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40453: signal handler safety for callers of patcompile(PAT_STATIC), which is not re-entrant.

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This commit is contained in:
Barton E. Schaefer 2017-01-29 08:30:14 -08:00
parent 0672c75359
commit e51c9c17af
13 changed files with 126 additions and 42 deletions
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5
Src/cond.c
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@ -295,6 +295,8 @@ evalcond(Estate state, char *fromtest)
int test, npat = state->pc[1];
Patprog pprog = state->prog->pats[npat];
queue_signals();
if (pprog == dummy_patprog1 || pprog == dummy_patprog2) {
char *opat;
int save;
@ -308,6 +310,7 @@ evalcond(Estate state, char *fromtest)
if (!(pprog = patcompile(right, (save ? PAT_ZDUP : PAT_STATIC),
NULL))) {
zwarnnam(fromtest, "bad pattern: %s", right);
unqueue_signals();
return 2;
}
else if (save)
@ -316,6 +319,8 @@ evalcond(Estate state, char *fromtest)
state->pc += 2;
test = (pprog && pattry(pprog, left));
unqueue_signals();
return !(ctype == COND_STRNEQ ? !test : test);
}
case COND_STRLT: