diff options
Diffstat (limited to 'packages/google-compute-engine-oslogin/src/nss/compat/getpwent_r.c')
-rw-r--r-- | packages/google-compute-engine-oslogin/src/nss/compat/getpwent_r.c | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/packages/google-compute-engine-oslogin/src/nss/compat/getpwent_r.c b/packages/google-compute-engine-oslogin/src/nss/compat/getpwent_r.c new file mode 100644 index 0000000..b1be6fc --- /dev/null +++ b/packages/google-compute-engine-oslogin/src/nss/compat/getpwent_r.c @@ -0,0 +1,87 @@ +/* + * ---------------------------------------------------------------------- + * Copyright © 2005-2014 Rich Felker, et al. + * + * Permission is hereby granted, free of charge, to any person obtaining + * a copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sublicense, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. + * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY + * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * ---------------------------------------------------------------------- + * + * Adapted from http://www.musl-libc.org/ for libnss-cache + * Copyright © 2015 Kevin Bowling <k@kev009.com> + */ + +#include <sys/param.h> + +#ifdef BSD + +#include <pwd.h> +#include <stdio.h> +#include <stdlib.h> +#include <errno.h> +#include <string.h> + +static unsigned atou(char **s) +{ + unsigned x; + for (x=0; **s-'0'<10U; ++*s) x=10*x+(**s-'0'); + return x; +} + +int fgetpwent_r(FILE *f, struct passwd *pw, char *line, size_t size, struct passwd **res) +{ + char *s; + int rv = 0; + for (;;) { + line[size-1] = '\xff'; + if ( (fgets(line, size, f) == NULL) || ferror(f) || line[size-1] != '\xff' ) { + rv = (line[size-1] != '\xff') ? ERANGE : ENOENT; + line = 0; + pw = 0; + break; + } + line[strcspn(line, "\n")] = 0; + + s = line; + pw->pw_name = s++; + if (!(s = strchr(s, ':'))) continue; + + *s++ = 0; pw->pw_passwd = s; + if (!(s = strchr(s, ':'))) continue; + + *s++ = 0; pw->pw_uid = atou(&s); + if (*s != ':') continue; + + *s++ = 0; pw->pw_gid = atou(&s); + if (*s != ':') continue; + + *s++ = 0; pw->pw_gecos = s; + if (!(s = strchr(s, ':'))) continue; + + *s++ = 0; pw->pw_dir = s; + if (!(s = strchr(s, ':'))) continue; + + *s++ = 0; pw->pw_shell = s; + break; + } + *res = pw; + if (rv) errno = rv; + return rv; +} + +#endif // ifdef BSD |