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Diffstat (limited to 'libreport/src/lib/get_cmdline.c')
| -rw-r--r-- | libreport/src/lib/get_cmdline.c | 150 |
1 files changed, 0 insertions, 150 deletions
diff --git a/libreport/src/lib/get_cmdline.c b/libreport/src/lib/get_cmdline.c deleted file mode 100644 index 04254660..00000000 --- a/libreport/src/lib/get_cmdline.c +++ /dev/null @@ -1,150 +0,0 @@ -/* - Copyright (C) 2009 RedHat inc. - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License along - with this program; if not, write to the Free Software Foundation, Inc., - 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. -*/ -#include "libreport.h" - -/* If s is a string with only printable ASCII chars - * and has no spaces, ", ', and \, copy it verbatim. - * Else, encapsulate it in single quotes, and - * encode ', " and \ with \c escapes. - * Control chars are encoded as \r, \n, \t, or \xNN. - * In all cases, terminating NUL is added - * and the pointer to it is returned. - */ -static char *append_escaped(char *start, const char *s) -{ - char *dst = start; - const unsigned char *p = (unsigned char *)s; - - while (1) - { - const unsigned char *old_p = p; - while (*p > ' ' && *p <= 0x7e && *p != '\"' && *p != '\'' && *p != '\\') - p++; - if (dst == start) - { - if (p != (unsigned char *)s && *p == '\0') - { - /* entire word does not need escaping and quoting */ - strcpy(dst, s); - dst += strlen(s); - return dst; - } - *dst++ = '\''; - } - - strncpy(dst, (char *)old_p, (p - old_p)); - dst += (p - old_p); - - if (*p == '\0') - { - *dst++ = '\''; - *dst = '\0'; - return dst; - } - - char hex_char_buf[5]; - const char *a; - switch (*p) - { - case '\r': a = "\\r"; break; - case '\n': a = "\\n"; break; - case '\t': a = "\\t"; break; - case '\'': a = "\\\'"; break; - case '\"': a = "\\\""; break; - case '\\': a = "\\\\"; break; - case ' ': a = " "; break; - default: - /* Build \xNN string */ - hex_char_buf[0] = '\\'; - hex_char_buf[1] = 'x'; - hex_char_buf[2] = "0123456789abcdef"[*p >> 4]; - hex_char_buf[3] = "0123456789abcdef"[*p & 0xf]; - hex_char_buf[4] = '\0'; - a = hex_char_buf; - } - strcpy(dst, a); - dst += strlen(a); - p++; - } -} - -static char* get_escaped(const char *path, char separator) -{ - char *escaped = NULL; - - int fd = open(path, O_RDONLY); - if (fd >= 0) - { - char *dst = NULL; - unsigned total_esc_len = 0; - while (total_esc_len < 1024 * 1024) /* paranoia check */ - { - /* read and escape one block */ - char buffer[4 * 1024 + 1]; - int len = read(fd, buffer, sizeof(buffer) - 1); - if (len <= 0) - break; - buffer[len] = '\0'; - - /* string CC can expand into '\xNN\xNN' and thus needs len*4 + 3 bytes, - * including terminating NUL. - * We add +1 for possible \n added at the very end. - */ - escaped = xrealloc(escaped, total_esc_len + len*4 + 4); - char *src = buffer; - dst = escaped + total_esc_len; - while (1) - { - /* escape till next NUL char */ - char *d = append_escaped(dst, src); - total_esc_len += (d - dst); - dst = d; - src += strlen(src) + 1; - if ((src - buffer) >= len) - break; - *dst++ = separator; - } - - } - - if (dst) - { - if (separator == '\n') - *dst++ = separator; - *dst = '\0'; - } - - close(fd); - } - - return escaped; -} - -char* get_cmdline(pid_t pid) -{ - char path[sizeof("/proc/%lu/cmdline") + sizeof(long)*3]; - sprintf(path, "/proc/%lu/cmdline", (long)pid); - return get_escaped(path, ' '); -} - -char* get_environ(pid_t pid) -{ - char path[sizeof("/proc/%lu/environ") + sizeof(long)*3]; - sprintf(path, "/proc/%lu/environ", (long)pid); - return get_escaped(path, '\n'); -} |