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Fix compiler warnings on some platforms and provide a better method

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of defeating gcc's warn_unused_result attribute.
This commit is contained in:
Todd C. Miller
2012-03-29 10:33:40 -04:00
parent 8393ec0501
commit aecb5206e2
11 changed files with 117 additions and 99 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
common/sudo_debug.c
View File

@@ -302,7 +302,7 @@ sudo_debug_write(const char *str, int len)
iov[0].iov_len = 16;
/* Write message in a single syscall */
(void) writev(sudo_debug_fd, iov, iovcnt);
ignore_result(writev(sudo_debug_fd, iov, iovcnt));
break;
}
}

9
config.h.in
View File

@@ -912,6 +912,15 @@
# endif /* HAVE_ST_MTIMESPEC */
#endif /* HAVE_ST_MTIM */
#ifdef __GNUC__
# define ignore_result(x) do { \
__typeof__(x) y = (x); \
(void)y; \
} while(0)
#else
# define ignore_result(x) (void)(x)
#endif
/* GNU stow needs /etc/sudoers to be a symlink. */
#ifdef USE_STOW
# define stat_sudoers stat

4
plugins/sample/sample_plugin.c
View File

@@ -468,14 +468,14 @@ io_version(int verbose)
static int
io_log_input(const char *buf, unsigned int len)
{
fwrite(buf, len, 1, input);
ignore_result(fwrite(buf, len, 1, input));
return true;
}
static int
io_log_output(const char *buf, unsigned int len)
{
fwrite(buf, len, 1, output);
ignore_result(fwrite(buf, len, 1, output));
return true;
}

4
plugins/sudoers/iolog.c
View File

@@ -632,10 +632,10 @@ sudoers_io_log(const char *buf, unsigned int len, int idx)
#ifdef HAVE_ZLIB_H
if (iolog_compress)
gzwrite(io_fds[idx].g, (const voidp)buf, len);
ignore_result(gzwrite(io_fds[idx].g, (const voidp)buf, len));
else
#endif
fwrite(buf, 1, len, io_fds[idx].f);
ignore_result(fwrite(buf, 1, len, io_fds[idx].f));
delay.tv_sec = now.tv_sec;
delay.tv_usec = now.tv_usec;
timevalsub(&delay, &last_time);

