summaryrefslogtreecommitdiff
path: root/lib/libc
diff options
context:
space:
mode:
Diffstat (limited to 'lib/libc')
-rw-r--r--lib/libc/include/ctype.h1
-rw-r--r--lib/libc/include/unistd.h8
-rw-r--r--lib/libc/src/hyra/socket.c13
-rw-r--r--lib/libc/src/hyra/sysctl.c38
-rw-r--r--lib/libc/src/main.c2
-rw-r--r--lib/libc/src/posix/getopt.c100
-rw-r--r--lib/libc/src/unistd/hostname.c125
7 files changed, 287 insertions, 0 deletions
diff --git a/lib/libc/include/ctype.h b/lib/libc/include/ctype.h
index 2348852..0ff9a43 100644
--- a/lib/libc/include/ctype.h
+++ b/lib/libc/include/ctype.h
@@ -72,6 +72,7 @@ __isspace(int c)
return 1;
return 0;
+ }
}
__END_DECLS
diff --git a/lib/libc/include/unistd.h b/lib/libc/include/unistd.h
index b9c9f5e..21206ad 100644
--- a/lib/libc/include/unistd.h
+++ b/lib/libc/include/unistd.h
@@ -47,6 +47,9 @@ __BEGIN_DECLS
int sysconf(int name);
int setuid(uid_t new);
+int gethostname(char *name, size_t size);
+int sethostname(const char *name, size_t size);
+
uid_t getuid(void);
char *getlogin(void);
@@ -60,6 +63,11 @@ off_t lseek(int fildes, off_t offset, int whence);
pid_t getpid(void);
pid_t getppid(void);
+extern char *optarg;
+extern int optind, opterr, optopt;
+
+int getopt(int argc, char *argv[], const char *optstring);
+
__END_DECLS
#endif /* !_UNISTD_H */
diff --git a/lib/libc/src/hyra/socket.c b/lib/libc/src/hyra/socket.c
index b3039f6..2a62541 100644
--- a/lib/libc/src/hyra/socket.c
+++ b/lib/libc/src/hyra/socket.c
@@ -71,3 +71,16 @@ connect(int socket, const struct sockaddr *address, socklen_t len)
{
return syscall(SYS_connect, socket, (uintptr_t)address, len);
}
+
+int
+setsockopt(int sockfd, int level, int name, const void *v, socklen_t len)
+{
+ return syscall(
+ SYS_setsockopt,
+ sockfd,
+ level,
+ name,
+ (uintptr_t)v,
+ len
+ );
+}
diff --git a/lib/libc/src/hyra/sysctl.c b/lib/libc/src/hyra/sysctl.c
new file mode 100644
index 0000000..2903e6f
--- /dev/null
+++ b/lib/libc/src/hyra/sysctl.c
@@ -0,0 +1,38 @@
+/*
+ * Copyright (c) 2023-2025 Ian Marco Moffett and the Osmora Team.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of Hyra nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <sys/types.h>
+#include <sys/syscall.h>
+#include <sys/sysctl.h>
+
+int
+sysctl(struct sysctl_args *args)
+{
+ return syscall(SYS_sysctl, (uintptr_t)args);
+}
diff --git a/lib/libc/src/main.c b/lib/libc/src/main.c
index 02a648b..68f9bdb 100644
--- a/lib/libc/src/main.c
+++ b/lib/libc/src/main.c
@@ -30,6 +30,7 @@
#include <sys/exec.h>
#include <stdint.h>
#include <stddef.h>
+#include <unistd.h>
extern int __libc_stdio_init(void);
extern int __malloc_mem_init(void);
@@ -51,6 +52,7 @@ __libc_entry(uint64_t *ctx)
char **argv;
char **envp;
+ optind = 1;
argc = *ctx;
argv = (char **)(ctx + 1);
envp = (char **)(argv + argc + 1);
diff --git a/lib/libc/src/posix/getopt.c b/lib/libc/src/posix/getopt.c
new file mode 100644
index 0000000..d3cd530
--- /dev/null
+++ b/lib/libc/src/posix/getopt.c
@@ -0,0 +1,100 @@
+/*
+ * Copyright (c) 2023-2025 Ian Marco Moffett and the Osmora Team.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of Hyra nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <sys/errno.h>
+#include <unistd.h>
+#include <stdbool.h>
+#include <string.h>
+#include <stdio.h>
+
+char *optarg;
+int optind, opterr, optopt;
+
+int
+getopt(int argc, char *argv[], const char *optstring)
+{
+ size_t optstr_len;
+ char *arg;
+ bool has_arg = false;
+
+ if (argc == 0 || optstring == NULL) {
+ opterr = -EINVAL;
+ return -1;
+ }
+
+ if (optind >= argc) {
+ return -1;
+ }
+
+ arg = argv[optind];
+ optstr_len = strlen(optstring);
+
+ /* Non option argument? */
+ if (arg[0] != '-') {
+ return -1;
+ }
+
+ /*
+ * We will look through each possible flag/option
+ * in the optstring and match it against our arg.
