Signed-off-by: Sven Eckelmann <[email protected]>
---
 debugfs.c          |  4 +---
 gpsd/alfred-gpsd.c |  9 +++------
 netsock.c          | 12 ++++++------
 recv.c             |  3 +--
 server.c           | 11 ++++-------
 unix_sock.c        | 21 +++++++--------------
 vis/vis.c          | 10 ++++------
 7 files changed, 26 insertions(+), 44 deletions(-)

diff --git a/debugfs.c b/debugfs.c
index 4b8801a..fbf992e 100644
--- a/debugfs.c
+++ b/debugfs.c
@@ -89,9 +89,7 @@ static const char *debugfs_find_mountpoint(void)
        /* give up and parse /proc/mounts */
        fp = fopen("/proc/mounts", "r");
        if (fp == NULL) {
-               fprintf(stderr,
-                       "Error - can't open /proc/mounts for read: %s\n",
-                       strerror(errno));
+               perror("Error - can't open /proc/mounts for read");
                return NULL;
        }
 
diff --git a/gpsd/alfred-gpsd.c b/gpsd/alfred-gpsd.c
index 06c0680..6e88dc7 100644
--- a/gpsd/alfred-gpsd.c
+++ b/gpsd/alfred-gpsd.c
@@ -29,8 +29,7 @@ static int alfred_open_sock(struct globals *globals)
 
        globals->unix_sock = socket(AF_LOCAL, SOCK_STREAM, 0);
        if (globals->unix_sock < 0) {
-               fprintf(stderr, "can't create unix socket: %s\n",
-                       strerror(errno));
+               perror("can't create unix socket");
                return -1;
        }
 
@@ -41,8 +40,7 @@ static int alfred_open_sock(struct globals *globals)
 
        if (connect(globals->unix_sock, (struct sockaddr *)&addr,
                    sizeof(addr)) < 0) {
-               fprintf(stderr, "can't connect to unix socket: %s\n",
-                       strerror(errno));
+               perror("can't connect to unix socket");
                return -1;
        }
 
@@ -514,8 +512,7 @@ static int gpsd_server(struct globals *globals)
                        errno = 0;
                        ret = select(max_fd, &fds, NULL, NULL, &tv);
                        if (ret == -1 && errno != EINTR)
-                               printf("select error %s(%d)\n",
-                                      strerror(errno), errno);
+                               perror("select error");
 
                        if (ret == 1)
                                gpsd_read_gpsd(globals);
diff --git a/netsock.c b/netsock.c
index 305983f..a1a97e4 100644
--- a/netsock.c
+++ b/netsock.c
@@ -54,7 +54,7 @@ int netsock_open(struct globals *globals)
 
        sock = socket(PF_INET6, SOCK_DGRAM, 0);
        if (sock  < 0) {
-               fprintf(stderr, "can't open socket: %s\n", strerror(errno));
+               perror("can't open socket");
                return -1;
        }
 
@@ -62,7 +62,7 @@ int netsock_open(struct globals *globals)
        strncpy(ifr.ifr_name, globals->interface, IFNAMSIZ);
        ifr.ifr_name[IFNAMSIZ - 1] = '\0';
        if (ioctl(sock, SIOCGIFINDEX, &ifr) == -1) {
-               fprintf(stderr, "can't get interface: %s\n", strerror(errno));
+               perror("can't get interface");
                goto err;
        }
 
@@ -75,7 +75,7 @@ int netsock_open(struct globals *globals)
        sin6.sin6_scope_id = ifr.ifr_ifindex;
 
        if (ioctl(sock, SIOCGIFHWADDR, &ifr) == -1) {
-               fprintf(stderr, "can't get MAC address: %s\n", strerror(errno));
+               perror("can't get MAC address");
                goto err;
        }
 
@@ -83,19 +83,19 @@ int netsock_open(struct globals *globals)
        mac_to_ipv6(&globals->hwaddr, &globals->address);
 
        if (bind(sock, (struct sockaddr *)&sin6, sizeof(sin6)) < 0) {
-               fprintf(stderr, "can't bind\n");
+               perror("can't bind");
                goto err;
        }
 
        ret = fcntl(sock, F_GETFL, 0);
        if (ret < 0) {
-               fprintf(stderr, "failed to get file status flags\n");
+               perror("failed to get file status flags");
                goto err;
        }
 
        ret = fcntl(sock, F_SETFL, ret | O_NONBLOCK);
        if (ret < 0) {
-               fprintf(stderr, "failed to set file status flags\n");
+               perror("failed to set file status flags");
                goto err;
        }
 
diff --git a/recv.c b/recv.c
index 724c551..2948547 100644
--- a/recv.c
+++ b/recv.c
@@ -385,8 +385,7 @@ int recv_alfred_packet(struct globals *globals)
        length = recvfrom(globals->netsock, buf, sizeof(buf), 0,
                          (struct sockaddr *)&source, &sourcelen);
        if (length <= 0) {
-               fprintf(stderr, "read from network socket failed: %s\n",
-                       strerror(errno));
+               perror("read from network socket failed");
                return -1;
        }
 
diff --git a/server.c b/server.c
index b060d55..94e6145 100644
--- a/server.c
+++ b/server.c
@@ -236,7 +236,7 @@ static void check_if_socket(struct globals *globals)
 
        sock = socket(PF_INET6, SOCK_DGRAM, 0);
        if (sock < 0) {
-               fprintf(stderr, "can't open socket: %s\n", strerror(errno));
+               perror("can't open socket");
                return;
        }
 
