67 lines
2.8 KiB
Diff
67 lines
2.8 KiB
Diff
---
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proc/readproc.c | 20 ++++++++++----------
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1 file changed, 10 insertions(+), 10 deletions(-)
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--- proc/readproc.c
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+++ proc/readproc.c 2018-06-05 08:54:06.408030693 +0000
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@@ -675,7 +675,7 @@ static int file2str(const char *director
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else ub->buf = xcalloc((ub->siz = buffGRW));
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len = snprintf(path, sizeof path, "%s/%s", directory, what);
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if (len <= 0 || (size_t)len >= sizeof path) return -1;
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- if (-1 == (fd = open(path, O_RDONLY, 0))) return -1;
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+ if (-1 == (fd = open(path, O_RDONLY, O_NOATIME))) return -1;
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while (0 < (num = read(fd, ub->buf + tot_read, ub->siz - tot_read))) {
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tot_read += num;
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if (tot_read < ub->siz) break;
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@@ -695,25 +695,25 @@ static int file2str(const char *director
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static char** file2strvec(const char* directory, const char* what) {
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char buf[2048]; /* read buf bytes at a time */
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char *p, *rbuf = 0, *endbuf, **q, **ret, *strp;
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- int fd, tot = 0, n, c, end_of_file = 0;
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- int align;
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+ int fd, c, end_of_file = 0;
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+ ssize_t n, align, tot = 0;
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const int len = snprintf(buf, sizeof buf, "%s/%s", directory, what);
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if(len <= 0 || (size_t)len >= sizeof buf) return NULL;
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- fd = open(buf, O_RDONLY, 0);
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+ fd = open(buf, O_RDONLY, O_NOATIME);
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if(fd==-1) return NULL;
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/* read whole file into a memory buffer, allocating as we go */
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while ((n = read(fd, buf, sizeof buf - 1)) >= 0) {
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- if (n < (int)(sizeof buf - 1))
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+ if (n < sizeof buf - 1)
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end_of_file = 1;
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- if (n <= 0 && tot <= 0) { /* nothing read now, nothing read before */
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+ if (n <= 0 && tot <= 0) /* nothing read now, nothing read before */
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break; /* process died between our open and read */
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- }
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+
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/* ARG_LEN is our guesstimated median length of a command-line argument
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or environment variable (the minimum is 1, the maximum is 131072) */
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#define ARG_LEN 64
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- if (tot >= INT_MAX / (ARG_LEN + (int)sizeof(char*)) * ARG_LEN - n) {
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+ if (tot >= INT_MAX / (ARG_LEN + sizeof(char*)) * ARG_LEN - n) {
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end_of_file = 1; /* integer overflow: null-terminate and break */
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n = 0; /* but tot > 0 */
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}
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@@ -741,7 +741,7 @@ static char** file2strvec(const char* di
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c = sizeof(char*); /* one extra for NULL term */
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for (p = rbuf; p < endbuf; p++) {
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if (!*p || *p == '\n') {
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- if (c >= INT_MAX - (tot + (int)sizeof(char*) + align)) break;
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+ if (c >= INT_MAX - (tot + sizeof(char*) + align)) break;
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c += sizeof(char*);
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}
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if (*p == '\n')
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@@ -753,7 +753,7 @@ static char** file2strvec(const char* di
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q = ret = (char**) (endbuf+align); /* ==> free(*ret) to dealloc */
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for (strp = p = rbuf; p < endbuf; p++) {
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if (!*p) { /* NUL char implies that */
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- if (c < 2 * (int)sizeof(char*)) break;
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+ if (c < 2 * sizeof(char*)) break;
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c -= sizeof(char*);
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*q++ = strp; /* point ptrs to the strings */
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strp = p+1; /* next string -> next char */
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