132
plugins/sudoers/toke.c
View File

@@ -1506,6 +1506,8 @@ int (*trace_print)(const char *msg) = sudoers_trace_print;
return (n); \
} while (0)
#define ECHO ignore_result(fwrite(yytext, yyleng, 1, yyout))
#define push_include(_p) (_push_include((_p), false))
#define push_includedir(_p) (_push_include((_p), true))
#define YY_NO_INPUT 1
@@ -1520,7 +1522,7 @@ int (*trace_print)(const char *msg) = sudoers_trace_print;
#define INSTR 5
#line 1523 "lex.yy.c"
#line 1525 "lex.yy.c"
/* Macros after this point can all be overridden by user definitions in
* section 1.
@@ -1674,9 +1676,9 @@ YY_DECL
register char *yy_cp, *yy_bp;
register int yy_act;
#line 131 "toke.l"
#line 133 "toke.l"
#line 1679 "lex.yy.c"
#line 1681 "lex.yy.c"
if ( yy_init )
{
@@ -1762,7 +1764,7 @@ do_action: /* This label is used only to access EOF actions. */
case 1:
YY_RULE_SETUP
#line 132 "toke.l"
#line 134 "toke.l"
{
LEXTRACE(", ");
LEXRETURN(',');
@@ -1770,12 +1772,12 @@ YY_RULE_SETUP
YY_BREAK
case 2:
YY_RULE_SETUP
#line 137 "toke.l"
#line 139 "toke.l"
BEGIN STARTDEFS;
YY_BREAK
case 3:
YY_RULE_SETUP
#line 139 "toke.l"
#line 141 "toke.l"
{
BEGIN INDEFS;
LEXTRACE("DEFVAR ");
@@ -1787,7 +1789,7 @@ YY_RULE_SETUP
case 4:
YY_RULE_SETUP
#line 148 "toke.l"
#line 150 "toke.l"
{
BEGIN STARTDEFS;
LEXTRACE(", ");
@@ -1796,7 +1798,7 @@ YY_RULE_SETUP
YY_BREAK
case 5:
YY_RULE_SETUP
#line 154 "toke.l"
#line 156 "toke.l"
{
LEXTRACE("= ");
LEXRETURN('=');
@@ -1804,7 +1806,7 @@ YY_RULE_SETUP
YY_BREAK
case 6:
YY_RULE_SETUP
#line 159 "toke.l"
#line 161 "toke.l"
{
LEXTRACE("+= ");
LEXRETURN('+');
@@ -1812,7 +1814,7 @@ YY_RULE_SETUP
YY_BREAK
case 7:
YY_RULE_SETUP
#line 164 "toke.l"
#line 166 "toke.l"
{
LEXTRACE("-= ");
LEXRETURN('-');
@@ -1820,7 +1822,7 @@ YY_RULE_SETUP
YY_BREAK
case 8:
YY_RULE_SETUP
#line 169 "toke.l"
#line 171 "toke.l"
{
LEXTRACE("BEGINSTR ");
yylval.string = NULL;
@@ -1830,7 +1832,7 @@ YY_RULE_SETUP
YY_BREAK
case 9:
YY_RULE_SETUP
#line 176 "toke.l"
#line 178 "toke.l"
{
LEXTRACE("WORD(2) ");
if (!fill(yytext, yyleng))
@@ -1842,7 +1844,7 @@ YY_RULE_SETUP
case 10:
YY_RULE_SETUP
#line 185 "toke.l"
#line 187 "toke.l"
{
/* Line continuation char followed by newline. */
sudolineno++;
@@ -1851,7 +1853,7 @@ YY_RULE_SETUP
YY_BREAK
case 11:
YY_RULE_SETUP
#line 191 "toke.l"
#line 193 "toke.l"
{
LEXTRACE("ENDSTR ");
BEGIN prev_state;
@@ -1886,7 +1888,7 @@ YY_RULE_SETUP
YY_BREAK
case 12:
YY_RULE_SETUP
#line 223 "toke.l"
#line 225 "toke.l"
{
LEXTRACE("BACKSLASH ");
if (!append(yytext, yyleng))
