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Fix r_sys_sigaction not setting up the requested signals (#15440)

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The for loop's iterator was initialized with the first member of sig[]
instead of 0. Added an error to avoid this issue going unnoticed.
This commit is contained in:
yossizap 2019-11-10 13:37:17 +02:00 committed by radare
parent 8c0f5268e3
commit ccf42d7c45
1 changed files with 5 additions and 3 deletions
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8
libr/util/sys.c
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@ -155,13 +155,14 @@ R_API int r_sys_sigaction(int *sig, void (*handler) (int)) {
sigact.sa_handler = handler;
sigemptyset (&sigact.sa_mask);
for (i = sig[0]; sig[i] != 0; i++) {
for (i = 0; sig[i] != 0; i++) {
sigaddset (&sigact.sa_mask, sig[i]);
}
for (i = sig[0]; sig[i] != 0; i++) {
for (i = 0; sig[i] != 0; i++) {
ret = sigaction (sig[i], &sigact, NULL);
if (ret) {
eprintf ("Failed to set signal handler for signal '%d': %s\n", sig[i], strerror(errno));
return ret;
}
}
@ -176,9 +177,10 @@ R_API int r_sys_sigaction(int *sig, void (*handler) (int)) {
return -EINVAL;
}
for (i = sig[0]; sig[i] != 0; i++) {
for (i = 0; sig[i] != 0; i++) {
ret = signal (sig[i], handler);
if (ret == SIG_ERR) {
eprintf ("Failed to set signal handler for signal '%d': %s\n", sig[i], strerror(errno));
return -1;
}
}