27 lines
585 B
C
27 lines
585 B
C
#define _GNU_SOURCE
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#include <dlfcn.h>
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#include <pwd.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/types.h>
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typedef struct passwd *(*getpwnam_type)(const char *name);
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struct passwd *getpwnam(const char *name) {
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struct passwd *pw;
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getpwnam_type orig_getpwnam;
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orig_getpwnam = (getpwnam_type)dlsym(RTLD_NEXT, "getpwnam");
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pw = orig_getpwnam(name);
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if (pw) {
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const char *shell = getenv("LOGIN_SHELL");
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if (!shell) {
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fprintf(stderr, "no LOGIN_SHELL set\n");
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exit(1);
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}
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pw->pw_shell = strdup(shell);
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}
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return pw;
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}
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