X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=chmod_chown_chgrp.c;h=d5e67b599b6863995db7cf7e88c20c41f665e49a;hb=e49d5ecbbe51718fa925b6890a735e5937cc2aa2;hp=b4c5da9360f412da14241ef7112de8e10a527278;hpb=c0bf817bbc5c7867fbe8fb76d5c39f8ee802692f;p=oweals%2Fbusybox.git diff --git a/chmod_chown_chgrp.c b/chmod_chown_chgrp.c index b4c5da936..d5e67b599 100644 --- a/chmod_chown_chgrp.c +++ b/chmod_chown_chgrp.c @@ -1,3 +1,4 @@ +/* vi: set sw=4 ts=4: */ /* * Mini chown/chmod/chgrp implementation for busybox * @@ -34,8 +35,8 @@ static uid_t uid = -1; static gid_t gid = -1; static int whichApp; -static char* invocationName=NULL; -static char* theMode=NULL; +static char *invocationName = NULL; +static char *theMode = NULL; #define CHGRP_APP 1 @@ -43,130 +44,147 @@ static char* theMode=NULL; #define CHMOD_APP 3 static const char chgrp_usage[] = "chgrp [OPTION]... GROUP FILE...\n\n" - "Change the group membership of each FILE to GROUP.\n" - "\nOptions:\n\t-R\tchange files and directories recursively\n"; -static const char chown_usage[] = "chown [OPTION]... OWNER[.[GROUP] FILE...\n\n" - "Change the owner and/or group of each FILE to OWNER and/or GROUP.\n" - "\nOptions:\n\t-R\tchange files and directories recursively\n"; -static const char chmod_usage[] = "chmod [-R] MODE[,MODE]... FILE...\n\n" -"Each MODE is one or more of the letters ugoa, one of the symbols +-= and\n" -"one or more of the letters rwxst.\n\n" - "\nOptions:\n\t-R\tchange files and directories recursively.\n"; - - -static int fileAction(const char *fileName, struct stat* statbuf) + "Change the group membership of each FILE to GROUP.\n" + + "\nOptions:\n\t-R\tchange files and directories recursively\n"; +static const char chown_usage[] = + "chown [OPTION]... OWNER[.[GROUP] FILE...\n\n" + "Change the owner and/or group of each FILE to OWNER and/or GROUP.\n" + + "\nOptions:\n\t-R\tchange files and directories recursively\n"; +static const char chmod_usage[] = + "chmod [-R] MODE[,MODE]... FILE...\n\n" + "Each MODE is one or more of the letters ugoa, one of the symbols +-= and\n" + + "one or more of the letters rwxst.\n\n" + "\nOptions:\n\t-R\tchange files and directories recursively.\n"; + + +static int fileAction(const char *fileName, struct stat *statbuf) { - switch (whichApp) { + switch (whichApp) { case CHGRP_APP: case CHOWN_APP: #if (__GLIBC__ >= 2) && (__GLIBC_MINOR__ >= 1) - if (lchown(fileName, (whichApp==CHOWN_APP)? uid : statbuf->st_uid, - (gid==-1)? statbuf->st_gid : gid) == 0) + if (lchown + (fileName, (whichApp == CHOWN_APP) ? uid : statbuf->st_uid, + (gid == -1) ? statbuf->st_gid : gid) == 0) #else - if (chown(fileName, (whichApp==CHOWN_APP)? uid : statbuf->st_uid, - (gid==-1)? statbuf->st_gid : gid) == 0) + if (chown + (fileName, (whichApp == CHOWN_APP) ? uid : statbuf->st_uid, + (gid == -1) ? statbuf->st_gid : gid) == 0) #endif - { - return( TRUE); - } - break; + { + return (TRUE); + } + break; case CHMOD_APP: - /* Parse the specified modes */ - if ( parse_mode(theMode, &(statbuf->st_mode)) == FALSE ) { - fprintf(stderr, "%s: unknown mode: %s\n", invocationName, theMode); - exit( FALSE); - } - if (chmod(fileName, statbuf->st_mode) == 0) - return( TRUE); - break; - } - perror(fileName); - return( FALSE); + /* Parse the specified modes */ + if (parse_mode(theMode, &(statbuf->st_mode)) == FALSE) { + fprintf(stderr, "%s: unknown mode: %s\n", invocationName, + theMode); + exit(FALSE); + } + if (chmod(fileName, statbuf->st_mode) == 0) + return (TRUE); + break; + } + perror(fileName); + return (FALSE); } int chmod_chown_chgrp_main(int argc, char **argv) { - int recursiveFlag=FALSE; - char *groupName; - char *p; - const char *appUsage; - - whichApp = (strcmp(*argv, "chown")==0)? CHOWN_APP : (strcmp(*argv, "chmod")==0)? CHMOD_APP : CHGRP_APP; - - appUsage = (whichApp==CHOWN_APP)? chown_usage : (whichApp==CHMOD_APP)? chmod_usage : chgrp_usage; - - if (argc < 2) - usage( appUsage); - invocationName = *argv; - argc--; - argv++; - - /* Parse options */ - while (**argv == '-') { - while (*++(*argv)) switch (**argv) { - case 'R': - recursiveFlag = TRUE; - break; - default: - fprintf(stderr, invalid_option, invocationName, **argv); - usage( appUsage); - } + int recursiveFlag = FALSE; + char *groupName; + char *p; + const char *appUsage; + + whichApp = + (strcmp(*argv, "chown") == + 0) ? CHOWN_APP : (strcmp(*argv, + "chmod") == 0) ? CHMOD_APP : CHGRP_APP; + + appUsage = + (whichApp == CHOWN_APP) ? chown_usage : (whichApp == + CHMOD_APP) ? chmod_usage : + chgrp_usage; + + if (argc < 2) + usage(appUsage); + invocationName = *argv; argc--; argv++; - } - - if ( whichApp == CHMOD_APP ) { - theMode = *argv; - } else { - - /* Find the selected group */ - if ( whichApp==CHGRP_APP ) { - groupName = *argv; - gid = strtoul(groupName, &p, 10); /* maybe it's already numeric */ - if (groupName == p) - gid = my_getgrnam(groupName); - if (gid == -1) - goto bad_group; - } else { - groupName = strchr(*argv, '.'); - if (groupName) { - *groupName++ = '\0'; - gid = strtoul(groupName, &p, 10); - if (groupName == p) - gid = my_getgrnam(groupName); - if (gid == -1) - goto bad_group; - } else - gid = -1; + + /* Parse options */ + while (**argv == '-') { + while (*++(*argv)) + switch (**argv) { + case 'R': + recursiveFlag = TRUE; + break; + default: + fprintf(stderr, invalid_option, invocationName, **argv); + usage(appUsage); + } + argc--; + argv++; } + if (whichApp == CHMOD_APP) { + theMode = *argv; + } else { - /* Find the selected user (if appropriate) */ - if (whichApp==CHOWN_APP) { - uid = strtoul(*argv, &p, 10); /* if numeric ...*/ - if (*argv == p) - uid = my_getpwnam(*argv); - if (uid == -1) { - fprintf(stderr, "%s: unknown user name: %s\n", invocationName, *argv); - exit( FALSE); - } + /* Find the selected group */ + if (whichApp == CHGRP_APP) { + groupName = *argv; + gid = strtoul(groupName, &p, 10); /* maybe it's already numeric */ + if (groupName == p) + gid = my_getgrnam(groupName); + if (gid == -1) + goto bad_group; + } else { + groupName = strchr(*argv, '.'); + if (groupName) { + *groupName++ = '\0'; + gid = strtoul(groupName, &p, 10); + if (groupName == p) + gid = my_getgrnam(groupName); + if (gid == -1) + goto bad_group; + } else + gid = -1; + } + + + /* Find the selected user (if appropriate) */ + if (whichApp == CHOWN_APP) { + uid = strtoul(*argv, &p, 10); /* if numeric ... */ + if (*argv == p) + uid = my_getpwnam(*argv); + if (uid == -1) { + fprintf(stderr, "%s: unknown user name: %s\n", + invocationName, *argv); + exit(FALSE); + } + } } - } - - /* Ok, ready to do the deed now */ - if (argc <= 1) { - fprintf(stderr, "%s: too few arguments\n", invocationName); - exit( FALSE); - } - while (argc-- > 1) { - if (recursiveAction( *(++argv), recursiveFlag, TRUE, FALSE, fileAction, fileAction)==FALSE) - exit( FALSE); - } - exit(TRUE); - -bad_group: - fprintf(stderr, "%s: unknown group name: %s\n", invocationName, groupName); - exit( FALSE); -} + /* Ok, ready to do the deed now */ + if (argc <= 1) { + fprintf(stderr, "%s: too few arguments\n", invocationName); + exit(FALSE); + } + while (argc-- > 1) { + if (recursiveAction + (*(++argv), recursiveFlag, TRUE, FALSE, fileAction, + fileAction) == FALSE) + exit(FALSE); + } + exit(TRUE); + bad_group: + fprintf(stderr, "%s: unknown group name: %s\n", invocationName, + groupName); + exit(FALSE); +}