@@ -1895,7 +1897,7 @@ YY_RULE_SETUP
YY_BREAK
case 13:
YY_RULE_SETUP
#line 229 "toke.l"
#line 231 "toke.l"
{
LEXTRACE("STRBODY ");
if (!append(yytext, yyleng))
@@ -1906,7 +1908,7 @@ YY_RULE_SETUP
case 14:
YY_RULE_SETUP
#line 237 "toke.l"
#line 239 "toke.l"
{
/* quoted fnmatch glob char, pass verbatim */
LEXTRACE("QUOTEDCHAR ");
@@ -1917,7 +1919,7 @@ YY_RULE_SETUP
YY_BREAK
case 15:
YY_RULE_SETUP
#line 245 "toke.l"
#line 247 "toke.l"
{
/* quoted sudoers special char, strip backslash */
LEXTRACE("QUOTEDCHAR ");
@@ -1928,7 +1930,7 @@ YY_RULE_SETUP
YY_BREAK
case 16:
YY_RULE_SETUP
#line 253 "toke.l"
#line 255 "toke.l"
{
BEGIN INITIAL;
yyless(0);
@@ -1937,7 +1939,7 @@ YY_RULE_SETUP
YY_BREAK
case 17:
YY_RULE_SETUP
#line 259 "toke.l"
#line 261 "toke.l"
{
LEXTRACE("ARG ");
if (!fill_args(yytext, yyleng, sawspace))
@@ -1948,7 +1950,7 @@ YY_RULE_SETUP
case 18:
YY_RULE_SETUP
#line 267 "toke.l"
#line 269 "toke.l"
{
char *path;
@@ -1969,7 +1971,7 @@ YY_RULE_SETUP
YY_BREAK
case 19:
YY_RULE_SETUP
#line 285 "toke.l"
#line 287 "toke.l"
{
char *path;
@@ -1993,7 +1995,7 @@ YY_RULE_SETUP
YY_BREAK
case 20:
YY_RULE_SETUP
#line 306 "toke.l"
#line 308 "toke.l"
{
char deftype;
int n;
@@ -2036,7 +2038,7 @@ YY_RULE_SETUP
YY_BREAK
case 21:
YY_RULE_SETUP
#line 346 "toke.l"
#line 348 "toke.l"
{
int n;
@@ -2065,7 +2067,7 @@ YY_RULE_SETUP
YY_BREAK
case 22:
YY_RULE_SETUP
#line 372 "toke.l"
#line 374 "toke.l"
{
/* cmnd does not require passwd for this user */
LEXTRACE("NOPASSWD ");
@@ -2074,7 +2076,7 @@ YY_RULE_SETUP
YY_BREAK
case 23:
YY_RULE_SETUP
#line 378 "toke.l"
#line 380 "toke.l"
{
/* cmnd requires passwd for this user */
LEXTRACE("PASSWD ");
@@ -2083,7 +2085,7 @@ YY_RULE_SETUP
YY_BREAK
case 24:
YY_RULE_SETUP
#line 384 "toke.l"
#line 386 "toke.l"
{
LEXTRACE("NOEXEC ");
LEXRETURN(NOEXEC);
@@ -2091,7 +2093,7 @@ YY_RULE_SETUP
YY_BREAK
case 25:
YY_RULE_SETUP
#line 389 "toke.l"
#line 391 "toke.l"
{
LEXTRACE("EXEC ");
LEXRETURN(EXEC);
@@ -2099,7 +2101,7 @@ YY_RULE_SETUP
YY_BREAK
case 26:
YY_RULE_SETUP
#line 394 "toke.l"
#line 396 "toke.l"
{
LEXTRACE("SETENV ");
LEXRETURN(SETENV);
@@ -2107,7 +2109,7 @@ YY_RULE_SETUP
YY_BREAK
case 27:
YY_RULE_SETUP
#line 399 "toke.l"
#line 401 "toke.l"
{
LEXTRACE("NOSETENV ");
LEXRETURN(NOSETENV);
@@ -2115,7 +2117,7 @@ YY_RULE_SETUP
YY_BREAK
case 28:
YY_RULE_SETUP
#line 404 "toke.l"
#line 406 "toke.l"
{
LEXTRACE("LOG_OUTPUT ");
LEXRETURN(LOG_OUTPUT);
@@ -2123,7 +2125,7 @@ YY_RULE_SETUP
YY_BREAK
case 29:
YY_RULE_SETUP
#line 409 "toke.l"
#line 411 "toke.l"
