[PATCH] Fix parsing of /sys/devices/system/cpu/online (bug 27038)
Andreas Schwab
schwab@linux-m68k.org
Wed Dec 9 14:09:37 GMT 2020
The file contains comma-separated ranges, not spaces.
---
sysdeps/unix/sysv/linux/getsysstats.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/sysdeps/unix/sysv/linux/getsysstats.c b/sysdeps/unix/sysv/linux/getsysstats.c
index 1ef077f9af..a9069b7056 100644
--- a/sysdeps/unix/sysv/linux/getsysstats.c
+++ b/sysdeps/unix/sysv/linux/getsysstats.c
@@ -143,6 +143,7 @@ __get_nprocs (void)
char *re = buffer_end;
const int flags = O_RDONLY | O_CLOEXEC;
+ /* This file contains comma-separated ranges. */
int fd = __open_nocancel ("/sys/devices/system/cpu/online", flags);
char *l;
int result = 0;
@@ -175,10 +176,10 @@ __get_nprocs (void)
result += m - n + 1;
l = endp;
- while (l < re && isspace (*l))
+ if (l < re && *l == ',')
++l;
}
- while (l < re);
+ while (l < re && *l != '\n');
__close_nocancel_nostatus (fd);
--
2.29.2
--
Andreas Schwab, schwab@linux-m68k.org
GPG Key fingerprint = 7578 EB47 D4E5 4D69 2510 2552 DF73 E780 A9DA AEC1
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