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Linux specific modifications:
- #include stdint.h for uint32_t
- #define timespeccmp() which is sys/time.h in OpenBSD
- Linux doesn't have any LOCK flags for open(2), so use flock(2) instead
--- ../ksh-openbsd49/history.c 2011-09-01 08:09:51.486181269 +0200
+++ history.c 2011-09-01 08:08:59.657181265 +0200
@@ -17,11 +17,17 @@
#include "sh.h"
#include <sys/stat.h>
#include "strlcat.h"
+#include "stdint.h"
#ifdef HISTORY
# include <sys/file.h>
# include <sys/mman.h>
+#define timespeccmp(tsp, usp, cmp) \
+ (((tsp)->tv_sec == (usp)->tv_sec) ? \
+ ((tsp)->tv_nsec cmp (usp)->tv_nsec) : \
+ ((tsp)->tv_sec cmp (usp)->tv_sec))
+
static void writehistfile(FILE *);
static FILE *history_open(int *);
static int history_load(FILE *, Source *);
@@ -604,7 +610,9 @@
FILE *f = NULL;
struct stat sb;
- if ((fd = open(hname, O_RDWR | O_CREAT | O_EXLOCK, 0600)) == -1)
+ if ((fd = open(hname, O_RDWR | O_CREAT, 0600)) == -1)
+ return (NULL);
+ if (flock(fd, LOCK_EX) == -1)
return (NULL);
f = fdopen(fd, "r+");
if (f == NULL) {
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