{
LEXTRACE("NOLOG_OUTPUT ");
LEXRETURN(NOLOG_OUTPUT);
@@ -2131,7 +2133,7 @@ YY_RULE_SETUP
YY_BREAK
case 30:
YY_RULE_SETUP
#line 414 "toke.l"
#line 416 "toke.l"
{
LEXTRACE("LOG_INPUT ");
LEXRETURN(LOG_INPUT);
@@ -2139,7 +2141,7 @@ YY_RULE_SETUP
YY_BREAK
case 31:
YY_RULE_SETUP
#line 419 "toke.l"
#line 421 "toke.l"
{
LEXTRACE("NOLOG_INPUT ");
LEXRETURN(NOLOG_INPUT);
@@ -2147,7 +2149,7 @@ YY_RULE_SETUP
YY_BREAK
case 32:
YY_RULE_SETUP
#line 424 "toke.l"
#line 426 "toke.l"
{
/* empty group or netgroup */
LEXTRACE("ERROR ");
@@ -2156,7 +2158,7 @@ YY_RULE_SETUP
YY_BREAK
case 33:
YY_RULE_SETUP
#line 430 "toke.l"
#line 432 "toke.l"
{
/* netgroup */
if (!fill(yytext, yyleng))
@@ -2167,7 +2169,7 @@ YY_RULE_SETUP
YY_BREAK
case 34:
YY_RULE_SETUP
#line 438 "toke.l"
#line 440 "toke.l"
{
/* group */
if (!fill(yytext, yyleng))
@@ -2178,7 +2180,7 @@ YY_RULE_SETUP
YY_BREAK
case 35:
YY_RULE_SETUP
#line 446 "toke.l"
#line 448 "toke.l"
{
if (!fill(yytext, yyleng))
yyterminate();
@@ -2188,7 +2190,7 @@ YY_RULE_SETUP
YY_BREAK
case 36:
YY_RULE_SETUP
#line 453 "toke.l"
#line 455 "toke.l"
{
if (!fill(yytext, yyleng))
yyterminate();
@@ -2198,7 +2200,7 @@ YY_RULE_SETUP
YY_BREAK
case 37:
YY_RULE_SETUP
#line 460 "toke.l"
#line 462 "toke.l"
{
if (!ipv6_valid(yytext)) {
LEXTRACE("ERROR ");
@@ -2212,7 +2214,7 @@ YY_RULE_SETUP
YY_BREAK
case 38:
YY_RULE_SETUP
#line 471 "toke.l"
#line 473 "toke.l"
{
if (!ipv6_valid(yytext)) {
LEXTRACE("ERROR ");
@@ -2226,7 +2228,7 @@ YY_RULE_SETUP
YY_BREAK
case 39:
YY_RULE_SETUP
#line 482 "toke.l"
#line 484 "toke.l"
{
LEXTRACE("ALL ");
LEXRETURN(ALL);
@@ -2235,7 +2237,7 @@ YY_RULE_SETUP
YY_BREAK
case 40:
YY_RULE_SETUP
#line 488 "toke.l"
#line 490 "toke.l"
{
#ifdef HAVE_SELINUX
LEXTRACE("ROLE ");
@@ -2247,7 +2249,7 @@ YY_RULE_SETUP
YY_BREAK
case 41:
YY_RULE_SETUP
#line 497 "toke.l"
#line 499 "toke.l"
{
#ifdef HAVE_SELINUX
LEXTRACE("TYPE ");
@@ -2259,7 +2261,7 @@ YY_RULE_SETUP
YY_BREAK
case 42:
YY_RULE_SETUP
#line 506 "toke.l"
#line 508 "toke.l"
{
#ifndef HAVE_SELINUX
got_alias:
@@ -2272,7 +2274,7 @@ YY_RULE_SETUP
YY_BREAK
case 43:
YY_RULE_SETUP
#line 516 "toke.l"
#line 518 "toke.l"
{
/* no command args allowed for Defaults!/path */
if (!fill_cmnd(yytext, yyleng))
@@ -2283,7 +2285,7 @@ YY_RULE_SETUP
YY_BREAK
case 44:
YY_RULE_SETUP
#line 524 "toke.l"
#line 526 "toke.l"
{
BEGIN GOTCMND;
LEXTRACE("COMMAND ");
@@ -2293,7 +2295,7 @@ YY_RULE_SETUP
YY_BREAK
case 45:
YY_RULE_SETUP
#line 531 "toke.l"
#line 533 "toke.l"
{
/* directories can't have args... */
