add C version of redhat-support-check here

2 files changed, 171 insertions, 1 deletions

diff --git a/src/Makefile b/src/Makefile
index 71491075..4281da0e 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -1,7 +1,7 @@
 CFLAGS+=$(RPM_OPT_FLAGS) -Wall -D_GNU_SOURCE
 
 PROGS=usernetctl doexec netreport testd usleep ipcalc initlog minilogd \
-	getkey ppp-watch consoletype
+	getkey ppp-watch consoletype redhat-support-check
 PPPWATCH_OBJS=ppp-watch.o shvar.o
 INITLOG_OBJS=initlog.o process.o
 USLEEP_OBJS=usleep.o
@@ -35,6 +35,7 @@ install:
 	install -m 644 consoletype.1 $(ROOT)$(mandir)/man1
 	install -m 644 initlog.conf $(ROOT)/etc
 	install -m 755 mkkerneldoth $(ROOT)/sbin
+	install -m 755 redhat-support-check $(ROOT)/sbin
 	if uname -m | grep -q s390 ; then \
 	  install -m 755 mkkerneldoth.s390 $(ROOT)/sbin/mkkerneldoth ; \
 	fi
@@ -60,9 +61,15 @@ usleep: $(USLEEP_OBJS)
 ppp-watch: $(PPPWATCH_OBJS)
 	$(CC) $(LDFLAGS) -o $@ $(PPPWATCH_OBJS) -Wl,-Bstatic `pkg-config glib-2.0 --libs` -Wl,-Bdynamic
 
+redhat-support-check: redhat-support-check.o
+	$(CC) $(LDFLAGS) -o $@ redhat-support-check.o -Wl,-Bstatic -lpopt `pkg-config glib-2.0 --libs` -Wl,-Bdynamic
+
 shvar.o: shvar.c
 	$(CC) $(CFLAGS) `pkg-config glib-2.0 --cflags` -c shvar.c -o shvar.o
 
 ppp-watch.o: ppp-watch.c
 	$(CC) $(CFLAGS) `pkg-config glib-2.0 --cflags` -c ppp-watch.c -o ppp-watch.o
 
