diff options
| author | June McEnroe <june@causal.agency> | 2019-01-19 00:04:06 -0500 |
|---|---|---|
| committer | June McEnroe <june@causal.agency> | 2019-01-19 00:04:06 -0500 |
| commit | 8f97b95aee84aba6d4c8869a7a9eb98e446e9b32 (patch) | |
| tree | a4a23ac94bcc3d1582c7982e363ea0bda4434d6a /bin/cash/libedit/history.c | |
| parent | Add H_SAVE_INCR function to libedit (diff) | |
| download | src-8f97b95aee84aba6d4c8869a7a9eb98e446e9b32.tar.gz src-8f97b95aee84aba6d4c8869a7a9eb98e446e9b32.zip | |
Take event number for save incr
ev cannot be used for input, as the first thing history() does is clear it.
Diffstat (limited to '')
| -rw-r--r-- | bin/cash/libedit/history.c | 32 |
1 files changed, 22 insertions, 10 deletions
diff --git a/bin/cash/libedit/history.c b/bin/cash/libedit/history.c index bb5a654f..a8967088 100644 --- a/bin/cash/libedit/history.c +++ b/bin/cash/libedit/history.c @@ -894,8 +894,9 @@ history_save(TYPE(History) *h, const char *fname) static int -history_save_fp_incr(TYPE(History) *h, TYPE(HistEvent) *ev, FILE *fp) +history_save_fp_incr(TYPE(History) *h, FILE *fp, int num) { + TYPE(HistEvent) ev; char *line = NULL; char *ptr; const char *str; @@ -907,6 +908,12 @@ history_save_fp_incr(TYPE(History) *h, TYPE(HistEvent) *ev, FILE *fp) static ct_buffer_t conv; #endif + for (retval = HCURR(h, &ev); retval != -1; retval = HNEXT(h, &ev)) + if (ev.num == num) + break; + if (retval == -1) + goto done; + if (flock(fileno(fp), LOCK_EX) == -1) goto done; if (fchmod(fileno(fp), S_IRUSR|S_IWUSR) == -1) @@ -914,8 +921,12 @@ history_save_fp_incr(TYPE(History) *h, TYPE(HistEvent) *ev, FILE *fp) if (fseek(fp, 0, SEEK_SET) == -1) goto done; - if ((sz = getline(&line, &llen, fp)) == -1) - goto done; + if ((sz = getline(&line, &llen, fp)) == -1) { + if (ferror(fp)) + goto done; + else + sz = 0; + } if (strncmp(line, hist_cookie, (size_t)sz) != 0) goto done; if (fseek(fp, 0, SEEK_END) == -1) @@ -927,10 +938,10 @@ history_save_fp_incr(TYPE(History) *h, TYPE(HistEvent) *ev, FILE *fp) ptr = h_malloc((max_size = 1024) * sizeof(*ptr)); if (ptr == NULL) goto done; - for (i = 0, retval = HPREV(h, ev); + for (i = 0, retval = 0; retval != -1; - retval = HPREV(h, ev), i++) { - str = ct_encode_string(ev->str, &conv); + retval = HPREV(h, &ev), i++) { + str = ct_encode_string(ev.str, &conv); len = strlen(str) * 4 + 1; if (len > max_size) { char *nptr; @@ -948,13 +959,14 @@ history_save_fp_incr(TYPE(History) *h, TYPE(HistEvent) *ev, FILE *fp) oomem: h_free(ptr); done: + free(line); (void) flock(fileno(fp), LOCK_UN); return i; } static int -history_save_incr(TYPE(History) *h, TYPE(HistEvent) *ev, const char *fname) +history_save_incr(TYPE(History) *h, const char *fname, int num) { FILE *fp; int i; @@ -962,7 +974,7 @@ history_save_incr(TYPE(History) *h, TYPE(HistEvent) *ev, const char *fname) if ((fp = fopen(fname, "a+")) == NULL) return -1; - i = history_save_fp_incr(h, ev, fp); + i = history_save_fp_incr(h, fp, num); (void) fclose(fp); return i; @@ -1150,7 +1162,7 @@ FUNW(history)(TYPE(History) *h, TYPE(HistEvent) *ev, int fun, ...) break; case H_SAVE_INCR: - retval = history_save_incr(h, ev, va_arg(va, const char *)); + retval = history_save_incr(h, va_arg(va, const char *), va_arg(va, int)); if (retval == -1) he_seterrev(ev, _HE_HIST_WRITE); break; @@ -1162,7 +1174,7 @@ FUNW(history)(TYPE(History) *h, TYPE(HistEvent) *ev, int fun, ...) break; case H_SAVE_FP_INCR: - retval = history_save_fp_incr(h, ev, va_arg(va, FILE *)); + retval = history_save_fp_incr(h, va_arg(va, FILE *), va_arg(va, int)); if (retval == -1) he_seterrev(ev, _HE_HIST_WRITE); break; |