From b6e3f6cb5d1051777c35988f201e6730525e3389 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E8=AB=8F=E8=A8=AA=E5=AD=90?= <suwako@076.moe>
Date: Wed, 19 Jun 2024 23:52:56 +0900
Subject: =?UTF-8?q?=E6=8E=83=E9=99=A4?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/common.c | 60 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 60 insertions(+)
 create mode 100644 src/common.c

(limited to 'src/common.c')

diff --git a/src/common.c b/src/common.c
new file mode 100644
index 0000000..acb0a45
--- /dev/null
+++ b/src/common.c
@@ -0,0 +1,60 @@
+#include "common.h"
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+
+long long int run_command_lld(const char *command) {
+  char buf[128];
+  long long int res = 0;
+
+  FILE *p = popen(command, "r");
+  if (!p) {
+    fprintf(stderr, "コマンドを実効に失敗: %s", command);
+    return 0;
+  }
+
+  while (fgets(buf, sizeof(buf), p) != NULL) {
+    buf[strcspn(buf, "\n")] = '\0';
+  }
+
+  res = atoll(buf);
+  pclose(p);
+
+  return res;
+}
+
+const char *run_command_s(const char *command) {
+  char buf[128];
+  char *out = NULL;
+  size_t outsize = 0;
+
+  FILE *p = popen(command, "r");
+  if (!p) {
+    fprintf(stderr, "コマンドを実効に失敗: %s", command);
+    return NULL;
+  }
+
+  while (fgets(buf, sizeof(buf), p) != NULL) {
+    buf[strcspn(buf, "\n")] = '\0';
+
+    size_t len = strlen(buf);
+    char *nout = realloc(out, outsize + len + 1);
+    if (nout == NULL) {
+      perror("メモリの役割に失敗");
+      free(out);
+      pclose(p);
+      return NULL;
+    }
+
+    out = nout;
+
+    memccpy(out + outsize, buf, sizeof(buf), len);
+    outsize += len;
+    out[outsize] = '\0';
+  }
+
+  pclose(p);
+
+  return out;
+}
-- 
cgit v1.2.3