libexplain  1.4.D001
Functions
libexplain/buffer/errno/setresuid.h File Reference
#include <libexplain/ac/unistd.h>
#include <libexplain/string_buffer.h>

Go to the source code of this file.

Functions

void explain_buffer_errno_setresuid (explain_string_buffer_t *sb, int errnum, uid_t ruid, uid_t euid, uid_t suid)
void explain_buffer_errno_setresuid_explanation (explain_string_buffer_t *sb, int errnum, const char *syscall_name, uid_t ruid, uid_t euid, uid_t suid)

Function Documentation

void explain_buffer_errno_setresuid ( explain_string_buffer_t sb,
int  errnum,
uid_t  ruid,
uid_t  euid,
uid_t  suid 
)

The explain_buffer_errno_setresuid function is used to obtain an explanation of an error returned by the setresuid(2) system call. The least the message will contain is the value of strerror(errnum), but usually it will do much better, and indicate the underlying cause in more detail.

Parameters:
sbThe string buffer to print the message into. If a suitable buffer is specified, this function is thread safe.
errnumThe error value to be decoded, usually obtained from the errno global variable just before this function is called. This is necessary if you need to call any code between the system call to be explained and this function, because many libc functions will alter the value of errno.
ruidThe original ruid, exactly as passed to the setresuid(2) system call.
euidThe original euid, exactly as passed to the setresuid(2) system call.
suidThe original suid, exactly as passed to the setresuid(2) system call.

Definition at line 148 of file setresuid.c.

void explain_buffer_errno_setresuid_explanation ( explain_string_buffer_t sb,
int  errnum,
const char *  syscall_name,
uid_t  ruid,
uid_t  euid,
uid_t  suid 
)

The explain_buffer_errno_setresuid_explanation function is used to obtain the explanation (the part after "because") of an error returned by the setresuid(2) system call (and similar).

Parameters:
sbThe string buffer to print the message into. If a suitable buffer is specified, this function is thread safe.
errnumThe error value to be decoded, usually obtained from the errno global variable just before this function is called. This is necessary if you need to call any code between the system call to be explained and this function, because many libc functions will alter the value of errno.
syscall_nameThe name of the offending system call.
ruidThe original ruid, exactly as passed to the setresuid(2) system call.
euidThe original euid, exactly as passed to the setresuid(2) system call.
suidThe original suid, exactly as passed to the setresuid(2) system call.

Definition at line 75 of file setresuid.c.