if (yytext[yyleng - 1] == '/') {
@@ -2311,7 +2313,7 @@ YY_RULE_SETUP
YY_BREAK
case 46:
YY_RULE_SETUP
#line 546 "toke.l"
#line 548 "toke.l"
{
LEXTRACE("BEGINSTR ");
yylval.string = NULL;
@@ -2321,7 +2323,7 @@ YY_RULE_SETUP
YY_BREAK
case 47:
YY_RULE_SETUP
#line 553 "toke.l"
#line 555 "toke.l"
{
/* a word */
if (!fill(yytext, yyleng))
@@ -2332,7 +2334,7 @@ YY_RULE_SETUP
YY_BREAK
case 48:
YY_RULE_SETUP
#line 561 "toke.l"
#line 563 "toke.l"
{
LEXTRACE("( ");
LEXRETURN('(');
@@ -2340,7 +2342,7 @@ YY_RULE_SETUP
YY_BREAK
case 49:
YY_RULE_SETUP
#line 566 "toke.l"
#line 568 "toke.l"
{
LEXTRACE(") ");
LEXRETURN(')');
@@ -2348,7 +2350,7 @@ YY_RULE_SETUP
YY_BREAK
case 50:
YY_RULE_SETUP
#line 571 "toke.l"
#line 573 "toke.l"
{
LEXTRACE(", ");
LEXRETURN(',');
@@ -2356,7 +2358,7 @@ YY_RULE_SETUP
YY_BREAK
case 51:
YY_RULE_SETUP
#line 576 "toke.l"
#line 578 "toke.l"
{
LEXTRACE("= ");
LEXRETURN('=');
@@ -2364,7 +2366,7 @@ YY_RULE_SETUP
YY_BREAK
case 52:
YY_RULE_SETUP
#line 581 "toke.l"
#line 583 "toke.l"
{
LEXTRACE(": ");
LEXRETURN(':');
@@ -2372,7 +2374,7 @@ YY_RULE_SETUP
YY_BREAK
case 53:
YY_RULE_SETUP
#line 586 "toke.l"
#line 588 "toke.l"
{
if (yyleng & 1) {
LEXTRACE("!");
@@ -2382,7 +2384,7 @@ YY_RULE_SETUP
YY_BREAK
case 54:
YY_RULE_SETUP
#line 593 "toke.l"
#line 595 "toke.l"
{
if (YY_START == INSTR) {
LEXTRACE("ERROR ");
@@ -2397,14 +2399,14 @@ YY_RULE_SETUP
YY_BREAK
case 55:
YY_RULE_SETUP
#line 605 "toke.l"
#line 607 "toke.l"
{ /* throw away space/tabs */
sawspace = true; /* but remember for fill_args */
}
YY_BREAK
case 56:
YY_RULE_SETUP
#line 609 "toke.l"
#line 611 "toke.l"
{
sawspace = true; /* remember for fill_args */
sudolineno++;
@@ -2413,7 +2415,7 @@ YY_RULE_SETUP
YY_BREAK
case 57:
YY_RULE_SETUP
#line 615 "toke.l"
#line 617 "toke.l"
{
BEGIN INITIAL;
sudolineno++;
@@ -2424,7 +2426,7 @@ YY_RULE_SETUP
YY_BREAK
case 58:
YY_RULE_SETUP
#line 623 "toke.l"
#line 625 "toke.l"
{
LEXTRACE("ERROR ");
LEXRETURN(ERROR);
@@ -2436,7 +2438,7 @@ case YY_STATE_EOF(GOTCMND):
case YY_STATE_EOF(STARTDEFS):
case YY_STATE_EOF(INDEFS):
case YY_STATE_EOF(INSTR):
#line 628 "toke.l"
#line 630 "toke.l"
{
if (YY_START != INITIAL) {
BEGIN INITIAL;
@@ -2449,10 +2451,10 @@ case YY_STATE_EOF(INSTR):
YY_BREAK
case 59:
YY_RULE_SETUP
#line 638 "toke.l"
#line 640 "toke.l"
ECHO;
YY_BREAK
#line 2455 "lex.yy.c"
#line 2457 "lex.yy.c"
case YY_END_OF_BUFFER:
{
@@ -3343,7 +3345,7 @@ int main()
return 0;
}
#endif
#line 638 "toke.l"
#line 640 "toke.l"
struct path_list {
char *path;

