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Diffstat (limited to 'builtin-grep.c')
-rw-r--r--builtin-grep.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/builtin-grep.c b/builtin-grep.c
index e4f06f2b3a..694da5ba09 100644
--- a/builtin-grep.c
+++ b/builtin-grep.c
@@ -122,6 +122,8 @@ static int grep_file(struct grep_opt *opt, const char *filename)
struct stat st;
int i;
char *data;
+ size_t sz;
+
if (lstat(filename, &st) < 0) {
err_ret:
if (errno != ENOENT)
@@ -132,11 +134,12 @@ static int grep_file(struct grep_opt *opt, const char *filename)
return 0; /* empty file -- no grep hit */
if (!S_ISREG(st.st_mode))
return 0;
+ sz = xsize_t(st.st_size);
i = open(filename, O_RDONLY);
if (i < 0)
goto err_ret;
- data = xmalloc(st.st_size + 1);
- if (st.st_size != read_in_full(i, data, st.st_size)) {
+ data = xmalloc(sz + 1);
+ if (st.st_size != read_in_full(i, data, sz)) {
error("'%s': short read %s", filename, strerror(errno));
close(i);
free(data);
@@ -145,7 +148,7 @@ static int grep_file(struct grep_opt *opt, const char *filename)
close(i);
if (opt->relative && opt->prefix_length)
filename += opt->prefix_length;
- i = grep_buffer(opt, filename, data, st.st_size);
+ i = grep_buffer(opt, filename, data, sz);
free(data);
return i;
}