mirror of
https://github.com/ibm-s390-linux/s390-tools.git
synced 2026-08-05 02:14:52 +00:00
Philipp Rudo
f7430027b4
The use of sprintf can easily result in buffer overflows as it assumes that the buffer it writes to is large enough to contain the formatted string. Thus replace sprintf by snprintf and update its users. This removes the last user of vsprintf. Thus also remove vsprintf and its dependencies. Signed-off-by: Philipp Rudo <prudo@linux.ibm.com> Reviewed-by: Marc Hartmayer <mhartmay@linux.ibm.com> Reviewed-by: Stefan Haberland <sth@linux.ibm.com> Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
99 lines
2.7 KiB
C
99 lines
2.7 KiB
C
/*
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* zipl - zSeries Initial Program Loader tool
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*
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* Mini libc implementation
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*
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* Copyright IBM Corp. 2013, 2017
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*
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* s390-tools is free software; you can redistribute it and/or modify
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* it under the terms of the MIT license. See LICENSE for details.
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*/
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#ifndef LIBC_H
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#define LIBC_H
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#include <stdint.h>
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#define NULL ((void *) 0)
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#define EPERM 1 /* Operation not permitted */
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#define ENOENT 2 /* No such file or directory */
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#define ESRCH 3 /* No such process */
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#define EINTR 4 /* Interrupted system call */
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#define EIO 5 /* I/O error */
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#define ENXIO 6 /* No such device or address */
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#define E2BIG 7 /* Argument list too long */
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#define ENOEXEC 8 /* Exec format error */
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#define EBADF 9 /* Bad file number */
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#define ECHILD 10 /* No child processes */
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#define EAGAIN 11 /* Try again */
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#define ENOMEM 12 /* Out of memory */
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#define EACCES 13 /* Permission denied */
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#define EFAULT 14 /* Bad address */
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#define ENOTBLK 15 /* Block device required */
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#define EBUSY 16 /* Device or resource busy */
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#define EEXIST 17 /* File exists */
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#define EXDEV 18 /* Cross-device link */
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#define ENODEV 19 /* No such device */
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#define ENOTDIR 20 /* Not a directory */
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#define EISDIR 21 /* Is a directory */
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#define EINVAL 22 /* Invalid argument */
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#define ENFILE 23 /* File table overflow */
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#define EMFILE 24 /* Too many open files */
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#define ENOTTY 25 /* Not a typewriter */
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#define MIB (1024ULL * 1024)
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void printf(const char *, ...);
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void snprintf(char *buf, unsigned long size, const char *fmt, ...);
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void *memcpy(void *, const void *, unsigned long);
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void *memmove(void *, const void *, unsigned long);
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void *memset(void *, int c, unsigned long);
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char *strcat(char *, const char *);
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int strncmp(const char *, const char *, unsigned long);
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unsigned long ebcstrtoul(char *, char **, int);
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int strlen(const char *);
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char *strcpy(char *, const char *);
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unsigned long get_zeroed_page(void);
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void free_page(unsigned long);
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void initialize(void);
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void libc_stop(unsigned long);
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void start(void);
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void pgm_check_handler(void);
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void pgm_check_handler_fn(void);
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static inline int isdigit(int c)
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{
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return (c >= '0') && (c <= '9');
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}
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static inline int isspace(char c)
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{
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return (c == 32) || (c >= 9 && c <= 13);
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}
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static inline int ebc_isspace(char c)
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{
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return (c == 0x40) || (c == 0x05) || (c == 0x15) || (c == 0x25) ||
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(c == 0x0b) || (c == 0x0c) || (c == 0x0d);
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}
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static inline int ebc_isdigit(char c)
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{
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return (c >= 0xf0) && (c <= 0xf9);
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}
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static inline int ebc_isupper(char c)
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{
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return (c >= 0xC1 && c <= 0xC9) || (c >= 0xD1 && c <= 0xD9) ||
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(c >= 0xE2 && c <= 0xE9);
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}
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static inline char ebc_tolower(char c)
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{
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if (ebc_isupper(c))
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c -= 0x40;
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return c;
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}
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#endif /* LIBC_H */
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