p5-14.c

SUN Solaris8平台下进程间通信

#include <pwd.h>
#include <stddef.h>
#include <string.h>
struct passwd *
getpwnam(const char *name)
{
    struct passwd *ptr;
    setpwent();
    while ((ptr = getpwent()) != NULL) {
        if (strcmp(name, ptr->pw_name) == 0)
            break;                                /* 找到匹配项 */
    }
    endpwent();
    return(ptr);                          /* 若找不到匹配，返回NULL */
}