更换库

cmdline/cmdline.c

@@ -0,0 +1,47 @@
+#include <stdio.h>
+#include <string.h>
+
+#define BUFFER 270
+
+char *cmdline(char *pid)
+{
+    FILE *fp;
+    char path[BUFFER];
+    char temp[BUFFER * 100];
+    char *p;
+    unsigned char ch;
+    int i = 0;
+
+    memset(path, 0, BUFFER);
+    memset(temp, 0, BUFFER * 100);
+    snprintf(path, BUFFER, "/proc/%s/cmdline", pid);
+
+    if ((fp = fopen(path, "r")) == NULL) {
+        perror("fopen");
+        return 0;
+    }
+
+    while (!feof(fp)) {
+        ch = fgetc(fp);
+        if (ch == 0) {
+            temp[i] = ' ';
+        } else {
+            temp[i] = ch;
+        }
+        i++;
+    }
+
+    p = strrchr(temp, ' ');
+    temp[strlen(temp) - strlen(p)] = '\0';
+    printf("%s\n", temp);
+
+    fclose(fp);
+    return 0;
+}
+
+int main(int argc, char *argv[], char **envlp)
+{
+    cmdline(argv[1]);
+
+    return 0;
+}