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| author | Denys Vlasenko | 2020-02-17 16:20:05 +0100 |
|---|---|---|
| committer | Denys Vlasenko | 2020-02-17 16:20:05 +0100 |
| commit | 22c75924daa41b7ea097796afd4baafa2fc99d05 (patch) | |
| tree | 8e57f30bb01cf0356344c27b5c78d4c3d72c776c | |
| parent | 6c4f87e411aa5375eaea5a5909a5c610e38c7e70 (diff) | |
| download | busybox-22c75924daa41b7ea097796afd4baafa2fc99d05.zip busybox-22c75924daa41b7ea097796afd4baafa2fc99d05.tar.gz | |
ash: exec: Never rehash regular built-ins
Upstream commit:
Date: Sat, 19 May 2018 02:39:51 +0800
exec: Never rehash regular built-ins
As regular (including special) built-ins can never be overridden,
we should never remove them from the hash table.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| -rw-r--r-- | shell/ash.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/shell/ash.c b/shell/ash.c index c383ccc..389db3c 100644 --- a/shell/ash.c +++ b/shell/ash.c @@ -8284,7 +8284,10 @@ clearcmdentry(void) pp = tblp; while ((cmdp = *pp) != NULL) { if (cmdp->cmdtype == CMDNORMAL - || (cmdp->cmdtype == CMDBUILTIN && builtinloc > 0) + || (cmdp->cmdtype == CMDBUILTIN + && !IS_BUILTIN_REGULAR(cmdp->param.cmd) + && builtinloc > 0 + ) ) { *pp = cmdp->next; free(cmdp); @@ -8403,7 +8406,11 @@ hashcmd(int argc UNUSED_PARAM, char **argv UNUSED_PARAM) cmdp = cmdlookup(name, 0); if (cmdp != NULL && (cmdp->cmdtype == CMDNORMAL - || (cmdp->cmdtype == CMDBUILTIN && builtinloc >= 0)) + || (cmdp->cmdtype == CMDBUILTIN + && !IS_BUILTIN_REGULAR(cmdp->param.cmd) + && builtinloc > 0 + ) + ) ) { delete_cmd_entry(); } @@ -13556,7 +13563,7 @@ find_command(char *name, struct cmdentry *entry, int act, const char *path) bit = DO_NOFUNC; break; case CMDBUILTIN: - bit = DO_ALTBLTIN; + bit = IS_BUILTIN_REGULAR(cmdp->param.cmd) ? 0 : DO_ALTBLTIN; break; } if (act & bit) { |