FIL__, __LINE__, SDG_ERROR, (long)(x))) \
|
|---|
| 565 | sl_errno=(x); \
|
|---|
| 566 | } \
|
|---|
| 567 | sl_stack_pop(s, FIL__, __LINE__); \
|
|---|
| 568 | if (1) return(x); \
|
|---|
| 569 | } while(0)
|
|---|
| 570 | #else
|
|---|
| 571 | #define SL_IRETURN(x, s) \
|
|---|
| 572 | do { \
|
|---|
| 573 | if ((long)(x) < 0) sl_errno=(x); \
|
|---|
| 574 | if (slib_do_trace) \
|
|---|
| 575 | sl_trace_out(s, FIL__, __LINE__); \
|
|---|
| 576 | if (1) return(x); \
|
|---|
| 577 | } while(0)
|
|---|
| 578 |
|
|---|
| 579 | #endif /* SL_IRETURN macro */
|
|---|
| 580 |
|
|---|
| 581 |
|
|---|
| 582 |
|
|---|
| 583 | /* slib.h */
|
|---|
| 584 | #endif
|
|---|
| 585 |
|
|---|
| 586 |
|
|---|
| 587 |
|
|---|
| 588 |
|
|---|
