86 lines
2.8 KiB
Diff
86 lines
2.8 KiB
Diff
--- proc/readproc.c
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+++ proc/readproc.c 2013-05-29 10:55:48.129939330 +0000
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@@ -544,7 +544,7 @@ static int file2str(const char *director
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if (ub->buf) ub->buf[0] = '\0';
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else ub->buf = xcalloc((ub->siz = buffGRW));
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sprintf(path, "%s/%s", directory, what);
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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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@@ -559,41 +559,42 @@ 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;
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- int fd, tot = 0, n, c, end_of_file = 0;
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- int align;
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+ char *p, *rbuf = (char*)0, *endbuf, **q, **ret;
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+ int fd, c;
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+ ssize_t n, align, tot = 0;
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sprintf(buf, "%s/%s", directory, what);
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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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- end_of_file = 1;
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- if (n == 0 && rbuf == 0) {
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- close(fd);
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- return NULL; /* process died between our open and read */
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- }
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+ do {
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+ n = read(fd, buf, sizeof(buf) - 1);
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if (n < 0) {
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- if (rbuf)
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- free(rbuf);
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- close(fd);
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- return NULL; /* read error */
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+ tot = 0;
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+ break; /* read error! */
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+ }
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+ if (n == 0) {
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+ if(rbuf == (char*)0)
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+ tot = 0; /* process died between our open and read */
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+ break; /* we're done */
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}
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- if (end_of_file && (n == 0 || buf[n-1]))/* last read char not null */
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- buf[n++] = '\0'; /* so append null-terminator */
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rbuf = xrealloc(rbuf, tot + n); /* allocate more memory */
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memcpy(rbuf + tot, buf, n); /* copy buffer into it */
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tot += n; /* increment total byte ctr */
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- if (end_of_file)
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- break;
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- }
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+ } while (n >= (sizeof(buf) - 1));
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+
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close(fd);
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- if (n <= 0 && !end_of_file) {
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+
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+ if (tot == 0) {
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if (rbuf) free(rbuf);
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- return NULL; /* read error */
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+ return NULL; /* read error */
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+ }
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+ if (rbuf[tot-1]) { /* last read char not null */
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+ rbuf = xrealloc(rbuf, tot + 1); /* allocate more memory */
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+ rbuf[tot++] = '\0'; /* and append null-terminator */
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}
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+
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endbuf = rbuf + tot; /* count space for pointers */
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align = (sizeof(char*)-1) - ((tot + sizeof(char*)-1) & (sizeof(char*)-1));
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for (c = 0, p = rbuf; p < endbuf; p++) {
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@@ -626,7 +627,7 @@ static int read_unvectored(char *restric
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unsigned n = 0;
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snprintf(path, sizeof(path), "%s/%s", whom, what);
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- fd = open(path, O_RDONLY);
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+ fd = open(path, O_RDONLY, O_NOATIME);
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if(fd==-1) return 0;
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for(;;){
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