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secure strscpy by replacing with strncpy

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Michael Stapelberg 2011-07-23 22:22:36 +02:00
parent a402480ad0
commit fdd098b010
3 changed files with 3 additions and 3 deletions
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2
i3-input/ipc.c
View File

@ -60,7 +60,7 @@ int connect_ipc(char *socket_path) {
struct sockaddr_un addr;
memset(&addr, 0, sizeof(struct sockaddr_un));
addr.sun_family = AF_LOCAL;
strcpy(addr.sun_path, socket_path);
strncpy(addr.sun_path, socket_path, sizeof(addr.sun_path) - 1);
if (connect(sockfd, (const struct sockaddr*)&addr, sizeof(struct sockaddr_un)) < 0)
err(EXIT_FAILURE, "Could not connect to i3");

2
i3-msg/main.c
View File

@ -231,7 +231,7 @@ int main(int argc, char *argv[]) {
struct sockaddr_un addr;
memset(&addr, 0, sizeof(struct sockaddr_un));
addr.sun_family = AF_LOCAL;
strcpy(addr.sun_path, socket_path);
strncpy(addr.sun_path, socket_path, sizeof(addr.sun_path) - 1);
if (connect(sockfd, (const struct sockaddr*)&addr, sizeof(struct sockaddr_un)) < 0)
err(EXIT_FAILURE, "Could not connect to i3");

2
src/ipc.c
View File

@ -77,7 +77,7 @@ static void ipc_send_message(int fd, const unsigned char *payload,
char msg[buffer_size];
char *walk = msg;
strcpy(walk, "i3-ipc");
strncpy(walk, "i3-ipc", buffer_size - 1);
walk += strlen("i3-ipc");
memcpy(walk, &message_size, sizeof(uint32_t));
walk += sizeof(uint32_t);