2
plugins/sudoers/toke.l
View File

@@ -102,6 +102,8 @@ int (*trace_print)(const char *msg) = sudoers_trace_print;
return (n); \
} while (0)
#define ECHO ignore_result(fwrite(yytext, yyleng, 1, yyout))
#define push_include(_p) (_push_include((_p), false))
#define push_includedir(_p) (_push_include((_p), true))
%}

13
plugins/sudoers/visudo.c
View File

@@ -563,9 +563,9 @@ install_sudoers(struct sudoersfile *sp, bool oldperms)
(void) unlink(sp->tpath);
if (!oldperms && fstat(sp->fd, &sb) != -1) {
if (sb.st_uid != SUDOERS_UID || sb.st_gid != SUDOERS_GID)
(void) chown(sp->path, SUDOERS_UID, SUDOERS_GID);
ignore_result(chown(sp->path, SUDOERS_UID, SUDOERS_GID));
if ((sb.st_mode & 0777) != SUDOERS_MODE)
(void) chmod(sp->path, SUDOERS_MODE);
ignore_result(chmod(sp->path, SUDOERS_MODE));
}
rval = true;
goto done;
@@ -1279,11 +1279,10 @@ quit(int signo)
#define emsg " exiting due to signal: "
myname = getprogname();
signame = strsignal(signo);
if (write(STDERR_FILENO, myname, strlen(myname)) == -1 ||
write(STDERR_FILENO, emsg, sizeof(emsg) - 1) == -1 ||
write(STDERR_FILENO, signame, strlen(signame)) == -1 ||
write(STDERR_FILENO, "\n", 1) == -1)
/* shut up glibc */;
ignore_result(write(STDERR_FILENO, myname, strlen(myname)));
ignore_result(write(STDERR_FILENO, emsg, sizeof(emsg) - 1));
ignore_result(write(STDERR_FILENO, signame, strlen(signame)));
ignore_result(write(STDERR_FILENO, "\n", 1));
_exit(signo);
}

32
src/env_hooks.c
View File

@@ -67,6 +67,8 @@ rpl_getenv(const char *name)
return val;
}
typedef char * (*sudo_fn_getenv_t)(const char *);
char *
getenv(const char *name)
{
@@ -79,9 +81,9 @@ getenv(const char *name)
return NULL;
default: {
#if defined(HAVE_DLOPEN) && defined(RTLD_NEXT)
char * (*fn)(const char *);
sudo_fn_getenv_t fn;
fn = dlsym(RTLD_NEXT, "getenv");
fn = (sudo_fn_getenv_t)dlsym(RTLD_NEXT, "getenv");
if (fn != NULL)
return fn(name);
#endif /* HAVE_DLOPEN && RTLD_NEXT */
@@ -132,6 +134,8 @@ rpl_putenv(PUTENV_CONST char *string)
return 0;
}
typedef int (*sudo_fn_putenv_t)(PUTENV_CONST char *);
int
putenv(PUTENV_CONST char *string)
{
@@ -142,9 +146,9 @@ putenv(PUTENV_CONST char *string)
return -1;
default: {
#if defined(HAVE_DLOPEN) && defined(RTLD_NEXT)
int (*fn)(PUTENV_CONST char *);
sudo_fn_putenv_t fn;
fn = dlsym(RTLD_NEXT, "putenv");
fn = (sudo_fn_putenv_t)dlsym(RTLD_NEXT, "putenv");
if (fn != NULL)
return fn(string);
#endif /* HAVE_DLOPEN && RTLD_NEXT */
@@ -195,6 +199,8 @@ rpl_setenv(const char *var, const char *val, int overwrite)
return rpl_putenv(envstr);
}
typedef int (*sudo_fn_setenv_t)(const char *, const char *, int);
int
setenv(const char *var, const char *val, int overwrite)
{
@@ -205,9 +211,9 @@ setenv(const char *var, const char *val, int overwrite)
return -1;
default: {
#if defined(HAVE_SETENV) && defined(HAVE_DLOPEN) && defined(RTLD_NEXT)
int (*fn)(const char *, const char *, int);
sudo_fn_setenv_t fn;
fn = dlsym(RTLD_NEXT, "setenv");
fn = (sudo_fn_setenv_t)dlsym(RTLD_NEXT, "setenv");
if (fn != NULL)
return fn(var, val, overwrite);
#endif /* HAVE_SETENV && HAVE_DLOPEN && RTLD_NEXT */
@@ -252,6 +258,12 @@ rpl_unsetenv(const char *var)
#endif
}
#ifdef UNSETENV_VOID
typedef void (*sudo_fn_unsetenv_t)(const char *);
#else
typedef int (*sudo_fn_unsetenv_t)(const char *);
#endif
#ifdef UNSETENV_VOID
void
unsetenv(const char *var)
@@ -263,9 +275,9 @@ unsetenv(const char *var)
return -1;
default: {
#if defined(HAVE_UNSETENV) && defined(HAVE_DLOPEN) && defined(RTLD_NEXT)
void (*fn)(const char *);
sudo_fn_unsetenv_t fn;
fn = dlsym(RTLD_NEXT, "unsetenv");
fn = (sudo_fn_unsetenv_t)dlsym(RTLD_NEXT, "unsetenv");
if (fn != NULL)
fn(var);
else
@@ -285,9 +297,9 @@ unsetenv(const char *var)
return -1;
default: {
#if defined(HAVE_UNSETENV) && defined(HAVE_DLOPEN) && defined(RTLD_NEXT)
int (*fn)(const char *);
sudo_fn_unsetenv_t fn;
fn = dlsym(RTLD_NEXT, "unsetenv");
fn = (sudo_fn_unsetenv_t)dlsym(RTLD_NEXT, "unsetenv");
if (fn != NULL)
return fn(var);
#endif /* HAVE_UNSETENV && HAVE_DLOPEN && RTLD_NEXT */

