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authorGravatar Denis Vlasenko <vda.linux@googlemail.com>2007-05-26 16:44:20 +0000
committerGravatar Denis Vlasenko <vda.linux@googlemail.com>2007-05-26 16:44:20 +0000
commit5a6aeddfa7262e41802c77f70c9ef88e9c2c2476 (patch)
tree36bf70fe7e6c67e4ab37c446a191272eb90097ed /libbb
parent6239b1f50a04121d96daba2cdc2f7c3765c9007b (diff)
downloadbusybox-5a6aeddfa7262e41802c77f70c9ef88e9c2c2476.tar.gz
busybox-5a6aeddfa7262e41802c77f70c9ef88e9c2c2476.tar.bz2
xpipe: introduce (saves ~170 bytes)
udhcp/signalpipe.c: use pipe instead of socketpair.
Diffstat (limited to 'libbb')
-rw-r--r--libbb/xfuncs.c32
1 files changed, 18 insertions, 14 deletions
diff --git a/libbb/xfuncs.c b/libbb/xfuncs.c
index a85a046cf..4eb4737c0 100644
--- a/libbb/xfuncs.c
+++ b/libbb/xfuncs.c
@@ -106,7 +106,7 @@ FILE *xfopen(const char *path, const char *mode)
{
FILE *fp = fopen(path, mode);
if (fp == NULL)
- bb_perror_msg_and_die("cannot open '%s'", path);
+ bb_perror_msg_and_die("can't open '%s'", path);
return fp;
}
@@ -117,7 +117,7 @@ int xopen3(const char *pathname, int flags, int mode)
ret = open(pathname, flags, mode);
if (ret < 0) {
- bb_perror_msg_and_die("cannot open '%s'", pathname);
+ bb_perror_msg_and_die("can't open '%s'", pathname);
}
return ret;
}
@@ -135,7 +135,7 @@ int open3_or_warn(const char *pathname, int flags, int mode)
ret = open(pathname, flags, mode);
if (ret < 0) {
- bb_perror_msg("cannot open '%s'", pathname);
+ bb_perror_msg("can't open '%s'", pathname);
}
return ret;
}
@@ -146,21 +146,27 @@ int open_or_warn(const char *pathname, int flags)
return open3_or_warn(pathname, flags, 0666);
}
+void xpipe(int filedes[2])
+{
+ if (pipe(filedes))
+ bb_perror_msg_and_die("can't create pipe");
+}
+
void xunlink(const char *pathname)
{
if (unlink(pathname))
- bb_perror_msg_and_die("cannot remove file '%s'", pathname);
+ bb_perror_msg_and_die("can't remove file '%s'", pathname);
}
// Turn on nonblocking I/O on a fd
int ndelay_on(int fd)
{
- return fcntl(fd,F_SETFL,fcntl(fd,F_GETFL,0) | O_NONBLOCK);
+ return fcntl(fd, F_SETFL, fcntl(fd,F_GETFL,0) | O_NONBLOCK);
}
int ndelay_off(int fd)
{
- return fcntl(fd,F_SETFL,fcntl(fd,F_GETFL,0) & ~O_NONBLOCK);
+ return fcntl(fd, F_SETFL, fcntl(fd,F_GETFL,0) & ~O_NONBLOCK);
}
// "Renumber" opened fd
@@ -169,7 +175,7 @@ void xmove_fd(int from, int to)
if (from == to)
return;
if (dup2(from, to) != to)
- bb_perror_msg_and_die("cannot duplicate file descriptor");
+ bb_perror_msg_and_die("can't duplicate file descriptor");
close(from);
}
@@ -199,7 +205,7 @@ off_t xlseek(int fd, off_t offset, int whence)
void die_if_ferror(FILE *fp, const char *fn)
{
if (ferror(fp)) {
- /* doesn't set useful errno */
+ /* ferror doesn't set useful errno */
bb_error_msg_and_die("%s: I/O error", fn);
}
}
@@ -520,7 +526,7 @@ DIR *warn_opendir(const char *path)
dp = opendir(path);
if (!dp)
- bb_perror_msg("cannot open '%s'", path);
+ bb_perror_msg("can't open '%s'", path);
return dp;
}
@@ -531,7 +537,7 @@ DIR *xopendir(const char *path)
dp = opendir(path);
if (!dp)
- bb_perror_msg_and_die("cannot open '%s'", path);
+ bb_perror_msg_and_die("can't open '%s'", path);
return dp;
}
@@ -568,10 +574,8 @@ void xlisten(int s, int backlog)
if (listen(s, backlog)) bb_perror_msg_and_die("listen");
}
-/* Die with an error message if we the sendto failed.
- * Return bytes sent otherwise
- */
-
+/* Die with an error message if sendto failed.
+ * Return bytes sent otherwise */
ssize_t xsendto(int s, const void *buf, size_t len, const struct sockaddr *to,
socklen_t tolen)
{