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| author | Peter Stephenson <pws@zsh.org> | 2015-07-23 09:32:24 +0100 |
|---|---|---|
| committer | Peter Stephenson <pws@zsh.org> | 2015-07-23 09:32:24 +0100 |
| commit | 49ff2e00dc3787b3575f392f53d90774f1dbbdce (patch) | |
| tree | 788fb7477cba7838d283d8cf86c872c37a847f0c /Src/hist.c | |
| parent | 9a82a8675782f137c8739bc950ac86dfe6a8dfd1 (diff) | |
| download | zsh-49ff2e00dc3787b3575f392f53d90774f1dbbdce.tar.gz zsh-49ff2e00dc3787b3575f392f53d90774f1dbbdce.tar.xz zsh-49ff2e00dc3787b3575f392f53d90774f1dbbdce.zip | |
35854: ensure history character unget doesn't recurse infinitely
Diffstat (limited to 'Src/hist.c')
| -rw-r--r-- | Src/hist.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/Src/hist.c b/Src/hist.c index 672531394..cf224cb4e 100644 --- a/Src/hist.c +++ b/Src/hist.c @@ -136,6 +136,7 @@ mod_export int hist_skip_flags; #define HA_NOINC (1<<1) /* Don't store, curhist not incremented */ #define HA_INWORD (1<<2) /* We're inside a word, don't add start and end markers */ +#define HA_UNGET (1<<3) /* Recursively ungetting */ /* Array of word beginnings and endings in current history line. */ @@ -904,8 +905,13 @@ ihungetc(int c) while (!lexstop && !errflag) { if (hptr[-1] != (char) c && stophist < 4 && - hptr > chline + 1 && hptr[-1] == '\n' && hptr[-2] == '\\') - hungetc('\n'), hungetc('\\'); + hptr > chline + 1 && hptr[-1] == '\n' && hptr[-2] == '\\' && + !(histactive & HA_UNGET)) { + histactive |= HA_UNGET; + hungetc('\n'); + hungetc('\\'); + histactive &= ~HA_UNGET; + } if (expanding) { zlemetacs--; |