随笔分类 - Linux/Unix系统编程
学习APUE、Linux/Unix系统编程手册时候的点滴记录
摘要：#include <unistd.h> #include <stdio.h> int main() { enum {PATHMAX = 256}; char buf[PATHMAX]; int val; char *cwd; cwd = getcwd(buf, PATHMAX); /*remembe
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摘要：#include <errno.h> #include <string.h> #include <stdio.h> #include <fcntl.h> int main() { int fd, ret; enum { LENGTH = 100 }; char buf[LENGTH]; fd = o
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摘要：int find_file_in_dir(const char *path, const char *file) { struct dirent *entry; int ret=1; DIR *dir; dir = opendir(path); errno = 0; while((entry = r
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摘要：#include <sys/stat.h> int stat(const char *restrict pathname, struct stat *restrict buf); struct stat { mode_t st_mode; /*file type & mode(permissions
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摘要：#include <stdio.h>#include <stdlib.h>#include <arpa/inet.h>#include <sys/types.h>#include <sys/socket.h>#include <sys/time.h>#include <netinet/in.h>#i
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摘要：#include <stdio.h>#include <stdlib.h>#include <arpa/inet.h>#include <sys/types.h>#include <sys/socket.h>#include <sys/time.h>#include <netinet/in.h>#i
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摘要：我们在一个短整数变量中存放2字节的值0x0102，然后查看它的 两个连续字节c[0]和c[1]，以此确定字节序。 #include <unistd.h>#include <stdio.h> int main() { union { short s; char c[sizeof(short)]; }
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摘要：#include <unistd.h> #include <fcntl.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <errno.h> #include <sys/wait.h> #include <s
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