@@ -244,8 +244,7 @@ static void check_if_socket(struct globals *globals)
        strncpy(ifr.ifr_name, globals->interface, IFNAMSIZ);
        ifr.ifr_name[IFNAMSIZ - 1] = '\0';
        if (ioctl(sock, SIOCGIFINDEX, &ifr) == -1) {
-               fprintf(stderr, "can't get interface: %s, closing netsock\n",
-                       strerror(errno));
+               perror("can't get interface, closing netsock");
                goto close;
        }
 
@@ -257,8 +256,7 @@ static void check_if_socket(struct globals *globals)
        }
 
        if (ioctl(sock, SIOCGIFHWADDR, &ifr) == -1) {
-               fprintf(stderr, "can't get MAC address: %s, closing netsock\n",
-                       strerror(errno));
+               perror("can't get MAC address, closing netsock");
                goto close;
        }
 
@@ -330,8 +328,7 @@ int alfred_server(struct globals *globals)
                ret = pselect(maxsock + 1, &fds, NULL, &errfds, &tv, NULL);
 
                if (ret == -1) {
-                       fprintf(stderr, "main loop select failed ...: %s\n",
-                               strerror(errno));
+                       perror("main loop select failed ...");
                } else if (ret) {
                        if (globals->netsock >= 0 &&
                            FD_ISSET(globals->netsock, &errfds)) {
diff --git a/unix_sock.c b/unix_sock.c
index fb7e391..cc0d25c 100644
--- a/unix_sock.c
+++ b/unix_sock.c
@@ -43,8 +43,7 @@ int unix_sock_open_daemon(struct globals *globals)
 
        globals->unix_sock = socket(AF_LOCAL, SOCK_STREAM, 0);
        if (globals->unix_sock < 0) {
-               fprintf(stderr, "can't create unix socket: %s\n",
-                       strerror(errno));
+               perror("can't create unix socket");
                return -1;
        }
 
@@ -55,14 +54,12 @@ int unix_sock_open_daemon(struct globals *globals)
 
        if (bind(globals->unix_sock, (struct sockaddr *)&addr,
                 sizeof(addr)) < 0) {
-               fprintf(stderr, "can't bind unix socket: %s\n",
-                       strerror(errno));
+               perror("can't bind unix socket");
                return -1;
        }
 
        if (listen(globals->unix_sock, 10) < 0) {
-               fprintf(stderr, "can't listen on unix socket: %s\n",
-                       strerror(errno));
+               perror("can't listen on unix socket");
                return -1;
        }
 
@@ -75,8 +72,7 @@ int unix_sock_open_client(struct globals *globals)
 
        globals->unix_sock = socket(AF_LOCAL, SOCK_STREAM, 0);
        if (globals->unix_sock < 0) {
-               fprintf(stderr, "can't create unix socket: %s\n",
-                       strerror(errno));
+               perror("can't create unix socket");
                return -1;
        }
 
@@ -87,8 +83,7 @@ int unix_sock_open_client(struct globals *globals)
 
        if (connect(globals->unix_sock, (struct sockaddr *)&addr,
                    sizeof(addr)) < 0) {
-               fprintf(stderr, "can't connect to unix socket: %s\n",
-                       strerror(errno));
+               perror("can't connect to unix socket");
                return -1;
        }
 
@@ -315,16 +310,14 @@ int unix_sock_read(struct globals *globals)
        client_sock = accept(globals->unix_sock, (struct sockaddr *)&sun_addr,
                             &sun_size);
        if (client_sock < 0) {
-               fprintf(stderr, "can't accept unix connection: %s\n",
-                       strerror(errno));
+               perror("can't accept unix connection");
                return -1;
        }
 
        /* we assume that we can instantly read here. */
        length = read(client_sock, buf, sizeof(buf));
        if (length <= 0) {
-               fprintf(stderr, "read from unix socket failed: %s\n",
-                       strerror(errno));
+               perror("read from unix socket failed");
                goto err;
        }
 
diff --git a/vis/vis.c b/vis/vis.c
index 0cc4981..6cc4034 100644
--- a/vis/vis.c
+++ b/vis/vis.c
@@ -108,7 +108,7 @@ static int get_if_mac(char *ifname, uint8_t *mac)
        ifr.ifr_name[IFNAMSIZ - 1] = '\0';
 
        if ((sock = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
-               fprintf(stderr, "can't get interface: %s\n", strerror(errno));
+               perror("can't get interface");
                return -1;
        }
 
@@ -117,7 +117,7 @@ static int get_if_mac(char *ifname, uint8_t *mac)
        close(sock);
 
        if (ret == -1) {
-               fprintf(stderr, "can't get MAC address: %s\n", strerror(errno));
+               perror("can't get MAC address");
                return -1;
        }
 
@@ -162,8 +162,7 @@ static int alfred_open_sock(struct globals *globals)
 
        globals->unix_sock = socket(AF_LOCAL, SOCK_STREAM, 0);
        if (globals->unix_sock < 0) {
-               fprintf(stderr, "can't create unix socket: %s\n",
-                       strerror(errno));
+               perror("can't create unix socket");
                return -1;
        }
 
@@ -174,8 +173,7 @@ static int alfred_open_sock(struct globals *globals)
 
        if (connect(globals->unix_sock, (struct sockaddr *)&addr,
                    sizeof(addr)) < 0) {
-               fprintf(stderr, "can't connect to unix socket: %s\n",
-                       strerror(errno));
+               perror("can't connect to unix socket");
                return -1;
        }
 
-- 
2.0.1

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