part 2: don’t stop using the history if the file has been truncated
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11
histrap.c
11
histrap.c
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@ -27,7 +27,7 @@
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#include <sys/file.h>
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#include <sys/file.h>
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#endif
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#endif
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__RCSID("$MirOS: src/bin/mksh/histrap.c,v 1.163 2017/08/07 20:40:57 tg Exp $");
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__RCSID("$MirOS: src/bin/mksh/histrap.c,v 1.164 2017/08/07 20:43:00 tg Exp $");
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Trap sigtraps[ksh_NSIG + 1];
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Trap sigtraps[ksh_NSIG + 1];
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static struct sigaction Sigact_ign;
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static struct sigaction Sigact_ign;
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@ -963,10 +963,11 @@ writehistfile(int lno, const char *cmd)
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mksh_lockfd(histfd);
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mksh_lockfd(histfd);
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sizenow = lseek(histfd, (off_t)0, SEEK_END);
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sizenow = lseek(histfd, (off_t)0, SEEK_END);
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if (sizenow < histfsize) {
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if (sizenow < histfsize) {
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/* the file has shrunk; give up */
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/* the file has shrunk; trust it just appending the new data */
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goto bad;
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/* well, for now, anyway… since mksh strdups all into memory */
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}
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/* we can use a nicer approach some time later… */
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if (
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;
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} else if (
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/* ignore changes when the file is too large */
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/* ignore changes when the file is too large */
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sizenow <= MKSH_MAXHISTFSIZE
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sizenow <= MKSH_MAXHISTFSIZE
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&&
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&&
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