6
src/exec.c
View File

@@ -604,8 +604,7 @@ handler(int s)
* The pipe is non-blocking, if we overflow the kernel's pipe
* buffer we drop the signal. This is not a problem in practice.
*/
if (write(signal_pipe[1], &signo, sizeof(signo)) == -1)
/* shut up glibc */;
ignore_result(write(signal_pipe[1], &signo, sizeof(signo)));
}
#ifdef SA_SIGINFO
@@ -626,8 +625,7 @@ handler_nofwd(int s, siginfo_t *info, void *context)
* The pipe is non-blocking, if we overflow the kernel's pipe
* buffer we drop the signal. This is not a problem in practice.
*/
if (write(signal_pipe[1], &signo, sizeof(signo)) == -1)
/* shut up glibc */;
ignore_result(write(signal_pipe[1], &signo, sizeof(signo)));
}
}
#endif /* SA_SIGINFO */

9
src/exec_pty.c
View File

@@ -695,11 +695,9 @@ pty_close(struct command_status *cstat)
io_fds[SFD_USERTTY] : STDOUT_FILENO;
if (write(n, reason, strlen(reason)) != -1) {
if (WCOREDUMP(cstat->val)) {
if (write(n, " (core dumped)", 14) == -1)
/* shut up glibc */;
ignore_result(write(n, " (core dumped)", 14));
}
if (write(n, "\n", 1) == -1)
/* shut up glibc */;
ignore_result(write(n, "\n", 1));
}
}
}
@@ -961,8 +959,7 @@ exec_monitor(struct command_details *details, int backchannel)
exec_pty(details, &errpipe[1]);
cstat.type = CMD_ERRNO;
cstat.val = errno;
if (write(errpipe[1], &cstat, sizeof(cstat)) == -1)
/* shut up glibc */;
ignore_result(write(errpipe[1], &cstat, sizeof(cstat)));
_exit(1);
}
close(errpipe[1]);

3
src/tgetpass.c
View File

@@ -298,8 +298,7 @@ getln(int fd, char *buf, size_t bufsiz, int feedback)
}
continue;
}
if (write(fd, "*", 1) == -1)
/* shut up glibc */;
ignore_result(write(fd, "*", 1));
}
*cp++ = c;
}