+redhat-support-check.o: redhat-support-check.c
+	$(CC) $(CFLAGS) `pkg-config glib-2.0 --cflags` -c redhat-support-check.c -o redhat-support-check.o
+
diff --git a/src/redhat-support-check.c b/src/redhat-support-check.c
new file mode 100644
index 00000000..2a633418
--- /dev/null
+++ b/src/redhat-support-check.c
@@ -0,0 +1,163 @@
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <syslog.h>
+#include <unistd.h>
+
+#include <libintl.h>
+#include <locale.h>
+
+#include <sys/types.h>
+
+#include <glib.h>
+#include <popt.h>
+
+#define _(String) gettext((String))
+
+#define SUPPORTINFO "/var/lib/supportinfo"
+
+static int min_mem = 0;
+static int max_mem = 0;
+static int max_cpus = 0;
+static char *variant = NULL;
+
+static char *release_name = NULL;
+
+static int test = 0;
+
+#ifdef __i386__
+static inline void cpuid(int op, int *eax, int *ebx, int *ecx, int *edx)
+{
+	__asm__("pushl %%ebx; cpuid; movl %%ebx,%1; popl %%ebx"
+		: "=a"(*eax), "=r"(*ebx), "=c"(*ecx), "=d"(*edx)
+		: "0" (op));
+}
+#endif
+
+guint64 get_memory() {
+	guint64 npages = sysconf(_SC_PHYS_PAGES);
+	guint64 pgsize = sysconf(_SC_PAGESIZE);
+	
+	return (guint64)(npages * pgsize / 1048576);
+}
+
+unsigned int get_num_cpus() {
+	int ncpus = sysconf(_SC_NPROCESSORS_ONLN);
+	u_int32_t eax = 0, ebx = 0, ecx = 0, edx = 0;
+	
+#ifdef __i386__
+	cpuid(0, &eax, &ebx, &ecx, &edx);
+	if (ebx == 0x756e6547) { /* Intel */
+		cpuid(1, &eax, &ebx, &ecx, &edx);
+		if (edx & (1 << 28)) {  /* has HT */
+			int nsibs = (ebx & 0xff0000) >> 16;
+			return ncpus / nsibs;
+		}
+	}
+#endif
+	return ncpus;
+}
+
+int parse_supportinfo() {
+	gchar *contents, **lines;
+	gsize len;
+	int x;
+	
+	g_file_get_contents(SUPPORTINFO, &contents, &len, NULL);
+	if (!contents)
+		return -1;
+	lines = g_strsplit(contents,"\n", 0);
+	for (x = 0; lines[x]; x++) {
+		if (!strncmp(lines[x],"Variant:",8))
+			variant = strdup(lines[x]+9);
+		if (!strncmp(lines[x],"MinRAM:",7))
+			min_mem = atoi(lines[x]+8);
+		if (!strncmp(lines[x],"MaxRAM:",7))
+			max_mem = atoi(lines[x]+8);
+		if (!strncmp(lines[x],"MaxCPU:",7))
+			max_cpus = atoi(lines[x]+8);
+	}
+	g_free(contents);
+	g_strfreev(lines);
+	return 0;
+}
+
+void get_release_info() {
+	gchar *contents;
+	gsize len;
+	
+	g_file_get_contents("/etc/redhat-release", &contents, &len, NULL);
+	if (!contents)
+		release_name = "Red Hat Linux release 11.7 (Foo)";
+	else
+		release_name = g_strstrip(contents);
+}
+		
+int main(int argc, char **argv) {
+	const struct poptOption options[] = {
+		POPT_AUTOHELP
+		{ "test", 't', POPT_ARG_NONE, &test, 0,
+		   _("Test mode (assumes 256MB, 1GB, 2 CPUs)"), NULL
+		},
+		{ 0, 0, 0, 0, 0, 0 }
+	};
+	poptContext context;
+	guint64 memory;
+	int cpus;
+	int rc = 0;
+	
+	setlocale(LC_ALL, "");
+	bindtextdomain("redhat-support-check", "/usr/share/locale");
+	textdomain("redhat-support-check");
+	
+	context = poptGetContext("redhat-support-check", argc, 
+				 (const char **)argv, options, 0);
+	while ((rc = poptGetNextOpt (context)) > 0);
+	if (rc < -1) {
+		fprintf(stderr, "%s: %s\n",
+			poptBadOption(context, POPT_BADOPTION_NOALIAS),
+			poptStrerror(rc));
+		return 1;
+	}
+	if (test) {
+		max_mem = 1024;
+		min_mem = 256;
+		max_cpus = 2;
+		variant = "XS";
+	} else {
+		if (parse_supportinfo()) {
+			fprintf(stderr,
+			        _("Failed to parse supportinfo file.\n"));
+			return 1;
+		}
+	}
+	
+	memory = get_memory();
+	cpus = get_num_cpus();
+	get_release_info();
+	
+	openlog("redhat-support-check", 0, LOG_USER);
+	if (min_mem && memory < min_mem) {
+		printf(_("WARNING: %s requires at least %dMB RAM to run as a supported configuration. (%lluMB detected)\n"),
+		       release_name, min_mem, memory);
+		syslog(LOG_NOTICE,_("WARNING: %s requires at least %dMB RAM to run as a supported configuration. (%lluMB detected)\n"),
+		       release_name, min_mem, memory);
+		rc++;
+	}
+	if (max_mem && memory > max_mem) {
+		printf(_("WARNING: %s requires no more than %dMB RAM to run as a supported configuration. (%lluMB detected)\n"),
+		       release_name, max_mem, memory);
+		syslog(LOG_NOTICE,_("WARNING: %s requires no more than %dMB RAM to run as a supported configuration. (%lluMB detected)\n"),
+		       release_name, max_mem, memory);
+		rc++;
+	}
+	if (max_cpus && cpus > max_cpus) {
+		printf(_("WARNING: %s requires no more than %d CPUs to run as a supported configuration. (%d detected)\n"),
+		       release_name, max_cpus, cpus);
+		syslog(LOG_NOTICE,_("WARNING: %s requires no more than %d CPUs to run as a supported configuration. (%d detected)\n"),
+		       release_name, max_cpus, cpus);
+		rc++;
+	}
+	return rc;
+}