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Fix: sessiond: fix possible buffer overflow warning
[lttng-tools.git]
/
src
/
bin
/
lttng-sessiond
/
lttng-syscall.c
diff --git
a/src/bin/lttng-sessiond/lttng-syscall.c
b/src/bin/lttng-sessiond/lttng-syscall.c
index ccd8f25e679b51e2cb05265c315dcfa163dab299..06021bcf5e7af4454412f575c11f209b2c6346cf 100644
(file)
--- a/
src/bin/lttng-sessiond/lttng-syscall.c
+++ b/
src/bin/lttng-sessiond/lttng-syscall.c
@@
-39,6
+39,10
@@
int syscall_init_table(int tracer_fd)
uint32_t bitness;
char name[SYSCALL_NAME_LEN];
uint32_t bitness;
char name[SYSCALL_NAME_LEN];
+#if (SYSCALL_NAME_LEN == 255)
+#define SYSCALL_NAME_LEN_SCANF_IS_A_BROKEN_API "254"
+#endif
+
DBG3("Syscall init system call table");
fd = kernctl_syscall_list(tracer_fd);
DBG3("Syscall init system call table");
fd = kernctl_syscall_list(tracer_fd);
@@
-65,7
+69,7
@@
int syscall_init_table(int tracer_fd)
while (fscanf(fp,
"syscall { index = %zu; \
while (fscanf(fp,
"syscall { index = %zu; \
- name = %"
XSTR(SYSCALL_NAME_LEN)
"[^;]; \
+ name = %"
SYSCALL_NAME_LEN_SCANF_IS_A_BROKEN_API
"[^;]; \
bitness = %u; };\n",
&index, name, &bitness) == 3) {
at_least_one_syscall = true;
bitness = %u; };\n",
&index, name, &bitness) == 3) {
at_least_one_syscall = true;
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