procps/procps-ng-3.3.8-readeof.patch

---
 proc/readproc.c |   20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

--- proc/readproc.c
+++ proc/readproc.c	2018-06-05 08:54:06.408030693 +0000
@@ -675,7 +675,7 @@ static int file2str(const char *director
     else ub->buf = xcalloc((ub->siz = buffGRW));
     len = snprintf(path, sizeof path, "%s/%s", directory, what);
     if (len <= 0 || (size_t)len >= sizeof path) return -1;
-    if (-1 == (fd = open(path, O_RDONLY, 0))) return -1;
+    if (-1 == (fd = open(path, O_RDONLY, O_NOATIME))) return -1;
     while (0 < (num = read(fd, ub->buf + tot_read, ub->siz - tot_read))) {
         tot_read += num;
         if (tot_read < ub->siz) break;
@@ -695,25 +695,25 @@ static int file2str(const char *director
 static char** file2strvec(const char* directory, const char* what) {
     char buf[2048];	/* read buf bytes at a time */
     char *p, *rbuf = 0, *endbuf, **q, **ret, *strp;
-    int fd, tot = 0, n, c, end_of_file = 0;
-    int align;
+    int fd, c, end_of_file = 0;
+    ssize_t n, align, tot = 0;
 
     const int len = snprintf(buf, sizeof buf, "%s/%s", directory, what);
     if(len <= 0 || (size_t)len >= sizeof buf) return NULL;
-    fd = open(buf, O_RDONLY, 0);
+    fd = open(buf, O_RDONLY, O_NOATIME);
     if(fd==-1) return NULL;
 
     /* read whole file into a memory buffer, allocating as we go */
     while ((n = read(fd, buf, sizeof buf - 1)) >= 0) {
-	if (n < (int)(sizeof buf - 1))
+	if (n < sizeof buf - 1)
 	    end_of_file = 1;
-	if (n <= 0 && tot <= 0) { /* nothing read now, nothing read before */
+	if (n <= 0 && tot <= 0) /* nothing read now, nothing read before */
 	    break;		/* process died between our open and read */
-	}
+
 	/* ARG_LEN is our guesstimated median length of a command-line argument
 	   or environment variable (the minimum is 1, the maximum is 131072) */
 	#define ARG_LEN 64
-	if (tot >= INT_MAX / (ARG_LEN + (int)sizeof(char*)) * ARG_LEN - n) {
+	if (tot >= INT_MAX / (ARG_LEN + sizeof(char*)) * ARG_LEN - n) {
 	    end_of_file = 1; /* integer overflow: null-terminate and break */
 	    n = 0; /* but tot > 0 */
 	}
@@ -741,7 +741,7 @@ static char** file2strvec(const char* di
     c = sizeof(char*);				/* one extra for NULL term */
     for (p = rbuf; p < endbuf; p++) {
 	if (!*p || *p == '\n') {
-	    if (c >= INT_MAX - (tot + (int)sizeof(char*) + align)) break;
+	    if (c >= INT_MAX - (tot + sizeof(char*) + align)) break;
 	    c += sizeof(char*);
 	}
 	if (*p == '\n')
@@ -753,7 +753,7 @@ static char** file2strvec(const char* di
     q = ret = (char**) (endbuf+align);		/* ==> free(*ret) to dealloc */
     for (strp = p = rbuf; p < endbuf; p++) {
 	if (!*p) {				/* NUL char implies that */
-	    if (c < 2 * (int)sizeof(char*)) break;
+	    if (c < 2 * sizeof(char*)) break;
 	    c -= sizeof(char*);
 	    *q++ = strp;			/* point ptrs to the strings */
 	    strp = p+1;				/* next string -> next char */