+ */
+ for (size_t i = 0; i < optstr_len; ++i) {
+ if (arg[1] != optstring[i]) {
+ continue;
+ }
+
+ /*
+ * If this option has a ':' right next to it,
+ * it also has an argument.
+ */
+ if (i < optstr_len - 1) {
+ if (optstring[i + 1] == ':') {
+ has_arg = true;
+ }
+ }
+
+ break;
+ }
+
+ /*
+ * Handle cases where the option has an argument
+ * with it (-opt=arg)
+ */
+ if (has_arg && optind < argc ) {
+ if (arg[2] != '=') {
+ opterr = -EINVAL;
+ return -1;
+ }
+ optarg = &arg[3];
+ ++optind;
+ }
+
+ ++optind;
+ return arg[1];
+}
diff --git a/lib/libc/src/unistd/hostname.c b/lib/libc/src/unistd/hostname.c
new file mode 100644
index 0000000..60df9a0
--- /dev/null
+++ b/lib/libc/src/unistd/hostname.c
@@ -0,0 +1,125 @@
+/*
+ * Copyright (c) 2023-2025 Ian Marco Moffett and the Osmora Team.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of Hyra nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <sys/sysctl.h>
+#include <unistd.h>
+
+/*
+ * Internal helper to grab a sysctl
+ * variable.
+ *
+ * @name: Name definition of sysctl variable
+ * @buf: Buffer to read data in
+ * @buflen: Length of buffer
+ *
+ * Returns zero on success, otherwise a less than
+ * zero value.
+ */
+static int
+__sysctl_get(int name, char *buf, size_t buflen)
+{
+ struct sysctl_args args;
+ int error;
+
+ args.name = &name;
+ args.nlen = 1;
+ args.oldp = buf;
+ args.oldlenp = &buflen;
+ args.newp = NULL;
+ args.newlen = 0;
+
+ if ((error = sysctl(&args)) != 0) {
+ return -1;
+ }
+
+ return 0;
+}
+
+/*
+ * Internal helper to set a sysctl
+ * variable.
+ *
+ * @name: Name definition of sysctl variable
+ * @buf: Buffer with data to set
+ * @buflen: Length of buffer
+ *
+ * Returns zero on success, otherwise a less than
+ * zero value.
+ */
+static int
+__sysctl_set(int name, const char *buf, size_t buflen)
+{
+ struct sysctl_args args;
+ int error;
+
+ args.name = &name;
+ args.nlen = 1;
+ args.oldp = NULL;
+ args.oldlenp = NULL;
+ args.newp = (void *)buf;
+ args.newlen = buflen;
+
+ if ((error = sysctl(&args)) != 0) {
+ return -1;
+ }
+
+ return 0;
+}
+
+/*
+ * Get the system hostname
+ *
+ * @name: Buffer to read name into
+ * @size: Length of name to read
+ */
+int
+gethostname(char *name, size_t size)
+{
+ if (name == NULL || size == 0) {
+ return -1;
+ }
+
+ return __sysctl_get(KERN_HOSTNAME, name, size);
+}
+
+/*
+ * Set the system hostname
+ *
+ * @name: Name to set
+ * @size: Size of name to set
+ */
+int
+sethostname(const char *name, size_t size)
+{
+ if (name == NULL || size == 0) {
+ return -1;
+ }
+
+ return __sysctl_set(KERN_HOSTNAME, name, size);
+}
generated by cgit v1.2.3 (git 2.39.1) at 2025-08-07 10:38:23 +0000