diff options
Diffstat (limited to 'lib/curl_addrinfo.c')
| -rw-r--r-- | lib/curl_addrinfo.c | 27 |
1 files changed, 19 insertions, 8 deletions
diff --git a/lib/curl_addrinfo.c b/lib/curl_addrinfo.c index 61cdaddc1..7182a0066 100644 --- a/lib/curl_addrinfo.c +++ b/lib/curl_addrinfo.c @@ -47,6 +47,8 @@ # define in_addr_t unsigned long #endif +#include <stddef.h> + #include "curl_addrinfo.h" #include "inet_pton.h" #include "warnless.h" @@ -483,24 +485,29 @@ Curl_addrinfo *Curl_str2addr(char *address, int port) * struct initialized with this path. * Set '*longpath' to TRUE if the error is a too long path. */ -Curl_addrinfo *Curl_unix2addr(const char *path, int *longpath) +Curl_addrinfo *Curl_unix2addr(const char *path, bool *longpath, bool abstract) { Curl_addrinfo *ai; struct sockaddr_un *sa_un; size_t path_len; + *longpath = FALSE; + ai = calloc(1, sizeof(Curl_addrinfo)); if(!ai) return NULL; ai->ai_addr = calloc(1, sizeof(struct sockaddr_un)); if(!ai->ai_addr) { free(ai); - *longpath = FALSE; return NULL; } + + sa_un = (void *) ai->ai_addr; + sa_un->sun_family = AF_UNIX; + /* sun_path must be able to store the NUL-terminated path */ - path_len = strlen(path); - if(path_len >= sizeof(sa_un->sun_path)) { + path_len = strlen(path) + 1; + if(path_len > sizeof(sa_un->sun_path)) { free(ai->ai_addr); free(ai); *longpath = TRUE; @@ -509,10 +516,14 @@ Curl_addrinfo *Curl_unix2addr(const char *path, int *longpath) ai->ai_family = AF_UNIX; ai->ai_socktype = SOCK_STREAM; /* assume reliable transport for HTTP */ - ai->ai_addrlen = (curl_socklen_t) sizeof(struct sockaddr_un); - sa_un = (void *) ai->ai_addr; - sa_un->sun_family = AF_UNIX; - memcpy(sa_un->sun_path, path, path_len + 1); /* copy NUL byte */ + ai->ai_addrlen = offsetof(struct sockaddr_un, sun_path) + path_len; + + /* Abstract Unix domain socket have NULL prefix instead of suffix */ + if(abstract) + memcpy(sa_un->sun_path + 1, path, path_len - 1); + else + memcpy(sa_un->sun_path, path, path_len); /* copy NUL byte */ + return ai; } #endif |