From 7be6decd1e033045387582e5b29234465c64bba8 Mon Sep 17 00:00:00 2001 From: nbd Date: Sat, 22 Oct 2005 20:52:12 +0000 Subject: rename target/linux/package/openwrt to base-files git-svn-id: svn://svn.openwrt.org/openwrt/trunk/openwrt@2261 3c298f89-4303-0410-b956-a3cf2f4a3e73 --- target/linux/package/base-files/include/shutils.h | 200 ++++++++++++++++++++++ 1 file changed, 200 insertions(+) create mode 100644 target/linux/package/base-files/include/shutils.h (limited to 'target/linux/package/base-files/include/shutils.h') diff --git a/target/linux/package/base-files/include/shutils.h b/target/linux/package/base-files/include/shutils.h new file mode 100644 index 000000000..783ee9ede --- /dev/null +++ b/target/linux/package/base-files/include/shutils.h @@ -0,0 +1,200 @@ +/* + * Shell-like utility functions + * + * Copyright 2004, Broadcom Corporation + * All Rights Reserved. + * + * THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY + * KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM + * SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS + * FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE. + * + * $Id$ + */ + +#ifndef _shutils_h_ +#define _shutils_h_ +#include +/* + * Reads file and returns contents + * @param fd file descriptor + * @return contents of file or NULL if an error occurred + */ +extern char * fd2str(int fd); + +/* + * Reads file and returns contents + * @param path path to file + * @return contents of file or NULL if an error occurred + */ +extern char * file2str(const char *path); + +/* + * Waits for a file descriptor to become available for reading or unblocked signal + * @param fd file descriptor + * @param timeout seconds to wait before timing out or 0 for no timeout + * @return 1 if descriptor changed status or 0 if timed out or -1 on error + */ +extern int waitfor(int fd, int timeout); + +/* + * Concatenates NULL-terminated list of arguments into a single + * commmand and executes it + * @param argv argument list + * @param path NULL, ">output", or ">>output" + * @param timeout seconds to wait before timing out or 0 for no timeout + * @param ppid NULL to wait for child termination or pointer to pid + * @return return value of executed command or errno + */ +extern int _eval(char *const argv[], char *path, int timeout, pid_t *ppid); + +/* + * Concatenates NULL-terminated list of arguments into a single + * commmand and executes it + * @param argv argument list + * @return stdout of executed command or NULL if an error occurred + */ +extern char * _backtick(char *const argv[]); + +/* + * Kills process whose PID is stored in plaintext in pidfile + * @param pidfile PID file + * @return 0 on success and errno on failure + */ +extern int kill_pidfile(char *pidfile); + +/* + * fread() with automatic retry on syscall interrupt + * @param ptr location to store to + * @param size size of each element of data + * @param nmemb number of elements + * @param stream file stream + * @return number of items successfully read + */ +extern int safe_fread(void *ptr, size_t size, size_t nmemb, FILE *stream); + +/* + * fwrite() with automatic retry on syscall interrupt + * @param ptr location to read from + * @param size size of each element of data + * @param nmemb number of elements + * @param stream file stream + * @return number of items successfully written + */ +extern int safe_fwrite(const void *ptr, size_t size, size_t nmemb, FILE *stream); + +/* + * Convert Ethernet address string representation to binary data + * @param a string in xx:xx:xx:xx:xx:xx notation + * @param e binary data + * @return TRUE if conversion was successful and FALSE otherwise + */ +extern int ether_atoe(const char *a, unsigned char *e); + +/* + * Convert Ethernet address binary data to string representation + * @param e binary data + * @param a string in xx:xx:xx:xx:xx:xx notation + * @return a + */ +extern char * ether_etoa(const unsigned char *e, char *a); + +/* + * Concatenate two strings together into a caller supplied buffer + * @param s1 first string + * @param s2 second string + * @param buf buffer large enough to hold both strings + * @return buf + */ +static inline char * strcat_r(const char *s1, const char *s2, char *buf) +{ + strcpy(buf, s1); + strcat(buf, s2); + return buf; +} + +/* Check for a blank character; that is, a space or a tab */ +#define isblank(c) ((c) == ' ' || (c) == '\t') + +/* Strip trailing CR/NL from string */ +#define chomp(s) ({ \ + char *c = (s) + strlen((s)) - 1; \ + while ((c > (s)) && (*c == '\n' || *c == '\r' || *c == ' ')) \ + *c-- = '\0'; \ + s; \ +}) + +/* Simple version of _backtick() */ +#define backtick(cmd, args...) ({ \ + char *argv[] = { cmd, ## args, NULL }; \ + _backtick(argv); \ +}) + +/* Simple version of _eval() (no timeout and wait for child termination) */ +#define eval(cmd, args...) ({ \ + char *argv[] = { cmd, ## args, NULL }; \ + _eval(argv, ">/dev/console", 0, NULL); \ +}) + +/* Copy each token in wordlist delimited by space into word */ +#define foreach(word, wordlist, next) \ + for (next = &wordlist[strspn(wordlist, " ")], \ + strncpy(word, next, sizeof(word)), \ + word[strcspn(word, " ")] = '\0', \ + word[sizeof(word) - 1] = '\0', \ + next = strchr(next, ' '); \ + strlen(word); \ + next = next ? &next[strspn(next, " ")] : "", \ + strncpy(word, next, sizeof(word)), \ + word[strcspn(word, " ")] = '\0', \ + word[sizeof(word) - 1] = '\0', \ + next = strchr(next, ' ')) + +/* Return NUL instead of NULL if undefined */ +#define safe_getenv(s) (getenv(s) ? : "") + +/* Print directly to the console */ +#define cprintf(fmt, args...) do { \ + FILE *fp = fopen("/dev/console", "w"); \ + if (fp) { \ + fprintf(fp, fmt, ## args); \ + fclose(fp); \ + } \ +} while (0) + +/* Debug print */ +#ifdef DEBUG +#define dprintf(fmt, args...) cprintf("%s: " fmt, __FUNCTION__, ## args) +#else +#define dprintf(fmt, args...) +#endif + +#ifdef vxworks + +#include +#define inet_aton(a, n) ((inet_aton((a), (n)) == ERROR) ? 0 : 1) +#define inet_ntoa(n) ({ char a[INET_ADDR_LEN]; inet_ntoa_b ((n), a); a; }) + +#include +#include +#define ether_atoe(a, e) bcm_ether_atoe((a), (e)) +#define ether_etoa(e, a) bcm_ether_ntoa((e), (a)) + +/* These declarations are not available where you would expect them */ +extern int vsnprintf (char *, size_t, const char *, va_list); +extern int snprintf(char *str, size_t count, const char *fmt, ...); +extern char *strdup(const char *); +extern char *strsep(char **stringp, char *delim); +extern int strcasecmp(const char *s1, const char *s2); +extern int strncasecmp(const char *s1, const char *s2, size_t n); + +/* Neither are socket() and connect() */ +#include + +#ifdef DEBUG +#undef dprintf +#define dprintf printf +#endif +#endif + +#endif /* _shutils_h_ */ -- cgit v1.2.3